Summarising the other answers, here are the JSON schema generators proposed so far:
Online:
- https://www.liquid-technologies.com/online-json-to-schema-converter (1 input)
- http://www.jsonschema.net (1 input)
- https://easy-json-schema.github.io (1 input)
- https://json.ophir.dev/ (1 input, nice UI)
Python:
- https://github.com/gonvaled/jskemator (1 input but allows iteration)
- https://github.com/perenecabuto/json_schema_generator (1 input)
- https://github.com/rnd0101/json_schema_inferencer (1 input I think)
- https://pypi.python.org/pypi/genson/ (multiple inputs)
- https://pypi.python.org/pypi/skinfer (multiple inputs)
NodeJS:
- https://github.com/Nijikokun/generate-schema (multiple inputs (pass object array))
- https://github.com/easy-json-schema/easy-json-schema (1 input)
- https://github.com/aspecto-io/genson-js (multiple inputs)
Ruby:
- https://github.com/maxlinc/json-schema-generator (1 input)
Liquid Technologies
liquid-technologies.com › online-json-to-schema-converter
Free Online JSON to JSON Schema Converter
Uses the sample JSON document to infer a JSON schema
QuickType
quicktype.io › schema
JSON to JSON Schema
Instantly generate JSON Schema models from JSON.
validation - Tool to generate JSON schema from JSON data - Stack Overflow
We have this json schema draft. I would like to get a sample of my JSON data and generate a skeleton for the JSON schema, that I can rework manually, adding things like description, required, etc, ... More on stackoverflow.com
Did anybody use the json schema for code generation?
Hi, After spending hours trying to convince various tools/projects to generate source code from the openehr json schemas, I finally gave up. The schemas are truly extensive, a huge amount of work must have gone into these, so thanks a lot to Code24 for the initial effort and all the other ... More on discourse.openehr.org
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October 23, 2020JSON Schema generator
I’ve been using https://github.com/deepmap/oapi-codegen for this exact purpose as I found it to be the most robust. You need to convert the schemas to OpenAPI specs first though (IIRC there are tools for that) and make sure to use the correct parameters with oapi-codegen. It’s not fantastic, but it does work very well for our use case. More on reddit.com
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2
February 8, 2023JSON 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
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17
September 18, 2021Videos
Transform
transform.tools › json-to-json-schema
JSON to JSON Schema
An online playground to convert JSON to JSON Schema
npm
npmjs.com › package › prisma-json-schema-generator
prisma-json-schema-generator - npm
June 22, 2024 - A generator, which takes a Prisma 2 schema.prisma and generates a JSON Schema in version 7 of the specification (https://json-schema.org/).
» npm install prisma-json-schema-generator
Published Jun 22, 2024
Version 5.1.5
Author Valentin Palkovic
Objgen
objgen.com › json
JSON Generator
You need to enable JavaScript to run this app
Top answer 1 of 12
188
Summarising the other answers, here are the JSON schema generators proposed so far:
Online:
- https://www.liquid-technologies.com/online-json-to-schema-converter (1 input)
- http://www.jsonschema.net (1 input)
- https://easy-json-schema.github.io (1 input)
- https://json.ophir.dev/ (1 input, nice UI)
Python:
- https://github.com/gonvaled/jskemator (1 input but allows iteration)
- https://github.com/perenecabuto/json_schema_generator (1 input)
- https://github.com/rnd0101/json_schema_inferencer (1 input I think)
- https://pypi.python.org/pypi/genson/ (multiple inputs)
- https://pypi.python.org/pypi/skinfer (multiple inputs)
NodeJS:
- https://github.com/Nijikokun/generate-schema (multiple inputs (pass object array))
- https://github.com/easy-json-schema/easy-json-schema (1 input)
- https://github.com/aspecto-io/genson-js (multiple inputs)
Ruby:
- https://github.com/maxlinc/json-schema-generator (1 input)
2 of 12
101
You might be looking for this:
http://www.jsonschema.net
It is an online tool that can automatically generate JSON schema from JSON string. And you can edit the schema easily.
