Git is a distributed version control system, originally designed for Linux kernel development and large projects with non-linear workflows. It's comprised of individual tools, reuses ssh and rsync protocols, emphasises speed and data integrity, and keeps every checkout as full-fledged repository, and cryptographically authenticates source history. Various graphical frontends, IDE integrations and web services (GitHub) exist; with its git-fast-export format meanwhile serves interoperability with
Fossil is a distributed version control system, quite robust and easy to use. It manages local and remote repositories, user permissions, has a built-in wiki, bugtracker, release blog and an extendable web interface. It's github-in-a-box as all features are packed into a stand-alone executable which also doubles as server. Internally the database utilizes SQLite and allows extending that or its user interface through TCL or the builtin TH1 scripting language. An optional JSON API permits further
BallroomDJ 4 is a ballroom music player. It is designed to play music the entire evening without intervention. Manage your ballroom dance music and create song lists, automatic playlist and sequenced playlists. BallroomDJ 4 is the replacement for BallroomDJ.
Wine is an implementation of the Windows API on top of X and Unix. It does not require Microsoft Windows, but can use native Windows DLLs if they are available. It provides both a development toolkit for porting Windows source code to Unix as well as a program loader, allowing many unmodified Windows programs to run on x86-based Unixes.
Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. We call it clientless because no plugins or client software are required. Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser.
Nmap ("Network Mapper") is a network utility for service discovery, monitoring and security auditing. Nmap utilizes raw IP packets for host discovery, port scanning, OS fingerprinting, firewall probing, and generating various statistics. It permits inspecting large network ranges but also works for single server checks. It's cross-platform compatible and also provides a X11 reporting GUI with Zenmap, and Ncat for data transfer and debugging, Ndiff for result comparison, and Nping for response an
Inadyn is a small and simple DDNS client with HTTPS support, both GnuTLS and OpenSSL are supported. Inadyn is commonly available in many GNU/Linux distributions, used in off-the-shelf routers and Internet gateways to automate the task of keeping your DNS record up to date with any IP address changes from your ISP. It can also be used in installations with redundant (backup) connections to the Internet.
HomeBank helps managing your personal accounting. It's designed for ease of use, and quickly analyzing and tracking your personal finances in detail, has filtering tools and pretty graphing. It can import from Quicken, MS Money, bank statements as OFX, QIF, CSV and QFX. HomeBank also detects duplicate transactions, auto-numbers cheques, handles bank, cash, asset, credit and liability account types, can schedule transactions, internel transfers, and so forth.
dos2unix is a classic command line tool to convert between the different linebreak types of CRLF on DOS/Windows, plain LF on Unix systems, and CR on Mac systems.
rmw (ReMove to Waste) is a trashcan/recycle bin utility for the command line. It can move and restore files to and from directories specified in a configuration file, and can also be integrated with your regular desktop trash folder (if your desktop environment uses the FreeDesktop.org Trash specification). One of the unique features of rmw is the ability to purge items from your waste (or trash) directories after x number of days.
Finit is a SysV init replacement that starts services in parallel for a fast init. It comes with process supervision similar to that of daemontools and runit. Although the focus is on small and embedded GNU/Linux systems, it's fully functional on standard server and desktop installations. Cookies included.
The LV2 drum machine compatible with Hydrogen drumkits (including the modern format). It is based on DrMr plugin, with the goal to make the plugin compatible with modern Hydrogen kits. Other additions/changes: sorted presets order, some code is rewritten in C++.
strace is a diagnostic, debugging and instructional userspace utility for Linux. It is used to monitor and tamper with interactions between processes and the Linux kernel, which include system calls, signal deliveries, and changes of process state. The operation of strace is made possible by the kernel feature known as ptrace.
A simple MIDI player with a mixer (channel volume balance), instrument change and the possibility to save rebalanced MIDI files, optionally with renamed channel names. Based on Qt and QMidi, written in C++. Initially intended for those, who write music, e.g. in Lilypond, to enable "proof-listening" and for musicians to enable easy generation of rehearsal midi files.
SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as O3b, Starlink and Project Kuiper. It shows and animates movement and coverage over the Earth in two and three dimensions. SaVi can optionally use Geomview for 3D rendering.
