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KeyStore Explorer

KeyStore Explorer is an open source graphical replacement for the Java keytool and jarsigner command-line utilities, maintained by Kai Kramer. It is free software released under the GNU GPL version 3 or later.

Licensing at a Glance

  • Open source

  1. KeyStore Explorer is an open source GUI replacement for the Java command-line utilities keytool and jarsigner.[1]

  2. The source files state that KeyStore Explorer may be redistributed and modified under the GNU General Public License version 3 or any later version (SPDX GPL-3.0-or-later); copyright is held by Wayne Grant (2004–2013) and Kai Kramer (2013 onward).[2]

  3. The project history notes that KeyStore Explorer began as open source, became a commercial product for a period, and was later re-licensed to be free for all to use.[3]

  4. Windows installers are offered with a bundled custom Java runtime or without one, in which case Java 17 or later must be installed separately.[4]

Products

References

  1. KeyStore Explorer · keystore-explorer.org · retrieved 2026-09-27
  2. keystore-explorer/kse/src/main/java/org/kse/KSE.java at main · kaikramer/keystore-explorer · GitHub · github.com · retrieved 2026-09-27
  3. KeyStore Explorer - History · keystore-explorer.org · retrieved 2026-09-27
  4. KeyStore Explorer - Download · keystore-explorer.org · retrieved 2026-09-27
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