MIFARE Classic Tool
MIFARE Classic Tool is a free, open-source developer tool for Android. An NFC app for reading, writing, analyzing, etc. It has 6,436 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.
About MIFARE Classic Tool
This is a low-level tool for reading, writing and analyzing MIFARE Classic RFID tags. It is designed for users who have at least basic familiarity with the MIFARE Classic technology. It provides several features to interact with (and only with) MIFARE Classic RFID-Tags. Read MIFARE Classic tags Save, edit and share the tag data you read Write to MIFARE Classic tags (block-wise) Clone MIFARE Classic tags (Write dump of a tag to another tag; write 'dump-wise') Key management based on dictionary-attack (Write the keys you know in a file (dictionary).
Privacy and F-Droid
F-Droid builds MIFARE Classic Tool from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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What is MIFARE Classic Tool?
MIFARE Classic Tool is a free, open-source developer tool for Android. An NFC app for reading, writing, analyzing, etc. It has 6,436 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.
Is MIFARE Classic Tool free and open source?
Yes. MIFARE Classic Tool's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install MIFARE Classic Tool?
You can install MIFARE Classic Tool from F-Droid (package de.syss.MifareClassicTool) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: v4.3.1).
Is MIFARE Classic Tool still maintained?
The repository's most recent commit was on Oct 4, 2026. Its F-Droid listing was last updated on Jan 26, 2026. appsgit only lists apps whose repository had a commit in the last six months.