quicktype

quicktype is ranked #5 of 28 in code generators on The Geeks Club. It runs on API, Linux, macOS, Web, Windows. There is a free plan. Paid plans start at $19/mo.

quicktype plans and pricing

All plans

FREE Free Web app + CLI · Community Slack · Apache2 license next.quicktype.io · 30 Sept 2026

1 target language $19/mo Billed annually Email support · 30 min. technical planning next.quicktype.io · 30 Sept 2026

2 target languages $129/mo Chat support · 7-day hotfixes · 2 hr. technical planning next.quicktype.io · 30 Sept 2026

Compared on code generators

Free plan: Yes
Project scaffolding: No
Schema-to-code generation: Yes
CLI available: Yes
IDE plugins: Yes
Supported languages: C, C#, C++, Crystal, Dart, Effect Schema, Elixir, Elm, Flow, Go, GraphQL, Haskell, Java, JavaScript, JSON Schema, Kotlin, Objective-C, PHP, Pike, Python, Ruby, Rust, Scala, Smithy, Swift, TypeScript, Zod

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quicktype

Purpose: quicktype infers types from JSON and generates models, serializers, and validators in more than 25 languages.
Inputs: It accepts sample JSON, API URLs, JSON Schema, and GraphQL queries.
Inference: It can infer nullability, optional fields, numeric types, dates, UUIDs, enums, unions, maps, and nested type names.
Code output: Generated output can include serializers and runtime validation code along with types.
Browser use: The product offers a browser app for pasting JSON and generating code.
CLI: The CLI can generate code from files, URLs, or standard input and can be used in a build pipeline, CI job, or git hook.
MCP integration: A hosted MCP endpoint connects quicktype to Claude Code, Cursor, Codex, or any MCP client without an API key.
MCP endpoint: The MCP server URL is https://mcp.quicktype.io/mcp.
Open source: The GitHub repository identifies quicktype as open source under the Apache-2.0 license.
Offline and privacy: The GitHub README says the web app works offline and does not send sample data over the Internet.
CLI requirement: The CLI and Node.js packages require Node.js 20 or newer.
Who it serves: The site describes using generated types to help teams build API clients, catch API changes, and give IDEs and AI agents a typed model of data.
What it does: quicktype infers types from JSON and generates models, serializers, and validators in more than 25 languages.
Supported inputs: quicktype accepts sample JSON, API URLs, JSON Schema, TypeScript, and GraphQL queries.
Price from: $19/mo

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Where it ranks on The Geeks Club

Best Code Generators in 2026#5 of 28

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Sources

quicktype.io· checked 30 Sept 2026
mcp.quicktype.io· checked 30 Sept 2026
github.com/glideapps/quicktype· checked 30 Sept 2026
next.quicktype.io· checked 30 Sept 2026