Wilma

6.9easy start · #13 of 20
in Service Virtualization Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on self-hosted, Web.

Wilma is ranked #13 of 20 in service virtualization software on The Geeks Club. It runs on Self-hosted, Web. There is a free plan.

Wilma plans and pricing

All plans

Wilma Free GPLv3.0 licensed software github.com · 30 Sept 2026

Compared on service virtualization software

Free plan: Yes
Deployment model: self_hosted
Stateful simulation: Yes
Fault injection: Yes
Database virtualization: No
Messaging virtualization: No
Record and replay: Yes

Best Wilma alternatives

See all 19

LocalStack 0 of 4 in the starter kit Lesson 17.9 Amazon RDS 0 of 4 in the starter kit Lesson 27.6 WireMock 0 of 4 in the starter kit Lesson 37.6 Microcks 0 of 4 in the starter kit Lesson 47.4 Parasoft SOAtest 0 of 4 in the starter kit Lesson 57.4 BlazeMeter 0 of 4 in the starter kit Lesson 67.2

The record

Purpose: Wilma combines a service stub with an HTTP/HTTPS transparent proxy for developing and testing applications that depend on other services.
Traffic handling: It can capture, decode, save, and forward HTTP/HTTPS traffic, including two-way SSL, or generate stub responses for requests.
Operating modes: Wilma can run as a proxy, a service stub, or in a mixed mode.
Stub configuration: Stub behavior is configured with JSON files, and multiple stub configurations can be used.
Message modification: Message interceptors can alter or analyze requests and responses in real time, and users can add their own interceptor classes.
Message search: Wilma Message Search provides search for request-response pairs logged by Wilma.
Integrations: Wilma provides a Java service library through Maven Central and a .NET service library through NuGet.
Distribution: The applications are available as Docker Hub images, GitHub release ZIP files, or builds created from source.
Runtime requirement: The Wilma application requires JRE 11, and Wilma Message Search requires JDK 11.
Use cases: The site describes use in development and test environments, including unit, integration, functional, and end-to-end testing, as well as manual testing.
Load behavior: When load rises, Wilma can disable message decoding and then disk logging, and it restores those operations as load returns to normal.
Log retention: Wilma has a scheduled process that deletes old message logs according to configurable settings.
Test scenarios: The maker describes use in unit, integration, functional, end-to-end, and performance testing, as well as manual tests.
Runtime configuration: Wilma's stub behavior is configured using JSON files, which can be uploaded or changed through its UI or service while it is running.
Price from: Free

Where it ranks on The Geeks Club

Best Service Virtualization Software in 2026#13 of 20

Is Wilma yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Wilma

Sources

epam.github.io/Wilma/· checked 30 Sept 2026
epam.github.io/Wilma/introduction.html· checked 30 Sept 2026
epam.github.io/Wilma/endusers/feature_list.html· checked 30 Sept 2026
epam.github.io/Wilma/endusers/index.html· checked 30 Sept 2026
github.com/epam/Wilma· checked 30 Sept 2026
epam.github.io/Wilma/contact.html· checked 30 Sept 2026