OpenAPI Generator vs GraphQL Code Generator

OpenAPI Generator9.3Visit GraphQL Code Generator8.4Visit

Higher score OpenAPI Generator #1 in Code Generators 9.3/10 Free plan Free plan✓ 5 of 5 features Visit site

vs

GraphQL Code Generator #8 in Code Generators 8.4/10 Free plan Free plan✓ 5 of 5 features Visit Code Generator

• OpenAPI Generator fits best

  Broad multi-language API generation

• GraphQL Code Generator fits best

  GraphQL teams needing broad typed output

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Side by side

Feature	OpenAPI Generator 9.3/10 Visit ↗	GraphQL Code Generator 8.4/10 Visit ↗
At a glance
Editor score	9.3	8.4
Ranking	#1 in Code Generators	#8 in Code Generators
Best for	Broad multi-language API generation	GraphQL teams needing broad typed output
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Support	Community, Docs	Docs
Integrations	10 integrations	13 integrations
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features OpenAPI Generator 5/5 · GraphQL Code Generator 5/5
Project scaffolding	✓	✓
Custom templates	✓	✓
Schema-to-code generation	✓	✓
CLI available	✓	✓
IDE plugins	✓	✓
Specs
Supported languages	ActionScript, Ada, Apex, Bash, C, C#, C++, Clojure, Crystal, Dart, Elixir, Elm, Eiffel, Erlang, F#, Go, Groovy, Haskell, Java, JavaScript, Julia, Kotlin, Lua, Nim, Objective-C, OCaml, Perl, PHP, PowerShell, Python, R, Ruby, Rust, Scala, Swift, TypeScript, Xojo	TypeScript, Flow, Java, C#, Dart, Reason, Swift, Kotlin
Our review
Pros	Generates clients, server stubs, documentation, schemas, and configuration outputs Supports a wide range of languages, including Java, Python, Go, Rust, and TypeScript Fits Maven, Gradle, Bazel, GitHub, CI/CD, npm, Docker, and other workflows	Generates typed clients, resolvers, SDKs, documents, and schema artifacts Provides 51 plugins, presets, custom plugins, and custom templates Supports watch mode, a CLI wizard, and a programmatic API
Cons	Requires OpenAPI 2.0 or 3.x documents as the generation input Advanced output changes may require user-defined templates or custom generators Its broad generator range may require evaluation to choose the right output	Requires configuration through selected plugins, presets, or templates Its focus is GraphQL schema and operation workflows Broad output options may require project-specific decisions
Our verdict	OpenAPI Generator is an open-source code-generation toolkit for developers and API teams working from OpenAPI 2.0 and 3.x documents. It can produce API client libraries, server stubs, documentation, configuration files, and schemas. The… Read the review →	GraphQL Code Generator is an open-source, plugin-based tool for generating typed code from GraphQL schemas and operations. It is aimed at frontend and backend teams that need typed queries, mutations, subscriptions, fragments, resolvers,… Read the review →

Strengths and trade-offs

• OpenAPI Generator — where it wins

  • Generates clients, server stubs, documentation, schemas, and configuration outputs
  • Supports a wide range of languages, including Java, Python, Go, Rust, and TypeScript
  • Fits Maven, Gradle, Bazel, GitHub, CI/CD, npm, Docker, and other workflows

  Where it doesn't

  • Requires OpenAPI 2.0 or 3.x documents as the generation input
  • Advanced output changes may require user-defined templates or custom generators
  • Its broad generator range may require evaluation to choose the right output

• GraphQL Code Generator — where it wins

  • Generates typed clients, resolvers, SDKs, documents, and schema artifacts
  • Provides 51 plugins, presets, custom plugins, and custom templates
  • Supports watch mode, a CLI wizard, and a programmatic API

  Where it doesn't

  • Requires configuration through selected plugins, presets, or templates
  • Its focus is GraphQL schema and operation workflows
  • Broad output options may require project-specific decisions

• OpenAPI Generator9.3/10 · Free plan

  A flexible open-source toolkit for multi-language API generation and workflow integration.

  Visit siteFull verdict →
• GraphQL Code Generator8.4/10 · Free plan

  A free, open-source generator for typed GraphQL clients, resolvers, SDKs, and documents.

  Visit Code GeneratorFull verdict →