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API clients

Build, send and share HTTP, GraphQL and gRPC requests from a desktop or browser app, or call gRPC services from the command line.

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API clients
OutilÉtoilesLicenceConditionsAuto-hébergeableLangageDernière releaseDernier push
Probe66Apache-2.0Open sourceNonRustv2.4.32026-11-10
Hoppscotch81kMITOpen sourceNonTypeScript2026.10.12026-11-05
Bruno48kMITOpen sourceNonJavaScriptv4.3.02026-11-11
Insomnia40kApache-2.0Open sourceNonTypeScriptcore@13.4.02026-11-12
Yaak19kMITOpen sourceNonRustv2026.9.12026-11-11
gRPCurl13kMITOpen sourceNonGov1.9.42026-11-02
Posting13kApache-2.0Open sourceNonGo2.11.22026-10-16
Requestly6.8kOtherOpen sourceNonInconnuchangelog-2026.03.232026-11-11
REST Client6.1kMITOpen sourceNonTypeScriptv0.25.02026-04-23
gRPC UI5.9kMITOpen sourceNonJavaScriptv1.5.42026-11-02
ATAC3.8kMITOpen sourceNonRustv0.24.02026-10-19
Restfox2.8kMITOpen sourceNonTypeScriptv0.42.02026-11-10
Slumber1.2kMITOpen sourceNonRustv5.4.42026-11-11

13 outils

Probe

A fast, native, local-first API client and Postman alternative for macOS, Windows and Linux, with a CLI for CI and AI agents. Built with Rust and GPUI, using OpenCollection YAML.

Langage
Rust
Licence
Apache-2.0
Étoiles
66
Dernière release
v2.4.3
Dernier push
2026-11-10
Hoppscotch

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Langage
TypeScript
Licence
MIT
Étoiles
81k
Dernière release
2026.10.1
Dernier push
2026-11-05
Bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Langage
JavaScript
Licence
MIT
Étoiles
48k
Dernière release
v4.3.0
Dernier push
2026-11-11
Insomnia

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

Langage
TypeScript
Licence
Apache-2.0
Étoiles
40k
Dernière release
core@13.4.0
Dernier push
2026-11-12
Yaak

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

Langage
Rust
Licence
MIT
Étoiles
19k
Dernière release
v2026.9.1
Dernier push
2026-11-11
gRPCurl

Like cURL, but for gRPC: Command-line tool for interacting with gRPC servers

Langage
Go
Licence
MIT
Étoiles
13k
Dernière release
v1.9.4
Dernier push
2026-11-02
Posting

The modern API client that lives in your terminal.

Langage
Go
Licence
Apache-2.0
Étoiles
13k
Dernière release
2.11.2
Dernier push
2026-10-16
Requestly

Community hub for Requestly API Client — bugs, feature requests, and roadmap. The privacy-first Postman alternative.

Langage
Inconnu
Licence
Other
Étoiles
6.8k
Dernière release
changelog-2026.03.23
Dernier push
2026-11-11
gRPC UI

An interactive web UI for gRPC, along the lines of postman

Langage
JavaScript
Licence
MIT
Étoiles
5.9k
Dernière release
v1.5.4
Dernier push
2026-11-02
ATAC

A simple API client (postman like) in your terminal

Langage
Rust
Licence
MIT
Étoiles
3.8k
Dernière release
v0.24.0
Dernier push
2026-10-19
Restfox

Offline-First Minimalistic HTTP & Socket Testing Client for the Web & Desktop

Langage
TypeScript
Licence
MIT
Étoiles
2.8k
Dernière release
v0.42.0
Dernier push
2026-11-10
Slumber

Terminal-based HTTP/REST client

Langage
Rust
Licence
MIT
Étoiles
1.2k
Dernière release
v5.4.4
Dernier push
2026-11-11

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