Welcome to uriparser!

Latest News

• 2025-12-15 — uriparser 1.0.0 has been released, includes security fixes
• 2025-09-03 — uriparser 0.9.9 has been released
• 2024-05-05 — uriparser 0.9.8 has been released, includes security fixes
• 2022-10-05 — uriparser 0.9.7 has been released
• 2022-01-06 — uriparser 0.9.6 has been released, includes security fixes
• …

What is uriparser?

uriparser is a strictly RFC 3986 compliant URI parsing and handling library written in C99. uriparser is cross-platform, fast, supports both char and wchar_t strings, and is licensed under the New BSD license.

There are a number of applications, libraries and hardware using uriparser, as well as bindings and 3rd-party wrappers. uriparser is packaged in major distributions.

Please continue with:

• API Documentation

If you have found a bug, please report it so it gets fixed. Thank you!

Sebastian Pipping

Features

• Cross-platform (Unix, Windows, Mac OS X, ...)
• Strictly compliant to RFC 3986 (latest URI RFC on track STD 66 to date)
  • Parsing
  • Reference resolution (section 5.2, since version 0.4.0)
  • Reference creation (since version 0.5.2)
  • Recomposition (section 5.3, since version 0.4.0)
  • Syntax-based normalization (section 6.2.2, since version 0.5.0)
• Fast (linear input length time complexity)
• Support for both char and wchar_t strings
• No external dependencies
• Extensive unit testing using CppTest
• Liberal license (New BSD license)

Dependencies

None