CMOC is a 6809-generating cross-compiler for a large subset of the C language. It produces executables for the Motorola 6809 processor to be used under the Tandy Color Computer Disk Basic environment, OS-9 and others. It runs under GNU/Linux and other Unix-like environments.
Courier is a mail transfer agent (MTA) and groupware server. It implements IMAP, ESMTP, POP3, LDAP, SSL, HTTP, iCal. It also provides mailing list management, filtering, maildirs storage, and a webmail interface with calendaring and scheduling.
Scid vs. PC is a continuation of Shane's Chess Information Database, which provides a chess toolkit, move database, analysis tools, various chess AI engine bindings or to online servers. It remains database-compatible but adds many usability and feature enhancements, such as a tournament game mode, an overhauled GUI, new gamelists, rating graphs, other analysis engines, and drag and drop support on all platforms.
di is a disk information utility that displays everything that df does and more. It features the ability to display your disk usage in whatever format you prefer. It also checks the user and group quotas, so that the user sees the space available for their use, not the system wide disk space. It is designed to be highly portable across many platforms and is great for heterogenous networks.
FLoM is a tool for synchronizing shell commands and avoiding complex workarounds. It manages process serialization not unlike "nice" handles their prioritization. It allows shell commands to be serialized and synchronized within a single system or a network. It requires little configuration to easily handle common settings.
wxEphe displays Astronomical Ephemeris for The Sun, The Moon, and solar system planets, given date and observer's location.
Gradle is an open-source build automation tool focused on flexibility and performance. Gradle build scripts are written using a Groovy or Kotlin DSL.
FileZilla is a feature-rich FTP, FTPS and SSH FTP client, with support for all major plattforms. All tools are designed to aid moving and synchronizing files between local and remote file or webservers. It even allows multi-target uploading or editing files in-place. FileZilla also sports IPv6, a tabbed interface, resuming up and downloads, transfer speed limits, large files over 4GB, server and bookmark management, drag and drop, filtering, HTTPS / SOCKS5 / FTP proxying, and remote file searchi
This is the bsd-games package for Linux, containing classic text mode games from the UNIX folklore.
Gfarm is a network shared filesystem and alternative to NFS, but optimized for reliability, scaling and access from wide area network. It can federate local disks of network-connected PCs and compute nodes in several clusters, and supports explicit replica location control by users. Plugins exist for FUSE, Zabbix, Hadoop, Samba, MPI-IO, GridFTP, S3 MinIO, Nextcloud, Spack and a Linux kernel module is under development.
Haxe is an cross-language development toolkit. It implements a modern, high level, strictly typed programming language. Comes with a cross-compiler for multiple target languages (iOS, Android, Java, C++, C#, HTML5, NodeJS, Python, PHP, Lua). It brings along its own standard library, but still provides ways to access each platforms native capabilities.
ConsoleKit2 is a continuation fork of ConsoleKit for managing user sessions, logins, and tracking seats. It's an alternative to systemd-logind, and intended for XFCE as compatibility layer to run on the various BSD systems. It integrates many patches since ConsoleKit was unmaintained, utilizes recent dbus, glib, X11, libkvm, PAM, udev, inotify and pm-utils bindings.
Gambas is an IDE and BASIC interpreter with object-oriented extensions. It's designed to ease building graphical applications programs using Gtk+ or Qt, and runs on most Unix and Linux systems. With its runtime standalone applications can be packaged, even command-line programs. The Gambas3 JIT-compiling interpreter often executes faster than Perl or Python apps. It also supports SDL, OpenGL and OpenAL, MySQL or PostgreSQL databases, CGI webserver interfacing,
libUseful is a general 'C' library providing useful functions related to: resizable strings, lists and maps, unix and tcp sockets, SSL/TLS, cryptographic hashes, parsing of json, yaml and other markup languages, terminal output including ANSI/vt100 escape sequences, OAuth 2.0, etc, etc.
Evince is a document viewer for multiple document formats. The goal of evince is to replace the multiple document viewers that exist on the GNOME Desktop with a single simple application. Evince is specifically designed to support the file following formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt). For a comprehensive list of formats supported, see Supported Document Formats.
CAWT is a TWAPI-based TCL utility package to interact with COM interfaces on Windows systems. It provides specialised bindings for Word, Excel, PowerPoint, MSIE, Outlook, Matlab, and Google Earth.
