AstrologerAI: an AI astrology app localized into 52 languages
How the AstrologerAI app translated its entire experience into 52 languages with LocalePack — 6.3M tokens for $58.73 — to reach a worldwide audience in their own language.
Purpose-built for Next.js i18n
AI localization for Next.js apps
Upload your JSON translation file, pick target languages, pay once, and download ready-to-use locale files.
ICU & placeholder-safe
next-intl / react-i18next
Transparent pricing
How it works
Three simple steps to localize your Next.js app. Translations run after payment—we queue jobs and generate the files in minutes.
01
Upload
Drop your JSON translation file (next-intl, react-i18next, or simple JSON). We detect the format automatically.
02
Select languages & see price
Choose from 52 languages. See transparent pricing based on your file size and complexity before you pay.
03
Download translations
Pay once via Stripe. We generate locale files preserving your nested structure, ICU messages, and placeholders.
Live pricing demo
Transparent pricing estimator
See exactly what you'll pay before uploading. Final quote is computed after upload based on file complexity and languages selected.
1. Upload file
Drop JSON file here
or click to browse
next-intl, react-i18next, or flat JSON. Max 500KB.
2. Select languages
|
3 of 52 languages selected
3. Your estimate
Languages selected3
Final price calculated after file upload on checkout page
One-time payment • No subscription
Built for Next.js developers
Purpose-built for Next.js i18n translation files. Not a generic translation tool.
Multi-format support
Supports next-intl, react-i18next, i18next, and simple flat JSON. We auto-detect your format on upload.
ICU message safety
Preserves ICU plural/select syntax like {count, plural, one {# item} other {# items}} across all translations.
Nested JSON aware
Handles deeply nested JSON structures. Your namespace hierarchy is preserved exactly in the output files.
Ready-to-use output
Download translated JSON files per locale. Drop them into your messages/ or locales/ folder and ship.
Parallel processing
All languages are translated simultaneously. Most jobs complete in under 5 minutes.
One-time payment
No subscriptions, no monthly fees. Pay once per job, download forever.
How Next.js i18n works
Next.js apps using next-intl or react-i18next store translations in JSON files per locale. LocalePack generates all of them from your source file.
messages/ folder structure
messages/ ├── en.json ← source locale ├── de.json ├── fr.json ├── ja.json └── ... (52 locales)
next-intl usage
// messages/en.json
{
"HomePage": {
"title": "Welcome to our platform",
"description": "Build amazing apps",
"items": "{count, plural,
=0 {No items}
one {# item}
other {# items}}"
}
}
// In your component
const t = useTranslations('HomePage');
<h1>{t('title')}</h1>
<p>{t('items', { count: 5 })}</p>Runtime API
useTranslations()
Config file
i18n.ts
Placeholders
{variable}
Plurals
ICU format
Why not just use generic tools?
General-purpose translation tools don't understand Next.js i18n format, ICU messages, or nested JSON structures.
LocalePack | Manual translation | Generic TMS | |
|---|---|---|---|
| Setup time | 2 minutes | Hours per language | 30+ minutes |
| Cost transparency | |||
| Nested JSON support | |||
| ICU message safety | |||
| Speed (52 languages) | < 5 min | Weeks | Hours |
| Best for | Next.js apps | Small projects | Enterprise CMS |
Success Cases
Real projects that used LocalePack to reach a global audience in up to 52 languages.
DevToys.pro: 400% international traffic growth across 52 languages
How the DevToys.pro web app translated its entire UI into 52 languages with LocalePack — 5.8M tokens for $58.44 — and quadrupled its international organic traffic.
DevToys New Tab: a Chrome extension localized UI + store listing in 52 languages
How the DevToys New Tab Chrome extension localized both its in-extension UI and its Chrome Web Store listing into 52 languages to reach a global audience.
LocalePack localized itself into 52 languages — with LocalePack
We used our own tool to translate the entire LocalePack site into 52 languages — 2.9M tokens for $27.37 — so developers worldwide find us in their own language.
Trusted by Next.js developers
“Saved me days of work. Uploaded my next-intl JSON, got back perfectly structured translations with ICU plurals intact.”
Alex R.
Full-stack developer, SaaS app
“Finally a tool that understands nested JSON and doesn't break my ICU messages. The output drops right into my messages/ folder.”
Lisa M.
Next.js developer
“Transparent pricing was the selling point. I knew exactly what I'd pay before uploading anything.”
Dev J.
Open source contributor
52
Locales supported
100%
ICU-safe output
JSON
Ready to ship
Ready to ship your Next.js app globally?
Pay once • Download locale files • Ship globally
Try LocalePack