Best alternatives to Swagger UI - API Documentation Viewer (2026)
10 Chrome extensions that do a similar job to Swagger UI, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.
Swagger UI - API Documentation Viewer today
Swagger UI alternatives, compared
- 1
swagger-viewer
Shows swagger yaml/json rendered by Swagger-UI. This extension replace swagger code into preview html in GitHub.
≈9K users3.3★ from 8 ratingsNot updated for 2+ yearsNo special permissions- A similar number of users to Swagger UI
- Updated less recently
- Asks for fewer permissions (0 vs 2)
- 2
JSON Viewer Pro
A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON
≈300K users4.5★ from 219 ratingsUpdated 2 days ago3 permissions- About 30× more users than Swagger UI
- Asks for more permissions (3 vs 2)
- 3
JSON Viewer
Validates and makes JSON documents easy to read. Open source.
≈100K users3.6★ from 157 ratingsNot updated for 2+ years7 permissions- About 10× more users than Swagger UI
- Updated less recently
- Asks for more permissions (7 vs 2)
- 4
SSE Viewer
SSE Viewer is a Chrome extension for displaying EventStream in the devtools
≈4K users4.6★ from 9 ratingsNot updated for 3+ years2 permissions- About 2.5× fewer users than Swagger UI
- Updated less recently
- 5
Talend API Tester - Free Edition
Visually interact with REST, SOAP and HTTP APIs.
≈600K users4.8★ from 4.3K ratingsUpdated 6 days ago9 permissions- About 60× more users than Swagger UI
- Asks for more permissions (9 vs 2)
- 6
JSON Viewer
Most aesthetic & customizable JSON/JSONP viewer with themes, custom search, syntax highlighting/checking & copy features.
≈10K users4.9★ from 35 ratingsUpdated 3 months ago3 permissions- A similar number of users to Swagger UI
- Updated less recently
- Asks for more permissions (3 vs 2)
- 7
Virtual Json Viewer
JSON browser extension with virtual DOM, search and JQ filtering
≈2K users4.7★ from 11 ratingsUpdated 5 weeks ago2 permissions- About 5.0× fewer users than Swagger UI
- 8
XML Viewer
Open the XML file quickly and for free
≈300K users2.4★ from 254 ratingsUpdated 3 months agoNo special permissions- About 30× more users than Swagger UI
- Updated less recently
- Asks for fewer permissions (0 vs 2)
- Listed under Workflow & Planning
- 9
API Tester
Rest API Tester is an easy api testing tool. Streamline your software development and test api online with this Chrome extension.
≈2K users5.0★ from 6 ratingsUpdated 8 months ago8 permissions- About 5.0× fewer users than Swagger UI
- Updated less recently
- Asks for more permissions (8 vs 2)
- 10
Swagger Preview
透過 swagger 預覽 GitHub API
≈1K users4.4★ from 7 ratingsUpdated 7 weeks ago6 permissions- About 10× fewer users than Swagger UI
- Asks for more permissions (6 vs 2)
Swagger UI alternatives: questions
What is the best alternative to Swagger UI?
By users, the most popular alternative is Talend API Tester - Free Edition with ≈600K users and a 4.8-star rating. The closest match by what it does is swagger-viewer.
Which Swagger UI alternative has the best rating?
Talend API Tester - Free Edition has the highest rating of these alternatives with 50+ ratings: 4.8 out of 5 from 4.3K ratings.
Is there a Swagger UI alternative that asks for fewer permissions?
swagger-viewer asks for 0 permissions, against 2 for Swagger UI.
How many alternatives to Swagger UI are there?
We list 10 close alternatives to Swagger UI on the Chrome Web Store, picked by what they do and ranked by how close they are.
Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.