OpenSwap

Open core projects

Open core means a free open-source product plus paid features kept in directories under a proprietary license. Self-hosting the free part is fine; check that the features you need are in it.

Pl. 01
OPEN CORE

Activepieces

replaces Zapier

MIT core; packages/ee and server ee code are under a proprietary licence

★ 25k●●●○○push 2026-11-10

Pl. 02
OPEN CORE

AFFiNE

replaces Notion

Core under MIT (Community Edition parts under MPL-2.0 per the EE file); server/Enterprise parts under the AFFiNE EE License, production use needs a paid Enterprise subscription

★ 74kunratedpush 2026-11-10

Pl. 03
OPEN CORE

Chatwoot

replaces Intercom

MIT core; enterprise/ directory is under a separate licence

★ 40k●●●●○push 2026-11-10

Pl. 04
OPEN CORE

Dokploy

replaces Heroku

Apache-2.0 core; content under /proprietary is under a proprietary licence

★ 38kunratedpush 2026-11-09

Pl. 05
OPEN CORE

Formbricks

replaces Typeform

AGPL-3.0 core; apps/web/modules/ee is under a separate licence

★ 13k●●●●○push 2026-11-09

Pl. 06
OPEN CORE

Mattermost

replaces Slack

Source under AGPLv3 (OSI) or a commercial licence; compiled binaries MIT, admin tools Apache 2.0; Enterprise parts licensed separately

★ 40kunratedpush 2026-11-10

Pl. 07
OPEN CORE

Metabase

replaces Tableau

AGPL-3.0 outside enterprise/; enterprise/ under a commercial licence

★ 50kunratedpush 2026-11-10

Pl. 08
OPEN CORE

PostHog

replaces Mixpanel

Core under an open licence; ee/ directory is under a proprietary licence

★ 41kunratedpush 2026-11-10

Pl. 09
OPEN CORE

Rocket.Chat

replaces Slack

MIT core; apps/meteor/ee and ee/ are under a proprietary licence

★ 46kunratedpush 2026-11-10

Pl. 10
OPEN CORE

Twenty

replaces Salesforce

Mostly AGPL-3.0; certain files carry a commercial licence header

★ 61kunratedpush 2026-11-10

Pl. 11
OPEN CORE

Windmill

replaces Zapier

Apache-2.0 / AGPL-3.0 parts plus a proprietary licence for certain enterprise features

★ 18k●●●○○push 2026-11-09