- Via Multilingual Mac: The Apple Support forums now support French and German along with English, Chinese, Japanese, Spanish, Korean and Portuguese. Word 2016 has added basic support for Indic scripts. The MacOS 10.12.4 update includes improvements for right-to-left language support and adds Shanghainese dictation.
- Proloquo2Go now supports French along with English and Spanish as of the 4.4 update. The voices include Metropolitan French and Canadian French options. There’s also bilingual support for Canadian English and French. Très bien !
- An excellent Twitter thread by @erabrand about troubling design trends, like using colour instead of bold/italic, that exclude disabled readers.
Category: Internationalisation
Be mindful of regional date and time formatting
This entry is related to ‘Use flexible date and time formats‘. Every region and language has its own standard for formatting dates and times. If you get it wrong, or assume that only one format exists within a language, then you may end up annoying – or worse, confusing – your users.
What not to do:
Behance, an online portfolio site run by Adobe, seems to have its date format hard-coded to the US ‘Month Day Year’ format regardless of what your language is set to. As you can see here, my user interface is temporarily set to French. The date says ‘Membre depuis le mai 11, 2013′ (member since 11 May 2013). This is wrong for French; it should be ’11 mai 2013’. If you’re going to have non-English text on your site, do not hard-code the month/day/year format. In most languages, the month does not precede the day; they use a logical format from smallest to largest (day/month/year) or largest to smallest (year/month/day). This is from Adobe, not a tiny company run by two people with a lot of work and very little time. We’re talking about a multi-million-dollar company with enough time and resources to get this right.
Actually, even if your site is only in English, you should still be careful about date formatting, since the English-speaking world doesn’t use one date format. Britain, Australia, New Zealand, India, South Africa and most other English-speaking countries use the day-month-year format; the US, some of English-speaking Canada, the Philippines and Belize use month-day-year.
Even if your site is going to be used only in the US, there may be the likelihood that your site will be written in Spanish, or in some regions, Chinese, Haitian Creole, Brazilian Portuguese, Japanese, Arabic or another language spoken by a large immigrant population. The same rules still apply: make sure your date-formatting system can accommodate these languages.
Just don’t hard-code month/day/year. It’s culturally insensitive. If you’re going to hard-code any date format, hard-code year/month/day.
Brief updates – the good, the bad and the fascinating
Dropbox has been called out here before for date format foolishness, but they seem to be improving their internationalisation ever so slowly. If you look at the language drop-down, there are two English options now – hopefully that means English date formats will no longer default to Month/Day/Year. (They’ve also done it right by retroactively labelling English US for what it is, instead of having ‘English’ and ‘English UK’.) I want to say Latin American Spanish was added recently too, but I could be wrong.
iOS 9 has added some new language features, including a new Chinese system font, dictation support for more languages, Finnish and Korean spellcheckers, French/English and German/English bilingual dictionaries, improved Japanese autocorrect, predictive text for a variety of languages including Korean, Russian and Turkish, Canadian English and Canadian French user interfaces, and the option to switch between Arabic and Hindi number systems (h/t Multilingual Mac).
OS X El Capitan (10.11) has just added some new Eastern language support features as well, including the same Chinese system font that is now in iOS 9. There’s also new dictation for Arabic and Hebrew. No news of any new French, English or Hindi localisations – it’s Apple’s inconsistent internationalisation, yet again (and out of step with their other products and other operating systems).
Windows 10 had some localisation-related fail during the upgrading process, that required people to set their OS to English (US) in order to upgrade it properly. You shouldn’t have to change your system language in order to upgrade your computer, especially if you don’t speak English as a primary language. Good job, Microsoft. (That was sarcasm.)
Proloquo2Go is now available in Spanish! More info. There are bilingual English/Spanish children’s voices included with the new Spanish localisations, which are probably targeted towards the large bilingual Latino/Hispanic community in the US. (Interestingly, the boy’s voice has a recognisable Spanish-speaking accent when speaking English, whereas the girl’s voice has a recognisable American accent when speaking Spanish.) Adult voices come in Castilian Spanish and Latin American Spanish versions.
