Video tools

Add subtitles to a video permanently. Load an SRT or VTT, or let Whisper write one from the speech, then style the captions on a live preview and export an MP4 with the words on every frame.

A video subtitle generator built on Whisper. Feed it an MP4 and get SRT, WebVTT or a plain transcript, with cues capped at two lines of 42 characters.

Extract audio from a video and keep the soundtrack on its own. AAC inside an MP4 is copied across without re-encoding, so the M4A you get back holds the original track untouched.

Merge videos into one MP4 or WebM. Seven transitions plus a plain cut sit at every join, and each clip can be trimmed before it renders.

Mute a video by dropping its audio tracks while the picture is copied across without re-encoding, so a two-minute clip finishes in seconds and the frames come back identical.

Trim a video down to the part worth keeping, or lift several pieces out of one recording and join them. Pull only the end handle in and nothing goes through the encoder.

Compress a video to a size you type in MB and see the projected file before encoding, with presets for WhatsApp at 64, email at 25 and Discord at 20.

Convert video between MP4, MOV, MKV and WebM in your browser. Each target says first whether the clip is repackaged untouched or re-encoded.

Convert a video to a looping GIF at 10 to 24 fps and the width you choose, with a preview that plays before you save.