OpenAPITools/openapi-diff

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Utility for comparing two OpenAPI specifications.

Stars: 1.1k
Forks: 190
Open beginner issues: 0
Indexed issues: 69

Dominant language: Java
License: Apache-2.0
Last GitHub push: Aug 5, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

69 open issues indexed

Evaluate using JReleaser Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenAPITools/openapi-diff#309 · Opened Dec 27, 2021
References are not resolved according to RFC3986 Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenAPITools/openapi-diff#272 · 5 comments · Opened Oct 14, 2021
Wrong changelog generated when having objects with same field name Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenAPITools/openapi-diff#268 · 4 comments · 2 reactions · Opened Oct 6, 2021
Adding a new optional property to the request/response body is considered backward incompatible. Open

Breaking/Non-Breaking classification

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenAPITools/openapi-diff#264 · 5 comments · Opened Sep 24, 2021
Version identifiers in paths Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenAPITools/openapi-diff#253 · 3 comments · 1 reaction · Opened Jul 28, 2021
PUT new attribute backwards compatibility optional Open

Breaking/Non-Breaking classification question

Difficulty 5/5 Over a week Newbie friendliness 30/100

OpenAPITools/openapi-diff#251 · 4 reactions · Opened Jul 22, 2021
false positive for type if only the format is changed. Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

OpenAPITools/openapi-diff#248 · 2 comments · 3 reactions · Opened Jul 13, 2021
Doesn't detect/render additions to the API Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

OpenAPITools/openapi-diff#230 · 1 comment · Opened May 11, 2021
HtmlRender reports far less informations than MarkdownRender Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

OpenAPITools/openapi-diff#215 · 2 comments · Opened Feb 5, 2021
Show additions / changes to schema body Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

OpenAPITools/openapi-diff#207 · 4 comments · 4 reactions · Opened Jan 13, 2021
Refactoring a schma with "$ref" results in false positive breaking change Open

Breaking/Non-Breaking classification help wanted

Difficulty 4/5 3-5 days Newbie friendliness 40/100

OpenAPITools/openapi-diff#192 · 1 comment · 14 reactions · Opened Oct 23, 2020
Add official Github action for openapi-diff Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenAPITools/openapi-diff#186 · 4 comments · 20 reactions · Opened Oct 16, 2020
Reference resolved against wrong components. Open

Still Valid?

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenAPITools/openapi-diff#139 · 1 comment · Opened Mar 27, 2020
Add documentation for detectable breaking/non-breaking changes Open

Breaking/Non-Breaking classification enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenAPITools/openapi-diff#138 · 1 comment · 6 reactions · Opened Mar 26, 2020
Adding option to ignore user specified changes Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

OpenAPITools/openapi-diff#129 · 2 comments · Opened Feb 3, 2020
Stackoverflow error with cyclic references involving allOf Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

OpenAPITools/openapi-diff#124 · 1 comment · 6 reactions · Opened Jan 16, 2020
Fully support additionalProperties in schema Open

enhancement Still Valid?

Difficulty 3/5 1-2 days Newbie friendliness 35/100

OpenAPITools/openapi-diff#32 · 1 comment · 1 reaction · Opened Mar 19, 2018
Introduce check concept from "Azure/openapi-diff" project Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenAPITools/openapi-diff#26 · 4 comments · Opened Feb 13, 2018
Add details in output (html/markdown/console) for changes in schema Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenAPITools/openapi-diff#18 · 6 comments · 2 reactions · Opened Jan 12, 2018

OpenAPITools/openapi-diff

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