Rspamd is an advanced spam filtering system featuring support for various internal and external filters such as regular expressions, suffix tries, RBLs, URL black lists, IP lists, SPF, DKIM, character maps, advanced statistics module (based on OSB-Bayes algorithm) and fuzzy hashes database that is generated based on honeypots traffic. Rspamd is designed to process hundreds of messages per second simultaneously without significant CPU load.
OpenSSH is a BSD/Linux implementation of SSH1 and SSH2 for encrypted terminal connections, tunneling and file transfers. It includes the sshd server, scp and sftp, and various utility tools such as ssh-add, ssh-agent, ssh-keysign, ssh-keyscan, ssh-keygen, and the sftp-server.
Gross is a greylisting server. The features that make gross stand out from other greylisters are: - it's blazingly fast - it's amazingly resource efficient - it can be configured to query DNSBL databases, and enforce greylisting only for hosts that are found on those databases - it can block hosts that match multiple DNSBL's - it can be replicated and run parallel on two servers - It supports Sun Java System Messaging Server, Postfix, Sendmail and Exim.
A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file. Features: rich text formatting and colorization, syntax highlighting, images handling, embedded files, lists handling, simple tables, codeboxes, text/image/table alignment, hyperlinks, spell checking, cross application copy/paste, export to html or plain text, table-of-contents generation, extensive search function. It can import from Basket, Cherrytree, Epim html, G
FFmpeg is the leading framework for decoding, encoding, transcoding, muxing, demuxing, streaming, filtering and playing pretty much any media format. It supports widespread and standardized, proprietary and fringe file formats and encodings. It's comprised of the ffmpeg, ffserver, ffplay and ffprobe utilities. But also provides libavcodec, libavutil, libavformat, libavfilter, libavdevice, libswscale and libswresample for application use. Its primary development attention is on security.
Bypassing slowaes web-scraping protection aes.js slowAES.decrypt(c, 2, a, b) algorithym with esp8266 (nodemcu) HttpClient object with __test cookie
bigz is a simple but feature-rich C library for bignum calculations. It's the continuation of an old BigNum project originally begun as a research project. Current releases include many fixes, extensions and improvements. It's not as efficient as GMP, but comes with a smaller footprint, provides Z+Q infinite precision, and is rather portable and multi-thread safe.
APCComm is a program to transfer files between an Amiga and a Linux PC using a parallel laplink cable or serial null modem cable. It's able to transfer files and whole directories.
Firejail is a security sandbox tool, which utilizes Linux 3.x namespaces to setup restricted environments for untrusted applications. It works for console and graphical applications, servers, or even login sessions; by assigning them and their subprocesses a private view of globally shared kernel resources. Firejail isolates mount points, adds chrooting, filesystem writability or overlays, sandbox filesystem sharing, networking stack and firewall isolation, constrains interprocess communication,
Pidgin is a widely-used and featureful instant messenger and chat client. It supports AIM, Bonjour, Gadu-Gadu, Google Talk, Groupwise, ICQ, IRC, MSN, MXit, GroupWise, SILC, SIMPLE, Sametime, XMPP (Jabber), Yahoo!, Zephy. It provides friend lists across chat networks, file transfers, avatars, custom smileys, typing status display, away messages, and many more features (encryption, audio alerts, LED notification, IRC scripting, SMS gateways, sessions, auto-replys) and IM services (Tor, Twitter, Wh
d11amp is a frontend to MPG123, trying to resemble WinAmp, utilizing its treasure trove of themes. It looks oldskool and is fun to use!
Libinklevel is a library that checks the status of printer ink levels. It works on Linux and FreeBSD. Supported are HP, Epson and Canon printers attached per USB. Canon BJNP network printers are supported too.
Add checksums to Nautilus' properties window
The utility to copy file with buffer synchronize after each copying iteration. Good for copy large file to USB stick when copying is slow or stalled (and vm.dirty_bytes and vm.dirty_background_bytes settings does not help).
GNUIsance is a GTK4 library that aims to create a consistent repository of widgets and utilities that users might need only from time to time. By design, these can be accessed altogether (-lgnuisance), or it is possible to link only the single widgets required for an application (-lgnuitaggedentry, -lgnuiflow, etc.).
