Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. JP-Hash launched in 2022; newer entries below may have overtaken it.

1. 1
   HASH▲127

   Build complex simulations quickly with modular components

   2020 · hash.ai · its alternatives →

2. 2
   A portable hash map in C▲176

   A small, portable, linear probing hash map. Contribute to e-dant/salmagundi development by creating an account on GitHub.

   2024 · github.com · its alternatives →

3. 3
   Simple Hash Table Implementation for C▲42

   Simple hash table implementation for C. Contribute to watmough/jwHash development by creating an account on GitHub.

   2015 · github.com · its alternatives →

4. 4
   A hash array-mapped trie implementation in C▲171

   Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…

   2023 · github.com · its alternatives →

5. 5VA
   Vash, a memorable and distinctive visual hash (sideproject)▲5

   2011 · thevash.com · its alternatives →

6. 6
   I made a C program to create a vanity SHA-1 hash for a text file▲58

   2025 · gist.github.com · its alternatives →

7. 7HF
   Hash functions from C++ running in WebAssembly▲7

   2023 · dosyago.github.io · its alternatives →

8. 8GA
   Geometry-aware Hashing of GeoJSON objects▲7

   Just a quick little feature I implemented over the weekend. TODO: Assure that polygons can be palindromic as well

   2024 · altayakkus.dev · its alternatives →

9. 9FH
   Funny, Human-Memorable SHA-256 Fingerprints▲42

   2020 · madhash.telekinesis.cloud · its alternatives →

10. 10
    SHA256 sentence demo with Rust, rayon, once_cell, Rosetta code iterator▲14

    SHA256 sentence: discover a SHA256 checksum that matches a sentence's description of hex digit words. - joelparkerhenderson/sha256-sentence

    2023 · github.com · its alternatives →

11. 11TT
    Tifuhash - Tiny Fast Universal Hash, using 64-bit continued fractions▲42

    2017 · npmjs.com · its alternatives →

12. 12
    I built a hash-identification system with popularity ratings▲27

    🔗 Don't know what type of hash it is? Name That Hash will name that hash type! 🤖 Identify MD5, SHA256 and 300+ other hashes ☄ Comes with a neat web app 🔥 - bee-san/Name-That-Hash

    2021 · github.com · its alternatives →

13. 13
    Hash-n-slash▲6

    A concept for Sentence based URLs

    2014 · github.com · its alternatives →

14. 14
    Stateless note sharing via URL Hash▲8

    Stateless note sharing in URLs!

    2021 · n0tes.github.io · its alternatives →

15. 15
    HMAC Generator▲6

    Generates a cryptographic hash function

    2017 · codebeautify.org · its alternatives →

16. 16AS
    A Super Simple JSON CMS▲8

    2018 · medium.com · its alternatives →

17. 17
    A reimplementation of Google's sparsehash in C▲22

    A simple re-implementation of Google's sparsehash as a learning excercise. - qpfiffer/Simple-Sparsehash

    2015 · github.com · its alternatives →

18. 18JA
    jq, a lightweight commandline JSON processor▲5

    2012 · stedolan.github.com · its alternatives →

19. 19AO
    an order-preserving JSON encoding (so byte-order == value-order)▲7

    2010 · keyjson.org · its alternatives →

20. 20
    A concurrent thread-safe hash map implemented in C++▲17

    A concurrent thread-safe hash map implemented in C++ - kshk123/hashMap

    2017 · github.com · its alternatives →

21. 21CM
    Calculate MD5, SHA-1 in your browser using HTML5 and WebWorkers▲19

    2011 · browserhash.com · its alternatives →

22. 22
    A lightweight JSON Parser without memory allocation in ~250 LOC▲9

    2014 · github.com · its alternatives →

23. 23
    Hashing made simple▲10

    Hashing made simple. Get the hash of a buffer/string/stream/file. - sindresorhus/hasha

    2015 · github.com · its alternatives →

24. 24
    BEBB4185 – A new 5GB/s hash that passes SMHasher▲5

    :rocket: DISCoHAsH - Simple, fast, quality hash in 120 lines. 10GB/s serial (depending on hardware). Also in NodeJS - DO-SAY-GO/DISCoHAsH

    2020 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →