Will I lose video quality when converting MOV to MP4?

For most MOV files the converter uses stream copy, which remuxes the video without re-encoding — no quality loss at all. If the source codec isn't MP4-compatible it falls back to H.264 + AAC re-encoding, which is visually lossless at normal settings.

Free browser tool

Free MOV to MP4 Converter

Convert MOV, MKV, AVI, or WebM to MP4 in seconds. Drop your file and download — no upload, no sign-up, no watermark. Everything runs privately in your browser.

No upload
No sign-up
No watermark
No quality loss

Drop a video here or click to browse

MOV, MKV, AVI, WebM → MP4 — converted locally in your browser

Your video never leaves your device — 100% private, no cloud upload

How to convert MOV to MP4 online

Drop your video

Select or drag in any MOV, MKV, AVI, or WebM file. Processing is local — nothing is sent to a server.

Auto-convert

FFmpeg remuxes or re-encodes the file instantly. The progress bar shows what's happening in real time.

Download MP4

Click Download when the conversion is done. The file is ready for any player, editor, or upload.

Why convert MOV to MP4?

Universal compatibility

MP4 plays on every device, browser, and platform — Windows, Android, smart TVs, and social media all accept it without plugins.

Smaller file size

MOV files from iPhones and QuickTime can be large. Converting to MP4 often shrinks the file without visible quality loss.

Upload to any platform

YouTube, Vimeo, Twitter/X, LinkedIn, and most CMSs only accept MP4. Converting beforehand avoids upload errors or automatic re-encoding.

Edit in any software

MOV can cause compatibility issues in Windows-based editors. MP4 is accepted everywhere — Premiere, DaVinci Resolve, Final Cut, and more.

Frequently Asked Questions

How do I convert MOV to MP4 online for free?

Drop your MOV file into the converter or click to browse. The tool converts it locally in your browser — no upload, no sign-up, no watermark. Click Download when done.

Will I lose video quality?

For most MOV files the converter remuxes without re-encoding — zero quality loss. If the codec isn't MP4-compatible it falls back to H.264 + AAC, which is visually lossless.

Is my video uploaded to a server?

No. Everything runs locally in your browser using FFmpeg compiled to WebAssembly. Your video never leaves your device.

What other formats can I convert to MP4?

Besides MOV, the tool accepts MKV, AVI, WebM, and most other common video formats. Output is always MP4.

Why can't QuickTime Player export MP4?

QuickTime's 'Export As' menu saves .mov files regardless of what it says. For a real MP4 you need a converter like this one, iMovie, or HandBrake.