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Apps with Mock servers

2 apps

Top Mock servers apps ranked by the community

  1. Postman

    Postman is an API platform for sending HTTP, GraphQL, gRPC and WebSocket requests, organizing them in collections and automating tests. It also covers API design, documentation, mock servers, monitors and AI-assisted features, with shared workspaces for teams. Postman runs on the web and as a desktop app; the free plan is limited to a single user, and team collaboration requires a paid plan.

    6 Postman alternatives

    Pros

    • Covers the API lifecycle from design and testing to docs and monitors
    • Large public network of shared API collections to start from
    • Collection runner and scripts automate test suites, including in CI

    Cons

    • Free plan is limited to one user; team collaboration requires a paid plan
    • The app feels heavy and cluttered for sending a quick request
    • Cloud-centric workflow is a concern for teams handling sensitive APIs
    Cost / License
    FreemiumProprietary
    Categories
    API Clients
    Platforms
    WebWindowsMacLinux
    Features
    AI assistantAutomated API testingGraphQL supportMock serversRequest collectionsTeam collaboration
    Visit websiteMore about Postman

  2. Insomnia

    40Kstars

    Insomnia is an open source API client from Kong for designing and debugging REST, GraphQL, gRPC, WebSocket and server-sent event APIs. It supports collections, environments, scripting, test suites, mock servers, OpenAPI design and plugins. Projects can stay local, sync with Git or live in the cloud with end-to-end encryption, and paid plans add team collaboration and enterprise controls.

    6 Insomnia alternatives

    Pros

    • REST, GraphQL, gRPC, WebSocket and SSE requests in one client
    • Projects can stay local or sync through Git instead of the cloud
    • Built-in mock servers, test suites and OpenAPI design

    Cons

    • Team collaboration and enterprise controls require a paid plan
    • Storage options (local, Git, cloud) changed across versions and can be confusing
    Cost / License
    FreemiumOpen source
    Categories
    API Clients
    Platforms
    WindowsMacLinux
    Features
    Automated API testingGraphQL supportMock serversOffline modePlugins & extensionsRequest collections
    Visit websiteMore about Insomnia