- Title, creator, artist and copyright fields
- Location, capture and modification dates
- Comments, descriptions and custom tags
- Cover art and thumbnails where classified as metadata
- Supported private container metadata
VIDEO METADATA REMOVER
Remove metadata from video files
Video containers can hold recording locations, device software, dates, titles, comments and artwork alongside the encoded tracks. KillMetadata removes supported container metadata while preserving media essence and timing.
THE CLEANING PLAN
Remove what exposes you. Keep what makes the file work.
Every field is shown before the rewrite and classified by action and coverage.
- Encoded video and audio tracks
- Timing, synchronization and indexes
- Subtitles, captions and chapters
- HDR, color and accessibility information
- Faces, voices and visible location clues
- Burned-in captions or watermarks
- DRM-protected media
- Filesystem and media-library attributes
FORMAT DETAILS
Different containers, different rules.
Choose the guide that matches the file people actually call it.
| File type | Supported removal | Preserved | Guide |
|---|---|---|---|
| MP4 | Supported udta/meta and descriptive boxes | Tracks, timing, subtitles, HDR | View guide → |
| MOV | Supported QuickTime descriptive metadata | Encoded tracks and indexes | View guide → |
| WebM | Tags and private Info elements | Clusters, Cues and SeekHead | View guide → |
WHY THE ENGINE MATTERS
Container metadata can be removed without transcoding
MP4, MOV and M4A use ISO Base Media File Format boxes. WebM uses EBML elements. The handlers replace or rebuild supported metadata structures while preserving picture and sound essence; bounded H.264 user-data-only SEI may become equal-size filler, while WebM Clusters remain unchanged.
Preserving encoded tracks avoids quality loss and long transcodes. Ambiguous extents, CENC/DRM and structurally unsafe layouts are rejected instead of patched optimistically.
Explore the complete verification methodology →BEFORE YOU SHARE
A four-step privacy check.
Metadata cleaning is one part of a safe sharing workflow.
- 01Review location, creation software and title fields
- 02Confirm subtitles, HDR and timing are preserved
- 03Create the cleaned container copy
- 04Play the entire saved file and seek through it
QUESTIONS, ANSWERED
Know the boundary before you clean.
No vague “100% clean” claim.
Are my files uploaded?
No. The cleaner runs in your browser, has no upload endpoint, and only enables the file picker after its processor assets are available locally.
Is the original file changed?
No. KillMetadata reads the original and creates a separately named cleaned copy. It never overwrites the source file.
Will the video be re-encoded?
For supported MP4, MOV and WebM structures, encoded media data is preserved rather than transcoded.
Does this remove subtitles?
No. Subtitles and captions are functional or accessible content and are preserved.
Runs locally in your browserReady to inspect your file?
Inspect this file type The picker opens only after offline protection is active.