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Keystone vs Kirby

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Keystone vs Kirby
Fact	Keystone	Kirby
Language	TypeScript	PHP
Licence	MIT	Other
Stars	10k	1.5k
Latest	2026-08-31	5.6.1
Last push	2026-09-28	2026-10-06
Release cadence	about 4 days between releases	about 16 days between releases
Active contributors	6 commit authors on the default branch in the last 90 days	4 commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace Contentful. Alternatives to Contentful →
Full replacementKeystoneSchema defined in TypeScript, with an admin UI and a GraphQL API, in Node.js.
PartialKirbyFile-based CMS with a configurable panel and a content API; production use needs a paid licence.