SDL_bgi is a graphics library (`GRAPHICS.H`) for C, C++, WebAssembly, and Python. SDL_bgi is fully compatible with BGI, the Borland Graphics Interface that was the de-facto standard in PC graphics back in DOS days. It's very easy to use, pretty fast, and it also provides extensions for ARGB colours, mouse support, vector fonts, and turtle graphics. It should run on any platform supported by SDL2.
Expat is a stream-oriented XML parser library written in C99. It excels with files too large to fit RAM, and where performance and flexibility are crucial. There are a number of applications, libraries and hardware using Expat, as well as bindings and 3rd-party wrappers. Expat is packaged everywhere.
Elm Millennium Edition 2.5 (or Elm ME+ 2.5) is based on Elm 2.4 and incorporates some code from Elm 2.5. It contains enhanced MIME and character set support. A subset of UTF-8 (Unicode) is handled. It can read mail from a local mbox and POP or IMAP folders and can pass mail to the PGP or GPG programs. It can also view digests as a mailbox and reassemble fragmented (message/partial) messages. It includes modules for TLS/SSL, iconv, resolv, and SMTP.
Direct Turkish character usage for 16x2 LCD screens parallel mode, adjustable backlight and contrast adjustment by code.
Gwyddion is a modular SPM (Scanning Probe Microsope) data visualization and analysis tool. It can be used for all most frequently used data processing operations including: leveling, false color plotting, shading, filtering, denoising, data editing, integral transforms, grain analysis, profile extraction, fractal analysis, and many more. The program is primarily focused on SPM data analysis (e.g. data obtained from AFM, STM, NSOM, and similar microscopes). However, it can also be used for analyz
A simple Nautilus extension that adds “Hide” and “Unhide” to Nautilus right-click menu. Nautilus Hide does not add a leading dot to file names, but relies on Nautilus' ability to hide the files that are listed in a .hidden file. The extension erases the .hidden files when these are empty and is able to handle selections of files that are distributed across multiple locations.
Linux program for writing Microsoft compatible boot records. This program does the same as Microsoft "fdisk /mbr" to a hard disk or "sys d:" to a floppy or FAT32 partition except that it does not copy any system files, only the boot record is written.
A planetarium software that renders a 3D simulation of the night sky. * default catalogue of over 600,000 stars * extra catalogues with more than 177 million stars * default catalogue of over 80,000 deep-sky objects * extra catalogue with more than 1 million deep-sky objects * asterisms and illustrations of the constellations * constellations for 20+ different cultures * images of nebulae (full Messier catalogue) * realistic Milky Way * very realistic atmosphere, sunrise and sunset * the plane
Inkscape is vector graphics software for creating icons, illustrations, logos, diagrams, maps and web graphics. It's cross-platform, extremely feature-rich yet simple to use, and extendable. Users therefore include design professionals as well as hobbyists. It's engineered around the open and standard SVG (Scalable Vector Graphics) format. Its sophisticated drawing tools easily match up to Adobe Illustrator, CorelDRAW and Xara Xtreme. Inkscape also can import and export to AI, Encapsulated/Posts
darktable is an open source photography workflow application and RAW developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.
The package-update-indicator utility regularly checks for software updates and notifies the user about available updates using desktop notifications and either a status notifier icon or a system tray icon.
userver is a non-forking, single-threaded HTTP-server using non-blocking I/O for static files only. It implements only a small subset of HTTP/1.0 and Gopher. Additional functionality can be selected at compile-time. userver can be compiled as gawk extension too, doing the protocol part leaving request handling to the gawk script.
Vortex Library is an implementation of the RFC 3080 and RFC 3081 standard definitions, known as the BEEP Core protocol, implemented on top of the TCP/IP stack. It comes with complete XML-RPC over BEEP RFC 3529 support, complete support for the TUNNEL profile (which allows you to perform proxy operations for every BEEP profile developed), support for HTTP proxies, and more. The API is consistent, easy to use, and allows you to write application protocols very quickly. The API is designed to allow
cpuid dumps detailed information about the CPU(s) gathered from the CPUID instruction, and also determines the exact model of CPU(s) from that information.
NExtGen is an interactive Bash script that lets you easily set up a new extension project for GNOME Files. All you have to do is to launch the script and answer a few questions.
As it is often the case with network applications, GNUnet is built following a single-threaded event-driven model. This is an optimal model when dealing with high concurrency scenarios, but can be problematic in other contexts (like, for example, graphical user interfaces, which normally have their own event loop). To accomplish its event-driven flow, GNUnet uses a scheduler. Once such scheduler is started, it is not designed to be invoked by other threads, but can schedule only routines reques
GNU PSPP is a program for statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions.
