Real-time BSL and ASL Translation for Live Events, Streaming & Broadcast
Your real-time AI translator for BSL and ASL, turning text into sign language video using cutting-edge AI.
Deaf people in the UK use BSL as their primary language
Introducing SignStream Chat
Type a message. Watch it come to life.
Our new instant messaging sign language translation tool, allowing users to type a sentence and receive a sign language translation video instantly.
Instant British Sign Language and American Sign Language:
Live, Embedded, Scalable
The SignStream API delivers real-time British Sign Language (BSL) and American Sign Language (ASL) videos from short English phrases, powered by our Digital Signers. It’s lightweight, easy to integrate, and ready to make your live experiences more accessible.
Whether it’s a conference screen, a digital billboard, a live stream, or an internal system, SignStream brings spontaneous inclusivity to your platform.
What is SignStream?
SignStream is a fast, AI-powered sign language translation tool built for accessibility and innovation. It instantly converts text or speech into a sign language video.
Where It Works Best:
• Event screens and stage backdrops
• Digital signage in transport or retail
• Live broadcast overlays
• Internal tools and rapid prototypes
• Chatbots & accessibility widgets
There’s no human review or grammar editing; It's a real-time sign language translator designed to get you moving.
Now Launched: SignStream Chat
SignStream Chat is our new messaging translator, built for real-time text-to-sign language translation. Simply type your message into the chat and get a sign language video in return.
No scripts. No scheduling. No waiting.
Try SignStream Chat today and see how easy it is to bring sign language translation into your everyday content.
Choose between BSL and ASL, and personalise your translation with a range of Digital Signers. Whether you’re translating a single sentence or a full conversation, SignStream Chat makes translating into sign language effortless.
Every user gets 60 seconds of free sign language translation each week. This is more than enough time to translate multiple sentences and explore our range of Digital Signers.
Your translations don’t have to stay in the chat. Download them in multiple formats and share them across social media, presentations or anywhere your audience needs them.
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Watch SignStream In Action
How does it work?
01
Plug in the API
Adds our lightweight SignStream API to your system or platform.
02
Send the text
Push your text content to the API endpoint
03
Get back a video
The API responds with a high-quality video file of one of our Digital Signers signing your message.
04
Play it
The signed video slots right into existing screens, signage displays, broadcast platforms, and more.
FAQs
No, and that’s important. The API is entirely AI-generated, with no human grammar checking or quality assurance. The output may include grammatical inaccuracies from a BSL or ASL perspective, so it is not suitable for formal, legal, or official use. It’s best for casual messaging or testing new accessibility concepts.
For a more formal version of our AI sign language translation technology, why not take a look at SignStudio?The API is designed to be developer-friendly and lightweight. You can integrate it with just a few lines of code. We provide clear documentation, example requests, and support if needed.
Yes! We have launched SignStream Chat which offers you 60 seconds of free sign language translation so you can try our AI technology before you commit. Simply type in your message and receive a sign language video in BSL or ASL with your chosen Digital Signer. Try SignStream Chat now.
Currently, the SignStream API supports British Sign Language (BSL) and American Sign Language (ASL). We are currently working on German Sign Language (DGS), so stay tuned!
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