robin-hood-hashing

The premium Open Source alternative to std::unordered_map

🎯 Best for:C++ developers requiring low-latency data structures and memory efficiency.

What is robin-hood-hashing?

A header-only C++ library providing a faster alternative to standard library hash maps. It minimizes probe sequences and memory overhead through efficient Robin Hood displacement strategies.

Tech Stack
C++OS & Utilities

Why robin-hood-hashing?

  • Header-only library
  • Zero external dependencies
  • Supports C++11 through C++20

Limitations

  • Limited to C++ environments
  • Manual memory management
  • Specific use-case optimization
3/3/2026
Last Update
156
Forks
21
Issues
MIT
License
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Competitor Cost
-$1,440
/ year (est. based on std::unordered_map)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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