Open-source Productivity software
Notes, tasks and everyday work tools
- JoplinAlternative to Evernote
A note-taking app for desktop, mobile and terminal that syncs through your own storage or a Joplin server, with optional end-to-end encryption.
AGPL-3.0-or-laterSelf-hostedCloud57kGitHub starsSome features paywalled - Cal.diyAlternative to Calendly
The open-source community edition of Cal.com: a scheduling and booking-page tool you can self-host. It is MIT licensed; Cal.com itself has been closed source since April 2026.
MITSelf-hostedCloud49kGitHub starsSome features paywalled - LogseqAlternative to Notion, Roam Research
A privacy-first, open-source knowledge base and outliner that stores notes locally and links them with [[backlinks]].
AGPL-3.0Self-hosted45kGitHub starsSome features paywalled
