Alternatives to Mockbin
A free web tool that creates mock API endpoints with fixed responses and logs requests to them. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Mockbin
A free web tool that creates mock API endpoints with fixed responses and logs requests to them.
Replacements
Listings that take over the same core job as Mockbin.
Beeceptor
A web service for creating mock API servers and inspecting incoming webhook requests in real time.
Beeceptor adds dynamic responses from request data and imports GraphQL, gRPC and SOAP definitions, but it is closed source with paid advanced features.
Stoplight
A web platform for designing OpenAPI descriptions, generating API documentation and running mock servers.
Stoplight runs mock servers from OpenAPI descriptions within a design and documentation platform, but requires an account and targets teams.
Postman
The most widely used API client, for sending HTTP requests, organising them into collections and sharing them with a team.
Postman generates mock servers from collections alongside its API client, but it is closed source and effectively requires an account.
Mockoon
A desktop app and CLI for designing and running mock REST APIs locally without an account.
Mockoon runs mock REST APIs locally from a desktop app or CLI, importing OpenAPI and recording requests, with no hosted third party involved.
Also worth comparing
These listings name Mockbin as their own alternative, so the relationship runs both ways.
Hookdeck Console
A free web tool for receiving, inspecting, replaying and saving webhook and HTTP request events.
Mockbin is open source and logs requests to bins with custom mock responses, but it has no event replay and bins depend on browser storage.
json-server
A command-line tool that turns a JSON file into a fake REST API for prototyping.
Mockbin is a free open-source web tool for mock endpoints with fixed responses and request logging, needing no install, but without programmable logic or a data-backed REST API.
Prism
An open-source mock server and validation proxy built from OpenAPI documents and Postman collections.
Mockbin generates mock endpoints from an OpenAPI 3.x document in a free web tool without an account, but returns fixed responses and has no validation proxy.
PutsReq
A web tool that records incoming HTTP requests and returns fake responses you define in JavaScript.
Mockbin is open source and creates mock endpoints from OpenAPI documents with request inspection, but responses are fixed rather than scripted in JavaScript.
Request Catcher
A web tool that gives you a subdomain and shows every HTTP request sent to it live.
Mockbin is open source with no account and adds custom mock responses per bin, but losing browser storage loses the list of bins.
TypedWebhook.tools
A webhook testing tool that logs requests and generates TypeScript types and schemas from payloads.
Mockbin is open source and focuses on mock endpoints with fixed responses plus request logging, without generating types or schemas from payloads.
WebHook Tester
A self-hosted tool for testing and debugging webhooks and HTTP requests on randomly generated URLs.
Mockbin is an open-source hosted tool that pairs request inspection with mock endpoints, with no self-hosting of the captured traffic.
Webhook.site
A web service that gives you a unique URL and email address to inspect incoming requests.
Mockbin is free, open source and needs no account, focusing on mock endpoints with fixed responses alongside request inspection.
WireMock
An open-source tool for mocking HTTP APIs so you can test without real service dependencies.
Mockbin is a free open-source web tool for mock endpoints generated from OpenAPI 3.x, with no account, but it returns fixed responses rather than programmable logic.
Similar software
Related functionality, not a direct replacement.
Insomnia
An API client for REST, GraphQL and gRPC that can keep everything local or sync through Git instead of a cloud.