People on any region format other than US will not be able to see Apple’s News app on iOS 9 until iOS 9.1 – and I think that’s just for the UK and Australian region formats. (I know people are saying ‘people in other countries can’t see it’, but it’s tied to region format, not geographical location; anybody can set their region format to any country or language they want on an iOS device, and it doesn’t even have to match the UI language. You can set your region format to one language and have your phone set to a different language and your keyboard on another. Remember that when you set up an iOS device for the first time, it asks your language and region separately. I’ve seen screenshots of phones set to English but the region format set to Turkish.)
Skype In Your Language is a community-supported project for Windows and Linux that provides Skype localisations for languages and dialects that aren’t officially part of Skype releases. Not for the Mac, unfortunately – there’s no easy way to do unsupported localisations on OS X.
TalkTablet is an AAC (Assistive and Augmentative Communication) app that comes in iOS, Android and Kindle editions. It’s also available in multiple languages, unlike Proloquo2Go which is only available in English and Spanish.
Proloquo2Go and language – where assistive tech and language meet
It’s always good to talk about the ways developers have improved their offerings – it’s a nice breath of fresh air after finding so many issues.
AssistiveWare’s Proloquo2Go is an iOS app for assistive and augmentative communication – it’s a text-to-speech app that allows people who need help with speech, or who can’t speak, to communicate with other people. One of the major advantages of using Proloquo2Go with an iPad, iPhone or iPod Touch is that it’s a lot cheaper than using a dedicated text-to-speech device like a Dynavox (which is a Windows PC with specialised text-to-speech software installed, and costs about three times as much as a basic iPad if not more).
Proloquo2Go has recently added vocabulary sets for British and Australian English. In the past they had voices for multiple English dialects, but all the vocabulary and spellings for the selected items was American, which led to people having the right accent, but having the wrong words to talk about things without somebody going in and editing the default vocabulary sets. People can now talk about their school holidays instead of vacations, eat crisps instead of potato chips and have cars represented with the steering wheel on the right instead of the left for people who live in left-hand drive countries. It took them a few years to do this, but I’m glad it’s been done. Any move away from a development mindset that assumes the USA is the sum total of the English-speaking world is a positive move that deserves praise here. (Now, if only you had an option to change the voices installed at default, so you don’t have default American voices even if you’re set to English Australia, and have to re-install your preferred accented voices every time you update the application.)
They’re also starting to expand beyond English, adding a Spanish option. Like the English option, there will be different vocabulary settings for different Spanish dialects, so both Spanish and Latin American speakers can use the words that make the most sense for them. The Spanish translation isn’t out yet, but they’re starting work on it. Proloquo2Text, their text-to-speech product for people who don’t need to use symbolic communication, has Spanish voices available, but that’s different from creating a symbolic text-to-speech system that anticipates grammatical usage, contains pre-loaded vocabulary and recognises the cultural nuances that may come up in Spanish-speaking countries.
I’ve got one tiny qualm however – I was playing around with the new English settings to see the difference between the UK and US vocabulary options. Choosing UK English doesn’t change the spellings in the settings (just for the pre-set vocabulary options), so you still see a lot of American spellings in the UI – a lot of missing Us in words like ‘colour’. Let’s be fair though – this may not be AssistiveWare’s fault but Apple’s, however; until iOS 8 it wasn’t possible to distinguish between regional variants of a single language in the UI if you used native iOS tools, unless the application was made by Apple themselves. Maybe this will be changed in a later release, since it’s an easy localisation to make.
Subtitling/captioning resources in English, French, Spanish and German
Here is a roundup of some resources for people who create subtitles or captions for online video (or in some cases, links to subtitled and captioned media). A full article about subtitling and captioning is coming soon, but in the meantime, have a list of resources in English, French and Spanish, along with a link for German-language users of subtitled media. I’m personally limited to the languages I can read, but if readers have other suggestions I’d be glad to add them.
- The Irish National Disability Authority’s suggestions for good subtitling, captioning and written descriptions of auditory content.
- The US Described and Captioned Media Program’s Captioning Key, a guide for captioning and subtitling video according to ADA (Americans with Disabilities Act) guidelines.
- The Canadian Association of Broadcasters’ Closed Captioning Standards and Protocol for Canadian English Television Programming Services (PDF document) – primarily for TV, but some of the suggestions could be used for Canadian content served via online streaming services.
- The BBC’s Online Editorial Subtitling Guidelines, which are used for all BBC programmes that stream online.
- Mar González, a Spanish translation and accessibility specialist, has an article explaining many principles of Spanish-language subtitling (article is in Spanish) called ‘Subtitulado para sordos’ or ‘Subtitled for deaf people’.
- General de la comunicación audiovisual, the law in Spain governing the use of subtitles/captioning and other accessibility issues.
- Medias sous-titrés (Subtitled Media) – a French-language site with news and articles about subtitled media, including TV programmes and films.
- Kalyzee’s guide to creating good subtitles in French.
- Martin Dutrait’s Dossier sous-titrage, a guide to French-language subtitling (and subtitling generally, though the site is in French).
- GRETA and STARKS – services for subtitled and audio-described German-language media
Link roundup: 12 April 2015
Most of these links are OS X-related for now – I think the next roundup will have a Windows or Linux focus to make up for it.
- How to set the default language on OS X to English Australia or English UK. Useful for people who want to use a British or Australian English spellchecker on OS X.
- ATMac – a blog about accessibility for disabled Mac and iOS users
- If you’re non-binary and use Facebook, there are options to use gender-neutral pronouns and custom genders on both the English (US) and English (UK) localisations.
- NVAccess – the makers of the NVDA screenreader, which is a Windows screenreader for blind and visually impaired/partially sighted people that’s completely free.
- Multilingual Mac – a blog devoted to using your Mac in languages other than English
If you’re going to translate, translate thoroughly
If you’re going to translate a site into another language, make sure the translation is thorough. This is related to one of the first entries here, ‘Provide accurate translations’, but it relates to a specific problem that results in half-translated text, as opposed to translations where all the text is changed to a new language, but the words are simply wrong or the sentence structure is weird.
I’ve noticed this with websites and apps that were originally written in English and later translated to a different language. If you’ve noticed this with other languages too, you can mention them in the comments.
What not to do
If you try to use the FedEx US website in Spanish, half the text is still in English. That wouldn’t be as much of a comprehension problem for somebody who’s fully bilingual in both languages, but it’s still jarring to see text in two languages:
Tumblr’s French translation has a lot of untranslated English text interspersed, including some huge date and time format failures.
There are three mistakes here:
- the (numerical!) date is written in the American ‘month/day’ order, which is always wrong in French – if you want to say 17 October, it would be 17/10
- there is a 12-hour time stamp of 6:55am – French uses the 24-hour time format and the time should be written as 6h55
- ‘ven’ (short for ‘vendredi’ or ‘Friday’) is capitalised. Days of the week are not capitalised in French. I’m surprised Friday was even translated to vendredi!
I’m not sure how many people actually use the French translation of Tumblr, but even so, if you’re going to translate your website, make sure your text is translated. The ‘archive’ page on Tumblr has a similar problem, with completely untranslated month names – it should be ‘janvier’, not ‘January’, and the date format is again wrong for French. (I’m starting to lean towards recommending against using the US date format at all if you plan on translating a website, instead using the unambiguous ISO date standard, since it seems to be a revealing error in translations.)
