Hoppscotch

Hoppscotch is an open-source API development playground for crafting, testing, and documenting REST, GraphQL, and WebSocket APIs in the browser.

Overview

Hoppscotch is a lightweight, open-source alternative to heavyweight API clients. It runs instantly in the browser and covers the full request workflow: composing REST, GraphQL, SSE, and WebSocket requests, organizing them into collections, scripting assertions, and automating runs. Teams add workspaces, shared collections, and environment variables, while the CLI and agent extend it to local services and CI pipelines. It is fast, keyboard-driven, and free at its core, which is why millions of developers use it daily.

The platform grew from a community project into a serious developer tool, backed by a commercial team that keeps the open-source core healthy. Keyboard-first design keeps request crafting fast, and generated documentation gives teams a shared reference without extra tooling.

Key Features

• REST, GraphQL, WebSocket, and SSE request support
• Open-source, browser-based, and installable as a PWA
• Collections, environments, and team workspaces
• Pre-request scripts and test assertions in JavaScript
• CLI and agent for local services and automation
• API documentation generation from collections

Pricing

Hoppscotch’s core is free and open source. The cloud edition adds team workspaces and enterprise features on paid plans, and self-hosting is available for organizations that want full control.

Who Is It For

Backend developers, QA engineers, and API teams who want a fast, shareable API client without licensing costs, plus enterprises standardizing API tooling across teams.

FAQ

Is Hoppscotch free to use?

Yes, the open-source edition is free; paid cloud plans cover team and enterprise needs.

Does Hoppscotch offer an API?

Hoppscotch is a client rather than a service; the CLI and agent support automation inside your own pipelines.

How does Hoppscotch compare to alternatives?

Where Postman is a large commercial platform, Hoppscotch stays lightweight, open source, and instantly accessible in the browser.

Can Hoppscotch test GraphQL APIs?

Yes, a dedicated GraphQL workspace supports queries, mutations, schema exploration, and subscriptions alongside REST and WebSocket testing.

Can I self-host Hoppscotch?

Yes, self-hosting is fully supported and popular with enterprises that keep API tooling inside their own infrastructure.

Does Hoppscotch support API testing automation?

Yes, collections run through the CLI in CI pipelines, and scriptable assertions turn saved requests into regression checks.

Is my data synced across devices?

Cloud workspaces sync collections and environments, while local data stays available for offline and guest usage.

Does Hoppscotch have keyboard shortcuts?

Yes, an extensive shortcut system keeps hands on the keyboard and request crafting fast for power users.