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VuConvert

Video tools

Trim, convert and compress video with WebAssembly.

13 tools · 13 run in your browser

VuConvert's video tools convert, compress, trim and re-encode video right in your browser using WebAssembly FFmpeg — your footage is never uploaded to a server. Change format, shrink a file for email, cut a clip, adjust resolution or frame rate, or turn a video into a GIF, all locally on your device. A one-time engine download is cached after first use.

Change FPS

Adjust a video's frame rate.

Change Resolution

Scale video to 1080p, 720p and more.

Change Video Volume

Turn a video's audio up or down.

Compress Video

Reduce video file size with WebAssembly.

Convert to AVI

Convert video to AVI.

Convert to MKV

Convert video to MKV.

Convert to MOV

Convert video to Apple MOV.

Convert to MP4

Convert any clip to universal MP4.

Extract Audio

Pull the audio track out of a video.

GIF from Video

Turn a clip into a shareable GIF.

Mute Video

Strip the audio track from a video.

Replace Video Audio

Swap a video's audio track for a new one.

Trim Video

Cut a clip to the part you need.

Frequently asked questions

Is my video uploaded?
No — everything runs in your browser with WebAssembly FFmpeg, so the file never leaves your device.
Why is the first conversion slow to start?
The video engine (~31 MB) downloads once on first use and is cached for next time, so later conversions start instantly.
Which formats are supported?
Common formats like MP4, MOV, MKV and WebM, plus audio extraction to MP3/WAV.
Is it free?
Yes — free, no account, no watermark on the output.