JSON Schema
json-schema.org › 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 · Listing does not signify a recommendation or endorsement of any kind
GitHub
github.com › vega › ts-json-schema-generator
GitHub - vega/ts-json-schema-generator: Generate JSON schema from your Typescript sources · GitHub
-p, --path <path> Source file path -t, --type <name> Type name -i, --id <name> $id for generated schema -f, --tsconfig <path> Custom tsconfig.json path -e, --expose <expose> Type exposing (choices: "all", "none", "export", default: "export") -j, --jsDoc <extended> Read JsDoc annotations (choices: "none", "basic", "extended", default: "extended") --markdown-description Generate `markdownDescription` in addition to `description`. --full-description Include the full raw JSDoc comment as `fullDescription` in the schema.
Starred by 1.7K users
Forked by 230 users
Languages TypeScript 99.4% | JavaScript 0.6%
TechnicalSEO
technicalseo.com › seo tools › 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.
Newtonsoft
newtonsoft.com › jsonschema › help › html › GenerateSchema.htm
Generate JSON Schema
JSchemaGenerator generator = new JSchemaGenerator(); JSchema schema = generator.Generate(typeof(Person)); // { // "type": "object", // "properties": { // "Name": { // "type": [ "string", "null" ] // }, // "Age": { "type": "integer" } // }, // "required": [ "Name", "Age" ] // }
openEHR
discourse.openehr.org › implementation
Did anybody use the json schema for code generation? - Implementation - openEHR
October 23, 2020 - Hi, After spending hours trying to convince various tools/projects to generate source code from the openehr json schemas, I finally gave up. The schemas are truly extensive, a huge amount of work must have gone into these, so thanks a lot to Code24 for the initial effort and all the other contributors who brought the schemas to their current state.
JSONLint
jsonlint.com › json-schema-generator
JSON Schema Generator - Create Schema from JSON Online | JSONLint | JSONLint
Generate JSON Schema from sample JSON data. Auto-detect formats (email, date, URI), set required fields, and export valid JSON Schema draft 2020-12.
JSON Schema
json-schema.org
JSON Schema
Discover JSON Schema tooling to help your organization leverage the benefits of JSON Schema. Because JSON Schema is much more than a Specification, it is a vibrant ecosystem of Validators, Generators, Linters, and other JSON Schema Utilities made by this amazing Community.Explore
JSON Formatter
jsonformatter.org › json-to-jsonschema
Best JSON to Jsonschema Converter
JSON to Jsonschema Online with https and easiest way to convert JSON to Jsonschema. Save online and Share.
Upqode
upqode.com › home › json schema generator tools: user guide 2021
JSON Schema Generator Tools: User Guide 2021 - Web Design Agency - Upqode
August 12, 2025 - The tool is simple to use, and it supports the latest schema draft 07. With this tool, you can generate a JSON schema from your file or an example from the JSON validator.
Stoplight
stoplight.io › json-guide
JSON Schema & Validator | JSON Generator & Editor Guide | Stoplight
Let's look at what keywords can make up a JSON Schema file. JSON Schema files often start with the following metadata keywords:
Json2CSharp
json2csharp.com
Convert JSON to C# Classes Online - Json2CSharp Toolkit
JSON: { 'test' : 'test'} C#: [JsonPropertyName("test")] public string test { get; set; } Class Settings · Generate Immutable Classes · Creates readonly classes that are instantiated using the class constructor. JSON: { 'test' : 'test'} C#: public Root( string test) { this.test = test; } public string test { get; } Use Record Types ·
Js
json-schema-faker.js.org
JSON Schema Faker – Generate Realistic Test Data
Control generation with command-line flags. # Deterministic output with seed jsf schema.json --seed 42 # Include all optional properties jsf schema.json --all-optionals # Override array/string constraints jsf schema.json --min-items 5 --max-length 20 # Use schema defaults and examples jsf schema.json --use-defaults --use-examples # Read from stdin cat schema.json | jsf - # Combine options jsf schema.json -o output.json -c 5 --seed 42
JSON Schema
json-schema.org › learn › getting-started-step-by-step
Creating your first schema
The most basic schema is a blank JSON object, which constrains nothing, allows anything, and describes nothing: ... By adding validation keywords to the schema, you can apply constraints to an instance.
json-everything
docs.json-everything.net › schema › schemagen › schema-generation
Generating JSON Schema from .Net Types | json-everything
2 days ago - JsonSchema.Net.Generation is an extension package to JsonSchema.Net that provides JSON Schema generation from .Net types.