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Ophir
json.ophir.dev
JSONJoy Builder - Visual JSON Schema Editor
Visual JSON Schema editor for creating and manipulating JSON Schema definitions. Open source at https://github.com/lovasoa/jsonjoy-builder
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JSON Editor Online
jsoneditoronline.org
JSON Editor Online: edit JSON, format JSON, query JSON
There are various categories of JSON tools, each with their pros and cons. What is best to use depends on your use case. Open your JSON file in the editor. From the menu, select "Options", "JSON Schema".
Discussions

I built a beautiful open source JSON Schema builder
This is amazing, i like this. Althought i wish there was a full screen editor and also the validate json button seams to be broken. More on reddit.com
🌐 r/programming
8
March 29, 2025
JSON schema generator
I just searched google and these 2 popped up: JSON Schema Tool Free Online JSON to JSON Schema Converter Both seem to work fine More on reddit.com
🌐 r/vscode
4
17
September 20, 2021
Open Sourcing: JSON Schema Viewer by Atlassian (Beautiful docs from JSON Schema)
This tool looks like it could be useful if it was a library I could import and use. Having to manually link schemas to view their docs one by one through the site makes it a lot less useful imo (we have hundreds of different json schemas to describe the data for hundreds of different forms). But I'm guessing that might be the direction this is taking anyways and that this is mainly an MVP of sorts? More on reddit.com
🌐 r/programming
11
25
January 31, 2021
The Last Breaking Change | JSON Schema Blog
always fun to see the json guys struggling with the previous generation's xml issues. Not that I particularly like either, you understand, and honestly json is obviously less crushingly verbose, it's just amusing. People do seem to have to learn the hard way that a lot of the "complicated" stuff xml had was there for a reason. Wonder what format the next generation will be insisting is better that xml and json. https://en.wikipedia.org/wiki/Unique_Particle_Attribution https://lists.w3.org/Archives/Public/www-tag/2004Aug/att-0010/NRMVersioningProposal.html More on reddit.com
🌐 r/programming
270
529
March 5, 2023
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JSON Schema Validator
jsonschemavalidator.net
JSON Schema Validator - Newtonsoft
An online, interactive JSON Schema validator. Supports JSON Schema Draft 3, Draft 4, Draft 6, Draft 7, Draft 2019-09 and Draft 2020-12.
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Bjdash
bjdash.github.io β€Ί JSON-Schema-Builder
JSON Schema Builder
A simple GUI tool to enable designing and building JSON schemas.
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Liquid Technologies
liquid-technologies.com β€Ί online-json-to-schema-converter
Free Online JSON to JSON Schema Converter
Uses the sample JSON document to infer a JSON schema. The Free Community Edition of Liquid Studio comes with an advanced JSON Editor, packed with many helpful features including JSON schema creation.
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JSON Schema
json-schema.org β€Ί tools
JSON Schema - Tools
Toolings below are written in different languages, and support part, or all, of at least one recent version of the specification Β· Listing does not signify a recommendation or endorsement of any kind
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Reddit
reddit.com β€Ί r/programming β€Ί i built a beautiful open source json schema builder
r/programming on Reddit: I built a beautiful open source JSON Schema builder
March 29, 2025 - Announcing JSON::Schema::Validate: a lightweight, fast, 2020-12–compliant JSON Schema validator for Perl, with a mode for 'compiled' Perl and JavaScript
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JSON Crack
jsoncrack.com
JSON Crack | Online JSON Viewer - Transform your data into interactive graphs
Your data is never stored on our servers. Everything happens on your device. ... JSON Crack is an online JSON viewer tool designed to visualize and analyze various data formats, including JSON, YAML, CSV, XML and more.
Find elsewhere
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CodeSandbox
codesandbox.io β€Ί s β€Ί json-schema-editor-visual-ju1tu
json-schema-editor-visual - CodeSandbox
May 18, 2022 - CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.
Published Β  May 22, 2020
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Oxygen XML
oxygenxml.com β€Ί json_editor β€Ί json_schema_editor.html
JSON Schema Editor
Oxygen's specialized JSON Schema editor offers a range of features to enhance your JSON Schema editing experience. It includes Text, Grid, Author, and Design editing modes, along with a JSON Outline View, Syntax Highlighting, Search and Find Replace functionality, Drag and Drop capabilities, ...
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Tangramjs
json-schema-editor.tangramjs.com
JSON Schema Editor - About
JSON Editor is successor of JSON Schema Editor, which is a schema-aware editor for JSON document including JSON schema. It provides a tree view to present the structure of JSON document, user could manipulate the JSON from context menu. There is a text view to present the content of JSON document, ...
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CodeSandbox
codesandbox.io β€Ί s β€Ί json-schema-editor-s8yvx
json-schema-editor - CodeSandbox
September 11, 2019 - json-schema-editor by malcolm-kee using json-schema-editor-visual, react, react-dom, react-scripts
Published Β  Sep 11, 2019
Author Β  malcolm-kee
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Json-buddy
json-buddy.com β€Ί json-schema-editor.htm
JSON Schema editor for Windows
Generate documentation now Β» Β· Use JSONBuddy as your JSON Schema editor and validator to create and modify JSON definitions and to get access to additional features like JSON Pointer evaluation and validation of JSON schemas.
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JSON Schema
json-schema.org β€Ί learn β€Ί getting-started-step-by-step
Creating your first schema
All validators work in a similar way: they take a JSON Schema and a JSON Instance as input and they return the validation result as output. To try it yourself, please visit Tools and select the validator that best suits your needs, or use the editors available below to explore the different Schemas and Instances and see the different validation results.
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Transform
transform.tools β€Ί json-to-json-schema
JSON to JSON Schema
An online playground to convert JSON to JSON Schema
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TechnicalSEO
technicalseo.com β€Ί seo tools β€Ί schema generator
Schema Markup Generator (JSON-LD) | TechnicalSEO.com
A Schema.org structured data generator that supports the creation of JSON-LD markups. Including all of the required item properties and more.
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JSON Schema
json-schema.org
JSON Schema
Please visit the JSON Schema Landscape and discover more companies using JSON Schema Β· While JSON is probably the most popular format for exchanging data, JSON Schema is the vocabulary that enables JSON data consistency, validity, and interoperability at scale
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Swagger
editor.swagger.io
Swagger Editor
Swagger Editor's hosted version now focuses on streamlined editing. Looking for features like Codegen, snippet insertion, or saving APIs?