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. an order-preserving JSON encoding (so byte-order == value-order) launched in 2010; newer entries below may have overtaken it.

1. 1
   A lightweight JSON Parser without memory allocation in ~250 LOC▲9

   2014 · github.com · its alternatives →

2. 2
   A fast JSON library for Go▲119

   Fast JSON encoder/decoder compatible with encoding/json for Go - goccy/go-json

   2021 · github.com · its alternatives →

3. 3
   Jsong: faster than light streaming JSON parser and writer in C▲9

   2017 · github.com · its alternatives →

4. 4
   The Changelog - #189: JSON API with Yehuda Katz▲66

   Yehuda's start as a programmer and the spec for building API

   2016 · changelog.com · its alternatives →

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

   2012 · stedolan.github.com · its alternatives →

6. 6AS
   A Super Simple JSON CMS▲8

   2018 · medium.com · its alternatives →

7. 7
   JSON Sharp▲73

   Tool for lazy developers to convert JSON to C# Objects

   2020 · jsontocsharpconverter.web.app · its alternatives →

8. 8
   JsonTree, a tool for turning JSON data into a collapsible html tree▲9

   A lightweight vanilla Javascript micro-library for making collapsible trees with JSON - MaxLeiter/jsonTree

   2016 · github.com · its alternatives →

9. 9
   See – searchable JSON compression (offline 10-min demo)▲5

   Hi HN, I’m building SEE (Semantic Entropy Encoding): a searchable compression format for JSON/NDJSON. Goal: reduce the “data tax” (storage/egress) and “CPU tax” (decompress/parse) by keeping JSON searchable while compressed, with page-level random access. I just published a proof-first evaluation release: Offline DEMO ZIP (~10 min): prints compression ratios + skip rates + lookup latency (p50/p95/p99) DD pack: audit/repro evidence (decode mismatch=0, extended mismatch=0, audit PASS) Latest release:…

   Feb 2026 · gitlab.com · its alternatives →

10. 10BJ
    Bitwise JSON Parser written in C▲6

    2014 · web.cs.dal.ca · its alternatives →

11. 11
    Searchable compression for JSON – ~99% page skip and sub-ms lookups▲15

    Problem JSON/NDJSON is everywhere in data platforms, but compression usually breaks searchability. You either keep queryable raw stores (high I/O/egress) or compress into gz/zstd blobs (cheap to store, painful to probe). The “cloud tax” shows up as wasted reads. What I built (SEE — Semantic Entropy Encoding) A schema-aware, searchable compression codec for JSON that keeps exists/pos lookups fast while still compressing. Internals: structure-aware delta + dictionaries, a PageDir + mini-index to jump to relevant pages, and a tuned Bloom filter that skips ~99% of pages.…

    2025 · github.com · its alternatives →

12. 12AP
    A privacy-focused JSON pretty printer▲8

    2018 · nicejson.com · its alternatives →

13. 13
    bote - A fast, modern and low-memory approach to processing a big JSON▲5

    A fast, modern and low-memory approach to processing a big JSON - jankdc/bote

    Jun 2026 · github.com · its alternatives →

14. 14
    Semi-index - Speed up JSON parsing in MapReduce-like tasks▲9

    Implementation of the JSON semi-index described in the paper "Semi-Indexing Semi-Structured Data in Tiny Space" - ot/semi_index

    2011 · github.com · its alternatives →

15. 15
    Outperforming VByte for Large Integers Using Phi-Encoding▲15

    Properties of a Novel Binary Representation of Integers using Base-𝜙 - irradix/paper.md at main · DOSAYGO-STUDIO/irradix

    2024 · github.com · its alternatives →

16. 16AJ
    A JSON Viewer with indentation based highlighting, and table-view mode▲9

    2018 · json-viewer.sohamkamani.com · its alternatives →

17. 17
    Bulk set properties recursively in complex JSON string trees▲8

    An Experimental Regex Engine to Parse and Apply Bulk Changes to a JSON String Without Using 'JSON.parse()' for Deserialization - patternhelloworld/json-knife

    2022 · github.com · its alternatives →

18. 18AC
    A CPython Library for Runtime Bytecode Transformations▲5

    2016 · codetransformer.readthedocs.org · its alternatives →

19. 19
    jsonbin.org▲13

    A personal JSON store as a RESTful service

    2017 · jsonbin.org · its alternatives →

20. 20JA
    JSON as Fast as Binary▲12

    2015 · hperadin.github.io · its alternatives →

21. 21CA
    Choral, a Java-compatible language for type-safe multiparty protocols▲7

    2020 · choral-lang.org · its alternatives →

22. 22
    A better deep cloning for JavaScript objects▲5

    2014 · github.com · its alternatives →

23. 23
    Axiom▲2

    Self-Evident Structure

    Jun 2026 · getaxiom.me · its alternatives →

24. 24NJ
    Noise – JSON search engine library▲6

    2017 · noisesearch.org · 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 →