- https://github.com/anthonynsimon/parrot
- http://www.mojito.global/
- https://lingohub.com/
- https://www.transifex.com/
- http://pootle.translatehouse.org/
- http://www.oneskyapp.com/
- https://phraseapp.com/
- http://crowdin.net/
- http://zanata.org/
- http://locize.com/
- https://weglot.com/
- https://poeditor.com/
- http://www.getlocalization.com/
- https://webtranslateit.com/en
- http://www.localeapp.com/
- https://translate.twitter.com/
- https://www.facebook.com/translations
- https://translate.adobe.com/
- http://translation.typo3.org/
- https://translations.launchpad.net/
- http://gengo.com/
- https://localise.biz
- http://weblate.org/
- http://virtaal.translatehouse.org/?id=virtaal/index
- http://poedit.net/
- http://blog.glotpress.org/ (https://translate.wordpress.org/projects)
- https://userbase.kde.org/Lokalize
- https://wiki.gnome.org/Apps/Gtranslator
- https://localizejs.com/
- http://www.smartling.com/
- https://www.qordoba.com/
- https://git18n.com/
- http://www.unicode.org/cldr/charts/27/supplemental/language_plural_rules.html
- http://translate.google.fr/
- http://www.freetranslation.com/
- http://www.gingersoftware.com/fr/proofreading
- https://serge.io/ (Continuous Localization)
- https://github.com/mmoreram/translation-server
- https://github.com/schmittjoh/JMSTranslationBundle
- https://github.com/liip/LiipTranslationBundle/
- https://github.com/lexik/LexikTranslationBundle
- https://github.com/Happyr/TranslationBundle
- https://github.com/Elao/ElaoFormTranslationBundle
- https://github.com/Kunstmaan/KunstmaanTranslatorBundle
- https://github.com/Incenteev/IncenteevTranslationCheckerBundle
- https://github.com/servergrove/TranslationEditorBundle
- https://github.com/matteosister/TranslationBundle
- https://github.com/Wiakowe/TranslationBundle
- https://github.com/Pierstoval/TranslationBundle
- https://github.com/fre5h/TranslationBundle
- https://github.com/GiZystems/TranslationBundle
- https://github.com/dinecat/I18nBundle
- https://github.com/PUGX/PUGXI18nBundle
- https://github.com/emmanuelballery/EBTranslationBundle
- https://github.com/webfactory/icu-translation-bundle
- https://github.com/adrianolek/AOTranslationBundle
- https://github.com/Orbitale/TranslationBundle
- Facebook locales: https://www.facebook.com/translations/FacebookLocales.xml
- List of locales supported by LingoHub: https://lingohub.com/blogs/2014/03/lingohub-support-language-codes-localization/
- Traduire efficacement une application symfony: https://welcomattic.github.io/traduire-efficacement-une-app-symfony/
I've also recently launched a new tool called Dilingual for website translations. Feel free to check it out :)