Smallpdf is an online set of PDF tools, with thirty entries covering compression, conversion, organising, signing and asking questions of a document. The free tier runs every tool but caps how many results you take away, while Pro lifts the cap and adds OCR and stronger compression.

MuPDF 1.28.5 is an AGPL document engine that reads PDF, XPS, EPUB and comic archives, ships a light viewer called mupdf-gl, and bundles nineteen command line tools for rendering, conversion and signing. The tag was cut on 25 September 2026.

ONLYOFFICE Desktop Editors 10.0 gathers AI into a module you install or leave out. DOCX, XLSX, PPTX and PDF open in one window, and the source is published under AGPLv3.

An open source spreadsheet maintained by the GNOME community, built around fast opening and accurate calculation, reading and writing the common spreadsheet formats natively, updated to 1.12.62 in September 2026 and published under GPLv2 or GPLv3.

Logseq is an open source knowledge base where every line is a block: inline it into an outline or point at it from another page. Daily notes, card review and queries cover writing, revisiting and gathering.

Word processing, spreadsheets, presentations, drawing, databases and formulas in one free package, maintained by a foundation rather than a vendor, with documents that save to an open format by default.

Press enter for a node, drag to change the level, pick a structure and start filling a ready-made skeleton: a mapping tool whose presentation mode saves you from rebuilding the same diagram as slides.

Write a Python expression in a cell instead of a nested formula, and get back a number, an array or a figure. The whole scientific stack is importable, so the grid doubles as an executable notebook.

Changing suites is never about features, it is about formatting: a carefully laid out document arrives with drifted fonts and shifted tables. SoftMaker Office reads those formats natively instead of converting them.

Most mapping tools spend their effort on looking good. Freeplane spends it on being capable: nodes carry attributes, formulas, dates and priorities, and a filter can hide everything that does not answer the question you are asking.

Combining dozens of scans into one file, or breaking a thick volume into chapters, is the most ordinary request in the world and the one most often mishandled. PDFsam Basic does both locally, with no limit, no watermark and nothing uploaded.

In distributed work the hardest account to keep is not money but time: who put how much into which project, what a contractor invoice should be based on, whether the daily load is sane. Hubstaff records on duty hours, activity and app usage in the background, builds timesheets automatically and turns them into payroll.

Anytype writes to the device first, syncs between devices over an encrypted peer to peer network where relays only forward ciphertext, and organises everything as objects that can relate to each other. Open source, free for personal use.

Clockify puts the useful parts of time tracking into a free plan with no user cap, then carries the record through reports, approval and a PDF invoice without leaving the same tool.

A to do list that lives in the terminal: one command records a task, another brings it back. Tasks carry projects, tags, priority, dates, estimates and dependencies, repeating items are defined once, and the whole store is a file on your own machine.