npm
vitest-dev/vitest
Next generation testing framework powered by Vite.
MITAug 27, 2026 · metrics 2.10.0
All tags
Catalogue tag
#mock
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
194 records
npm
orval-labs/orval
orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺
MITAug 28, 2026 · metrics 2.10.0
PyPI
getmoto/moto
A library that allows you to easily mock out tests based on AWS infrastructure.
Apache-2.0Aug 28, 2026 · metrics 2.10.0
Go
keploy/keploy
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Apache-2.0Sep 16, 2026 · metrics 2.10.0
crates.io · npm
0xMiden/protocol
Core components of the Miden protocol
MITOct 18, 2026 · metrics 2.10.0
npm
axa-group/oauth2-mock-server
A development and test oriented OAuth2 mock server
MITOct 12, 2026 · metrics 2.10.0
npm
elastic/elastic-otel-node
No repository description published.
Apache-2.0Oct 21, 2026 · metrics 2.10.0
PyPI
joke2k/faker
Faker is a Python package that generates fake data for you.
MITSep 16, 2026 · metrics 2.10.0
npm
mockoon/mockoon
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
MITSep 7, 2026 · metrics 2.10.0
npm
typegoose/mongodb-memory-server
Manage & spin up mongodb server binaries with zero(or slight) configuration for tests.
MITAug 27, 2026 · metrics 2.10.0
PyPI
adamchainz/time-machine
Travel through time in your tests.
MITAug 27, 2026 · metrics 2.10.0
npm
ardatan/graphql-tools
:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach
MITOct 20, 2026 · metrics 2.10.0
npm · PyPI · crates.io +4
mock-server/mockserver-monorepo
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
Apache-2.0Aug 28, 2026 · metrics 2.10.0
npm
sinonjs/sinon
Test spies, stubs and mocks for JavaScript.
Custom licenseSep 18, 2026 · metrics 2.10.0
PyPI
pytest-dev/pytest-mock
Thin-wrapper around the mock package for easier use with pytest
MITSep 9, 2026 · metrics 2.10.0
npm
streamich/memfs
Node.js "fs" and browser "File System API" adapters and in-memory implementations 👍
Apache-2.0Sep 17, 2026 · metrics 2.10.0
NuGet
wiremock/WireMock.Net
WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java, but extended and different functionality. Full documentation can be found at https://wiremock.org/dotnet/.
Apache-2.0Sep 11, 2026 · metrics 2.10.0
npm
CopilotKit/aimock
Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.
MITAug 27, 2026 · metrics 2.10.0
Maven
mockito/mockito
Most popular Mocking framework for unit tests written in Java
MITSep 16, 2026 · metrics 2.10.0
—
pester/Pester
Pester is the ubiquitous test and mock framework for PowerShell.
Custom licenseSep 10, 2026 · metrics 2.10.0
Go · PyPI
vektra/mockery
A mock code autogenerator for Go
BSD-3-ClauseSep 15, 2026 · metrics 2.10.0
npm
mswjs/msw
Industry standard API mocking for JavaScript.
MITSep 16, 2026 · metrics 2.10.0
npm
vuejs/pinia
🍍 Intuitive, type safe, light and flexible Store for Vue using the composition api with DevTools support
MITSep 17, 2026 · metrics 2.10.0
npm
boneskull/bupkis
Uncommonly extensible assertions for the beautiful people
BlueOak-1.0.0Sep 15, 2026 · metrics 2.10.0
Maven · npm
mockk/mockk
mocking library for Kotlin
Apache-2.0Oct 19, 2026 · metrics 2.10.0
PyPI
tekumara/fakesnow
Run, mock and test fake Snowflake databases locally.
Apache-2.0Aug 27, 2026 · metrics 2.10.0
Go · npm
bavix/gripmock
The fastest and most reliable gRPC mock server for testing and development
MITSep 10, 2026 · metrics 2.10.0
npm · PyPI
counterfact/api-simulator
Turn an OpenAPI spec into a local API in one command. Build and test your frontend with custom responses, shared state, and simulated failures, without waiting for the backend.
MITSep 18, 2026 · metrics 2.10.0
npm
hayes/pothos
Pothos GraphQL is library for creating GraphQL schemas in typescript using a strongly typed code first approach
ISCSep 16, 2026 · metrics 2.10.0
npm
help-me-mom/ng-mocks
Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup
MITOct 19, 2026 · metrics 2.10.0