Convert MOV to MP4
iPhones record MOV files, often with HEVC video inside, and half the internet refuses to play them: Windows machines without codec packs, older players, many upload forms, most embeds.
SqueezeVid reads the MOV locally in your browser, decodes it with your machine’s hardware, and writes a standard MP4 with H.264 video and AAC audio, the one combination that plays everywhere. Pick a size target while you’re at it, or a generous one just to convert.
Drop a video here
or browse files
MP4 · MOV · WebM · MKV. Any length, any size. Nothing is uploaded.
Why MOV files cause trouble
MOV is Apple’s QuickTime container, and since 2017 iPhones default to HEVC (H.265) compression inside it. HEVC is efficient but patent-encumbered, so plenty of software either can’t decode it or won’t. MP4 with H.264 is over twenty years old, royalty-settled, and supported by effectively every device and website on earth.
Your browser’s hardware decoder handles the HEVC side (every modern computer and phone decodes HEVC in silicon), and the hardware encoder writes H.264 back out, so conversion runs at several times real-time, locally.
Converting without shrinking
If you only need compatibility, not compression, pick a target comfortably above your file’s current size; the planner will spend the full budget and preserve quality. If the file also needs to fit a limit, you get conversion and compression in the same pass.
Frequently asked
- Does converting MOV to MP4 lose quality?
- Conversion here re-encodes the video, so there is a generational loss, but at a healthy bitrate it is not visible. Give the tool a generous size target and the output will be visually indistinguishable from the source while playing on everything.
- Is my MOV uploaded to a conversion server?
- No. The file is read, decoded, re-encoded and packaged entirely inside your browser using WebCodecs. It never leaves your device, which also makes this faster than any upload-convert-download cycle.
- My MOV is HEVC/H.265. Will it work?
- Yes on virtually all modern machines: browsers delegate HEVC decoding to your hardware, and Macs, iPhones and every recent Windows laptop decode it in silicon. If a particular machine truly cannot decode the codec, SqueezeVid says so plainly instead of failing silently.