Their newest UI change, where recent activity is shown by clicking on a thunderbolt icon in the top bar, has a similar problem with mostly untranslated text. Dates are shown in English (using the Month Day, Year format), as are phrases like ‘one week ago’. Again, the date format is wrong for French.
Mozilla’s Firefox add-ons page seems to have the same problem as Tumblr:
Most of the text is in German, except for the date, which says ‘Benutzer seit [translation: User since]: July 9, 2010′. The date should be translated into ‘9. Juli 2010’. The bottom bar, where the copyright section is located, has more untranslated text:
‘Report Trademark Abuse’ and the copyright notice have not been translated into German. Not to mention, the assumed word length for some of those words is too short for German.
This is frustrating, because Firefox gets top marks for the sheer amount of localisations available for it; it’s too bad that Mozilla’s centralised websites aren’t up to scratch.
Something similar occurs on Behance, Adobe’s online portfolio website. If you set your language to French, there’s still a lot of English text throughout.
If your translation to another language or language variant is incomplete, then add a warning letting the user know that they may come across text that’s in a different language. That seems more thoughtful than trying to use a website or application in Chinese, only to have lots of text interspersed throughout in another language. When you change to a language that isn’t available in OS X, the operating system will warn you that menus and applications won’t be available in that language. Etsy did something similar with their Russian translation – if you chose Russian, it told users that it was a beta and that some English text would still be there.
Apple’s inconsistent internationalisation
Apple’s work towards internationalising their products has been incredibly inconsistent. There are some glowing examples (primarily in iOS and on regional Apple websites), but there are some places where their efforts could be improved, particularly on the desktop and on iCloud.
(most recent update: 8 August 2018—many of the complaints in previous versions of this article have been rectified, though there is still room for improvement.)
iOS: Mostly good iOS comes in a wide variety of languages and dialects – in fact, its language selection is more comprehensive than that of OS X. The user interface and Apple-made apps are designed to reflect different languages, cultures and regions and it’s clear there’s some effort at making sure their apps are culturally sensitive. Even English-language applications change based on what iOS language and region format you’ve chosen. On Pages for iOS, if your OS is set to UK English and Region Format UK, you can create envelopes whose addresses list cities, counties and postcodes instead of cities, states and ZIP codes and CVs instead of résumés.
Regional websites The same attention paid to iOS itself applies to the iOS 8 marketing websites on regional versions of Apple.com – at least for selected languages. In the iOS screenshots, many regional pages show app screenshots in the same language the copy is in, so the German screenshots show German text, featuring people with typically German names. The same applies to France, Thailand, the UK, Australia, Italy and Brazil. There are even subtle differences between language variants for some countries – Mexico and Spain have different copy and screenshots. The UK and Australia have slightly different names and time formats (UK with 24-hour time and Australia with 12-hour time). The Japanese, Korean and Chinese pages go even further, changing both the people in the photos and the text. (And they don’t use the same East Asian people for China, Japan and Korea either.) Every page is written in the appropriate language or dialect though – there’s no English on the Spanish or Thai page. Even the Canadian page uses Canadian spelling.
This is all really impressive work and Apple deserves credit for paying so much attention to their international iOS user base.
Apple starts losing their touch after a while, though. The English-language Indian page uses the same time format as the Australian screenshots, but the same text and people as the British one. The Swedish, Dutch, Romanian, Portuguese, Polish and Russian pages use the same images as the North American pages. New Zealand uses a mixture of the British and American screenshots – and ‘Favourites’ is written incorrectly (for New Zealand, anyway) in the penultimate screenshot (though it’s written with a ‘U’ everywhere else), but Control Centre is written properly for NZ. A similar issue appears with Taiwan, which uses a combination of the Chinese and North American screenshots. Canada’s is identical to the US page, except for the spelling in the copy (‘favourite’ has a U).
