Can I edit MP4 tags without re-encoding?

Yes. This MP4 tag editor rewrites only the metadata atoms inside the moov container and repairs chunk offsets when the file grows or shrinks. The compressed video frames are never re-encoded, so quality and duration stay identical.

What metadata does a video contain?

Typically the title, artist and album tags your phone or editor wrote, the creation and modification dates, encoder software and sometimes GPS or device information. Cover art and long descriptions may also be embedded.

MP4 & Video Metadata Editor

Q: How do I remove metadata from a video?

Open the MP4 or MOV in the editor above, press “Remove All Metadata” and download. All QuickTime user-data and iTunes ilst atoms are deleted and the movie-header creation dates are zeroed, while the video and audio streams are copied unchanged.

A free MP4 tag editor and video metadata remover for MP4, MOV, M4V, M4A and 3GP files. Edit titles and credits, wipe recording dates and software traces, or clear everything — without re-encoding and without uploading your videos anywhere.

QuickTime + iTunes atoms No re-encoding Offset-safe rewriting

How to remove metadata from a video

Open the video

Drag your MP4, MOV or 3GP into the editor — even large files, since everything is processed on your own machine. The atom structure is parsed in seconds.

Review the tags

Inspect the QuickTime/iTunes metadata (©nam title, ©ART artist, ©day date, encoder, comments, cover art, track numbers) and the movie-header creation and modification dates, which quietly reveal when and with what the video was made.

Remove or edit, then download

Delete individual tags, edit titles and credits inline, or press “Remove All Metadata” for a fully sanitized file. The editor pads the movie container to keep media offsets stable and repairs chunk offset tables when the size changes — video and audio frames are copied bit-for-bit.

Video metadata, decoded

Where tags live in an MP4

MP4-family files store metadata as atoms (also called boxes) inside the moov › udta container. Apple's iTunes style keeps them in a meta › ilst list — ©nam title, ©ART artist, ©day date, trkn track, covr cover art — while classic QuickTime movies use direct atoms like ©nam in udta. The editor reads and writes both styles and shows duration, dimensions and timescale for context.

Why clean a video before publishing

Videos exported from phones and editors often carry the recording timestamp, the editing software and version, sometimes GPS coordinates and device identifiers. Media players and forensic tools surface all of it. A metadata remover that strips the user-data atoms — while leaving the actual H.264/HEVC stream untouched — makes the file shareable without leaking its history, at zero quality cost.

Video metadata FAQ

How do I remove metadata from a video for free?

Drop the file here, press “Remove All Metadata”, download. This metadata remover works for video files free, unlimited and offline in your browser — unlike desktop suites, no export or re-encoding is involved.

Does removing MP4 metadata damage the video?

No. Metadata atoms sit in their own container. When they are removed, the movie header is padded with a free atom so media data stays at the same file offsets; when tags grow, the chunk-offset tables (stco/co64) are repaired. Frames are never re-encoded.

Can I edit the title my iPhone or camera wrote into a video?

Yes — click the ©nam value and type a new one. Date, artist, comment, description, genre and copyright atoms work the same way, and “Add Tag” can create fields the file doesn't have yet.

Which video formats are supported?

MP4/M4V, QuickTime MOV, M4A audio, and 3GP/3G2 from phones. Fragmented streaming MP4s can be cleaned but not grown — if you need to add tags to a fragmented file, remux it first with any standard tool.