Dev tools · alternatives · 2026
24 alternatives to My first open-source project release – RandomJson
Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson
RandomJson is a developer tool that generates random JSON data. It's designed for software developers who need sample data for testing and development purposes. The tool is open-source and available on GitHub, making… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. My first open-source project release – RandomJson launched in 2019; newer entries below may have overtaken it.
- 1GJ
Easily create complex JSON data structures using intuitive templates.
2023 · jsongenerator.io · its alternatives →
- 2
ForewordJavalin is a Java and Kotlin web framework which focuses on simplicity and Java/Kotlin interoperability.It supports WebSockets and HTTP3, and it uses...
2022 · javalin.io · its alternatives →
- 3
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 →
- 4JA
a lightweight dependency free javascript micro-library for making collapsable trees with JSON
2017 · maxleiter.github.io · its alternatives →
- 5
Easy-to-use JSON Library for Go. Contribute to antonholmquist/jason development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 6
Weird JSON▲19the 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 →
- 7
Pollux▲82Fake json data & json server mock API generator with JWT
2021 · mohammedal-rowad.github.io · its alternatives →
- 8
JSON Generator▲139Create mock and sample JSON using a powerful template syntax
2014 · json-generator.com · its alternatives →
- 9
JSON5 — JSON for Humans. Contribute to json5/json5 development by creating an account on GitHub.
2012 · github.com · its alternatives →
- 10
Millions of developers have used quicktype to generate ten billion lines of typesafe models, serializers, and validators from JSON, JSON Schema, and GraphQL in TypeScript, Python, Swift, C#, Go, Rust, Kotlin, Java, C++, Zod and more. Use it in the browser, from the command line, or give it to your A
2017 · quicktype.io · its alternatives →
- 11
Yehuda's start as a programmer and the spec for building API
2016 · changelog.com · its alternatives →
- 12
AI-generated dummy JSON - deploy in seconds
2023 · jsonviewer.stack.hu · its alternatives →
- 13
Setting up Heroku apps made easy. Contribute to rainforestapp/heroku.json development by creating an account on GitHub.
2013 · github.com · its alternatives →
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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 →
- 16
The missing JavaScript randomness library. Contribute to ChrisCavs/aimless.js development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 17
Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection - valyala/fastjson
2018 · github.com · its alternatives →
- 18IC
Hi HN, I’m Joan, the developer of Quicklang. I made this app to easily translate and keep in sync all my localization JSON files for my side projects. While searching online for a similar tool, I only found enterprise solutions that do not allow direct editing of JSON files. I used to use ChatGPT to translate the JSON translation file changes before coding Quicklang. However, I realized that ChatGPT only allows you to input short content for translation into another language (even if you provide a .json file), and each time I had to request translations for one language at a time. So, I…
2024 · quicklang.app · its alternatives →
- 19
JSONKit▲447 free JSON tools — all in your browser, zero uploads
Jun 2026 · jsonkit.in · its alternatives →
- 20RB
2011 · random-inc5000.herokuapp.com · its alternatives →
- 21
Modern Developer Toolkit
Jan 2026 · jsonplayground.online · its alternatives →
- 22
Tool for generating random dummy GeoJSON data for testing
2020 · its alternatives →
- 23
Hey HN! I wanted to share a chrome extension I built for myself called From Chaos. It's an extension that takes the content of the page and organizes it into structured data. For instance, taking all the restaurants on a "top 10" article and just returning their names. It requires an OpenAI API key that you can set in your settings, and lets you get data back as JSON, YAML, CSV, or plain text. I built it to help in my data-gathering efforts, but wanted to share in case it's useful to someone else as well! It doesn't always return perfect data, but it does save me quite a bit of time.
2023 · chrome.google.com · its alternatives →
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JSONNinja – A Next‑Gen JSON Viewer for Developers
2025 · v2.jsonninja.tools · its alternatives →
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- Jason – A new JSON Library for Go alternatives
- Weird JSON 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 →