Early access for developers

Translate & validate your i18n JSON in seconds.

Poliglotify uses AI to turn raw i18n JSON files into clean, localized versions for multiple languages — without breaking keys, formats, or your deployment pipeline.

Built for SaaS teams, indie hackers, and agencies who are tired of copy-pasting strings into random tools.

Get early access

app.en.json → app.fr.json

{
  "auth": {
    "title": "Sign in",
    "subtitle": "Welcome back",
    "email": "Email address",
    "password": "Password",
    "cta": "Continue"
  },
  "errors": {
    "required": "This field is required.",
    "invalidEmail": "Please enter a valid email."
  }
}

{
  "auth": {
    "title": "Connexion",
    "subtitle": "Ravi de vous revoir",
    "email": "Adresse e-mail",
    "password": "Mot de passe",
    "cta": "Continuer"
  },
  "errors": {
    "required": "Ce champ est obligatoire.",
    "invalidEmail": "Veuillez entrer une adresse e-mail valide."
  }
}

Keys preserved · Placeholders kept · Formatting intact

Try Poliglotify with your JSON

Paste a sample i18n JSON file, choose a target locale and tell us where to send the translated JSON. Source text is assumed to be English (en).

Source JSON

Target locale

Your email

We recommend starting with a smaller file while we’re in early access.

From JSON file to localized bundle in 3 steps

No custom scripts, no spreadsheets, no broken builds.

Step 1

Upload or paste your i18n JSON

Bring your existing translation files as they are. We keep the structure exactly as you designed it.

Step 2

Choose target languages

Generate new locale files (e.g. fr, de, es) with consistent tone and terminology.

Step 3

Receive your translated JSON by email

We validate keys, placeholders, and JSON syntax, then email you a ready-to-use localized JSON file you can drop straight into your repo.

Built for developer workflows

Poliglotify focuses on one thing: making i18n JSON translation painless and safe.

Structure-safe translations

We never touch your keys. Only the values change, so refactors and deployments stay predictable.

Placeholder & interpolation aware

Keep variables like {name} or %s intact across languages, without manual fixes.

Consistent tone across locales

Use one source of truth and get a coherent voice in all languages — no mix of formal/informal or random wording.

Powered by modern language models

Behind the scenes, we use AI to generate natural translations — you get fast results without wrestling with prompts.

Get early access to Poliglotify

We’re onboarding a small group of teams to help shape the roadmap.

• Priority access to new features
• No credit card required
• Perfect for apps already using i18n JSON

We’ll only email you about Poliglotify. No spam, ever.

Frequently asked questions

Is Poliglotify free right now?

During early access, we’re experimenting with generous free tiers to learn from real usage. Pricing may evolve, but we’ll always let you know before changing anything.

Which languages are supported?

Major languages like French, German, Spanish, Italian, Portuguese and more are supported today. We’re adding others based on early user demand.

Can translations contain mistakes?

Yes — translations are generated by AI, and while usually high-quality, they can sometimes include inaccuracies, tone inconsistencies, or context misunderstandings. Always review the output before shipping it to production.

Does it work with my framework?

If your app uses JSON for localization (Next.js, React, Vue, Node backends, etc.), Poliglotify can help. We don’t lock you into any specific library.