botan

The premium Open Source alternative to OpenSSL

🎯 Best for:C++ developers requiring a modern, secure crypto library.
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BSD-2-ClauseLicense

What is botan?

Replaces standard cryptographic toolkits for modern C++ application development. Provides a comprehensive suite of algorithms with a focus on side-channel resistance.

Tech Stack
C++Security & Passwords

Why botan?

  • Clean, modern C++ API
  • Excellent side-channel resistance
  • Modular build system

Limitations

  • Smaller community than OpenSSL
  • Limited language bindings
  • Documentation can be sparse
3/4/2026
Last Update
634
Forks
279
Issues
BSD-2-Clause
License
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Competitor Cost
-$1,440
/ year (est. based on OpenSSL)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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