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Cybersecurity · head to head

Keygen vs Postman

Keygen logo

Keygen

Cybersecurity

Open, source-available software licensing API

From
Free
Free plan
Yes
Visit KeygenFull review
Postman logo

Postman

Developer Tools

The API platform for building and using APIs

From
Free
Free plan
Yes
Visit PostmanFull review

The short version

  • Postman is an API platform for building and using APIs.
  • Keygen is free; Postman starts at $14/mo.
  • Where Keygen falls short: specific Active Licensed User (ALU) pricing not listed; requires interactive pricing calculator.
  • Where Postman falls short: free plan limited to single user as of March 1, 2026, making it unsuitable for teams without paid plans.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Keygen and Postman actually diverge.

Attributes where Keygen and Postman differ
AttributeKeygenPostman
PlatformsWebWeb, Windows, macOS, Linux
CategoryCybersecurityDeveloper Tools

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: pricing model for Postman, founded for Keygen.

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 Keygen

Nothing recorded that Postman does not also cover.

Only in Postman

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

What people use each for

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

Keygen

  • Software licensing and distributionnot Postman
  • Product release managementnot Postman
  • API-based license verificationnot Postman

Postman

  • API testingnot Keygen
  • API documentationnot Keygen
  • API monitoringnot Keygen
  • Team collaborationnot Keygen
  • API developmentnot Keygen

Where each one falls short

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

Keygen

  • Specific Active Licensed User (ALU) pricing not listed; requires interactive pricing calculator
  • Whitelabel API add-on costs $995/year per domain

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

Pricing, plan by plan

Keygen

Free
  • DevFree
    • Up to 100 Active Licensed Users
    • 10 product releases
    • Core licensing API only
  • StdOn request
    • Scaling with licensing volume
    • Distribution API (OCI/Docker, npm, Rubygems, PyPI, Tauri)
    • Flat monthly/yearly fees
  • EnterpriseOn request
    • Audit logs
    • SAML/SSO
    • IP filtering

Postman

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

Which should you pick?

Choose Keygen if

  • You want to start without paying.
Keygen review

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

Questions people ask

Is Keygen or Postman better?
Neither clearly leads. Keygen starts at Free and Postman at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keygen or Postman?
Keygen starts at Free and Postman at Free.
Does Keygen or Postman run on more platforms?
Keygen runs on Web. Postman runs on Web, Windows, macOS, Linux.
Can I use Keygen for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keygen best used for?
Keygen is most often used for software licensing and distribution, product release management, api-based license verification. Of those, software licensing and distribution and product release management are not what Postman is typically brought in for.
What can Keygen do that Postman cannot?
Postman covers API client, Automated testing, Mock servers, Documentation.

Answered from the vendors’ own pages

Keygen: Does Keygen have a free tier?

Yes, the Dev tier is free and supports up to 100 Active Licensed Users with 10 product releases and core licensing API access.

Source
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
Keygen: How is Keygen pricing calculated?

Keygen uses scalable, flat monthly or yearly fees based on your licensing volume (Active Licensed Users). No revenue share or transaction fees are charged.

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
Keygen: Does Keygen charge for additional features like SSO?

SAML/SSO is included in Enterprise tiers. Whitelabel API support costs $995/year per domain. Premium Support SLA is $995/month for Enterprise.

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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