What is Hoverfly used for?

Hoverfly Cloud is a lightweight, hosted API simulation platform that allows teams to create API mocks and simulations. It is a good fit for parallel development and early functional testing, simulating various API scenarios and conditions, and reducing wait times for unavailable downstream systems.

Is Hoverfly open source?

Yes. Hoverfly is open source under the Apache-2.0 licence. Its source code is on GitHub at SpectoLabs/hoverfly and is written mainly in Go.

Yes. Hoverfly is open source, so the software itself is free to use. A managed cloud version is also available.

Can I self-host Hoverfly?

Yes. Hoverfly can be self-hosted on your own server or infrastructure.

What is Hoverfly an alternative to?

Hoverfly is an open-source alternative to Beeceptor and WireMock Cloud. Other open-source alternatives to Beeceptor include MockServer, Microcks and Mockoon.

Is Hoverfly actively maintained?

Yes. The most recent commit to Hoverfly was on 12 October 2026, and the latest release is v1.12.15, published on 21 September 2026. The project has 2.5k stars on GitHub.

Hoverfly: open-source alternative to Beeceptor

About Hoverfly

Hoverfly Cloud is a hosted API simulation and service virtualization platform. It enables users to create API mocks and simulations to support parallel development and early functional testing. The platform is designed to reduce wait times for unavailable systems and lower the costs of managing complex test environments.

The platform aims to help teams test earlier in the development cycle without needing the end system ready. It offers simplicity, scalable performance (up to 2,000 API requests per second), and cost-effective running costs. It is suited for businesses looking to reduce dependencies on external services and live system constraints.

Key features

Create API mocks and simulations in minutes
Supports up to 2,000 API requests per second
Reduces need for hardware, software licenses, and maintenance of test environments
Enables parallel development and early functional testing
Removes dependence on availability or stability of actual APIs
Allows simulation of various scenarios and conditions

Good fit for

Parallel development and early functional testing
Simulating various API scenarios and conditions
Reducing wait times for unavailable downstream systems

Built with: Go tools
Tags: api simulation; service virtualization; api mocking; testing; cloud platform

Hoverfly: questions and answers

What is Hoverfly used for?: Hoverfly Cloud is a lightweight, hosted API simulation platform that allows teams to create API mocks and simulations. It is a good fit for parallel development and early functional testing, simulating various API scenarios and conditions, and reducing wait times for unavailable downstream systems.
Is Hoverfly open source?: Yes. Hoverfly is open source under the Apache-2.0 licence. Its source code is on GitHub at SpectoLabs/hoverfly and is written mainly in Go.
Is Hoverfly free?: Yes. Hoverfly is open source, so the software itself is free to use. A managed cloud version is also available.
Can I self-host Hoverfly?: Yes. Hoverfly can be self-hosted on your own server or infrastructure.
What is Hoverfly an alternative to?: Hoverfly is an open-source alternative to Beeceptor and WireMock Cloud. Other open-source alternatives to Beeceptor include MockServer, Microcks and Mockoon.
Is Hoverfly actively maintained?: Yes. The most recent commit to Hoverfly was on 12 October 2026, and the latest release is v1.12.15, published on 21 September 2026. The project has 2.5k stars on GitHub.