OpenAPI Tools
@openapitools • A collection of tools for OpenAPI specifications. (NOTE: This organization is not affiliated with OpenAPI Initiative (OAI)). Use this route to separate flagship concentration from portfolio breadth before you treat a publisher as broadly strong.
Portfolio concentration
98%
Top three share
Shows whether the organization is driven by one breakout repo or several visible projects.
Breadth
17 repos
Visible snapshot
6 repositories updated in the last 90 days.
Leading language
Java
Portfolio mix
Java (8), Unknown (2), TypeScript (1)
Average size
1.8K
Stars per repository
Useful for distinguishing one flagship-heavy publisher from a repeatable portfolio.
Updated: 2026-02-03(213d ago)GitHub API fallback17 repositories
98%
of the visible star count comes from this organization's top three repositories.
1.8K
stars per repository in this same snapshot.
Java
is the most common language here, with 6 repositories updated in the last 90 days.
Why this rank
This organization stands out because one flagship repo drives 88% of its visible star count.
Flagship share 88%Breakout repo: openapi-generator
Organization pages work best when you separate portfolio breadth from flagship concentration. In OpenAPI Tools's case, the visible top three repositories account for about 98% of total stars in this snapshot, which helps explain whether the organization is known for one breakout project or for a broader repeatable portfolio.
The dominant language mix here is Java (8), Unknown (2), TypeScript (1). That makes this page useful not just for popularity checks, but also for seeing what technical shape an organization's public ecosystem actually has.
Top Repositories
| # | Repository | Language | Stars |
|---|---|---|---|
| 1 | openapitools/openapi-generator OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3) | Java | 26.7K |
| 2 | openapitools/openapi-generator-cli A node package wrapper for https://github.com/OpenAPITools/openapi-generator | TypeScript | 2K |
| 3 | openapitools/openapi-diff Utility for comparing two OpenAPI specifications. | Java | 1.1K |
| 4 | openapitools/openapi-style-validator A customizable style validator to make sure your OpenAPI spec follows your organization's standards. | Java | 237 |
| 5 | openapitools/jackson-databind-nullable JsonNullable wrapper class and Jackson module to support meaningful null values | Java | 152 |
| 6 | openapitools/openapi-generator-bazel Bazel plugin for OpenAPI Generator | Starlark | 74 |
| 7 | openapitools/openapi-petstore The pet store sample | Java | 53 |
| 8 | openapitools/sbt-openapi-generator | Scala | 43 |
| 9 | openapitools/openapi-generator-pip pip installer for OpenAPI Generator | Python | 30 |
| 10 | openapitools/swagger-parser Fork of swagger-api/swagger-parser | Java | 16 |
| 11 | openapitools/empoa Code (implementation, experiments, tools...) for the Eclipse MicroProfile OpenAPI project | Java | 11 |
| 12 | openapitools/openapi-json-schema-generator An unmaintained out of date version of this project | Java | 8 |
| 13 | openapitools/OpenAPITools.github.io OpenAPI Generator | HTML | 8 |
| 14 | openapitools/gen Common generator scripts for all client libraries | Shell | 5 |
| 15 | openapitools/art Art and related files | 2 | |
| 16 | openapitools/bazel-central-registry The central registry of Bazel modules for the Bzlmod external dependency system. | 1 | |
| 17 | openapitools/ruby Work in progress | Ruby | 1 |
Next step after the organization read
Open a flagship repository, compare a couple of portfolio leaders, or return to the organization map when you want a broader concentration read.
Learn and methodology
Keep trust-building context reachable, but behind the first data read instead of ahead of it.
How to read this organization snapshot
Total stars are useful as a discovery signal, but they do not tell you whether a team maintains every repository equally. Pair this page with release cadence, maintainer activity, and the flagship concentration shown above before making adoption decisions.
For broader background on GitStar's ranking logic and editorial guidance, see Methodology & Editorial Standards.