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Head-to-head · API Testing Tools

Postman vs Insomnia

  • Updated Oct 2026
  • Both researched from official sources
  • 8 checks side by side
Higher score Postman #1 in API Testing Tools 9.3/10 Free plan Free plan✓ 6 of 6 features Visit Postman
Insomnia #6 in API Testing Tools 8.7/10 Free plan · 14-day trial Free planFree trial✓ 4 of 6 features Visit Insomnia

Postman leads on 1 check, Insomnia on 0, and 7 are even. Who comes out ahead on the 8 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePostman · 9.3/10
  • Lowest starting pricePostman · $9/mo
  • Free planboth
  • Free trialonly Insomnia
  • Most featuresPostman · 6 of 6

Postman scores higher on our rubric for api testing tools: 9.3 against 8.7 out of 10; our editors rank them #1 and #6.

Postman is cheaper to start at $9/user/mo against $12/user/mo.

Postman is the better fit for teams wanting the broadest mature API test platform. Insomnia is the better fit for developers needing a flexible open-source API client.

  • Postman fits best

    Teams wanting the broadest mature API test platform

  • Insomnia fits best

    Developers needing a flexible open-source API client

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Postman 9.3/10 Visit ↗ Insomnia 8.7/10 Visit ↗
At a glance
Editor score 9.3 8.7
Ranking #1 in API Testing Tools #6 in API Testing Tools
Best for Teams wanting the broadest mature API test platform Developers needing a flexible open-source API client
Pricing model Free plan + paid Free plan + paid
Starting price $9/mo (best) $12/user/mo
Free plan ✓ ✓
Free trial — 14 days
Deployment Cloud, Desktop, Browser extension Cloud, Self-hosted, Desktop
Platforms Web, Windows, macOS, Linux, Chrome extension Windows, macOS, Linux
Support Tickets, Community, Docs Email
Compliance SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS SOC 2, SSO/SAML
Integrations 8 integrations 9 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Postman 6/6 · Insomnia 4/6
GraphQL support ✓ ✓
SOAP support ✓ ✓
Scheduled runs ✓ (best) Not checked yet
CI/CD integration ✓ ✓
Mock server ✓ ✓
Contract testing ✓ (best) Not checked yet
Specs
Included requests Not checked yet Not checked yet
Our review
Pros
  • Supports HTTP, GraphQL, gRPC, WebSocket, and MQTT requests
  • Combines functional tests, mocks, specifications, monitoring, and CI/CD
  • Offers web, desktop, extension, and API access across major platforms
  • Supports REST, GraphQL, gRPC, WebSocket, SOAP, and SSE
  • Combines scripting, environments, mocking, testing, and OpenAPI tools
  • Offers local, Git, and cloud storage with Inso CLI automation
Cons
  • Advanced governance and audit reporting require the Enterprise plan
  • Team and Enterprise pricing is charged per user
  • Postman is proprietary rather than open source
  • Essentials Git Sync projects support up to 3 users
  • Role-based access control and SSO/SCIM are Enterprise features
  • Pro costs $12 per user per month when billed monthly
Our verdict

Postman is an API platform for developers and teams building, testing, documenting, and collaborating on APIs. Its API Client sends and inspects requests across HTTP, GraphQL, gRPC, WebSocket, and MQTT. Collections bring requests,…

Read the review →

Insomnia is an open-source API collaboration platform for developers and teams building, testing, debugging, and designing APIs. It supports REST, GraphQL, gRPC, WebSocket, SOAP, and SSE workflows, making it suited to teams working across…

Read the review →
  1. PostmanAPI Testing Tools 9.3Free plan
  2. InsomniaAPI Testing Tools 8.7Free plan · 14-day trial

Strengths and trade-offs

  • Postman — where it wins

    • Supports HTTP, GraphQL, gRPC, WebSocket, and MQTT requests
    • Combines functional tests, mocks, specifications, monitoring, and CI/CD
    • Offers web, desktop, extension, and API access across major platforms

    Where it doesn't

    • Advanced governance and audit reporting require the Enterprise plan
    • Team and Enterprise pricing is charged per user
    • Postman is proprietary rather than open source

  • Insomnia — where it wins

    • Supports REST, GraphQL, gRPC, WebSocket, SOAP, and SSE
    • Combines scripting, environments, mocking, testing, and OpenAPI tools
    • Offers local, Git, and cloud storage with Inso CLI automation

    Where it doesn't

    • Essentials Git Sync projects support up to 3 users
    • Role-based access control and SSO/SCIM are Enterprise features
    • Pro costs $12 per user per month when billed monthly

More comparisons

All API testing tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update