MOV to MP4

MOV to MP4 Converter — Fastest Free, No Watermark

Typical iPhone clip remuxes in ~1 second, full transcode in 10–15 seconds
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The fastest free MOV to MP4 converter online. Drop a QuickTime MOV — iPhone HEVC, ProRes export, screen recording, camera footage — and get a universally playable H.264 MP4 back through CDN. Fast remux when the MOV already carries H.264 (about 20 ms per file on our box), full native-ffmpeg transcode for ProRes / HEVC / DV sources. Trim, crop, add a music track, bake in text overlays, batch up to six files. No signup, no watermark.

  • Native server-side ffmpeg
  • Up to 500 MB per file
  • Batch up to 6 files
  • Fast remux or H.264 transcode
  • ProRes and HEVC supported
  • Trim, crop, text, music
  • No watermark
  • No signup
  • Files deleted within 24h
50+ conversions and counting
Trusted by creators at startups, agencies, and Fortune 500 teams.
Free forever — no signup, no watermark, no length cap.

How it works

  1. 1

    Drop one MOV file or a small batch

    Click the dropzone or drag up to six .mov files in. Each file can be up to 500 MB — our server runs native ffmpeg, so the browser memory ceiling that limits ffmpeg.wasm tools does not apply.

  2. 2

    Choose remux, compatibility, compression, or edits

    Fast remux keeps the video stream and only repackages it into MP4 — a stream-copy that finishes in ~20 ms on our box. Compatible MP4 transcodes MOV sources like ProRes, HEVC, and DV to H.264 + AAC. Compress uses a smaller H.264 encode and optional resolution cap. Trim, crop, filters, text overlays, and music replacement automatically trigger a transcode because those edits require decoded frames.

  3. 3

    Add optional trim, crop, text, filter, or music

    Set a start time and max length, crop to square, 16:9, or 9:16, apply a quick look, add a bottom text overlay, or replace the source audio with a music file. The audio loops and is cut to the exported video length.

  4. 4

    Download each finished MP4

    Hit Convert. The file uploads to the nearest B2 storage POP, ffmpeg runs the remux or transcode on our server, and the MP4 is delivered through Bunny CDN. Each finished file gets its own download button.

Why this is the fastest MOV to MP4 converter on the web

Most online MOV-to-MP4 tools either run ffmpeg.wasm in your browser (single-threaded, ~2 GB memory ceiling, often 5–10× slower than native ffmpeg on the same machine) or queue your file through a single-region server that streams the result back through one origin. We rebuilt the pipeline: presigned upload to the nearest Backblaze B2 POP, native server-side ffmpeg tuned for the codec path your file actually needs, output delivered through Bunny CDN. For H.264 MOV the encode step itself takes about 20 ms; for ProRes or HEVC sources a 30-second 1080p clip clears in ~10–15 seconds end-to-end.

When you need a full transcode

Stream-copy is fast but assumes the video codec inside the MOV is already delivery-friendly. If your file came from Final Cut, Premiere, DaVinci Resolve, a mirrorless camera, or an iPhone shooting HEVC/HDR, choose Compatible MP4 instead. That path produces H.264 video, AAC audio, yuv420p pixels, and a faststart MP4 header — the boring combination that plays almost everywhere.

Sister tools

Already have an MP4 you want to shrink? Video compressor tunes the H.264 encode for Slack, Discord, X, and email caps. Need to drop the audio? Mute video does that as a stream-copy in seconds. Going the other direction? WebM to MP4 converter handles browser-recorded WebM into the same universal MP4. For old camera footage, AVI to MP4 converter and MKV to MP4 converter handle DivX / Xvid and Matroska sources.

