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What is video metadata?

A plain-English map of everything a video file says about itself, where each piece is stored, and which apps actually read it.

Open a video or photo

See everything it says about itself, explained. Then edit it or wipe it.

MP4, MOV, MKV, WebM, AVI, MTS, JPEG, HEIC, PNG and more · read on your device, nothing uploaded

Video metadata is the information stored inside a video file alongside the picture and sound: technical details such as the codec, resolution and frame rate, plus descriptive details such as when and where it was recorded, which device recorded it, a title, chapters, subtitles and, increasingly, a signed record of how it was made. Players use it to decode and display the video; galleries use it to sort and map your clips; and anyone you send the file to can read it.

Some of it is essential (without the codec details nothing could play the file), some is helpful (dates, titles, chapters), and some is a privacy risk you may not know is there (exact GPS coordinates and device serial numbers). Which fields a file contains depends on the device that recorded it, the apps it has passed through and the container format.

This guide walks through every family of fields and links to a page that checks or changes each one. To see your own file’s metadata explained field by field, open it on the metadata.video home page; it is read in your browser and nothing is uploaded.

How to see a video’s metadata on your device

Every system has a built-in view that shows a handful of fields. Each platform guide covers the details.

  1. On iPhone or iPad

    Open the video in Photos and swipe up, or tap the Info button, to see the device, date, size and location. The iPhone guide covers what iOS leaves out.

  2. On Android

    In Google Photos, open the video and tap More, then About, or swipe up. In Samsung Gallery, swipe up on the video. See the Android guide.

  3. On Windows

    Right-click the file, choose Properties and open the Details tab for length, frame size, data rate and a few tags. See the Windows guide.

  4. On a Mac

    Open the video in QuickTime Player and choose Window > Show Movie Inspector (Command-I), or select it in Finder and use File > Get Info. See the Mac guide.

How a video file is put together

A video file is a container. Inside it are one or more streams (the compressed picture, the sound, perhaps subtitles or a data track) and around them the container’s own records: how long it is, how the streams are timed, and the tags. Metadata lives at every level, which is why no single app shows all of it.

Your device’s file record (outside the file) name, date modified, date created on this computer Container tags title, recording date and time zone, GPS, make and model, software, chapters Stream details codec, profile, resolution, frame rate, bitrate, colour and HDR, audio channels Provenance XMP editing history, Content Credentials (signed) The picture and sound what metadata can’t change: faces, places, voices, burned-in text
Video metadata in layers: the container (format, duration, dates), each stream (codec, size, frame rate, colour), descriptive tags (title, comments), device and location data, and provenance (Content Credentials).

In MP4 and MOV, the most common formats from phones and cameras, everything is stored in nested boxes. Matroska (MKV and WebM) uses a similar tree of elements with different names. The codec checker explains the difference between the container and the codec, which is the source of most “why won’t it play” confusion.

ftyp file type moov · the movie header mvhd: creation date, length trak · video tkhd: rotation, size stsd: codec, colour stts/stsz: frame table trak · audio codec, channels language udta · user data ©xyz: GPS location ©mak ©mod: device meta/ilst: ©nam title chpl: chapters meta · keys …location.ISO6709 …quicktime.make …creationdate (iPhone style) uuid XMP C2PA mdat the picture and sound themselves metadata: small, rewritten when you edit media: copied untouched
Inside an MP4: ftyp identifies the format, moov holds the headers, one trak per stream and the udta and meta boxes with tags, and mdat holds the media data.

Every kind of video metadata, in plain English

Families of video metadata, where MP4/MOV and MKV keep them, and the page that deals with each.
FamilyExamplesWhere it livesCheck or change it
Codec and formatH.264, HEVC, AV1; profile, level, bit depth, chromaEach track’s sample description (stsd) in MP4; CodecPrivate in MKVCodec checker
Resolution and shape3840×2160, display aspect ratio, rotation flagTrack header and sample descriptionResolution checker
Frame rate29.97 fps, variable frame rateTiming tables (stts) or block timestampsFrame rate checker
BitrateAverage and peak Mb/s for video and audioWorked out from sizes and timingBitrate checker
Colour and HDRBT.2020, HLG, PQ, Dolby Vision profile, mastering displaycolr, mdcv, clli and Dolby Vision boxes; MKV Colour elementHDR checker
DatesRecorded, encoded, tagged; time zonemvhd, tkhd, ©day, Apple’s creationdate key; MKV DATE_RECORDEDChange video date
LocationLatitude, longitude, altitudeApple’s ISO 6709 key, ©xyz, 3GPP loci, XMP; GoPro and DJI telemetry tracksWhere was this video taken?
DeviceMake, model, lens, software, serial-style idsApple and Android keys in meta, maker boxesVideo metadata editor
Descriptive tagsTitle, description, artist, copyright, keywords, genre©nam, desc, ©ART and friends in MP4; Matroska tagsMP4 metadata editor, MKV metadata editor
Cover artA thumbnail imagecovr in MP4; attachments in MKVAdd a thumbnail to an MP4
ChaptersNamed points on the timelineA chapter track or list in MP4; Chapters element in MKVAdd chapters to an MP4
Subtitles and tracksLanguages, track names, default and forced flagsSeparate tracks with their own headersExtract subtitles
360° and spatialEquirectangular projection, stereo layoutSpherical metadata boxes in MP4360 video metadata
ProvenanceContent Credentials: creator tool, edits, AI assertionsA C2PA manifest store inside the fileContent Credentials viewer

For a single list of every field in one file, the file info report prints them all as text or JSON, and the ffprobe guide shows the command-line route.

