About thirty seconds per sign

Record a sign

Every clip you contribute makes a sign easier to recognize and teaches the translator a new word.

You can contribute without an account. Signing in lets you track your contributions, keep a streak, appear on the leaderboard — and raises the hourly upload limit, which matters if you record in batches.

Camera is off

Video is processed entirely in your browser. Nothing is uploaded until you choose to submit.

Record a sign

Which sign are you recording?Sign language

Capture mode

I permit signAR to store this video, thumbnail, raw landmarks and processed landmarks privately for internal training, validation and review. Public display and transfer to other platforms are off unless I separately choose them. What this meansOptional: allow my video and thumbnail to appear publicly in signAR’s dictionary. Public media may be downloaded or copied by others.Optional: permit transfer of my video and landmarks to third-party research or training platforms. Leaving this unchecked keeps training within signAR’s controlled workflow.

Frame yourself from the waist up with both hands free.
Keep a plain background and even lighting on your hands.
Sign at a natural pace — start and end with hands at rest.

Signs that need clips most

Each sign trains best with about 20 clips from different people. Pick one of these to have the biggest impact.

Browse all signs →

Your video stays yours

Recording and landmark extraction run entirely in your browser. Nothing is sent anywhere until you press submit.

Reviewed before it counts

A human reviewer checks labels and recording quality before an approved sample can be used for training. Public display is a separate choice.

Private training by default

Your video and landmarks stay private for review, training and validation. Public display and third-party transfer require separate optional permission.