Universal Video Converter - Convert to MP4, WebM, GIF (Unlimited)

A universal video converter running entirely inside your browser. Convert any video to MP4, WebM, or high-quality animated GIFs. 100% private, with zero file size limits.

Click for theater mode

Drop video files here

Supports MKV, AVI, FLV, WMV, MOV, MP4, etc. 100% local processing, no size limits.

Add video files to begin.

Processing runs securely in your local browser sandbox. No server uploads.

Conversion Queue

0 files total

Your files will appear here.

How to Use

  1. Drag and drop your video files into the upload area or click "Select Files". Batch importing is fully supported.
  2. Select your desired output format from the dropdown: MP4 (Universal), WebM (Web-optimized), or GIF (Animated).
  3. Click "Convert Video". Your browser will run at full speed to re-encode the file locally.
  4. Once conversion is complete, click "Download" next to the video in the queue to save it.

Core Features

  • Infinite File Size (No Limits): Traditional online video converters often force a strict 100MB size limit. Because our tool relies completely on your device's own computing power with zero server cost, we enforce absolutely NO artificial file size limits!
  • One-Click GIF Extraction: Beyond standard video conversion, you can easily turn video clips into optimized animated GIFs, perfect for sharing on social media, Reddit, or Discord.
  • 100% Absolute Privacy: Your high-definition personal recordings, unreleased company promos, or family videos never leave your device. All frame-by-frame transcoding is computed securely inside your browser's high-performance sandbox.
  • Universal Input Support: Whether it's a massive MKV, an ancient AVI, or an Apple MOV file, the tool easily recognizes and transcodes them into universally web-friendly MP4 or WebM formats.

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Calculation Logic

In the past, converting a massive multi-gigabyte video meant painfully uploading it to a website, waiting in a long cloud queue, and then downloading it backโ€”a slow process plagued by enormous privacy risks.

We've rewritten the rules using advanced WebAssembly technology. This universal video converter embeds a lightweight FFmpeg core engine, effectively turning your web browser into a powerful video processing workstation. Video data flows strictly within your local memory, and download links are generated instantly upon completion without any network communication. This is the future of video utilities.

FAQ

Can I convert my video into an animated GIF?

Yes! This isn't just a video converter; it's a powerful GIF generator. Simply select GIF as the target format, and the engine will automatically adjust the framerate and optimize the color palette to output a smooth, high-quality animation.

Why does my browser lag during large file conversions?

Because the conversion relies entirely on your local device's CPU and memory. Transcoding extremely high-resolution or very long videos requires immense computational resources. This is completely normal behaviorโ€”just be patient and wait for the progress bar to finish.

Is there really no 100MB upload limit?

There really isn't, because there is no "upload" happening at all! Traditional websites impose limits to save on expensive server bandwidth. Our tool runs locally, meaning your device's performance is the only limit. As long as you have enough RAM, you can convert massive files.

Where are the converted videos stored?

They are stored temporarily in your browser's memory (as Blobs). As soon as you click "Download" to save them to your hard drive, or if you simply refresh the page, these temporary files are securely and permanently destroyed. No one else ever has access to your data.