A free space eraser
About this app
A high performance free space eraser, the first on Android. Use before selling your device, after enabling encryption, or after deleting many apps/files.
• Due to how flash drives work and the partition layout of devices, it'll never be possible to fully fill the drive.
• Warning! Excessive use WILL destroy your device!
What is free space erasing?
• Typically when you delete a file it is not really deleted, it is merely removed from the file system's index.
• A free space eraser tool such as this one fills the remaining space of your drive with random noise files and then deletes them.
• This process makes deleted files for the most part irrecoverable.
What is file table filling?
• On some file systems, deleted file names can still be accessible in backup index databases.
• By creating many tens or hundreds of thousands of empty files with different random names you can push out the old files.
• This process makes deleted file names for the most part irrecoverable.
Licensed under AGPL-3.0-or-later, by Divested Computing Group.
What's New in v1.8
Imported from the F-Droid repository index.
- Translation updates thanks to the following contributors:
- - Arabic: jonnysemon
- - Czech: Fjuro
- - Estonian: Priit Jõerüüt
- - Italian: Dark Space
- - Portuguese (Brazil): Jose Delvani
Version history
Dec 9, 2024 · 0.1 MB · Android API 14–32 · code 35
Imported from the F-Droid repository index.
- Translation updates thanks to the following contributors:
- - Arabic: jonnysemon
- - Czech: Fjuro
- - Estonian: Priit Jõerüüt
- - Italian: Dark Space
- - Portuguese (Brazil): Jose Delvani
SHA-256 ba8dcd0566affda61b7ad94cb7f1f2b1c0cbff2cb78bd2fd042b6a0e3858406e
Aug 3, 2024 · 0.1 MB · Android API 14–32 · code 34
Imported from the F-Droid repository index.
- Translation updates thanks to the following contributors:
- - Chinese (Simplified): 大王叫我来巡山
- - Croatian: lukapiplica
- - German: thereisnoanderson
- - Norwegian Bokmål: Even Bull-Tornøe
- - Portuguese (Brazil): lucasmz-dev
SHA-256 2f55975a035699ffd8154d80f23d2e5314e573518b5c937c2191b4057c5b4b15
May 20, 2024 · 0.1 MB · Android API 14–32 · code 33
Imported from the F-Droid repository index.
- * Add Russian translations thanks to @yurtpage
SHA-256 756f04dcacbd495d91b94181e3af63a761b08287755bed6efd2fef5d97698a3d
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be us.spotco.extirpater is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.7 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Extirpater first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Extirpater, and a listing is removed when the evidence for it stops holding up.
Get Extirpater
Every source we list for us.spotco.extirpater is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
ba8dcd0566affda61b7ad94cb7f1f2b1c0cbff2cb78bd2fd042b6a0e3858406e
Signing certificate
27db3076ed1fa9a1c50d6aa8cb47fd429ec76fe65a14783998292c9d12331674
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.