Hoppscotch Has a Free API Development Platform — Open-Source Postman in Your Browser

Hoppscotch is an open-source API development ecosystem — test REST, GraphQL, WebSocket, and SSE APIs from your browser.

What You Get for Free

• REST client — full-featured HTTP request builder
• GraphQL — query editor with schema auto-completion
• WebSocket — real-time WebSocket testing
• SSE — Server-Sent Events testing
• Collections — organize and share API requests
• Environments — variables for dev, staging, production
• Pre-request scripts — JavaScript scripts before each request
• Authentication — Bearer, Basic, OAuth2, API Key
• History — browse past requests
• Self-hostable — run your own instance

Quick Start

1. Open hoppscotch.io (no signup needed)
2. Enter URL → Select method → Add headers/body → Send
3. Save to collection → Share with team

Or self-host:

docker compose up -d  # from hoppscotch's docker-compose

Why Developers Switch from Postman

Postman forces cloud accounts and monetizes features:

• No account needed — open in browser, start testing
• Open source — self-host for team use
• Fast — PWA loads instantly, no Electron overhead
• Free forever — all features free, no paid tiers

A team refused Postman's mandatory account requirement. After Hoppscotch: same testing workflow, no accounts, runs in browser, 5 seconds to start testing.

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