Hoppscotch (hoppscotch.io, formerly Postwoman) — an open-source web-based API client. Self-hostable via Docker. Supports REST, GraphQL, WebSocket, MQTT. Lightweight (<1 MB PWA) vs Postman desktop (500+ MB). Alternatives: Enterno.io (built-in + monitoring), Bruno (desktop, git-friendly), Postman (SaaS). Hoppscotch is best for one-off browser tests.
Below: competitor overview, feature comparison, when Enterno.io wins, FAQ.
Hoppscotch built by Liyas Thomas in 2019 (open source). MIT license. Cloud SaaS (free) + self-hostable Docker image. Endorsed by Linus Torvalds on Twitter. Supports Google OAuth + GitHub OAuth + self-hosted auth.
| Feature | Enterno.io | Competitor |
|---|---|---|
| Open source | ❌ | ✅ MIT |
| Self-hostable (Docker) | ❌ | ✅ |
| Web-based (no install) | ✅ | ✅ |
| MQTT / WebSocket support | ❌ | ✅ |
| Continuous monitoring | ✅ | ❌ |
| Team spaces + sharing | ✅ Teams | ✅ Free |
| Uptime alerts integration | ✅ | ❌ |
| Price | Free + ₽490/mo | Free + $99/mo team |
Postman Web requires login + limited features. Hoppscotch — full-featured without login (via local storage).
<code>docker run -p 3000:3000 hoppscotch/hoppscotch</code> — 30 seconds. For prod add PostgreSQL + volume for persistence.
If self-hosted — 100%. Cloud free-tier — stored in Hoppscotch cloud (there is a local-only mode).
Hoppscotch — testing. Enterno — monitoring. Flow: test API in Hoppscotch → create Enterno monitor with the same URL + expected response.