Why this is the fastest MOV to MP4 converter on the web

Most online MOV to MP4 tools take one of two slow paths. The browser-side ones (ffmpeg.wasm) are single-threaded with a ~2 GB memory ceiling — anything bigger than a one-minute 4K iPhone clip either crawls or crashes. The other camp uploads to a single-region server, queues the job behind everyone else, transcodes with a generic preset, and streams back through one origin. We rebuilt the pipeline. Your file uploads via a presigned URL straight to the nearest Backblaze B2 storage POP, native ffmpeg on our server runs the path tuned for your exact codec route (stream-copy for H.264 MOV, full H.264 transcode for ProRes / HEVC / DV), and the output is delivered through Bunny CDN. For an H.264 MOV remux, that whole round trip is dominated by upload time — the actual conversion is about 20 ms. For a full ProRes-to-H.264 transcode on a 30-second 1080p clip, expect ~10–15 seconds end-to-end.

What this tool does, exactly

Behind the scenes, two ffmpeg paths. Fast remux: `-c copy` stream-copies the H.264 video and AAC audio bits into an MP4 container with the +faststart flag — no re-encoding, no quality change. Compatible / Compress / Edit modes: full decode + H.264 encode at CRF 22 (or 27 for Compress), AAC audio at 160 kbps, yuv420p pixels, +faststart MP4 packaging. ProRes, HEVC, MPEG-4, and DV inputs all flow into the same H.264 output that plays on every device, every browser, and every social platform.

What is MOV, and why does it cause problems?

MOV is Apple's QuickTime container, the 1991 ancestor of MP4 itself. iPhones, Macs, ProRes editing pipelines, and DV camcorders all default to it. The container is fine — the friction is what's inside. Apple-proprietary streams like ProRes and Animation play great in Final Cut but not on Android or Windows Media Player. HEVC (iPhone's default since iPhone 7) is patent-encumbered and not supported by every browser. Re-encoding to H.264 + AAC inside an MP4 wrapper produces a file that plays everywhere — phones, browsers, smart TVs, every social uploader.

Common questions

Is this really the fastest MOV to MP4 converter?

For H.264 MOV files (the common case after a screen recording or modern edit export), fast remux runs as a stream-copy — the ffmpeg step itself takes about 20 ms on our box, so the total time is dominated by upload. For ProRes or HEVC inputs that need a full transcode, expect 10–15 seconds for a 30-second 1080p clip. Both paths are significantly faster than browser ffmpeg.wasm equivalents because we run native ffmpeg on a server, not single-threaded WebAssembly in your tab.

Will I lose quality?

Fast remux keeps the encoded video bits unchanged, so the video itself does not lose quality. Compatible MP4 and Compress re-encode to H.264, so they trade some quality for universal playback or smaller file size. Use Best quality when preserving detail matters.

What if my MOV has ProRes or HEVC?

Use Compatible MP4. The tool decodes the MOV and encodes H.264 video with AAC audio — the safest format for browsers, Android, Windows, social uploads, and client review links. Because we run native ffmpeg on the server, very large 4K ProRes masters that crash browser converters work here up to the 500 MB cap.

What is the biggest file I can convert?

Up to 500 MB per file, with up to six files in a batch. There is no browser memory ceiling because the encode happens server-side with native ffmpeg.

Can I trim, crop, add text, or add music?

Yes. The MOV converter includes start-time and max-length trimming, square / 16:9 / 9:16 crop presets, simple visual filters, a bottom text overlay, and optional replacement audio. Those edit paths output H.264 + AAC MP4 for maximum compatibility.

Is my file private?

We accept the file over a presigned upload to our B2 storage POP, convert it on our server with ffmpeg, and serve the result through Bunny CDN. The source and output are deleted within 24 hours. No signup is required.

Does this work on iPhone and mobile?

Yes. iPhone Safari, iPad, and Chrome / Edge on Android can all upload .mov files to the tool and download the finished MP4. Because the conversion runs on our server (not in the browser), there is no mobile memory ceiling — iPhone 4K HEVC works the same as desktop.

Is this really free?

Yes, no catch. Clipy is a free screen recorder; these tools live next door as a free utility. No watermark, no signup wall, no per-day cap.

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