Code · Vendor site 2026-10-04
Ninja is a lightweight Java web framework emphasizing simplicity, rapid development, and straightforward deployment. Documentation covers routing, JSON and XML views, WebSockets, validation, and commercial support options.
Understand the total cost
Free
Free
Ninja is open source with free documentation and downloads; commercial support plans are listed separately without USD prices on the homepage.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
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Yes. Ninja has an ongoing free plan. Ninja is open source with free documentation and downloads; commercial support plans are listed separately without USD prices on the homepage.
Ninja is listed as free. No paid plan with a published price was found.
We could not confirm API access for Ninja.