Dateutils are a bunch of tools that revolve around fiddling with dates and times in the command line, with a strong focus on use cases that arise when dealing with large amounts of financial data. Their target market is shell scripts that need date calculations or calendar conversions, and as such they are highly pipe-able and modeled after their well-known cousins (e.g. dtest vs. test, or dgrep vs. grep).
DMD2TUR kütüphanesi sayesinde P10 led panellerde Türkçe karakter kullanabilirsiniz.
sntpd is a small SNTP server and client for UNIX systems, implementing RFC 1305 and RFC 4330. Its functionality is only a small subset of ntpd, chrony, and OpenNTPd. Since it is much smaller it is also more relevant for embedded systems in need of only a background process to keep the system time in sync (client mode).
Dohd (pron. doh-dee) is a minimalist DNS-over-HTTPS daemon that redirects all DoH queries to a traditional DNS server open to UDP queries. Features: support for RFC8484 DNS-over-HTTPS over HTTP/2, optimized and readable C code below 1500 locs, privacy focus.
HarfBuzz is a text shaping engine. It primarily supports OpenType, but also Apple Advanced Typography. HarfBuzz is used in Android, Chrome, ChromeOS, Firefox, GNOME, GTK+, KDE, LibreOffice, OpenJDK, PlayStation, Qt, XeTeX, and other places.
Automatic Drawing Generation is a GObject-based library that provides a non-interactive Cairo canvas specifically designed for generating technical drawings. It is intended to be used by software developers to integrate mass customization applications or to supersede parametric CAD workflows.
Julia is a high-level, dynamic, and JIT-compiled programming language for technical computing. It integrates distributed multiple-dispatch parallel execution, a mathemetical function library, numerical accuraccy, libraries for linear algebra, signal processing, Unicode-aware string processing, Lisp-like macros, Python code bondings, C function wrapping, user-defined and dynamic typing.
Hashrat is a command-line utility that hashes things using md5, sha1/256/512, whirlpool and jh hash algorithms. It's written in C with few dependancies (basically just the standard C library). It can read input from standard in and hash it, either as a complete file, or line-by-line. It can recursively hash files on disk, either outputing hashes to stdout, or storing them in filesystem attributes, or in a memcached server. It can check files against a list of hashes supplied on stdin, or in t
VICE is a program that runs on a Unix, DOS, Win32, OS/2, BeOS, Amiga or Mac OS X machine and executes programs intended for the old 8-bit computers. The current version emulates the C64, the C64DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610/C510). An extra emulator is provided for C64 expanded with the CMD SuperCPU. VICE is *free* software released under the GNU General Public License, and as such it comes with full source code.
This library contains a function that parses simple configuration files that use a key/value pair with optional attributes.
OpenRA is a real time strategy gaming engine, which reimplements Command & Conquer: Red Alert and Tiberian Dawn mods, as well as Dune 2000. They're not exact copies, but allow modern cross-platform gameplay with new features and graphical improvements.
Npgsql is a .NET data provider for Postgresql 9.0 and later. It's implemented completely in C# 3.0 and thus does not require a client library. Allows complete database querying and CRUD interaction, has some support for ADO.NET 2.0, provides logging support, allows :colon or @prefix parameter binding, and native large object support.
uftpd is a small FTP/TFTP server. No configuration files, no hassle, it just works!
Replacement for old libnss-mysql as naming service library in Linux. You can store user information in MariaDB/MySQL database. E.g. `ls` then automatically shows user name from the database, `getent` shows users and groups. ## Features - implements `password`, `shadow` and `group` getters - `cmake` build system - `libconfig` for configuration - uses direct queries and `real_escape_string` - uses `threads.c` from `C11` - requirements: `Glibc 2.28`, `GCC 8`, equivalent of `Debian 10` (*Buster*)
VSTRING provides dynamic strings and char* compatibility and also Perl-like arrays, hashes and regexp objects. The dynamic string object can be freely exchanged with standard char* type, so there is no need to change function calls nor the implementation when you change from char* to String (and vice versa). The main difference from other similar libs is that the dynamic string class has no visible methods (except operators) so you will use it as a plain char* but it will expand/shrink as neede
PCRE is a widely used Unicode-compatible regular expression engine. It implements Perl5 regex syntax and semantics, some Python, .NET and Onigurama extensions. It uses just-in-time compilation, has consistent escaping rules, and allows for recursion, assertions and conditional patterns or complex subroutines and callouts, thus goes far beyond classic regular expressions.
