Open Source Alternative

Best Productivity in 2026

12 listings. Featured first, then A to Z. Head-to-head comparisons

Featured

LibreOffice

Productivity

Free office suite for documents, sheets and slides

vs Microsoft Office, Microsoft 365Open sourceoffice-suitedocuments

AFFiNE

Productivity

Docs, whiteboards and databases in one workspace

vs Notion, MiroOpen sourcenoteswhiteboard

AppFlowy

Productivity

Notes and wiki with local-first data

vs NotionOpen sourcenoteswiki

Baserow

Productivity

Online database with a spreadsheet-style interface

vs AirtableOpen sourcedatabaseno-code

Cal.com

Productivity

Scheduling software for booking meetings

vs CalendlyOpen sourceschedulingcalendar

CryptPad

Productivity

End-to-end encrypted collaborative documents

vs Google Docs, Google SheetsOpen sourceencryptioncollaboration

Docmost

Productivity

Collaborative wiki and documentation

vs Confluence, NotionOpen sourcewikidocumentation

Joplin

Productivity

Note-taking app with sync and end-to-end encryption

vs EvernoteOpen sourcenotesmarkdown

Logseq

Productivity

Outliner for linked notes, stored as plain files

vs Roam Research, NotionOpen sourcenotesoutliner

ONLYOFFICE

Productivity

Online document editors you can host

vs Google Docs, Microsoft 365Open sourceoffice-suitecollaboration

Plane

Productivity

Issue tracking and project planning

vs Jira, LinearOpen sourceproject-managementissues

Vikunja

Productivity

Self-hosted to-do and project app

vs Todoist, TrelloOpen sourcetaskskanban