Dev tools · alternatives · 2026

Jsonic is a Python development tool for JSON serialization. It provides functionality to convert Python objects into JSON format and back. The tool is designed for developers who work with JSON data regularly and need… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Jsonic — Fast Private JSON Tools▲2

   JSON tools that never see your data

   Apr 2026 · jsonic.io · its alternatives →

2. 2
   a small weekendish project - JSON Blob▲106

   2013 · jsonblob.com · its alternatives →

3. 3
   Jb / json.bash – Command-line tool (and bash library) that creates JSON▲183

   jb is a UNIX tool that creates JSON, for shell scripts or interactive use. Its "one thing" is to get shell-native data (environment variables, files, program output) to somewhere else, using JSON encapsulate it robustly. I wrote this because I wanted a robust and ergonomic way to create ad-hoc JSON data from the command line and scripts. I wanted errors to not pass silently, not coerce data types, not put secrets into argv. I wanted to leverage shell features/patterns like process substitution, environment variables, reading/streaming from files and null-terminated data. If you…

   2024 · github.com · its alternatives →

4. 4JI
   JSON.is▲100

   2016 · json.is · its alternatives →

5. 5
   JSON Crack▲70

   Simple visualization tool for your JSON data.

   2022 · jsoncrack.com · its alternatives →

6. 6GJ
   Generate JSON mock data for testing/initial app development▲103

   Easily create complex JSON data structures using intuitive templates.

   2023 · jsongenerator.io · its alternatives →

7. 7
   JSONverify▲92

   A web tool that validates and format JSON objects

   2021 · jsonverify.com · its alternatives →

8. 8
   Python JSON library in Rust, faster than ujson▲40

   Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy - ijl/orjson

   2018 · github.com · its alternatives →

9. 9
   OK JSON▲104

   The ultimate JSON formatter for your Mac

   2023 · okjson.app · its alternatives →

10. 10
    jql – Easier jq Alternative with a Lispy Syntax Written in Go▲217

    Easy JSON Query Processor with a Lispy syntax in Go - cube2222/jql

    2020 · github.com · its alternatives →

11. 11
    OK JSON▲113

    Format and view JSON with native Mac app

    2021 · okjson.app · its alternatives →

12. 12
    JSON Query▲154

    I'm working on a tool that will probably involve querying JSON documents and I'm asking myself how to expose that functionality to my users. I like the power of `jq` and the fact that LLMs are proficient at it, but I find it right out impossible to come up with the right `jq` incantations myself. Has anyone here been in a similar situation? Which tool / language did you end up exposing to your users?

    Oct 2025 · jsonquerylang.org · its alternatives →

13. 13
    JSON Sharp▲73

    Tool for lazy developers to convert JSON to C# Objects

    2020 · jsontocsharpconverter.web.app · its alternatives →

14. 14JB
    JSON Browse – Fetch, filter and manipulate your JSON inside the browser▲138

    2017 · jsonbrowse.com · its alternatives →

15. 15JA
    JSONScript – Asynchronous scripting language using JSON format▲49

    2016 · json-script.com · its alternatives →

16. 16
    GPT-JSON – Structured and typehinted GPT responses in Python▲174

    Hey HN, I've been using GPT a lot lately in some side projects around data generation and benchmarking. During the course of prompt tuning I ended up with a pretty complicated request: the value that I was looking for, an explanation, a criticism, etc. JSON was the most natural output format for this but results would often be broken, have wrong types, or contain missing fields. There's been some positive movement in this space, like with jsonformer (https://github.com/1rgs/jsonformer) the other day. But nothing that was plug and play with GPT. This library consolidates…

    2023 · github.com · its alternatives →

17. 17KA
    Kim – A Python serialization and marshaling framework▲136

    2017 · kim.readthedocs.io · its alternatives →

18. 18JP
    JSON Pizza – Beautify your JSON quickly▲112

    Prettify, inspect and share your JSON data.

    2019 · json.pizza · its alternatives →

19. 19
    Jason – A new JSON Library for Go▲106

    Easy-to-use JSON Library for Go. Contribute to antonholmquist/jason development by creating an account on GitHub.

    2014 · github.com · its alternatives →

20. 20JI
    Jq-in-the-browser -– jq compatible JSON processor in JavaScript▲15

    JSON processor for web use (jq port)

    2018 · kantord.github.io · its alternatives →

21. 21
    JSON5 — modern JSON▲64

    JSON5 — JSON for Humans. Contribute to json5/json5 development by creating an account on GitHub.

    2012 · github.com · its alternatives →

22. 22
    Command-line JSON processing tool▲32

    Terminal JSON viewer & processor. Contribute to antonmedv/fx development by creating an account on GitHub.

    2018 · github.com · its alternatives →

23. 23
    Write JSON processor queries (jq) in natural language▲38

    Hey HN! Jaiqu is an AI agent for creating repeatable JSON transforms using jq query language syntax. Jaiqu translates complex JSON structures into repeatable jq queries. jq is a command line utility built for fast, reliable JSON queries. Jaiqu takes advantage of the LLMs for both constructing jq queries as well as using feedback to fix errors/invalid results if those queries are incorrect. Writing code to parse JSON is super annoying. It usually involves manually reading huge JSON balls, parsing the keys in a language of your choice, and pulling the data manually. Also, you're likely to…

    2024 · github.com · its alternatives →

24. 24
    Dbcopycat▲70

    Dynamicizing static json files with Node Js - fast json data

    2023 · ismailcankaratas.com.tr · 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 →