Justi18n
Upload your i18n files and get instant translations.
At a glance
Starts at
Free
No paid plan found on the vendor's site, September 2026.
Free tier
No
Platforms
Web, Chrome Extension
Best for
Developers, translators
Not for
Proofreaders with formatting needs
3.8 out of 5
Scored by a Toolio reviewer after real useOur verdict
JustI18n quickly converts text for multiple languages using GPT. Best for teams needing fast, flexible translation solutions. Not ideal if you need professional quality translations or advanced editing features.
✓What it does well
SpeedProvides quick translations from uploaded files.
CompatibilitySupports JSON, Chrome extension message files and Java properties.
OpenAI IntegrationUses your OpenAI API key for translation requests.
✕Where it falls short
Limited QualityMay not produce high-quality translations for all languages or contexts.
No Editing ToolsDoesn't include advanced editing tools like proofreading or formatting options.
Free Plan LimitationsThe free plan has limitations on file types and translation length.
Key features
API Key RequiredNeeds an OpenAI API key to function properly.
Local Run OptionCan run translations locally via browser extension or JSON file upload.
Sample Files IncludedOffers sample [sample.json] for testing purposes.
Openai Api Key IntegrationUses your openai api key for translation requests.