Life & fun · alternatives · 2026

24 alternatives to Pretty print invalid JSON (or anything that looks sort of like JSON)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Pretty print invalid JSON (or anything that looks sort of like JSON) launched in 2021; newer entries below may have overtaken it.

1
JSONverify▲92
A web tool that validates and format JSON objects
2021 · jsonverify.com · its alternatives →
2
JSON Pretty Print▲8
For JSON Lovers
2017 · jsonformatter.org · its alternatives →
3
JSON Generator▲139
Create mock and sample JSON using a powerful template syntax
2014 · json-generator.com · its alternatives →
4RJ
Repair JSON▲7
2021 · repair-json.vercel.app · its alternatives →
5
Weird JSON superset with BigInt, Infinity, TypedArray etc▲67
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 →
6
Generate JSON▲77
AI-generated dummy JSON - deploy in seconds
2023 · jsonviewer.stack.hu · its alternatives →
7JP
JSON Pizza – Beautify your JSON quickly▲112
Prettify, inspect and share your JSON data.
2019 · json.pizza · its alternatives →
8
Format JSON▲2
Paste ugly, copy pretty
May 2026 · format-json.net · its alternatives →
9
OK JSON▲104
The ultimate JSON formatter for your Mac
2023 · okjson.app · its alternatives →
10
OK JSON▲113
Format and view JSON with native Mac app
2021 · okjson.app · its alternatives →
11IM
I made a tool which fixes broken JSONs▲29
2024 · prakhar897.github.io · its alternatives →
12
JSON Crack▲70
Simple visualization tool for your JSON data.
2022 · jsoncrack.com · its alternatives →
13
Weird JSON▲19
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
2022 · github.com · its alternatives →
14
JSON tool▲3
Sometimes we just want to have a formatted JSON string.
2022 · snapcraft.io · its alternatives →
15
Recast Pro▲1
Messy AI output → clean, valid, explained JSON
Aug 2026 · recast-indol.vercel.app · its alternatives →
16
JSON Formatter Online▲7
Free json formatter & validator online
2025 · json-formatter-new.vercel.app · its alternatives →
17
JSON Parser▲8
Awesome way to view JSON.
2018 · jsonformatter.org · its alternatives →
18
JSON Kit▲10
Fix broken AI JSON and 6 more JSON tools, all in-browser
May 2026 · jsonkit.co · its alternatives →
19
JSONBason▲15
I'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 →
20JE
JSON Editor for macOS▲5
2022 · theapiscout.com · its alternatives →
21
Free JSON formatter & validator▲7
Format, validate and beautify json
2025 · formatjsononline.com · its alternatives →
22AS
A Super Simple JSON CMS▲8
2018 · medium.com · its alternatives →
23
jsonhome▲17
Format, validate, compare json online
2024 · jsonhome.com · its alternatives →
24
jsonalign.pro▲14
Beautify, format, and align JSON instantly 100% free online.
2025 · jsonalign.pro · 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 →