Video Format Converter
Convert between MP4, MOV, WebM, MKV, and AVI. Free, instant, private — nothing is uploaded.
Drop a video file here, or click to browse
Supports MOV, WebM, MKV, AVI, and MP4 — up to 2GB
Related tools
Everything you need to convert video
Every common video container
Convert between MP4, MOV, WebM, MKV, and AVI. One engine handles every common conversion pair.
Fast stream copy when possible
Container-compatible pairs like MOV to MP4 use a fast, lossless stream copy instead of a full re-encode whenever the source codec allows it.
100% private — no upload
Your files are never sent to a server, stored, or seen by anyone but you. Everything runs entirely on your device.
Real re-encoding when it's needed
Pairs that change codec — like WebM to MP4 or MP4 to WebM — get a full ffmpeg re-encode, tuned for quality that holds up at typical viewing sizes.
Works on any device
No download, no installation. PixelTools works in any modern browser on desktop, tablet, or phone.
No account, no watermark
Free to use with no sign-up, no file limits, and no watermark on the converted output.
Three steps to convert your video
- 1
Pick a conversion
Choose the video format pair you need — MOV to MP4, WebM to MP4, MP4 to MOV, and more.
- 2
Drop your file
Drag and drop your video onto the page, or click to browse. Nothing is uploaded — everything runs in your browser.
- 3
Download the result
A WebAssembly build of ffmpeg converts the file entirely on your device. Preview it, then download.
Built for anyone who works with video
Whether you're a video editor matching a delivery spec, a creator publishing to the web, or just fixing a file that won't play on your phone — PixelTools converts your video in seconds.
Video editors and producers
Convert footage into the container an NLE, client, or delivery spec actually requires, without re-uploading anywhere.
Publishing to the web
Turn a MOV or MKV export into MP4 or WebM for a website, ad platform, or LMS that only accepts specific containers.
Fixing playback on another device
A video that won't open on a phone, smart TV, or older app usually just needs its container converted — no re-editing required.
Archiving and format standardization
Normalize a mixed folder of MOV, MKV, AVI, and WebM clips into one consistent format for storage or handoff.
Frequently asked questions
Is PixelTools' video converter free?
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Yes, completely free with no limits. Convert as many files as you want, as often as you want. No subscription, no trial, no account required.
What video formats can I convert between?
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PixelTools converts between MP4, MOV, WebM, MKV, and AVI. Each conversion pair has its own dedicated page for the clearest results.
Are my files uploaded to a server?
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No. PixelTools converts video entirely in your browser using a WebAssembly build of ffmpeg. Your files never leave your device — there is no server upload, no cloud processing, and no data stored anywhere.
Will converting reduce video quality?
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It depends on the pair. Some conversions (like MOV to MP4) are often a fast, lossless stream copy that just repackages the existing video into a new container. Others (like WebM to MP4) require a real re-encode, which uses a high-quality setting so the difference is minimal for typical viewing.
How is this different from an online video converter that requires upload?
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Most online converters upload your file to a server for processing and impose file size or daily limits on free accounts. PixelTools converts everything locally in your browser with no upload, no limits, and no account required.
What is the maximum file size I can convert?
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PixelTools can handle files up to 2GB. Very large files may take a few moments to process since conversion runs on your device's CPU rather than a server.
Convert your video now
Free, instant, no account needed.
Start converting →