MOV to MP4 Converter
Convert .mov video files to universally compatible MP4. Runs entirely in your browser — nothing is uploaded.
MOV is Apple's video container; MP4 is the one everything accepts. This converter turns a .mov file into MP4 right in your browser using ffmpeg, so the video never uploads anywhere. Handy when an iPhone screen recording refuses to attach, upload, or open on the other end.
Click to select a .mov file
How to use it
- Drop your .mov file onto the tool or click to browse (up to 300MB).
- Wait while it converts. The progress bar is real; bigger files take longer.
- Download the MP4 when it finishes.
Why do MOV files cause so much trouble?
Because MOV is a QuickTime format, and outside Apple's ecosystem support is patchy. iPhones and Macs produce it by default for screen recordings and some camera settings, then Windows machines, editing tools, and upload forms shrug at it. MP4 with H.264 is the least-drama format on the internet: Instagram, TikTok, YouTube, Slack, and basically every browser play it without complaint.
For Instagram specifically, converting is mostly about reliability before editing or uploading elsewhere first. If you post from your phone, the app handles it. It's the desktop workflows, sending a reel draft to an editor, dropping a clip into a scheduler, where a MOV can jam things up.
Is it safe to convert video in the browser?
This tool runs ffmpeg compiled to WebAssembly, which means the conversion happens on your machine, in the browser tab. The file never uploads to a server. That's also why there's a 300MB cap: your device is doing the work, and browsers have memory limits. For a two-hour screen recording, use a desktop app; for the clips creators actually deal with, in-browser is faster than uploading somewhere and waiting.
What settings does the output use?
H.264 video with AAC audio in an MP4 container, which is the combination nearly everything plays. Resolution and frame rate stay as they were, so a 1080 x 1920 iPhone recording comes out at 1080 x 1920. No watermark, and no settings to fiddle with. That last part is deliberate: when the problem is a file that won't open, defaults beat options.
If you want real control (bitrate targets, trimming, batch queues), a desktop app like HandBrake is the better tool. This one exists for the far more common case where the file just needs to work, right now, without installing anything.
Frequently asked questions
Does converting MOV to MP4 lose quality?
Re-encoding always costs a little, but at these settings the difference is not something you'll spot on a phone screen. If the source is clean, the MP4 will be too.
Does it work on a phone?
It runs in mobile browsers, but conversion is memory-hungry and a big file can crash the tab. Under 100MB you're usually fine on a phone; above that, use a laptop.
Is there a file size limit?
300MB, because the conversion runs in your browser's memory rather than on a server. Most reels and screen recordings fit with room to spare.
Does my video get uploaded anywhere?
No. The whole conversion happens locally in your browser. Close the tab and the file is gone from everywhere except your own downloads folder.
Why does the first conversion take a moment to start?
The browser downloads the ffmpeg engine once before it can convert. After that first load, conversions start immediately.
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