I can give Canada a pass, since there isn’t a specific Canadian English user interface in iOS. But that doesn’t apply to the non-English-speaking countries like Taiwan, Poland, Portugal, Romania, Sweden and the Netherlands. All those languages are available in iOS. For India, they could have included photos of Indian people at the very least. Some of these mistakes were easily avoidable, though – no American spellings or Month/Day/Year date formats should have appeared on the New Zealand screenshots, and English of any variety should not be on the Taiwanese page at all.
Verdict for iOS: There has been some painstaking work put into these internationalisations and I’ve got to give them credit. But there are a few blunders here and there that keep it from being perfect – at this point, though, they’re second only to Google. But their efforts are far and away ahead of Microsoft – and Apple’s own OS X division.
OS X: You tried? Let’s compare this with OS X, which is more like Microsoft in the 90s, making the minimum effort.
Simplified Chinese is the only language for which OS X sample screenshots have been localised. That’s right, the screenshots for other languages and scripts like French, Dutch, Russian, Greek, Japanese, Portuguese, Spanish, Thai, German, Traditional Chinese and Korean are still in English. Even if they use non-Roman letters like Thai and Russian. The copy is written in the right language (or dialect, in the case of English-to-English ‘translations’), but that’s what everybody expects. Nobody expects to go to a website designated for the Italian market to find English copy written there. Even with the inconsistencies on the iOS pages, they’re much better than OS X. I do give Apple credit for careful localisation of each page though – you won’t find American spellings and vocabulary littered across the UK or Australian pages (unlike Microsoft) or strings of untranslated English text on the French page.
Languages
(As of MacOS High Sierra, Hindi is available as a UI option.)
The situation isn’t much better in the OS itself for some languages. OS X is not available in Hindi. Yes, Hindi. One of the largest world languages out there. Hindi is available under Windows and iOS as of version 8. Windows has a wider variety of world languages available, including African languages (Swahili, Xhosa, Zulu and many more) which are completely unrepresented in OS X, with the exception of Arabic.
For a point of comparison: Windows’ language list (as of Windows 8.1) is here.
Dialects
(Please note that the following section on language variants will soon be outdated; MacOS is finally starting to rectify this problem and will be including British English, Canadian French and Australian English in the next major release. —FG, 8 August 2018.)
The only English dialect available for the UI is American. No British, no Australian, no Canadian, no Indian. They can’t even be bothered to change the spelling (how hard is it to add a ‘U’ to the Favourites sidebar? it took me a few minutes), much less modify the vocabulary – no ‘Bin’ for Trash for a hypothetical English (UK) version, for example. The same applies to apps (with the sole exception of iTunes, which is localised for UK English) – sample documents in Pages for iOS change based on the English dialect you’ve chosen as your default. Addresses can be composed of city, county and postcode for the UK, and cities, states and zip codes for the US. You’ll only see cities, states and ZIP codes on Pages for OS X. That cultural sensitivity doesn’t exist on OS X – apparently the US is the sum total of the English-speaking world.
This is a backward and parochial stance. Windows, once notable for steadfastly ignoring English dialects other than American, has had an installable British English version for the past two years. English is spoken outside the United States, where it didn’t even originate. How can you be so thoughtful on your websites and in iOS, but not at all in OS X? They do the bare minimum: spellcheckers and date format options, but not the actual user interface. This is like Microsoft in the 90s and early 2000s.
French suffers from the same problem as English, though unlike English only the European variant is available. Canadian French is available on iOS, but it’s not on OS X. In Apple’s defence, though, they’ve introduced Mexican Spanish to Yosemite (before, the only Spanish available was Peninsular Spanish – this is recognisable by the use of ordenador to refer to a computer, rather than the Latin American computadora). This is the first time a subset of a Latin-script language (there are multiple Traditional Chinese versions available) has been added to the OS where most of the differences concern vocabulary and sentence structure, rather than larger differences like Brazilian and European Portuguese.
