Hoppscotch
Lightweight open-source API request builder in the browser.
Alternatives · 2026
Alternatives to Insomnia
Open-source REST and GraphQL API client.
3 hand-curated alternatives from MintedSaaS's directory. See the Insomnia listing →
Insomnia is an open-source REST and GraphQL API client built for developers who need to test, debug, and document APIs without leaving their terminal or IDE. It's been the go-to choice for teams that want a lightweight, self-hostable alternative to commercial API testing platforms. Insomnia runs on Windows, macOS, and Linux, stores request collections in git-friendly formats, and has no forced cloud sync or account requirement.
It's used by backend engineers prototyping endpoints, API designers documenting specs, and QA teams scripting integration tests. Developers reach for it when they need offline-first tooling, when they want their API calls version-controlled with their code, or when they're already comfortable with keyboard-driven workflows. The typical user isn't locked into a vendor's cloud—they can export collections, run the client locally, and maintain full control over where their request history lives.
What we offer that competes
What to look for
- Whether the client stores request collections as plain files in your repository instead of proprietary formats.
- Whether team members can share requests and environments without creating individual accounts.
- Whether the tool works fully offline or requires internet access to retrieve schemas and documentation.
- Whether you can run the client self-hosted or must use the vendor's cloud servers for core features.
- Whether the export format is human-readable and produces clean Git diffs when collections change.
- Whether mock servers and API documentation publishing are included at no extra cost.
FAQ
What are the best alternatives to Insomnia?
Hoppscotch, Bruno, and Postman are the most direct competitors. Hoppscotch is browser-based and free with team collaboration built in. Bruno is a desktop client that stores collections as Git-friendly files on disk. Postman is cloud-first and includes built-in API documentation, mocking, and monitoring, but requires a Postman account.
Are there free alternatives to Insomnia for testing APIs?
Yes. Hoppscotch is free, browser-based, and requires no installation. Bruno is also free and open-source, storing everything locally. Postman has a free tier but pushes users toward paid plans for team features and cloud storage.
Which API client should I use if my team works offline?
Bruno is the best choice for offline-first teams—it stores collections as plain files in your project directory, syncs via Git, and never requires internet access. Hoppscotch works offline if you've already loaded it, but needs internet to pull new features. Postman requires a connection for most features.
Do these API clients support GraphQL and REST?
All three support both. Insomnia, Bruno, and Hoppscotch handle REST, GraphQL, WebSocket, and gRPC. Postman supports REST and GraphQL, but WebSocket and gRPC require additional setup or paid add-ons.
Can I version control my API requests in Git?
Bruno is designed for this—it exports collections as plain JSON files that version cleanly in Git. Hoppscotch and Insomnia can export collections, but the file formats aren't optimized for line-by-line diffs. Postman's native exports are verbose and merge poorly.
Which API client is best for team collaboration?
Postman has the most mature team features: shared workspaces, role-based access, version history, and API mocking. Hoppscotch includes free team collaboration with live sync. Bruno is single-user by design but works well when collections are shared via Git.
Can I use these tools to generate API documentation?
Postman has built-in API documentation publishing and mock server generation. Insomnia and Hoppscotch generate documentation from requests but lack Postman's automated publishing. Bruno doesn't have native documentation export.
What platforms do Insomnia alternatives run on?
Hoppscotch runs in any browser (Windows, macOS, Linux, mobile). Bruno is desktop-only (Windows, macOS, Linux). Postman is desktop (all platforms) or browser-based. Insomnia runs on Windows, macOS, and Linux as a native desktop client.