Video Converter
Convert videos locally with codec and container options. Optional resize, rotate, and mirror.
Convert Videos Between MP4, WebM, MOV, and MKV — In Your Browser
Need to convert a video from WebM to MP4? MOV to WebM? Shortify's browser-based converter handles format, codec, resize, rotate, and mirror — all without uploading your file to any server.
Social platforms are picky about formats. TikTok and YouTube prefer MP4 with H.264. Some editing tools need MOV or MKV. This tool lets you convert between all major containers and codecs in seconds, right in your browser.
How It Works
- Drop in a video. Any MP4, WebM, MOV, or MKV file.
- Choose output settings. Select the target format (container), codec, and optional resize/rotate/mirror transforms.
- Convert and download. Processing runs in your browser — no upload, no waiting for server queues.
Supported Formats and Codecs
- MP4 — H.264 (universal compatibility) or H.265 (smaller files, newer devices)
- WebM — VP8 or VP9 (web-optimized, open format)
- MOV — Apple-friendly container for Final Cut Pro and QuickTime
- MKV — Flexible container for archiving and advanced use cases
Frequently Asked Questions
No. All conversion happens locally in your browser using WebCodecs. Your video never leaves your device.
MP4 with H.264 encoding is universally recommended for TikTok, YouTube, Instagram, and most social platforms.
Yes. The converter includes optional resize, rotate, and mirror controls so you can adjust dimensions while converting.
WebM is common for screen recordings and web captures. Most social platforms and video editors prefer MP4 with H.264, so converting ensures compatibility.
There is no hard limit, but very large files may be slow depending on your device hardware since processing happens in the browser.
Chrome, Edge, and Opera are fully supported. Safari and Firefox have limited WebCodecs support and may not work with all codec options.
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