LibreOffice — Full Office Suite

Documents, spreadsheets and slides, permanently free.

A mature office suite that reads and writes the Microsoft formats most workplaces send you. Genuinely useful when you need to open a .docx or fix a spreadsheet formula without paying a monthly fee to do it.

officedocumentsspreadsheetfree

What you get

Desktop suite — delivered from the official source, always the latest version.
Licence: MIT / open source. Safe to use in personal and client work.
No signup, no email wall, no download manager.

ProductivityObsidian — Local-First Knowledge Base

Markdown notes with backlinks, graph view and no lock-in.

Desktop + mobile app · Free tier — no card required

ProductivitySyncthing — Private File Sync

Continuous device-to-device sync with no cloud in the middle.

Cross-platform app · MIT / open source

ProductivityKeePassXC — Offline Password Manager

An encrypted vault file you actually own.

Desktop app · MIT / open source

ProductivityExcalidraw — Hand-Drawn Diagram Tool

Virtual whiteboard for architecture sketches and flows.

Web app + npm package · MIT / open source

DataOpenRefine — Messy Data Cleanup

Clean, reconcile and reshape spreadsheets that fight back.

Desktop app · BSD — open source

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LibreOffice — Full Office Suite

What you get

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