Hoppscotch vs Scalar

Comparing two open source alternatives to Postman . Use the comparison below to decide which one fits your needs.

Hoppscotch

MIT

Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)

Visit Full details

Scalar

MIT

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern Rest API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

Visit Full details

Side-by-side comparison

	Hoppscotch	Scalar
License	MIT	MIT
Self-hostable	No	No
GitHub Stars	78,664	14,431
Forks	5,738	790
Open Issues	733	132
Last Commit	Mar 28, 2026	Mar 28, 2026
First Released	Aug 21, 2019	Aug 16, 2023
Categories	API Development & Testing Tools	API Development & Testing Tools
Tags	#API #api client #rest #http client	#API #api client #rest #http client

Similar open source alternatives

HTTPie

🚀 HTTPie Desktop — cross-platform API testing client for humans. Painlessly test REST, GraphQL, and HTTP APIs.

Alternative to:

Postman

Bruno

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

Alternative to:

Postman

Insomnia

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

Alternative to:

Postman

Yaak

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

Alternative to:

Postman