It’s becoming more common to offer multiple subsets of languages, especially in mobile operating systems. The idea that there is One Dialect To Rule Them All (and in the darkness bind them!) is quickly becoming passé. Unfortunately, Apple isn’t the leader here, despite their forward-looking reputation – they’re well behind Google, Microsoft, Facebook, Twitter, Pinterest, Etsy and other US-based tech companies. As I said before, they’re the 1990s Microsoft in this regard.
Verdict for OS X: What are you doing, Apple? OS X needs to gain parity with iOS. If you’re going to try to bring the platforms closer together, you should add more languages and dialects, including Hindi, Canadian French/Québécois, UK English, Australian English and Indian English, since these languages and dialects are already available for iOS.
Update, 16 May 2015: Apple’s inconsistency in internationalisation persists. According to Multilingual Mac, the Apple Watch will be coming in much fewer languages than iOS. This may present a problem for people whose iPhones sync with the Apple Watch, but don’t have the iPhone set to a language available on the Apple Watch. Languages like Portuguese, Russian and Hindi are notably absent from this release – it seems to be mostly a handful of Western European languages, Chinese and Japanese.
Update, 25 May 2015: Brazilian Portuguese, Thai, Turkish, Danish, Dutch, Swedish and Russian have been added to the Apple Watch, according to Multilingual Mac. Most of these are European languages (or a South American dialect of a European language), but it’s good to see Thai added.
Update, 23 October 2015: iWork for iCloud, despite having been out for two years, still does not support British English spellcheckers. If you don’t write US English, you’re a second-class citizen. If you’re part of the rest of the English-speaking world, stick with Google Docs. European Portuguese speakers are similarly left out for now.
Update, 8 August 2018: Apple is becoming more consistent. In the upcoming MacOS Mojave, the operating system will include British English, Canadian French, Australian English and a second Traditional Chinese localisation geared towards users in Hong Kong. While this is less extensive than the English options available on iOS, it’s a major improvement.
Remember that languages have multiple variants
(updated 20 October 2018 to remove outdated information)
Regional differences can include vocabulary, spelling, accent or script. I’ve noticed this primarily with English, Chinese and Portuguese – developers think, probably unconsciously, that US English, Brazilian Portuguese and Simplified Chinese are the only versions of those languages that exist. Admittedly these are broad user bases, but there are still people in other Portuguese-, Chinese- and English-speaking countries who may very well appreciate having their dialect represented. In the case of English, between one-third and half the native speakers use ‘Commonwealth’ (for lack of a better word) English forms (that is, colour is written with a u, centre is written with the r before the e and the ‘l’ is doubled in some verbs like cancelled, labelled and travelled). Apart from the US, Philippines and Liberia, every other English-speaking country, including high-population ones that use English as an administrative language like India and Nigeria, uses a form of Commonwealth English. Large companies’ ignoring Commonwealth dialects may come across as arrogant or wilfully ignorant, especially if that ignoring extends to spellcheckers and displayed dates.
If your team has the time, money and people available to handle this, including multiple variants of a language is a good idea. Microsoft and Apple learned this lesson with Windows 8 and MacOS Mojave. If you are a large company and want to use the word Favourites for a bookmarking system, you’ll want to create versions that reflect both common spellings of this word. Smaller companies have fewer resources and may not be able to maintain multiple translations, but that’s not an excuse for Microsoft or Adobe to do the same thing.
If you’re a developer from an English-speaking country outside the US, for instance, you don’t necessarily have to cater only to the American audience by spelling words differently from your normal style without offering a version that reflects both your dialect and the dialect of many of your users. There are customers outside the USA who may appreciate their local dialect being included. If you take the entire Commonwealth plus Ireland into account that’s over a billion people. Many of these countries, like India and Nigeria, have other dominant languages, but administrative and academic English usually follows a British-based standard.
The same applies to Chinese if you’re familiar with both Traditional and Simplified Chinese scripts. There are Chinese-speakers outside the People’s Republic of China and Singapore.
