Open-source metadata removal

7 metadata removal whose code is public under an OSI-approved license, rated for privacy with evidence. Picks first, then by score.

1. ExifCleaner Grade B

   Desktop app for Windows, macOS and Linux that removes metadata from images, media files and PDFs, with drag and drop and batch processing. It uses ExifTool.

   MIT. Source code

2. ExifEraser Grade B

   Android app that removes Exif and other metadata from JPEG, PNG and WebP images. The developer considers it in maintenance mode, with bug fixes only.

   MIT. Source code

3. ExifTool Grade B

   Cross-platform Perl library and command-line tool by Phil Harvey for reading, writing and removing metadata in images, audio, video and documents.

   GPL-3.0. Source code

4. ImageOptim Grade B

   macOS app that compresses images and removes metadata such as EXIF data, comments and color profiles, using drag and drop.

   GPL-2.0. Source code

5. mat2 Grade B

   Python library and command-line tool that removes metadata from images, audio, video, office documents, PDFs and archives. Includes a service menu for the Dolphin and Nemo file managers.

   LGPL-3.0. Source code

6. Metadata Cleaner Grade B

   GNOME desktop app for viewing and removing metadata in files, built on the mat2 library. Maintained by a community project after the original author stepped down.

   GPL-3.0-or-later. Source code

7. Scrambled Exif Grade B

   Android app that removes Exif metadata from pictures before they are shared, by acting as an intermediate step in the share menu.

   GPL-3.0. Source code

Compare all 7 metadata removal, open source or not.