Linux

Free, open-source note-taking with rich text, cross-platform support, syntax highlighting, embedded files, and customizable interface.

Freeplane is a powerful and free software for building mind maps. It is a redesigned version of the well known FreeMind , and is created by one of FreeMind's key developers.

Open source vector graphics editor supporting SVG with features like custom brushes, pressure sensitivity, and layer management across multiple platforms.

Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.

Eclipse is an extensible development platform with runtimes and application frameworks for building, deploying and managing software across the entire software lifecycle. Many people know Eclipse as a Java IDE, but it is much more than that- Eclipse actually consists of over 60...

Open-source DTP tool with flexible layouts, typesetting, CMYK support, and interactive PDFs, ideal for creating newspapers and brochures.

Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow.

A free, open-source painting program for professional artists offering customizable UI, 9 brush engines, layer support, and color management.

Desktop application to manage of various types of collections (books, comics, films, TV shows, music, games, wines, stamp, coins, etc...).

Free cross-platform DAW supporting VST plugins, MIDI, and lossless audio. Offers music loopers and sequencers with privacy, no ads, and offline capability.

Free open-source suite with advanced photo retouching, composition, batch processing, plugin extensibility, custom scripting, and wide file format compatibility.

Zim brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup or directly typing some lightweight markup syntax and see it previewed as-you-type. Creating a new page is easy by either clicking on the "Create new note"...

Picard is the next generation MusicBrainz tagging application. This new tagging concept is album oriented, as opposed to track/file oriented like the ClassicTagger was. Picard is written in Python, which is a cross-platform language, and makes use of cross-platform libraries -...

htop is an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses. htop is an interactive top replacement that runs in the terminal. The available columns are: PID, STATE, PPID, PGRP, SESSION, TTY_NR, TPGID, MINFLT...

Graphical GNOME application that analyzes disk usage with detailed graphical representation, supporting scans of both local and remote directories.

Open-source tool for dynamic file and folder comparisions, syntax highlighting, offline functionality, and version control integration.

Erase unnecessary files like cache and cookies, maintain privacy, and optimize disk space on Linux and Windows. Supports various applications and uses.

Free open-source 3D software for modeling, texturing, rigging, animation, rendering, compositing, video editing, and simulation.