Contribute sign videos
Help build Mathla's sign language dictionary and training data by recording signs with your device camera. Every submission is reviewed before use.
How it works
- Sign in and accept the contributor consent
- Choose a sign from the dictionary list
- Record live with your camera — gallery uploads are not accepted
- Review your recording, then submit for Mathla review
Live recording only
For quality and authenticity, you must record each sign in real time using your browser camera. Pre-recorded files cannot be uploaded.