Video files carry more hidden data than most people realise. Every MP4 or MOV recorded on a smartphone quietly embeds where you were standing, what device you used, and exactly when you pressed record. None of this is visible when someone watches the file. All of it is readable by anyone who knows how to look.
Removing metadata from video files takes a few seconds and requires no specialist software. This guide covers how to do it, what your video files actually contain, and whether quality is affected.
How to Remove Metadata from a Video File in Your Browser
PrivMeta removes all metadata from video files directly in your browser. Your files are never uploaded to a server. PrivMeta uses FFmpeg compiled to WebAssembly, which means the entire process runs locally in your browser tab.
Supported formats: MP4, MOV, AVI, WEBM, MKV
- Go to PrivMeta
- Drop your video file into the upload area
- Click Remove metadata
- Download the cleaned file
PrivMeta strips all metadata streams and copies the video and audio tracks without transcoding, so your video quality is preserved exactly. No recompression, no quality loss, no waiting for a server.
For technical users who prefer the command line:
ffmpeg -i input.mp4 -map_metadata -1 -c copy output.mp4
The -map_metadata -1 flag removes all metadata streams. The -c copy flag copies the video and audio streams without transcoding, keeping the process fast even for large files.
What Metadata Does a Video File Contain?
Video metadata is stored at the container level, in the file's structure rather than in the image or audio content itself. The exact fields depend on the format, but across all common video formats you will typically find:
GPS coordinates: latitude, longitude, and sometimes altitude of the recording location. Smartphones with location services enabled write this automatically to every video they record.
Device make and model: the phone or camera that captured the footage.
Creation date and time: when recording started, often precise to the millisecond.
Software and encoder details: the application or firmware used to record or export the file, including version number.
Title, comment, and description: free text fields that editing software often populates automatically.
Author and copyright: named creator fields, sometimes filled in from software account settings.
Technical details: duration, frame rate, resolution, codec name, and bit rate. These are less sensitive but still part of the metadata layer that travels with the file.
GPS is the most significant privacy concern. MP4 and MOV files recorded on iPhones, Android phones, and dedicated cameras routinely include precise coordinates when location services are enabled. This data is readable by any metadata tool, with no specialist knowledge required.
When you send a video directly, via email, messaging apps, AirDrop, or any file transfer, the recipient gets the original file with all its metadata intact. Platforms like YouTube and Vimeo strip metadata on upload, but that protection does not exist for direct file sharing.
Supported Video Formats
PrivMeta handles the most widely used video formats:
| Format | Common use | Key metadata fields |
|---|---|---|
| MP4 | Smartphones, cameras, web video | GPS, device model, creation date, encoder |
| MOV | iPhones, Final Cut Pro | GPS, device model, creation date |
| MKV | Open source video, archiving | Writing app, muxing app, creation date |
| AVI | Windows, legacy recording | Software, creation date, author |
| WEBM | Web streaming | Encoder, muxing app, creation date |
MKV files often carry a "Writing application" field naming the software and version used to create or process the file. For anyone distributing edited content, this can expose internal production workflow details you did not intend to share.
Does Removing Metadata Affect Video Quality?
No. Video quality is completely unaffected.
Metadata is stored in a separate part of the container file, entirely distinct from the video and audio streams. When metadata is removed, the streams themselves are untouched. The video plays back at exactly the same resolution, frame rate, and quality as the original.
PrivMeta uses stream copying rather than transcoding, which means the video is never decoded and recompressed during processing. The pixels in your video are never touched.
After processing, the following are fully preserved: video content, audio track, resolution, frame rate, chapter markers, and subtitles. The following are removed: GPS coordinates, device information, creation timestamps, software tags, and all other metadata fields.
Share Video Without the Hidden Details
Before sharing footage from events, interviews, or any location where GPS matters, strip the metadata first. Before delivering video files to clients when encoder or workflow details should stay private, strip it. Before uploading raw footage to shared storage or sending to collaborators, strip it.
PrivMeta removes metadata from your video files in your browser in seconds. No upload, no account, no software to install.
If you also work with audio recordings, see our guide on removing metadata from audio files, covering MP3, FLAC, WAV, and more, all processed in your browser with no upload required.