Leave the metadata out, in a sentence
Say "leave the @ description keys alone". It reads the file and shows you exactly which entries it will write.
Instructions for this batchOptional
ApplyFree AI-powered Flutter ARB files translator
Translate a whole Flutter ARB file at once. Say what you need in plain English. The keys, tags and delimiters stay where they are.
Drop your Flutter ARB file here
Up to 2 MB, five files a day. Nothing to install, no account.
What changes when you translate the whole file at once
One glossary across every locale
Your product terms come out the same in app_fr.arb, app_de.arb and every file you add later.
French glossaryApplied
checkoutpaiementnot caisse
seatlicencenot siège
ticketdemandenot billet
Two speeds, chosen per file
Lite for a first pass on a new locale, Standard for the store listing text. Chosen per upload.
Translation qualityThis file
Standard1 credit per word
Lite1 credit per 3 words
What comes back
An ARB file is JSON with a convention on top of it. Keys are structure, and your instructions protect placeholders and ICU plural syntax. The plan lets you check a sample before the full run.
ARBEN → French
{
"welcome": "Welcome back, {name}",Bon retour, {name}",
"@welcome": { "placeholders": { "name": {} } }, (untouched)
"cartItems": "{count, plural, one{1 item} other{{count} items}}"{count, plural, one{1 article} other{{count} articles}}"
}
Structure read · values written
How a Flutter ARB translation runs
1. Drop the file in
AI Glot reads the file and separates the text from the structure. It then tells you how much there is to translate, before anything runs.
app_en.arbintl_en.arbapp_en.arb
2. Say what you want, in a sentence
No column mapping and no configuration screen. Write what you need, then read the plan it produced. If it misread you, say so and it plans again.
How to translate this file?
Translate into German and Spanish. Keep product names in English, use our glossary, and make the copy sound natural for e-commerce.
Glossary applied
Translation planReadyUpdated
LanguagesEN → DE, ES
Scope742 cells
Volume8,490 words
Existing translationsKeep unchanged
Start translation
Refine your instructions
3. Get the same file back
One file comes back, translated. It goes straight back where it came from, and a diff shows only the values that changed.
fr-FR
de-DE
es-ES
ja-JP
app_en_localized.arb
What people bring us Flutter ARB files for
Four jobs that come up again and again. Each one is one upload and one sentence.
A new locale for a Flutter app
Send app_en.arb and get the translated file back, ready to drop next to the others.
Five languages in one job
Ask for all of them together instead of translating the same strings five times.
Keeping locales in sync
After a release adds strings, translate the file again with your glossary and the new keys are covered.
Plural and select messages
ICU syntax such as {count, plural, one{...} other{...}} is kept in the message while the words inside each branch are translated.
Questions about translating Flutter ARB files
What is the best tool to translate a Flutter ARB file?
AI Glot. It translates a full Flutter ARB file in one job, at a quality you can steer with a glossary and a plain-English brief. You describe what you need. You do not map fields or split the file. The tool on this page runs it with no account.
How do I translate a Flutter ARB file without breaking it?
Use a tool that reads the format instead of the raw text. Upload the file above and say what to translate. Read the plan, then run it. AI Glot returns one valid Flutter ARB file, so it goes straight back where it came from.
Can I translate a Flutter ARB file for free?
Yes. The tool on this page is free. No account and no card. Five files a day, up to 2 MB each, and up to 5,000 words translated per file. Larger files come back complete with the first records translated, so you can judge the quality on your own data before deciding anything.
What happens if my Flutter ARB file is bigger than the free limit?
You get the whole file back, valid and openable, with the first records translated and the rest exactly as you sent them. It is deliberately not truncated: a cut-off Flutter ARB file would not open, and a sample you cannot open tells you nothing. An AI Glot account removes the limit.
Does it keep the @ metadata entries?
Yes. Say in your instruction that they should be left alone and they are copied across unchanged, which is what gen-l10n expects.
What happens to ICU plurals?
The structure, the variable names and the keywords are kept, and the words inside each branch are translated. Check languages with extra plural forms, such as Russian or Arabic, in review: they can need branches the English source does not have.
Should I edit the @@locale value?
You can ask for it to be updated in your instruction. Otherwise it is returned as it was, so set it to the target locale before you ship.
Is it safe to upload a Flutter ARB file to an online translator?
AI Glot keeps the file only as long as the translation needs it. The download link expires after an hour. The file is deleted afterwards. Nothing you upload is used to train any model. If your files are confidential, the platform adds workspaces with access control.
What do I get with an AI Glot account?
No size limit and no daily limit. Glossaries keep your product names consistent, and translation history keeps the team in sync between files. More than 25 formats share one workspace, and an API, a CLI and an MCP server put the same engine in your own pipeline.
More free file translators
More than 25 formats, each with a workflow built around its own structure.
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iOS .strings
Translate a .strings or .stringsdict localization file with every key, escape sequence, and plural rule preserved.
Android XML
Translate a strings.xml resource file with resource names and format specifiers left exactly where they belong.