Is JSON Server free and open source?

Yes. JSON Server is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/typicode/json-server.

What are open-source alternatives to JSON Server?

Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

JSON Server

Curated

Spins up a fake REST API with CRUD endpoints from a JSON file, for prototyping frontends without a backend.

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Web & APIs·MIT·75.7k stars·v1.0.0-beta.15·added 2026-07-30

Curated listing — added by OSSDrop, not the maker.

Frequently asked

What is JSON Server?
JSON Server is an open-source web & apis tool — Spins up a fake REST API with CRUD endpoints from a JSON file, for prototyping frontends without a backend.
Is JSON Server free and open source?
Yes. JSON Server is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/typicode/json-server.
What are open-source alternatives to JSON Server?
Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

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