Video metadata versus photo EXIF

People often say “EXIF” for any metadata, but true EXIF is a photo format: a block of numbered tags inside a JPEG, HEIC or TIFF. Videos rarely carry EXIF. They use the container’s own boxes or elements, Apple’s and Google’s key-value metadata, and XMP, which is a text format shared by photos and videos.

SOI start APP0 JFIF APP1 EXIF APP1 XMP APP2 ICC colour APP13 IPTC image data DQT · SOF · SOS EOI end IFD0 Make · Model · Software Orientation · DateTime Artist · Copyright Exif IFD DateTimeOriginal + offset Exposure · f-number · ISO Lens · serial numbers MakerNote (private) GPS IFD Latitude · Longitude Altitude · direction GPS date and time (UTC)
Inside a photo’s EXIF block: camera and exposure settings, date and time, GPS coordinates and a thumbnail, stored as numbered tags.
  • Photos record exposure details (shutter speed, aperture, ISO) per image; videos usually do not, or only in maker-specific data.
  • Both can record GPS, but a video may carry a moving track of positions (GoPro, drones) instead of a single point.
  • Both can carry Content Credentials and XMP.

For stills, the EXIF viewer reads photo metadata and where was this photo taken? puts a photo’s GPS on a map. Removing metadata from a photo works losslessly for JPEG, PNG and WebP.

Who reads video metadata, and what gets lost

A field is only useful if something reads it, and every app reads a different selection. A title you set may appear in VLC and Windows but not in your phone’s gallery; a location shows on the map in Photos but not on YouTube.

A rough guide. Exact behaviour varies by app and version.
ReaderUsually readsUsually ignores
Phone galleries (Photos, Google Photos, Samsung Gallery)Recording date, location, deviceTitles, comments, chapters
Desktop file browsers (Windows Details, macOS Get Info)Length, frame size, some tags, sometimes datesLocation in videos, HDR details, provenance
Media players (VLC, QuickTime, TV apps)Codec details, rotation, chapters, subtitles, titlesLocation, device
Media servers (Plex, Jellyfin, Kodi)Titles, track names and languages, default flagsLocation, device
Social platformsSometimes Content Credentials; your text descriptionMost embedded tags; the uploaded file is usually re-encoded

Sending a video also changes it. Messaging apps and social platforms usually re-encode videos and drop most tags, though the details differ by app and by how you send. The guide to which apps remove metadata explains how to test any app yourself.

Privacy: what your videos may give away

The Privacy section on this site rates what a file reveals as High, Medium or Low. The usual order of concern:

  • High: exact location. A phone clip filmed at home can carry your address to a few metres. Remove the location only to keep the date and camera, or on iPhone follow the iPhone location guide.
  • High: serial numbers and owner names. Some cameras write a serial-style id or an owner field that links clips to one device or person.
  • Medium: date and time. Reveals routines and can contradict a story.
  • Low: device model and editing software. Rarely sensitive, but it narrows down who could have filmed something.

Metadata is only what the file says about itself. Faces, street signs, number plates and spoken names are in the picture and sound, and no metadata tool removes them.

To clean everything at once, remove all metadata from the video; the streams are copied, not re-encoded. To check whether a clip was made with AI, see is this video AI?, and for signs of editing, video forensics.

Other guides worth reading

Video metadata: common questions

Does every video have metadata?

Yes, at least the technical part: a file cannot play without its codec, size and timing details. Descriptive fields such as dates, location and device are optional, and many shared videos have had them removed.

Is video metadata the same as EXIF?

Not quite. EXIF is a photo format. Videos store similar information in container boxes (MP4, MOV), Matroska tags (MKV, WebM) and XMP; real EXIF inside a video is rare.

Can video metadata be changed?

Yes. Titles, dates, locations and device fields can all be edited, and the streams can stay untouched. That is useful for fixing a wrong date, and it is also why metadata alone cannot prove when or where something was filmed.

Can metadata show where a video was filmed?

Only if the recording device saved a location and it survived. Phone camera originals often have one; videos sent through most messaging apps and platforms do not.

Does YouTube use the metadata inside my video file?

YouTube takes its title, description and tags from what you type in YouTube Studio. Embedded file tags are not a documented ranking factor, and the uploaded file is re-encoded.

Is metadata removed when I share a video?

Often, but not always, and it depends on the app and how you send it. Sending as a document or file usually keeps more than sending as media. Check the copy that arrives rather than assuming.

Where can I see all of a video’s metadata at once?

Built-in tools show only a few fields. Open the file on this site to see every field with an explanation, or use ffprobe or MediaInfo on a computer.