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Software · head to head

Postman vs Swagger/OpenAPI

Postman logo

Postman

Software

The API platform for building and using APIs

From
Free
Rated
-
Full reviewWebsite
S

Swagger/OpenAPI

Software

API specification and documentation framework using OpenAPI standard

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Postman free plan limited to single user as of March 1, 2026, making it unsuitable for teams without paid plans; Swagger/OpenAPI the OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it
  • They diverge on capability: Postman covers API client, Swagger/OpenAPI covers OpenAPI Specification.

Where they differ

Only the attributes on which Postman and Swagger/OpenAPI actually diverge.

Attributes where Postman and Swagger/OpenAPI differ
AttributePostmanSwagger/OpenAPI
Pricing modelUnknownfreemium
PlatformsWeb, Windows, macOS, LinuxWeb, CLI, Desktop
Founded20142001

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Postman

  • API client
  • Automated testing
  • Mock servers
  • Documentation
  • Monitors
  • Workspaces
  • Version control
  • API design

Only in Swagger/OpenAPI

  • OpenAPI Specification
  • Interactive Documentation
  • Code Generation
  • IDE plugins
  • Web support
  • CLI support
  • Desktop support

Both cover

  • GitHub
  • GitLab
  • Jenkins

What people use each for

The jobs each tool is most often brought in to do.

Postman

  • API testingnot Swagger/OpenAPI
  • API documentationnot Swagger/OpenAPI
  • API monitoringnot Swagger/OpenAPI
  • Team collaborationnot Swagger/OpenAPI
  • API developmentnot Swagger/OpenAPI

Swagger/OpenAPI

  • API Developmentnot Postman
  • API Gatewaynot Postman
  • API Testingnot Postman
  • API Documentationnot Postman
  • Microservicesnot Postman

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Postman

  • Free plan limited to single user as of March 1, 2026, making it unsuitable for teams without paid plans
  • Only 25 collection runs per month and 1,000 API calls/month on free tier
  • Removed local-only Scratch Pad mode in 2023, forcing cloud account creation and sync
  • Requires Postman account and internet connection for most features
  • Cloud-first architecture with mandatory syncing to Postman's cloud servers
  • No CI/CD integration or advanced security features on free plan

Swagger/OpenAPI

  • The OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it

Pricing, plan by plan

Postman

Free
  • FreeFree
    • 1 user
    • 25 collection runs/month
    • 1,000 API calls/month
  • Team$14/month
    • Team collaboration
    • Shared workspaces
    • API mocking
  • Professional$29/month
    • Team features
    • Advanced security
    • SSO
  • Enterprise$49/month
    • Professional features
    • Custom integrations
    • Priority support

Swagger/OpenAPI

Free
  • Open SourceFree
    • OpenAPI specification
    • Community tools
  • SwaggerHub FreeFree
    • Cloud editor
    • API mocking
    • API testing
  • SwaggerHub Pro$75/monthly
    • Team collaboration
    • Advanced mocking
    • Analytics

Which should you pick?

Choose Postman if

  • You need api client.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Linux.
  • You also want automated testing.
Postman review

Choose Swagger/OpenAPI if

  • You need openapi specification.
  • You want to start without paying.
  • You work on Web, CLI, Desktop.
  • You also want interactive documentation.
Swagger/OpenAPI review

Questions people ask

Is Postman or Swagger/OpenAPI better?
Neither clearly leads. Postman starts at Free and Swagger/OpenAPI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postman or Swagger/OpenAPI?
Postman starts at Free and Swagger/OpenAPI at Free.
Does Postman or Swagger/OpenAPI run on more platforms?
Postman runs on Web, Windows, macOS, Linux. Swagger/OpenAPI runs on Web, CLI, Desktop.
Can I use Postman for free?
Both have a free tier, so you can try either at no cost before committing.
What is Postman best used for?
Postman is most often used for api testing, api documentation, api monitoring, team collaboration. Of those, api testing and api documentation are not what Swagger/OpenAPI is typically brought in for.
What can Postman do that Swagger/OpenAPI cannot?
Postman covers API client, Automated testing, Mock servers, Documentation. Swagger/OpenAPI covers OpenAPI Specification, Interactive Documentation, Code Generation, IDE plugins. Both handle GitHub, GitLab, Jenkins.

Answered from the vendors’ own pages

Postman: What is the cost of Postman?

Postman has a free plan limited to 1 user, 25 collection runs/month, 1,000 API calls/month. Team plans start at $14/user/month for Basic. Professional at $29/user/month, and Enterprise at $49/user/month.

Source
Postman: Can I use Postman offline?

Postman requires an internet connection to sync collections to the cloud. Since 2023, the Scratch Pad local-only mode was removed. Users must sign in with a Postman account, and collections sync to cloud by default. Offline work is possible but limited without cloud sync features.

Source
Postman: Does Postman have team collaboration?

Team collaboration is not available on the free plan (limited to 1 user). Team plans start at $14/user/month and include shared workspaces, real-time collaboration, and team management features.

Source
Postman: What are the free plan limits?

Free plan allows: 1 user only, 25 collection runs per month, 1,000 API calls/month, and 1,000 mock server calls/month. No CI/CD integration or advanced security features.

Source
Postman: Does Postman work with other development tools?

Postman integrates with Git repositories, offers a Node.js runner (Newman) for automation, and connects with popular CI/CD platforms. Teams using git-native workflows may prefer alternatives like Bruno.

Source
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