Compress video for Signal

Prepare a smaller video attachment for Signal messages.

Video compressor

Choose your target
Checking your clips…

Drop a video here

One clip. A clear maximum.

How to make your video smaller

  1. Choose a preset

    Start with a target above, or open Full controls for a custom maximum and video settings.

  2. Select your video

    Choose a local file. Review the selected maximum, any resolution cap and the advice before compressing.

  3. Download and review

    Save the result and check its quality. Upload or attach it in your destination app yourself.

Use the attachment picker

Signal supports attaching a video or file to a message. Its public sending guide does not establish one universal video byte ceiling, so these are suggested sizes. If your client rejects a file, use its reported limit in Full controls.

Compression happens outside Signal

A video that needs encoding is uploaded to SizeVideo’s processing service. That step is outside Signal’s end-to-end encrypted conversation. Review SizeVideo’s privacy policy before choosing sensitive footage; download the result and attach it yourself.

Questions about Signal

Is SizeVideo part of Signal’s encrypted chat?

No. It is a separate service. Compression requires an upload unless the original already fits and needs no changes.

Will a smaller file fix a connection problem?

It can reduce the bytes to transfer, but a disconnected or restricted Signal client still needs its connection restored.

Can I change a preset?

Yes. Full controls opens the normal size ruler, custom maximum, resolution, frame rate and audio settings. Switching controls keeps the selected file. Presets set a maximum; the actual result can be smaller.

Will every video reach this size?

No. Very small targets can be unsuitable or fail for a long or detailed clip. Read the advice, try lower resolution or choose a larger maximum. Compression does not trim video or bypass a destination’s content and account rules.