Dev tools · alternatives · 2026
24 alternatives to JustJSON, front end framework using only JSON
In the spirit of Halloween, I'm excited to bring one of my evil ideas to life. Introducing JustJSON - the best frontend framework based on the best file format.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. JustJSON, front end framework using only JSON launched in 2024; newer entries below may have overtaken it.
- 1
JSON extended with pure functions. Contribute to VictorTaelin/LJSON development by creating an account on GitHub.
2015 · github.com · its alternatives →
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- 3
- 4
- 5
JSON5 — JSON for Humans. Contribute to json5/json5 development by creating an account on GitHub.
2012 · github.com · its alternatives →
- 6
Quickly formats JSON with a simple right click, no copy
2023 · chromewebstore.google.com · its alternatives →
- 7
Effortless JSON Editing, Anywhere!
2023 · chromewebstore.google.com · its alternatives →
- 8
the JS/Node.JS library for encoding complex and unconventional data structures. Support for BigInts, TypedArrays, null, undefined, and Symbol. Multiple flavors available. - DO-SAY-GO/WeirdJSON
2020 · github.com · its alternatives →
- 9
2014 · journal.paul.querna.org · its alternatives →
- 10
The ultimate browser-based JSON toolkit. Format, validate, minify, view, and convert JSON online with zero server uploads and 100% offline privacy.
4d ago · instantjsonformatter.com · its alternatives →
- 11JA
2016 · json-script.com · its alternatives →
- 12
Efficient JSON editing with one-click formatting & search
2025 · its alternatives →
- 13
An MIT-licensed human-friendly extension of JSON with quality-of-life improvements (comments, trailing commas, unquoted keys), extra types (tuples, bytes, raw strings), and semantic identifiers (think type annotations). Built in Rust, with bindings for Python and WebAssembly, as well as syntax highlighting in VSCode. I made it for those like me who hand-edit JSONs and want a breath of fresh air. It's at a good enough point that I felt like sharing it, but there's still plenty I wanna work on! Namely, I want to add (real) Node support, make a proper LSP with auto-formatting, and get it out…
Nov 2025 · duper.dev.br · its alternatives →
- 14CP
2015 · consolejson.com · its alternatives →
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50+ free JSON tools that run entirely in your browser
Jun 2026 · mergejsonfiles.com · its alternatives →
- 18
JSONKit▲447 free JSON tools — all in your browser, zero uploads
Jun 2026 · jsonkit.in · its alternatives →
- 19
PJSON.live▲15Format, validate & convert json to typescript instantly
Nov 2025 · pjson.live · its alternatives →
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Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection - valyala/fastjson
2018 · github.com · its alternatives →
- 22
JSONBason▲15I've been at it again, just sharing my simple JSON data inspection tool, love webdev and single page apps, this one took 4 days and was a lot of fun. The code is not obfuscated so you can inspect it and see how it works (very simple, server side is even more simple) Pretty much just do a POST of your JSON data from within your code and it will convert it into a basic table for instant search and sort. Made with love for the fun of it, no ads, no paid anything, it's totally free. Please only send in sanitized/test data only, this is meant to help make webdev a bit easier and more fun.…
2025 · jsonbason.com · its alternatives →
- 23
2015 · openbucket.io · its alternatives →
- 24
Fast, direct and static typed parsing of JSON with C++ - netheril96/StaticJSON
2016 · github.com · its alternatives →
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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 →