Universal Online Video Converter
Convert any video format to MP4, WebM, or MOV — directly in your browser with zero upload wait time.
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Your Privacy is Protected
- Your files are processed entirely in your browser
- No file upload — your video never leaves your device
- No account or registration required
- Files are not stored on any server
Universal Client-Side Video Transcoder
Convert video files between any popular format including MP4, MOV, WebM, MKV, and AVI without installing cumbersome video software or uploading multi-gigabyte files over slow internet.
FFmpeg WebAssembly decodes the source container and re-encodes video streams directly inside your browser tab.
How to Use This Tool
- 1
Choose your video file
Drag any video file into the converter.
- 2
Select output format
Choose MP4, WebM, or your target video format.
- 3
Convert in browser
FFmpeg.wasm transcodes the video streams locally.
- 4
Download video
Save your converted video directly to your storage.
Why MediaConvertKit is Faster & More Private
| Feature | MediaConvertKit | CloudConvert / Zamzar |
|---|---|---|
| File Processing | 100% In-Browser (Local) | Uploaded to Remote Server |
| Privacy & Confidentiality | Guaranteed Zero Exposure | Files Stored Temporarily |
| Upload & Download Wait | Zero (Direct RAM Access) | Minutes (Bandwidth Dependent) |
| Price & Daily Limits | 100% Free & Unlimited | Paid Credits / Queues |
Supported Formats
Input Formats
Output Format
Frequently Asked Questions
- MP4, WebM, MOV, MKV, AVI, FLV, WMV, 3GP, and MPEG are all supported for conversion.
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