Best API Mocking Tools in 2026
25 api mocking tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
25ranked
15free plans on this page
$0.02/molowest paid tier
3 Oct 2026last checked
#1 WireMock Top pick · 9.1 Free plan · Free
#2 WireMock Runner-up · 9.1 Free plan · Free
#3 Microcks Also great · 8.7 Free plan · Free
- Free planFree trial apiLinuxself-hostedWeb
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free planFree trial apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiextensionLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Paid from
- 10 /mo
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms$10/mofirst paid tier About MockzillaVisit site - Free plan self-hostedWeb
- Free plan
- Yes
- Dynamic responses
- Yes
- OpenAPI import
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiextensionLinuxself-hostedWeb
- Free plan
- Yes
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms€15/mofirst paid tier About MockflyVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 10 /mo
RecognisedDocumentedFree planFree trialPlatforms - Free plan WebWindowsmacOSLinux
- Free plan
- Yes
- Paid from
- 100 /mo
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 29 /mo
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms$29/mofirst paid tier About moqapi.devVisit site - Free plan apiWeb
- Free plan
- Yes
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms$2.92/mofirst paid tier About MockAPIVisit site - Free plan Linuxself-hostedWindows
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiWeb
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms$0.02/mofirst paid tier About Knockout APIVisit site - Free plan LinuxmacOSself-hostedWindows
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WebWindowsmacOSLinux
- Free plan
- No
- Paid from
- 10 /mo
RecognisedDocumentedFree planFree trialPlatforms - Web
- Dynamic responses
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Dynamic responses
- Yes
- OpenAPI import
- Yes
- Request matching
- path
RecognisedDocumentedFree planFree trialPlatforms - Web
- Dynamic responses
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Dynamic responses
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
- Paid from
- 15 /mo
- Dynamic responses
- Yes
- Mock data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Dynamic responses
- Yes
- Request matching
- path
RecognisedDocumentedFree planFree trialPlatforms -
- Dynamic responses
- Yes
- Request matching
- path
RecognisedDocumentedFree planFree trialPlatforms - Web
- Dynamic responses
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Request matching
- path
RecognisedDocumentedFree planFree trialPlatforms
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which api mocking tool is ranked first on The Geeks Club?
WireMock is ranked #1 of 25 with a score of 9.1. WireMock is second and Microcks third.
How many of these have a free plan?
15 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Knockout API has the lowest first paid tier we found: $0.02/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.
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