Quick answer
Lightweight file compression and decompression using LZMA + Base85.
F-Droid repository metadata
File85Toolkit is an Android utility app designed for efficient file management through compression and decompression.
✨ Features: - Compress files using LZMA, then encode them with Base85 for compact storage and sharing. - Decompress files by Base85 decoding and then extracting with LZMA. - Modern UI with Material 3 and Jetpack Compose support. - Fully open source, privacy-friendly, no ads.
File85Toolkit helps you save space and move files with ease, all directly on your Android device.
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
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