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KeyStore Explorercertstrap
Free

Free and open source with no paid tier.

 Free

Free and open source under the Apache 2.0 licence.

Windows, macOS, Linux Windows, Linux, Command line
  • Replaces keytool and jarsigner with dialogs
  • Converts between many key and certificate formats
  • Simpler than raw openssl commands
  • Covers CA creation, CSRs and signing
  • Needs a Java runtime installed
  • Focused on Java KeyStore workflows
  • Command line only
  • Aimed at basic private PKI rather than full certificate lifecycle management
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: Apache-2.0
No account needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked October 2, 2026

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