Video Converter

Convert MP4, WebM, MOV, AVI, MKV, and GIF files directly in your browser without uploading or storing your video.

Client-Side

Convert videos between popular formats directly in your browser with no upload, account, or file storage. Use it for MOV to MP4, WebM to MP4, MP4 to WebM, AVI to MP4, MKV to MP4, MP4 to GIF, and other common video conversions.

How to use

  1. Choose a local MP4, WebM, MOV, AVI, MKV, or GIF file.
  2. Select the format you want to create, such as MP4, WebM, MOV, AVI, MKV, or GIF.
  3. Start the conversion and keep this browser tab open while the file is processed locally.
  4. Download the converted file when processing is complete.

Convert video files privately

Your video stays in this browser and is never uploaded.

Tool overview

Video Converter converts common video files directly in your browser. Convert MOV to MP4, WebM to MP4, MP4 to WebM, MP4 to MOV, AVI to MP4, MKV to MP4, MP4 to GIF, and other supported combinations without uploading your video to a server.

Supported video conversions

  • Convert MOV to MP4 and MP4 to MOV for Apple and general web playback.
  • Convert WebM to MP4 and MP4 to WebM for browser and streaming workflows.
  • Convert AVI or MKV to MP4 for wider device and platform compatibility.
  • Convert MP4, WebM, or other supported videos to an animated GIF.
  • Convert between MP4, WebM, MOV, AVI, MKV, and GIF formats from one tool.

Private browser-based processing

The selected file is read by your browser and processed locally with WebAssembly. It is not uploaded to AllToolsBox, saved to a server, or placed in online storage. The converted result remains in browser memory until you download it or leave the page.

Video conversion uses your device's CPU and memory. Smaller files generally convert faster, while very large or high-resolution videos may take longer or be limited by the browser or device.

Frequently asked questions

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