mulle-c-string-escape turns data into C-strings. Non-ASCII characters will be escaped to hex or octal. C-escapes are used for known C escapes like '\b'. The output is separated into lines of approximately even length and does not exceed the chosen line length. You can feed it binary or text files.
mrouted is an implementation of the IPv4 multicast routing protocol DVMRP, RFC 1075. It is capable of turning a UNIX workstation, or Linux device, into a multicast router with tunneling support. Support for IGMPv1, IGMPv2, and IGMPv3. Comes with mroutectl for interacting with the daemon.
An Apache httpd module that implements a contact us form with file upload. Acts as a gateway between a form submission and email.
The Apache mod_multipart module provides a set of filters that can parse and interpret multipart MIME content.
Designed to perform security audits against websites that have been made available without SSL enabled.
The Apache mod_rrd module provides a set of filters and handlers to manipulate and display RRD graphs.
Tarmux attempts to solve the problem of handling streamed data where there is insufficient temporary space on disk to hold the data, as is forced by tar. In the simplest invocation, tarmux takes a stream from stdin, and creates a tar file consisting of sequential numbered file fragments one after the other. This can be reversed by the tardemux tool, which will untar the fragments and reassemble the stream to stdout. The tardemux tool only reads a single tar stream before exiting. This allows m
Retry a command until the command succeeds. Retry captures stdin into memory as the data is passed to the repeated command, and this captured stdin is then replayed should the command be repeated. This makes it possible to embed the retry tool into shell pipelines. Retry captures stdout into memory, and if the command was successful stdout is passed on to stdout as normal, while if the command was repeated stdout is passed to stderr instead. This ensures that output is passed to stdout once an
The Apache mod_ical module provides a set of filters to filter RFC5545 iCalendar data and convert it to RFC6321 xCal / RFC7265 jCal.
The Apache mod_magick module provides image filtering for the Apache httpd server. The MAGICK filter converts a response into a magick bucket, which can be transformed by specific downstream magick filters to modify the image. The first filter that attempts to read the bucket will cause the output image to be rendered.
The Embedthis GoAhead™ web server is one of the world’s most popular embedded web server deployed for over 15 years in hundreds of millions of devices by industry leaders and startups. It is compact and requires less than 150K RAM. GoAhead uses an event-driven, non-blocking core to efficiently operate with minimal resources. Coupled with a role-based authentication framework and security sandbox, GoAhead is highly secure. It is easily embedded and ported to create secure web applications.
A lightweight GUI framework for embedded displays Design your GUI with a drag & drop builder, then apply the same code to a wide range of displays, libraries and controllers with the cross-platform Arduino framework supporting Windows, OS X and LINUX. Open source MIT license. Features: - Pure C library, no dynamic memory allocation - Widgets: text, images, buttons, checkboxes, radio buttons, sliders, keypad, listbox, radial controls, scrolling textbox / terminal, graphs, etc. plus extensions a
HandBrake is a video file conversion tool. It supports nearly all formats, can transcode media files and codecs for various platforms, players and devices (includes a user-friendly target list to select from). It has an uncomplicated interface and is available cross-platform.
A C++ library that supports a few operations on boolean expression binary trees. The main features are a simple boolean expression parser, an algorithm to convert a boolean expression tree into its Disjunctive Normal Form, and a function that determines if an expression tree is in DNF. A commmand-line tool can also be used to convert to DNF.
GnuCash is a personal finance and small-business accounting software. It provides a check-book like register GUI to enter and track bank accounts, stocks, income and expenses, for double-entry accounting. It also allows to manage stock/bond/mutual fund accounts, generate graphs and reports, supports QIF/OFX/HBCI import, and transaction matching, common calculations and scheduling. It's still simple to use.
tesseract-ocr is an OCR engine originally developed by Hewlett Packard and now sponsored by Google. It is highly accurate and will read a binary, gray, or color image and output text.
Libexif is a library that can extract and insert EXIF information, in printable and in binary form.