Kinyarwanda-first sign-language translation

Make any text or audio
speak in sign language.

Type, upload, or speak — Signa AI signs it back to you in real time. Built for classrooms, broadcasters, creators, and anyone who wants their content accessible to deaf audiences.

No signup required for the free tier. Kinyarwanda, English and French.

New

The Signa browser extension is here

Translate any tab's speech into sign language, right on the page — YouTube, meetings, movies and more. Drag the avatar anywhere, or select text to sign it.

Add to your browser

Signing avatar

A signer your audience can read.

An upper-body presenter who signs every word with clear handshapes and natural movement. Every finger has its own outline, so hands stay readable even when fingers cross.

Clear handshapes, with every finger drawn on its own
Smooth, natural movement from one sign to the next
Choose skin, hair and clothes, or change outfits by time of day
The same avatar on the web, in the apps and in exported videos

“Mwiriwe”Live avatar

Four ways to feed the avatar

Pick the input that fits your moment. All four produce the same signed output.

Text

Paste a sentence and watch it sign back to you.

Audio file

MP3, WAV, M4A — transcribed and signed automatically.

Record

Tap the mic, speak, stop. We normalize, transcribe, sign.

Live

Speak continuously — every phrase signs the moment you pause.

Who it's for

From a single Kinyarwanda lesson to a national broadcast feed.

Schools & teachers

Caption Kinyarwanda lessons for deaf students in real time. Free tier covers a classroom's daily needs.

Creators & YouTubers

Embed a signing avatar next to your video. Pro tier removes the watermark and unlocks higher monthly quota.

Broadcasters

National TV / live event captioning. Enterprise tier comes with SLAs, custom integration, and on-prem options.

Signa AI API

Put sign language in your product.

The engine behind Signa AI, for businesses and broadcasters: text, recordings and live audio in, a signing avatar out, as signs your app plays, videos, or a signer on air.

Signs stream a word at a time, so they start in under a second
Live signing for studio feeds, conferences and lessons
Works with vMix, CasparCG, OBS and other studio systems

Read the API docs For broadcasters

POST /v1/sign

curl https://api.usesigna.org/v1/sign \
  -H "Authorization: Bearer $SIGNA_KEY" \
  -d '{"text": "Mwiriwe", "from": "rw", "to": "rsl"}'

→ the signs, a word at a time,
  ready to play, export or put on air

Pay by characters

One token per character. No surprises.

The free tier gets you started for nothing. Pro and Enterprise are character-bucketed monthly subscriptions paid via Xendly Pay (MTN MoMo or Airtel Money) in RWF.

See full pricing

Frequently asked

Does Signa support Kinyarwanda?

Yes — Kinyarwanda is our primary spoken language. We transcribe Kinyarwanda audio with production-quality speech recognition that handles real, everyday Kinyarwanda.

What about sign-language output for Kinyarwanda?

Yes — for Kinyarwanda, Signa outputs Rwandan Sign Language (RSL). Signa also supports American (ASL), British (BSL) and French (LSF) Sign Language: just choose your signed language and the avatar signs it.

Can I embed Signa in my YouTube videos?

The Pro tier unlocks an embeddable widget you can drop next to a video. Enterprise unlocks custom integration including broadcast-grade keyed video output.

Is the avatar accurate to how a deaf signer would actually sign?

The avatar renders research-backed sign-language pose data. Accuracy depends on the underlying model, which is improving rapidly.

What devices is Signa available on?

Web today (works in any modern browser; Chrome / Edge unlock the Live mode). Mobile, desktop, Chrome / Safari extensions are on the roadmap.