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
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
- Astro
- Next.js
- Vue
- Svelte
- Node.js Coming soon
Why not just use your agent + GitHub?
Your agent already translates. Sonenta makes it reliable and fast.
Yes, your AI assistant can translate your files and push them to GitHub. But on the second pass it loses the context, the terminology drifts, and it re-translates everything. Sonenta plugs your agent into a persistent content memory, over MCP, locally.
Agent + GitHub alone
- Context is lost between runs
- Terminology drifts, each run reinvents the terms
- Re-translates everything, every time (slow, token-heavy)
- No glossary, no shared memory
- To ship a fix: commit → build → redeploy
With Sonenta
- Persistent glossary, context & descriptions, zero drift
- Only new or changed keys get translated
- Your agent drives it all over MCP, from the editor
- The agent stays LOCAL, your code, your machine
- Live delivery to the CDN, no rebuild
How it works
Your agent drives Sonenta over MCP, locally.
Sonenta doesn’t replace your assistant, it plugs into it. Add the Sonenta MCP to Claude Code, Cursor or Claude Desktop and your agent gets the tools to create keys, translate with context, and publish, without leaving the editor. Your code and your agent stay on your machine; Sonenta is the content layer they call.
Plugs in, doesn’t take over
It’s tools for your agent, not a black-box platform that grabs the wheel.
Local-first
The agent runs where you code; routine work costs zero AI credits.
Context-aware
Every translation is grounded in your glossary, descriptions and project context.
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.
Reliability
Reliability comes from context.
Glossary terms, key descriptions and project context live in Sonenta and persist across every run. So terminology stays consistent across languages and over time, no drift, no re-translating what hasn’t changed. Less time, fewer corrections, output you can trust.
Glossary
Enforced terms, never reinvented.
Context
Descriptions + project context per key.
Incremental
Only new content is translated.
Consistency
Same terms, every language, over time.
Delivery
Published live, no rebuild.
When a translation is approved, it goes straight to the global CDN. Your app picks it up in seconds, no new release, no redeploy, no app-store wait.
Accessibility · secondary, but it matters
Accessibility, generated along the way.
The European Accessibility Act applies since June 2025. As your agent works, it can generate the accessible surfaces, alt text, ARIA labels, plain-language, in every language, grounded in the same context. Compliance as a by-product, not a separate audit.
Accessibility, in detail →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.
Pricing
Honest, predictable, no per-word billing.
Free stays free. Paid plans start at $9/month. Every language, always included.
Free
$0
To explore Sonenta on a side project.
500
Included keys
5 GB
CDN bandwidth
Hobby
$9 / month
For a serious project that's growing.
5 000
Included keys
50 GB
CDN bandwidth
Pro
$29 / month
For startups juggling multiple apps.
50 000
Included keys
250 GB
CDN bandwidth
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.