search⌘KtranslateENexpand_moreupload_fileConvert

Convert MOV to MP4 Online Free

Most MOVs don't need converting. Just a new wrapper.

MOV and MP4 are near-identical boxes. If the video inside is already compatible we move it across untouched: seconds, not minutes, and no quality lost. Pick where your file came from.

phone_iphoneiPhone, defaultHEVC · HDR · 4K 30

settings_suggestiPhone, “Most Compatible”H.264 · SDR · 1080p

screen_recordMac screen recordingH.264 · variable frame rate

videocamCamera / editor exportProRes 422 · 10-bit

IMG_4821.MOV312 MBIMG_4821.mp493 MB

videocamVideoHEVC (H.265) · 4K · Dolby Vision HDR

autorenewencode

videocamVideoH.264 · 4K · tone-mapped to SDR

graphic_eqAudioAAC · 48 kHz stereo

arrow_forwardcopy

graphic_eqAudioAAC · 48 kHz stereo

location_onLocation & capture dateApple metadata

arrow_forwardcopy

location_onLocation & capture daterewritten as MP4 tags

photo_cameraLive Photo linkApple-only track

blockdrop

photo_cameraLive Photo linknot allowed in MP4 · removed

brandqtlength0:58tracks4

brandmp42length0:58tracks3

output

Plays everywhereH.264 + AAC. Windows, Android, old TVs, every app.Keep original qualityLeave HEVC and HDR as they are. Smaller, for Apple and modern devices.

autorenewRe-encode videoThe video codec isn’t playable everywhere, so it’s rebuilt as H.264. One careful encode at high quality.

time≈ 35 ssize change−70%

autorenewConvert to MP4

Open MP4, MKV, MOV, AVI, WMV, FLV, RealMedia, DVD VOB, camcorder MTS or almost anything else, and save it as any of 32 formats. The converting happens in this tab. Your video is never uploaded.

video_fileChoose videosscienceMake a 6 s test clip

memoryThe enginenot loaded

whatFFmpeg compiled to WebAssembly

download≈ 31 MB, once per visit

readsloads with the engine

writes32 targets, checked on load

loads when you convert, or nowdownloadLoad now

~/convert

Your files, then one of 32 targets.

Each file is identified from its first bytes as soon as you add it. Once the engine is loaded it is read in full, so you see the real codecs, size and length before you convert.

filefirst bytessizeinside (read by engine)status

movieclose

upload_fileDrop videos hereor click to choose. Any container, any size your device can hold.

Save asreadyno sound trackafter engine loads

Common6 formats

.mp4.avi.mkv.mov.wmv.flv

Web3 formats

.webm.ogv.m4v

Professional5 formats

.mpg.mpeg.vob.mts.m2ts

Mobile2 formats

.3gp.3g2

Legacy4 formats

.rm.rmvb.asf.swf

Codec & camera12 formats

.av1.avchd.divx.f4v.hevc.m2v.mjpeg.mpeg-2.mxf.ts.wtv.xvid

Size

Keep1080p720p480p

Quality

HighBalancedSmall file

Sound

KeepMonoRemove

Frame rate

Keep30 fps24 fps

Length

Whole videoFirst 30 sFirst 10 s

Common · container · since 2001.mp4checked on load

MPEG-4 Part 14 on the ISO base media format. The safest choice when a file has to play anywhere.

file you getvideo.mp4

containermp4

videoH.264 (x264) (if in build)

soundAAC

best forWeb, phones, social, sharing

this browser plays itmaybe

command it runs

ffmpeg -i input.mp4 -map 0:v:0 -map 0:a:0? -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -c:v libx264 -preset veryfast -crf 23 -pix_fmt yuv420p -c:a aac -b:a 128k -ac 2 -f mp4 -movflags +faststart video.mp4

no files yetboltConvert to .mp4

Results, read back by the enginefolder_zipDownload all as ZIP

from · downloadDownload

~/same-family

MP4 was built from MOV.

