Video Converter
Convert video files between MP4, WebM, AVI, MOV, and MKV formats directly in your browser.
Drop your video here or browse files
MP4, WebM, AVI, MOV, MKV, FLV, WMV, 3GP supported
Source video preview:
ℹ️ Note: Browser-based video conversion works natively for WebM output using the MediaRecorder API. MP4 and other formats are re-containerized when supported by your browser. For advanced codec conversion (H.265, AV1, VP9), server-side processing gives better results.
How to Convert Video
- Choose your input and output formats from the dropdown menus.
- Upload your video file by dropping it or clicking Browse.
- Adjust resolution and quality settings as needed.
- Click Convert Video, preview the result, and download.
Video Format Guide
| Format | Best For | Compatibility |
|---|---|---|
| MP4 (H.264) | Universal sharing | Excellent |
| WebM (VP9) | Web embedding | Browsers |
| MOV | Apple ecosystem | macOS/iOS |
| AVI | Windows legacy | Windows |
| MKV | High-quality storage | Desktop players |
| GIF | Short clips, memes | Universal |
Frequently Asked Questions
What is the best format for social media?
MP4 with H.264 encoding is universally accepted by Instagram, TikTok, YouTube, Twitter/X, and Facebook. It combines excellent compatibility with a reasonable file size.
What's the difference between MP4 and MOV?
Both can contain H.264 video but differ in container format. MOV is Apple's format and works natively on macOS and iOS. MP4 is a universal standard that plays everywhere. For cross-platform sharing, MP4 is safer.
Why is WebM good for the web?
WebM uses open codecs (VP8/VP9 for video, Vorbis/Opus for audio) that are royalty-free and natively supported in all modern browsers — making it ideal for `<video>` tags on websites.
Can I reduce video file size here?
Yes. Selecting a lower resolution (720p instead of 1080p) and the "Low" quality setting significantly reduces file size, at the cost of some visual fidelity.
Who Uses a Video Converter?
Content Creators
Convert iPhone MOV footage to MP4 for upload to YouTube or TikTok. Re-encode clips for reels without going through a full editing app.
Businesses
Convert presentation recordings to web-friendly WebM for embedding in websites, or MP4 for email attachments and Loom-style sharing.
Educators
Convert lecture recordings to universally compatible MP4 for LMS platforms like Canvas or Moodle that have strict format requirements.
Developers
Convert sample videos to WebM for HTML5 video elements, or generate GIFs from short clips for README files and documentation.
Frequently Asked Questions
Which video format should I choose?
MP4 (H.264) is the most widely compatible format — it works on every device, browser, and platform. WebM is an open format optimised for web use with slightly better compression.
Why is browser-based video conversion limited?
Video encoding is computationally intensive. Browser-based conversion uses WebAssembly (FFmpeg.wasm) which is slower than native FFmpeg. For large files or batch conversion, a desktop tool like HandBrake is faster.
Is there a file size limit?
Large video files (over 500MB) may exceed browser memory limits or take a very long time. For large files, HandBrake or VLC (both free) are better tools.
Are my video files uploaded to a server?
No. All conversion uses FFmpeg compiled to WebAssembly running entirely in your browser. Your files never leave your device.
Why does conversion take a while?
Video encoding requires significant computation. Browser-based processing is slower than native software. Progress is shown during conversion.