Translate Your Flutter App¶

Add languages to your Flutter app with clean, valid ARB files — ICU plurals, placeholders, and metadata all preserved.

Why Flutter Localization Gets Painful¶

Flutter's localization stack is powerful, but the day-to-day friction is real:

• One .arb file per locale, and they drift out of sync
• ICU plural and select syntax is easy to break by hand ({count, plural, ...})
• Named placeholders ({userName}) must match exactly across every language
• The @-prefixed metadata (@@locale, descriptions, placeholder types) is easy to mangle
• A single malformed brace fails flutter gen-l10n
• Keeping tone and terminology consistent across locales is manual work

Localization should be a solved problem. In practice, ARB files become the part of the project nobody wants to touch.

GetTranslated.AI handles the translation part — producing clean, valid, gen-l10n-ready ARB — so you can focus on the app.

What Flutter Developers Actually Need¶

Not enterprise workflows. Not translator dashboards. Not glossary-management overhead.

What matters:

• valid ARB that passes flutter gen-l10n the first time
• keys preserved exactly
• ICU plural/select structure kept intact
• named placeholders untouched ({name}, {count})
• @@locale set correctly per file
• consistent tone across languages

The goal is straightforward: translated ARB that works the first time you drop it into lib/l10n/.

The Flutter Localization Flow¶

1. Point us at your ARB files¶

Your template file — usually lib/l10n/app_en.arb (the template-arb-file in your l10n.yaml) — is the source of truth. Whether your files are named app_en.arb or a bare en.arb, it works.

2. Sync with the CLI¶

# from your Flutter project root
translate sync

The CLI finds your .arb files under lib/l10n/ (and other common locations), uploads the template, translates, and writes each target locale back — app_es.arb, app_fr.arb, and so on. If your files live somewhere custom, translate init lets you record the directory once.

3. Get instant translations¶

Review your critical flows — onboarding, menus, error messages. AI handles the repetitive strings; you focus on the ones that need human judgment.

4. Run gen-l10n and ship¶

flutter gen-l10n

Your generated AppLocalizations picks up every new locale. Your build still passes.

Fully Compatible With ARB and intl¶

We support the Flutter localization stack and do it thoroughly:

ICU plurals and select¶

{count, plural, =0{no items} one{1 item} other{{count} items}} and
{gender, select, male{he} female{she} other{they}} are translated at the message level — we translate the human-readable parts and keep the ICU skeleton valid. Plural categories are matched to each target language's rules (a language that needs few/many gets them; the required other case is always kept).

Named placeholders¶

{userName}, {count}, and other arguments stay exactly as your code expects — every placeholder in the source survives into the translation.

@-metadata and @@locale¶

Your template's @key metadata (descriptions, placeholders, types) drives gen-l10n, so we leave it untouched. Each translated file gets the correct @@locale, and Flutter falls back to the template for anything not yet translated.

Your file layout¶

lib/l10n/app_<locale>.arb is the default, but a custom directory works too — configure it once and the CLI remembers.

Translation that respects your existing setup — no surprises.

Structure-Preserving ARB Translation¶

We never modify:

• keys
• ICU plural/select structure
• named placeholders
• @-metadata or @@locale contracts
• the source template

We only translate the text values. Everything else stays exactly as gen-l10n expects.

Consistency Without Extra Work¶

Flutter apps grow fast. Translations need to keep pace without drifting.

GetTranslated.AI includes:

Translation Memory¶

Translate once, reuse everywhere. Your app stays consistent across screens and releases.

Protected Terms¶

Lock brand names, product names, or any terms that should never be translated.

AI Tone Tune¶

Set your preferred voice — formal, conversational, technical — and we maintain it across every language.

Version History¶

See what changed. Approve changes confidently. Track the source of every translation.

Built for Teams That Ship Fast¶

Flutter teams typically:

• ship to iOS, Android, web, and desktop from one codebase
• tweak copy frequently
• change onboarding flows often
• move quickly between features
• have low tolerance for tools that slow them down

GetTranslated.AI fits into that cadence:

• no per-seat fees
• no per-word billing
• no complex setup
• no sprawling dashboards
• a CLI that behaves like a dev tool, not a platform

Works With Your Project Setup¶

Compatible with:

• flutter_localizations + intl
• flutter gen-l10n and l10n.yaml
• custom arb-dir / template-arb-file locations
• melos and monorepos
• GitHub Actions and other CI/CD pipelines

If your Flutter app uses ARB files, this works.

Great for Experiments and Market Testing¶

Because translations take seconds, you can:

• test Spanish onboarding today
• try German UI copy tomorrow
• experiment with Japanese or French
• translate your store listings
• ship multilingual builds without added overhead

Fast iteration means real market insights, sooner.

Predictable Pricing for Small Teams¶

Flutter projects often start small and scale fast. Your localization costs should not spike along with them.

No:

• per-seat fees
• per-language fees
• per-word fees
• token charges
• overage surprises

Just clean, predictable pricing that scales with your usage.

A Good Fit For¶

• Flutter developers
• teams using flutter_localizations and intl
• startups and small companies
• indie cross-platform developers
• contractors and freelancers
• anyone shipping frequently
• anyone who needs ARB that passes gen-l10n on the first try

Works well for teams of any size — from solo developers to growing engineering orgs.

Why Teams Choose GetTranslated for Flutter Localization¶

Teams typically pick GetTranslated.AI when they need to:

• keep ARB structure, ICU syntax, and placeholders intact
• avoid broken builds from invalid or inconsistent .arb files
• reuse approved translations with Translation Memory
• ship multilingual releases on a fast product cadence

It is a practical fit for Flutter teams that want reliable localization without adding heavyweight process.

Ready to Get Started?¶

Choose the path that fits where you are right now:

• Start free now: Create your account and use the Personal plan free forever. Need more features? Every paid plan starts with a 14-day trial.
• Compare plans: See pricing to find the right fit for your app and team.
• Get the free launch checklist: Use the App Localization Launch Checklist and share it with your team before release.

Summary¶

Flutter apps can reach users worldwide — if you localize them reliably.

With clean ARB handling, full ICU and intl compatibility, AI-powered consistency, and developer-friendly tooling, GetTranslated.AI helps you:

• translate faster
• avoid broken gen-l10n builds
• maintain consistency
• keep your CI/CD green
• reach more users with less effort

Your Flutter app is ready for more languages. Let AI handle the repetitive translation work so you can keep building.

Solo developer? Check out our free plan with unlimited projects. Need a complete mobile developer guide? We've got that too.

Looking for More?

• Flutter teams often adopt safe AI translation to keep ARB files valid.
• Localization is easiest when it's part of the team's CI workflow.
• This is how small teams localize apps without breaking builds.
• This fits into a broader localization workflow for mobile app developers.