MetaJammer
Scramble, fake, or strip metadata from media files for total privacy.
New in version 0.5.6
- Added PDF Form XObject user watermark removal while strictly preserving commercial software trial stamps and document navigation links.
- Added embedded thumbnail detection for EXIF IFD1 and JFIF/JFXX markers in metadata inspection.
- Added progressive per-file background metadata extraction and loading state indicators in Metadata Preview.
- Disabled Continue action during metadata extraction to prevent premature processing.
- Optimized PDF watermark scanning performance by skipping Image XOb
- Added embedded thumbnail detection for EXIF IFD1 and JFIF/JFXX markers in metadata inspection.
- Added progressive per-file background metadata extraction and loading state indicators in Metadata Preview.
- Disabled Continue action during metadata extraction to prevent premature processing.
- Optimized PDF watermark scanning performance by skipping Image XOb
MetaJammer is a privacy-focused Android application designed to scramble, fake, or completely strip metadata from your media files. It provides users with total control over their digital footprint before sharing photos or videos online.
Key Features:
- Deep Metadata Stripping: Targets EXIF, XMP, GPS coordinates, hardware serial numbers, embedded thumbnails, PNG chunks, and SVG embedded metadata.
- Metadata Poisoning & Profiles: Don't just remove data—confuse it. Generate highly realistic fake metadata with camera hardware profiles and instant location presets.
- Granular Tag Controls: Selectively strip or preserve individual categories (GPS, Device, Date/Time, Camera Settings, Author/Comments).
- Before / After Visual Diff: Inspect original vs. modified metadata side-by-side with color-coded status badges and tag filtering.
- Metadata Preview: Inspect the existing metadata of your files before processing them to see exactly what information is being exposed.
- Interactive Map Picker & Custom Presets: Visually choose a "fake" location on a 100% offline Compose vector world map with landmark presets and user-defined custom location presets.
- Quick Scrub & Share: Standalone HUD activity to scrub and re-share files directly with zero overhead.
- Background Batch Processing: Reliable processing for 50+ high-resolution files at once using Android WorkManager.
- Multi-Format Support: Full compatibility with modern image formats (JPEG, PNG, WebP, HEIF/HEIC, SVG), video containers (MP4, MOV), and PDF documents (metadata stripping/poisoning and hidden annotation removal).
Privacy & Security:
- Zero Broad Permissions & Zero Network: The app requires NO storage or network permissions. It uses modern Scoped Storage, SAF, and an air-gapped local architecture.
- 100% FOSS: Built entirely with Free and Open Source Software. No proprietary SDKs, trackers, or "phone-home" analytics.
- Fail-Closed Processing: Processing failures abort immediately; unscrubbed files are never accidentally exported.
- 100% Air-Gapped Privacy: The app requests NO internet permission (INTERNET completely removed). Map rendering and processing are 100% local, eliminating data exfiltration risks.
- No Cloud Leaks: Android Auto-Backup is disabled to ensure unstripped metadata never leaves your device during processing.
- Automatic Cleanup: All temporary processing residue and stale outgoing share caches are wiped automatically.
Key Features:
- Deep Metadata Stripping: Targets EXIF, XMP, GPS coordinates, hardware serial numbers, embedded thumbnails, PNG chunks, and SVG embedded metadata.
- Metadata Poisoning & Profiles: Don't just remove data—confuse it. Generate highly realistic fake metadata with camera hardware profiles and instant location presets.
- Granular Tag Controls: Selectively strip or preserve individual categories (GPS, Device, Date/Time, Camera Settings, Author/Comments).
- Before / After Visual Diff: Inspect original vs. modified metadata side-by-side with color-coded status badges and tag filtering.
- Metadata Preview: Inspect the existing metadata of your files before processing them to see exactly what information is being exposed.
- Interactive Map Picker & Custom Presets: Visually choose a "fake" location on a 100% offline Compose vector world map with landmark presets and user-defined custom location presets.
- Quick Scrub & Share: Standalone HUD activity to scrub and re-share files directly with zero overhead.
- Background Batch Processing: Reliable processing for 50+ high-resolution files at once using Android WorkManager.
- Multi-Format Support: Full compatibility with modern image formats (JPEG, PNG, WebP, HEIF/HEIC, SVG), video containers (MP4, MOV), and PDF documents (metadata stripping/poisoning and hidden annotation removal).
Privacy & Security:
- Zero Broad Permissions & Zero Network: The app requires NO storage or network permissions. It uses modern Scoped Storage, SAF, and an air-gapped local architecture.
- 100% FOSS: Built entirely with Free and Open Source Software. No proprietary SDKs, trackers, or "phone-home" analytics.
- Fail-Closed Processing: Processing failures abort immediately; unscrubbed files are never accidentally exported.
- 100% Air-Gapped Privacy: The app requests NO internet permission (INTERNET completely removed). Map rendering and processing are 100% local, eliminating data exfiltration risks.
- No Cloud Leaks: Android Auto-Backup is disabled to ensure unstripped metadata never leaves your device during processing.
- Automatic Cleanup: All temporary processing residue and stale outgoing share caches are wiped automatically.
- Author: GabryDX
- License: ISC License
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
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arm64-v8aarmeabi-v7ax86x86_64This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 4.9 MiB PGP Signature | Build Log