And in the case of Portuguese, there are enough differences between European/African Portuguese and Brazilian Portuguese that it helps to offer both if you can. Users of Blizzard Software have complained about a ‘Portuguese’ version for Portugal that is written in Brazilian Portuguese, making it difficult for Portuguese users to understand. Offer both if you can – don’t claim to offer something only to have it not meet the criteria.
It’s especially annoying when you encounter only US English, Brazilian Portuguese and Simplified Chinese as options in an application, but the same application offers Canadian French and Swiss German along with French and standard Hochdeutsch. English has a much larger user base than Swiss German, and the spelling differences between Swiss German and Standard German are similar to British, Canadian and American spellings.
And if you claim to offer a localisation in a specific dialect, be sure it’s actually in that dialect. You don’t want to have an app that claims to be in Serbian Cyrillic only to have portions of it written in Latin letters, or something supposedly in Swiss German that uses the spelling standards of Germany and Austria. If I choose English (UK), I shouldn’t see a Favorites panel or a Help Center . For example, in the British English version of Windows 8, most spellings and terms are changed (so I have a Favourites panel in Windows Explorer), but they left some words like Accessibility Center (sic) unchanged. Luckily, Microsoft corrected this to Centre in Windows 10.
If free and open-source software products can offer different language variants, so can paid-for software projects. Microsoft and Apple have billions of dollars each. Surely they could afford a localisation team. The Gimp, for example, has at least two English versions available, as does LibreOffice. If you’re an open-source project, explicitly allow multiple language variants if people are willing to work on them. Even some commercial software projects allow users to contribute languages via platforms like Transifex.
If you do not have the resources to make multiple variants of a language, avoid using contentious words as much as possible. If you want to use a bookmarking system, use words whose spelling does not change, like Bookmarks, Liked or Starred rather than Favourites. On a more casual site you could abbreviate ‘Favourite’ to ‘Fave’, thus avoiding the problem of variant spellings. There are some technically ‘British’ spellings that are secondary variants in the US (but American spellings tend to be acceptable only within its borders, at least for native speakers). For example, you might want to spell cancelled and cancelling with two Ls, theatre with the -re ending, and grey with an e as a compromise.’
Write language labels in their own language
(Edit, 24 Oct 2017: included Dropbox as a good example of what to do)
When creating language selectors, make sure the language labels are written in that language, not the language the page is currently on if it differs. For example, on an English-language web page, German should be written as Deutsch, not German. This makes it easier for people to find their own language. Someone browsing a website that defaults to Japanese and wants to find German may not know that ドイツ語 means Deutsch. But if the link says Deutsch they will be able to recognise it. Wikipedia uses this strategy when labelling languages in the sidebar – if you want to find Czech, you just need to find Čeština. Also, make sure the languages are alphabetised by their own name, not by their names in English or another language.
Example of what to do:
Dropbox writes language labels using their own names, so German is Deutsch and Indonesian is Bahasa Indonesia. (They also get a few other things right too – they label all dialects for English, Chinese and Spanish and include indicators for Norwegian and Portuguese as well. Flags are not used to represent languages. The languages are alphabetised according to their own names, not their English names. The Ukrainian translation is a beta and is marked as such.)
Example of what not to do:
This is a screenshot from SquirrelMail, a popular webmail web app that comes installed with many hosting packages. The language chooser has all the languages listed in English (except for Malay and Indonesian, for some reason), regardless of whether the UI language is set to English or not. If I speak Arabic and want to find it in a list, I don’t want to search for the English name.
Bad:
Allemand
Anglais
Chinois
Espagnol
Français
Italien
Hongrois
Japonais
Néerlandais
Polonais
Portugais
Russe
Suédois
Tchèque
Good:
(language drop-down or unordered list)
Čeština
Deutsch
English
Español
Français
Italiano
Magyar
Nederlands
Polski
Português
Русский
Svenska
日本語
中文