The renderer in MuPDF is tailored for high quality anti-aliased graphics. It renders text with metrics and spacing accurate to within fractions of a pixel for the highest fidelity in reproducing the look of a printed page on screen.

MuPDF is also small, fast, and yet complete. It supports PDF 1.7 with transparency, encryption, hyperlinks, annotations, searching and more. It also reads XPS and OpenXPS documents. MuPDF is written modularly, so features can be added on by integrators if they so desire.

Seafile, lets you store your files and data on a central server and synchronize them with PCs and mobile devices. Seafile synchronizes your data between the Seafile server and the Seafile client applications installed on your laptops, desktops, smartphones, and tablets.

Seafile server is available for Windows and Linux operating systems and the Seafile client application is available for Windows, Mac, Linux, Android, and iOS. In addition to using Seafile clients, you can also use the web interface to access your files and data stored in Seafile server.

Seafile lets you create libraries where you can upload and organize your files. You can sync each library separately. While synchronizing your files, Seafile handles file conflicts, and transfers the data which is not already available in the server preventing unnecessary bandwidth usage. Using Seafile, you can sync your files with two or more servers and the file transfers can be resumed. Also, Seafile comes with full version control mechanism.

TMSU is a tool for tagging your files. It provides a simple command-line tool for applying tags and a virtual filesystem so that you can get a tag-based view of your files from within any other program.

TMSU does not alter your files in any way: they remain unchanged on disk, or on the network, wherever you put them. TMSU maintains its own database and you simply gain an additional view, which you can mount, based upon the tags you set up. The only commitment required is your time and there's absolutely no lock-in.

tagfs - Fuse tag file system. unfortunately it seems be able to tag at directory level only.

Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.

neovim is a project that seeks to aggressively refactor vim source code in order to achieve the following goals:

• Simplify maintenance to improve the speed that bug fixes and features get merged.
• Split the work between multiple developers.
• Enable the implementation of new/modern user interfaces without any modifications to the core source.
• Improve the extensibility power with a new plugin architecture based on coprocesses. Plugins will be written in any programming language without needing explicit support from the editor.

By achieving these goals, new developers will be more inclined to join the community, consequently improving the editor for all users.

Taskwarrior is an open-source cross platform command-line task management tool. It allows you to capture, annotate, manipulate and present your tasks, then sync them among devices.

Probably one of the most if not the most popular mind mapping application for Linux.

In 2008, it was nominated for Best Project category in SourceForge.net's Community Choice Awards. Free mind is written in Java making it portable across multiple platforms. As with other mind mapping software packages, it allows the user to edit a hierarchical set of ideas around a central concept.

Sx server is a reliable, fully distributed cluster solution for your data storage needs, released under the GPL licence. With Sx you can aggregate the disk space available on multiple servers and merge it into a single storage system. The cluster makes sure that your data is always replicated over multiple nodes (the exact number of copies is defined by the sysadmin) and synchronized. Additionally Sx has built-in support for deduplication, client-side encryption, on-the-fly compression and much more.

Support for the S3 API is provided by the LibreS3 free add-on, which must be installed separatedly.

• Enables you to access your mail anytime, anywhere.
• Does not slow you down. If we can improve the productivity of an e-mail user, we better do.
• Respects open standards and facilitate modern technologies. We value the vendor-neutrality that IMAP provides and are committed to be as interoperable as possible.
• Is efficient -- be it at conserving the network bandwidth, keeping memory use at a reasonable level or not hogging the system's CPU.
• Can be used on many platforms. One UI is not enough for everyone, but our IMAP core works fine on anything from desktop computers to cell phones and big ERP systems.
• Plays well with the rest of the ecosystem. We don't like reinventing wheels, but when the existing wheels quite don't fit the tracks, we're not afraid of making them work.

git-annex allows managing files with git, without checking the file contents into git. While that may seem paradoxical, it is useful when dealing with files larger than git can currently easily handle, whether due to limitations in memory, time, or disk space.

git-annex is designed for git users who love the command line. For everyone else, the git-annex assistant turns git-annex into an easy to use folder synchroniser.

Tails is a live operating system, that you can start on almost any computer from a DVD, USB stick, or SD card. It aims at preserving your privacy and anonymity, and helps you to:

• use the Internet anonymously and circumvent censorship;
• all connections to the Internet are forced to go through the Tor network;
• leave no trace on the computer you are using unless you ask it explicitly;
• use state-of-the-art cryptographic tools to encrypt your files, emails and instant messaging.

ImageMagick is a free and open-source software suite for displaying, converting, and editing raster image and vector image files. It can read and write over 200 image file formats. ImageMagick is licensed under the Apache 2.0 license.

di Richard Stallman

Quando definiamo “libero” il software, intendiamo che rispetta le libertà essenziali degli utenti: la libertà di eseguire il programma, di studiare il programma e di ridistribuire delle copie con o senza modifiche. Questa è una questione di libertà, non di prezzo. Per capire il concetto, bisognerebbe pensare alla “libertà di parola” e non alla “birra gratis” [NdT: il termine free in inglese significa sia gratuito che libero, in italiano il problema non esiste].

A simple, powerful, and free open-source video editor for Linux with a focus on usability, flexibility, and style.

RetroShare is a Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.
It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

“MMA—Musical MIDI Accompaniment” is an accompaniment generator. It creates MIDI tracks for a soloist to perform over from a user supplied file containing chords and MMA directives.

MMA is very versatile and generates excellent tracks. It comes with an extensive user-extendable library with a variety of patterns for various popular rhythms, detailed user manuals, and several demo songs.

MMA is a command line driven program. It creates MIDI files which are then played by a sequencer or MIDI file play program.

(FuZzy Finder) is a general-purpose command-line finder with fuzzy search/filter capabilities; good integration with vim.

Powerful enough to form a complete studio, fast and light enough to run on low-end hardware like the eeePC or Raspberry Pi, and so responsive and reliable that it can be used live, the Non DAW Studio is a modular system composed of four main parts: Non Timeline, a non-destructive, non-linear audio recorder and arranger. Non Mixer, a live mixer with effects plugin hosting and advanced Ambisonics spatialization control. Non Sequencer, a live, pattern based MIDI sequencer, and finally, the Non Session Manager to tie together these applications and more into cohesive song-level units.