Thalhammer/jwt-cpp

Health v2 · maintenance only

Adoption not part of the score

1160 stars · 311 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

jwt-cpp is a header-only C++11 library for creating and validating JSON Web Tokens (JWT). It supports all standard signature algorithms (HMAC, RSA, ECDSA, PSS, EdDSA) with a modular design that allows adding custom algorithms.

Use cases

• create and sign JWTs in a C++ application
• validate and decode JWT tokens for API authentication
• verify JWT signatures with RSA or ECDSA keys
• add token-based auth to a C++ web service
• decode JWT claims without verification
• support Ed25519 signed tokens in C++

When to choose

• you need JWT support in a C++ project without adding compiled dependencies
• you need all standard JWT signature algorithms including EdDSA and ES256K
• you want a header-only library that integrates with your existing JSON library

When to avoid

• you are working in another language like Python, Go, or JavaScript
• you need a full OAuth2/OpenID Connect client rather than just JWT handling
• you need token issuance/revocation infrastructure rather than a signing library

Facets

library · maturity stable

auth cryptography serialization security developer-tools web-development apis cpp cross-platform windows jwt header-only c++11 token-validation jws rfc7519 linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="Thalhammer/jwt-cpp")