KillMetadataOpen cleaner

GIF METADATA REMOVER

Remove supported metadata from a GIF

GIF files can contain comments and application extensions in addition to frames. KillMetadata removes supported descriptive extensions without decoding or rebuilding the animation images.

Choose a file See what changes

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.

Remove
  • GIF comment extensions
  • Recognized XMP and descriptive application extensions
  • Supported application-written metadata
  • Trailing descriptive carriers covered by the handler
Preserve
  • Image frames and color tables
  • Frame delays and disposal modes
  • NETSCAPE animation loop behavior
  • Encoded LZW image data
Outside this guarantee
  • Unknown application extensions reported as partial
  • Visible frame content
  • Steganography
  • Filesystem and browser download records

WHY THE ENGINE MATTERS

Animation controls must not be mistaken for metadata

The parser walks GIF blocks and sub-block chains with length bounds. Comments and recognized metadata extensions are removed while graphics controls, image data and loop extensions remain.

The verifier walks the output again; an unrecognized extension is a coverage gap, not a silent success.

Explore the complete verification methodology →

BEFORE YOU SHARE

A four-step privacy check.

Metadata cleaning is one part of a safe sharing workflow.

  1. 01Review comments and application extensions
  2. 02Confirm animation controls are preserved
  3. 03Create the cleaned GIF
  4. 04Replay the output and check verification

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 GIF still animate?

Yes. Supported frame timing, disposal and loop extensions are preserved.

Does every GIF contain EXIF?

No. GIF more commonly carries comments or application extensions; this page promises only supported carriers.

RELATED GUIDES

Keep checking the file, not just its name.

IMAGE METADATA REMOVERRemove metadata from an imageRemove supported EXIF, GPS, camera, author and date metadata from JPG, PNG, WebP, GIF, TIFF, HEIC and AVIF images locally.WEBP METADATA REMOVERRemove metadata from a WebP imageRemove supported EXIF and XMP metadata from WebP images locally while preserving encoded pixels, animation, transparency and ICC color.PNG METADATA REMOVERRemove metadata from PNG filesRemove supported EXIF, text, time and descriptive metadata from PNG and APNG files while preserving pixels, transparency, animation and color.HONEST LIMITSWhat metadata removal cannot promiseUnderstand the boundaries of metadata cleanup, including visible content, hidden document content, signatures, encryption and filesystem attributes.
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