- eXIf metadata and embedded GPS
- tEXt, zTXt and descriptive iTXt values
- tIME modification timestamps
- XMP packets in text carriers
- Comments, author and software fields
PNG METADATA REMOVER
Remove metadata from PNG files
PNG files can store far more than pixels and transparency. Text chunks, EXIF, XMP, timestamps and application data may identify the creator or editing workflow. KillMetadata rewrites supported chunks without decoding the image stream.
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.
- IDAT and fdAT compressed pixels
- Alpha transparency
- APNG frames, order and timing
- ICC, sRGB, gamma and chromaticity data
- Visible content and OCR-readable text
- Unknown private chunks reported as a coverage gap
- Filesystem timestamps and xattrs
- Remote copies and thumbnails made by other apps
- Descriptive labels inside preserved ICC profiles, reported as partial
WHY THE ENGINE MATTERS
PNG metadata lives in typed chunks
Every PNG chunk has a type, length and CRC. The bounded writer removes supported privacy chunks, preserves functional chunks, and recalculates structure without touching IDAT or APNG frame payloads.
Color-management chunks are deliberately preserved because deleting them can change how the same pixel values appear. Unknown ancillary chunks and orientation-bearing text that cannot be separated safely are reported instead of silently claimed clean.
Explore the complete verification methodology →BEFORE YOU SHARE
A four-step privacy check.
Metadata cleaning is one part of a safe sharing workflow.
- 01Review text, EXIF and timestamp chunks
- 02Keep color, transparency and animation data
- 03Create a separate PNG copy
- 04Check verification coverage before sharing
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.
Does a PNG contain EXIF?
It can. Modern PNG files may use the eXIf chunk, and they can also store XMP or descriptive values in text chunks.
Will transparency or APNG animation break?
Supported alpha, frame and timing chunks are classified as functional and preserved by the PNG writer.
Runs locally in your browserReady to inspect your file?
Inspect this file type The picker opens only after offline protection is active.