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Dev tools · alternatives · 2026

24 alternatives to Quicktype – it's like Uber, but for JSON

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

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Quicktype – it's like Uber, but for JSON launched in 2017; newer entries below may have overtaken it.

  1. 1

    Generate beautiful, typesafe code from data

    2018 · quicktype.io · its alternatives →

  2. 2
  3. 3

    Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson

    2019 · github.com · its alternatives →

  4. 4

    Types generator will auto generate TS Interfaces from JSON

    2022 · vineethtrv.github.io · its alternatives →

  5. 5

    Build Typed GraphQL Queries in TypeScript without the code generation - acro5piano/typed-graphqlify

    2018 · github.com · its alternatives →

  6. 6

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

    2014 · github.com · its alternatives →

  7. 7

    Hello all To preface this is just something I've been making as a learning exercise, so all feedback is appreciated. This is a tool that converts JSON schemas into TypeScript utility classes for use in Deno. Automatic Type Generation: Typescript interfaces for the compressed and uncompressed versions of your data. Compression & Decompression: Compress and decompress your data. Validation: Built-in data validation using Ajv ensures your data adheres to the schema. Reusability: Once generated, the utility classes can be used in other Deno projects. It currently only supports a subset of JSON…

    2023 · github.com · its alternatives →

  8. 8

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

    2021 · github.com · its alternatives →

  9. 9

    Instantly generate openapi (OAS) 3.0.0 REST + GraphQL APIs

    2019 · github.com · its alternatives →

  10. 10

    Hi Hacker News! My name is Sagar, I’m working on a startup called Speakeasy - we’re making all APIs self-service. The platform is currently in beta, but we’re independently launching this tool which you can use to generate language-idiomatic, statically-typed TS SDKs from any public OpenAPI schemas. We hope to continue iterating on this to give devs a way to easily generate high fidelity client SDKs for all the major languages. Inspiration for this product is from past experiences struggling with OpenAPI. I was originally optimistic about using the OpenAPI tools to build out our offering,…

    2022 · easysdk.xyz · its alternatives →

  11. 11

    SQL micro-dialect implementation for querying JSON objects. Written purely in Scala. - mmalek06/JsonSql

    2020 · github.com · its alternatives →

  12. 12GJ

    Easily create complex JSON data structures using intuitive templates.

    2023 · jsongenerator.io · its alternatives →

  13. 13

    Instant JSON to Type, Schema & Model for 20+ languages.

    Apr 2026 · mocktype.netlify.app · its alternatives →

  14. 14

    Compile JSON Schema to TypeScript type declarations - bcherny/json-schema-to-typescript

    2017 · github.com · its alternatives →

  15. 15

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

    2018 · github.com · its alternatives →

  16. 16

    Let JSON play nicely with Typescript. Contribute to ostrowr/ts-json-validator development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  17. 17

    GraphQL APIs in TypeScript with complete e2e type safety

    2021 · uniform-graphql.whatsgood.dog · its alternatives →

  18. 18GD

    We're a team of three friends who have been working with forms and Open Source for a decade, and we joined forces together to create something where we can apply all of our experience. We recently released GolemUI, an Open Source library to generate forms dynamically from JSON definitions, with a typed layer to simplify authoring. This library has a lot to offer. These are the main characteristics: 1. A JSON engine. The form is governed by a JSON definition that you can store in a DB, version, diff, or generate it with LLMs as a validated JSON. 2. We provide also 28 headless components (and…

    Jul 2026 · golemui.com · its alternatives →

  19. 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

    2020 · github.com · its alternatives →

  20. 20

    Quickly formats JSON with a simple right click, no copy

    2023 · chromewebstore.google.com · its alternatives →

  21. 21

    Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection - valyala/fastjson

    2018 · github.com · its alternatives →

  22. 22

    crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects

    2020 · crates.io · its alternatives →

  23. 23IC

    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 →

  24. 24
    Valibot▲37

    The 1 kB schema library for TypeScript

    2025 · valibot.dev · 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 →