When the MP4 standard was written in 2001, it took Apple's QuickTime file layout almost as-is. Both store video in the same kind of labelled boxes; what differs is mostly which codecs and extras each one is allowed to hold.

MOVApple QuickTime · 1991

ftypfile type: “qt”moovthe index: tracks, timing, codecsmdatthe actual audio & video dataudtaApple extras: Live Photo, timecode

checkHolds almost any codec, including ProRes and PCMcheckApple-specific tracks for editing appscloseMany Windows, Android and web tools can’t read it

MP4ISO standard · 2001

ftypfile type: “isom / mp42”moovthe index: same structuremdatthe actual audio & video datametastandard tags: title, date, location

checkReadable by virtually every player and sitecheckSame boxes, so tracks move across unchangedcloseNo ProRes, no uncompressed audio, no timecode track

~/why-it-looks-washed-out

iPhone videos are HDR. Most players aren't.

Since the iPhone 12, video is recorded in HDR by default: brighter highlights and a wider range of colour than normal screens can show. Play it on a regular screen without adjustment and it looks grey and flat. When re-encoding for "plays everywhere", we remap the brightness to standard range so it looks right on any screen.

HDR on an HDR screenHDR on a normal screenConverted to SDR

check_circleTone-mapped to standard range: not as punchy as real HDR, but correct on every screen.

~/will-it-play

The codec decides, not the extension.

An MP4 with HEVC inside can still fail on an old laptop. Only H.264 in MP4 plays on truly everything, which is why it's our default for sharing.

plays onMOV · HEVCiPhone defaultMP4 · HEVC“keep quality”MP4 · H.264“plays everywhere”iPhone, iPad, Maccheck_circleplayscheck_circleplayscheck_circleplaysWindows 10 / 11errorneeds extensionerrorneeds extensioncheck_circleplaysAndroid phoneserrorneeds extensioncheck_circleplayscheck_circleplaysWeb browserscancelwon’t playerrorneeds extensioncheck_circleplaysSmart TVs (pre-2018)cancelwon’t playcancelwon’t playcheck_circleplaysWhatsApp, Discord, emailerrorneeds extensionerrorneeds extensioncheck_circleplays

~/next-steps

Plays now, but still too big?

A rewrapped MOV is exactly as large as before. These handle size, trimming and sound.

compressVideo compressorRewrapping keeps the size. Compress to fit WhatsApp, Discord or an email.IMG_4821.mp4 · 312 MBarrow_forward24 MB movie_editVideo editorTrim the start and end, or cut several clips into one video.3 clipsarrow_forwardholiday.mp4 music_videoMP4 to MP3Only need the sound? Pull the audio track out on its own.talk.mp4arrow_forwardtalk.mp3 swap_horizVideo converterNeed WebM for a website, or AVI for an old player? Every other format lives here.clip.movarrow_forwardclip.webm

Sources

[1]MP4 file formatThe ISO standard for MP4, derived from the QuickTime file format.ISO/IEC 14496-14 · ISO ↗[2]QuickTime file formatApple’s specification for MOV atoms: moov, mdat, udta and more.Apple Developer ↗[3]Record HDR video on iPhoneWhich iPhones record HDR by default and how to change it.Apple Support ↗

Frequently Asked Questions

Is converting MOV to MP4 free?

Yes, MOV to MP4 conversion is completely free with no signup, no watermark, and no usage limit. Convert as many files as you need.

Are my files uploaded to a server?

No. The MOV to MP4 converter runs in your browser when your file is supported there, so the file stays on your device for that workflow, reducing server exposure for that workflow. If the file is sensitive, check the processing mode first.

How long does MOV to MP4 conversion take?

Most MOV to MP4 conversions finish in under a minute. Bigger files take longer, in proportion to their size. There is no queue to join and no account to make first.

Will the conversion reduce file quality?

Depends on what you are converting between. Go lossless to lossless and the picture or the audio comes out untouched. Go to a lossy format and you give up a little to get a smaller file.

Does this work on mobile devices?

Yes. The MOV to MP4 converter works on phones, tablets, and desktops in any modern browser including Chrome, Safari, Firefox, and Edge.