vootkit
Video & Streaming toolVideo or media file

Video Converter

Convert MOV, MKV, AVI, WebM and more to universal MP4.

100% FreeBrowser-basedNo watermark
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  1. 1UploadAdd your file from your device.
  2. 2Choose optionsPick the output settings you need.
  3. 3ProcessRun the tool in your browser.
Private by designProcessed on your device where possible.
Works on any deviceDesktop, tablet and mobile browsers.
No installationOpen the page and start working.
Always free coreUse the free plan for everyday tasks.

How to use Video Converter

Upload

Add your file from your device.

01
Choose options

Pick the output settings you need.

02
Process

Run the tool in your browser.

03
Download

Save the finished result.

04

Your files stay private

Your work is processed locally in your browser where possible and is never added to a Vootkit upload library.

Learn more about privacy

MOV from a phone, MKV from a download, AVI from something older than the phone — and a target that only accepts MP4. Conversion is usually about compatibility rather than quality.

What Video Converter does

Converts almost any video container to MP4 with H.264 video and AAC audio, at a frame rate you choose.

The output is constant frame rate, which matters more than it sounds. Screen recordings and phone captures are often variable frame rate, and that is the single most common reason audio drifts out of sync after importing into an editor.

Input, output and settings

AcceptsMP4, MOV, MKV, AVI, WebM and other common containers
OutputMP4 — H.264 video, AAC audio
Frame rate24 fps (film), 30 fps (default), 60 fps (smooth)
Frame timingConstant, so it stays in sync in every editor
CompatibilityH.264 MP4 plays on virtually every device and platform
Maximum input200 MB
Maximum length30 minutes

Detailed steps

  1. Drop the video in — the format does not need to be MP4.
  2. Pick a frame rate. Match the source where you can: 30 for most phone footage, 60 for gameplay, 24 if it came from film.
  3. Convert and download.

Worth knowing

If footage has ever drifted out of sync in an editor, variable frame rate was almost certainly the cause. Screen recorders and phones produce it routinely, editors assume constant, and the gap accumulates over minutes. Converting first fixes it before it becomes a problem you have to diagnose.

Frequently Asked Questions

Why convert to MP4 specifically?

Because H.264 in an MP4 container is the closest thing to universal — phones, browsers, editors, TVs and social platforms all accept it. MKV and AVI are perfectly good containers that a great deal of software still refuses.

Will converting reduce quality?

Slightly — it is a re-encode, so it is not lossless. At the default settings the loss is not visible in normal viewing, but convert from your original rather than from an already-converted copy.

Which frame rate should I choose?

Match the source. Converting 30 fps footage to 60 does not add smoothness, it duplicates frames and grows the file. Going from 60 to 30 halves the frames and is a reasonable size saving if you do not need the motion.

My file is over 200 MB.

Trim it first — that is lossless and usually what you wanted anyway. The limit exists because the whole file is held in memory in your browser, and above it the conversion fails partway through rather than completing badly.

Is Video Converter free?

Yes. The Vootkit free plan includes 5 tool runs a day. Upgrade to Vootkit Pro for unlimited daily use, an ad-free workspace and saved workflows.

Are my files uploaded?

No. Video Converter runs entirely in your browser — your file is processed on your own device and never sent to a server. There is nothing for us to store or delete.

Do I need to install anything?

No. Video Converter works in any modern browser on desktop, tablet or phone. Open the page and start.

How often can I use it? Is there a daily limit?

On the free plan you get 5 tool runs a day. When you reach the limit you'll see a prompt to upgrade, and it resets the next day. Vootkit Pro removes the cap entirely for unlimited daily use.

Your video is processed entirely in your browser. The video engine downloads once from a CDN the first time you run a tool, then works from cache. Large files are memory-bound, so keep clips reasonable.