Insomnia vs Swagger UI: Key Differences & When to Use Each

Comprehensive side-by-side comparison of features, pricing, and metrics

Key Differences

Compare Insomnia and Swagger UI across features, pricing, integrations, and community metrics. Insomnia / Swagger UI.

Feature

Insomnia

Api Tools

Swagger UI

Documentation

Side-by-side comparison of developer tools
API client for REST and GraphQL
OpenAPI/Swagger documentation UI
GitHub Stars
⭐ 38,332
⭐ 28,763
Contributors
👥 357
👥 618
Pricing
✓ Free
Enterprise: Contact sales
✓ Free
Enterprise: Contact sales
Languages
TypeScript
JavaScript
Features
  • • Api
  • • Api Client
  • • Api Design
  • • Curl
  • • Electron App
  • • Hacktoberfest
  • • Oas
  • • Open Source
  • • Openapi
  • • Openapi Specification
Integrations
No integrations listed
No integrations listed
Momentum Score
36/100 (stable)
49/100 (stable)
Community Health
31/100 (needs-attention)
43/100 (developing)
Maturity Index
45/100 (emerging)
63/100 (growing)
Innovation Score
52/100 (evolving)
65/100 (progressive)
Risk Score (higher is safer)
36/100 (medium)
53/100 (low)
Developer Experience
91/100 (excellent)
54/100 (needs-improvement)
Links
🌐 Visit Website View on GitHub
🌐 Visit Website View on GitHub

Insomnia Strengths

  • ✓ More popular (38,332 stars)

Swagger UI Strengths

  • ✓ Larger community (618 contributors)

When to Use Insomnia vs Swagger UI

Use Insomnia when its strengths align better with your stack and team needs, and choose Swagger UI when its ecosystem, integrations, or cost profile is a better fit.

More Comparisons

View Insomnia → View Swagger UI → Search More Tools →

Data source: GitHub API

Last updated: 4/21/2026