KillMetadataOpen cleaner

EPUB METADATA REMOVER

Remove supported metadata from an EPUB

EPUB is a ZIP package with XML publication metadata. KillMetadata removes optional authorship and publishing details from supported package documents while preserving the fields an EPUB reader requires.

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
  • Creator and contributor values
  • Publisher, description, subject and rights fields
  • Optional dates and source or relation metadata
  • ZIP entry comments and variable timestamps
Preserve
  • Required title, language and identifier
  • Reading order, navigation and content documents
  • Styles, fonts and media assets
  • Required package structure and mimetype
Outside this guarantee
  • Visible author names inside book content
  • DRM or encrypted publications
  • Unsupported embedded-file metadata without recursion
  • Reader-library and cloud-account records

WHY THE ENGINE MATTERS

Some EPUB metadata is mandatory

The strict XML parser distinguishes optional publishing properties from required title, language and identifier values. Required fields are marked functional instead of deleted.

The package is rebuilt with fixed timestamps and verified as an EPUB structure. Encryption and unsafe paths are rejected.

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 optional author and publishing fields
  2. 02Confirm required EPUB values are preserved
  3. 03Create the cleaned publication
  4. 04Open it in an EPUB reader and verify

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.

Why does title remain?

EPUB requires title, language and identifier metadata for a valid publication. KillMetadata marks those fields required rather than corrupting the book.

Can DRM-protected EPUB files be cleaned?

No. Encrypted or DRM-protected publications are rejected.

RELATED GUIDES

Keep checking the file, not just its name.

DOCUMENT METADATA REMOVERRemove metadata from documentsRemove supported metadata from PDF, Word, Excel and PowerPoint files locally while keeping visible content and reporting hidden-content limits.ZIP SHELL METADATA CLEANERRemove ZIP comments and timestampsClean ZIP shell comments and timestamps locally, with optional bounded recursive cleanup of supported embedded files and honest partial results.WORD + DOCX METADATA REMOVERRemove metadata from a Word documentRemove supported author, company, last-editor, date and attribution metadata from DOCX files while preserving content and formatting.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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