convertwebvideo.com

00/In-browser video converter

Convert any video to the right web format.

Drop in a video and get back a web-ready file — the correct codec and settings worked out for you, at a fraction of the size and the same quality. No specs to look up, nothing to install. It all runs in your browser, so your video never leaves your computer.

Drop a video here, or click to choose

MP4 · MOV · AVI · MKV · WebM · up to 1 GB

01/What you get

Completely private

Nothing uploads. The conversion runs entirely in your browser.

Up to 90% smaller

A 50 MB clip can come out around 5–10 MB — same quality, far less weight.

Plays everywhere

The right codec and container for every modern browser and device.

02/Why convert

Why convert your video?

Modern devices record in formats like HEVC and 4K that many websites, email clients and apps either reject outright or play poorly. A converted video plays everywhere, without surprises.

Web-ready video also loads faster for your visitors — better performance, less bandwidth cost, and a smoother experience on slower connections.

Works for email attachments, Slack, Notion, your own site, and every other place a file has ever come back with “it won't play.”

03/How it works

How it works

1

Drop your video

MP4, MOV, AVI, MKV, WebM, HEVC — almost anything.

2

Pick size and quality

Pre-filled with sensible defaults. Tweak if you want to.

3

Download the result

Preview it first, then download the web-ready file.

04/Privacy by design

Your video stays on your device.

This tool uses WebAssembly to run the conversion right in your browser. The video bytes are never uploaded, never stored, never seen by us. Close the tab and it's gone.