i18n Translation
Your strings in every language — ICU plurals, regions and namespaces handled.
Adaptive content platform
The adaptive content layer for AI-built products.
Your copy adapts to every language, region and screen — written by your AI, checked by your users, shipped live.
No commitment · Open exports, no lock-in · Works with your existing setup
One key
“Cart” button
-
Large screen
Add to cart
- fits mobile
Small screen
Add
-
In French
Ajouter au panier
- 1 in singular
Plural
3 items
Sonenta picks the right one, automatically.
Legacy tools translate. Sonenta adapts, writes, evaluates, makes it accessible and delivers.
One engine, five capabilities.
Translation is just the entry point. Sonenta adapts, writes, evaluates and ships your content — accessibility included.
i18n 
Accessibility · a11y Adaptation
The right content for every screen AND every user: accessible surfaces, AI alt text, WCAG report (EAA-ready) via the sonenta-a11y agent.
AI · MCP Automation
Your AI assistant creates, translates and publishes via the Sonenta MCP — right where you code.
Feedback · in-context Evaluation
Verified quality: in-context review plus feedback from your end users.
CDN · live Delivery
Published live to the global CDN — no rebuild, no app-store wait.
Fits your stack
- React
- Next.js Coming soon
- Vue Coming soon
- Svelte Coming soon
- Node.js Coming soon
The content
Your content adapts to every context.
The same sentence can run long on desktop and short on mobile, change from one region to the next, agree in singular or plural — right down to icons. Sonenta keeps every version in a single key and serves the right one automatically. No more text cut off on small screens, no more workarounds in code.
Without Sonenta
Add to ca…
Small screen
With Sonenta
Add
fits mobile
The AI assistant
Tell your AI assistant what you want. It does the i18n.
Connect the assistant your team already uses — like Claude or Cursor — in plain language. It creates, translates and organizes your copy, and you keep control and the final say.
You
Scan the code, find every untranslated string, and create the i18n keys in the Sonenta project “My project”.
scanning the repo — 47 hardcoded strings across 12 files
list_projects “My project” matched create_keys_bulk 47 keys created · common namespace You
Translate everything into Italian.
propose_translations_bulk 47/47 translated · 0 errors publish_cdn published to the CDN 47 strings, from code to CDN, in Italian — in two sentences.
You
Analyze the Sonenta quality report and fix the issues.
health_report 3 untranslated · 2 stale · 1 glossary violation propose_translations_bulk 3 missing strings translated update_keys_bulk 2 stale strings refreshed propose_translations_bulk 1 glossary violation fixed coverage_report 100% coverage · 0 issues A whole quality report, fixed on its own.
Illustration — real MCP tool names.
In context
Your copy, fixed where it appears.
Seeing copy where it actually lives beats guessing in a spreadsheet. Sonenta closes the loop in both directions.
Your team
Edit live, screen by screen.
Walk through your app — even on a phone — see each screen's text appear on your computer, edit it, and watch the change apply right away. No more hunting for the right row in a file.
Your users
Your users flag it on the spot.
Your end users rate and suggest better wording right inside the app, exactly where they see it. You moderate, then you publish.
The delivery
Publish once, live everywhere. No rebuild.
Change a piece of copy and it updates across all your apps in seconds — no new release to ship, no app-store round-trip. And because Sonenta adds to your existing setup instead of replacing it, your current text keeps working exactly as before.
You edit
Sonenta publishes
Live everywhere
Pricing
Honest, predictable, no per-word billing.
Free stays free. Paid plans start at $9/month. Every language, always included.
Free
To explore Sonenta on a side project.
5 GB bandwidth/mo
$0
Hobby
For a serious project that's growing.
50 GB bandwidth/mo
$9 / month
Pro
For startups juggling multiple apps.
250 GB bandwidth/mo
$29 / month
FAQ
What you've been asking.
Do we have to replace our current translation setup?
No. Sonenta adds to your existing setup instead of replacing it. Your current text keeps working exactly as before, and you adopt the new capabilities at your own pace.
Is this only for technical teams?
No. Your translators and product managers work in a visual interface, no code required. Your engineers do a one-time integration, then never have to touch it again.
How do we migrate from another tool?
Our import pulls your text, languages and folders straight from Lokalise with zero data loss — count a few minutes for an average project. Crowdin and Phrase import follow.
How are you billed?
By usage, in clear tiers — never per word. Free stays free; paid plans start at $9/month, with unlimited languages from Pro up. No language surcharge, no end-of-month surprise.
What happens if I exceed my plan?
Nothing breaking. Your apps keep serving their translations as usual. You get a notification, and only new changes pause until you adjust your plan. No automatic overage charge.
Are we locked into Sonenta?
No. Export your translations anytime, in every common file format. No proprietary format, no lock-in.
Down to the last word.
Ready to adapt your product to every user?
Start free in minutes. No credit card, no commitment, and your exports always open.