| umlet | Free, open-source UML tool with a simple user interface |
| faad2 | Open source MPEG-4 and MPEG-2 AAC decoder |
| emacsPackages.sis | |
| perlPackages.ack | Grep-like tool tailored to working with large trees of source code |
| davs2 | Open-source decoder of AVS2-P2/IEEE1857.4 video coding standard |
| tt2020 | Advanced, open source, hyperrealistic, multilingual typewriter font for a new decade |
| xavs2 | Open-source encoder of AVS2-P2/IEEE1857.4 video coding standard |
| krank | Krank checks issue tracker link status in your source code |
| qgrep | Fast regular expression grep for source code with incremental index updates |
| redis | Open source, advanced key-value store |
| maple-mono.NL-Woff2 | Open source No Ligature WOFF2.0 font with round corner and ligatures for IDE and command line
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| maple-mono.woff2 | Open source WOFF2.0 font with round corner and ligatures for IDE and command line
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| nspr | Netscape Portable Runtime, a platform-neutral API for system-level and libc-like functions |
| lexbor | Open source HTML Renderer library |
| lucide | Open-source icon library that provides 1000+ icons |
| perl5Packages.ack | Grep-like tool tailored to working with large trees of source code |
| taisei | Free and open-source Touhou Project clone and fangame |
| sympa | Open source mailing list manager |
| nika-fonts | Persian/Arabic Open Source Font |
| ormolu | A formatter for Haskell source code |
| julius | Open source re-implementation of Caesar III |
| moodle | Free and open-source learning management system (LMS) written in PHP |
| quarto | Open-source scientific and technical publishing system built on Pandoc |
| dcfldd | Enhanced version of GNU dd |
| open-fonts | Collection of beautiful free and open source fonts |
| perlPackages.DirSelf | __DIR__ constant for the directory your source file is in |
| cproto | Tool to generate C function prototypes from C source code |
| chiaki | Free and Open Source PlayStation Remote Play Client |
| jimtcl | Open source small-footprint implementation of the Tcl programming language |
| rtrlib | Open-source C implementation of the RPKI/Router Protocol client |
| dnsmap | Scan for subdomains using brute-force techniques |
| cpp-netlib | Collection of open-source libraries for high level network programming |
| ark-pixel-font | Open source pan-CJK pixel font |
| mapnik | Open source toolkit for developing mapping applications |
| texlivePackages.vpe | Source specials for PDF output |
| perl5Packages.DirSelf | __DIR__ constant for the directory your source file is in |
| abseil-cpp | Open-source collection of C++ code designed to augment the C++ standard library |
| hackrf | Open source SDR platform |
| silice | Open source language that simplifies prototyping and writing algorithms on FPGA architectures |
| inspec | Open-source testing framework for infrastructure with a human- and machine-readable language for specifying compliance, security and policy requirements |
| openrw | Unofficial open source recreation of the classic Grand Theft Auto III game executable |
| haskellPackages.osv | Open Source Vulnerability format |
| survex | Free Software/Open Source software package for mapping caves |
| niimath | Open-source clone of fslmaths |
| haskellPackages.hob | A source code editor aiming for the convenience of use |
| perlPackages.Filter | Source Filters |
| maple-mono.NL-TTF-AutoHint | Open source No Ligature monospace ttf autohint font with round corner and ligatures for IDE and command line
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| jenkins | Extendable open source continuous integration server |
| kvazaar | Open-source HEVC encoder |
| lxgw-wenkai | Open-source Chinese font derived from Fontworks' Klee One |
| haskellPackages.tabs | Indents source files |
| vimPlugins.cmp-async-path | Nvim-cmp source for filesystem paths with async processing |
| jsoncpp | C++ library for interacting with JSON |
| openslp | Open-source implementation of the IETF Service Location Protocol |
| haskellPackages.hfmt | Haskell source code formatter |
| akkuPackages.rapid-read | Scheme reader with source-location information |
| manrope | Open-source modern sans-serif font family |
| groonga | Open-source fulltext search engine and column store |
| nuspell | Free and open source C++ spell checking library |
| public-sans | Strong, neutral, principles-driven, open source typeface for text or display |
| perl5Packages.Filter | Source Filters |
| maple-mono.Normal-NF | Open source Normal Ligature Nerd Font font with round corner and ligatures for IDE and command line
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| maple-mono.Normal-CN | Open source Normal Ligature monospace CN font with round corner and ligatures for IDE and command line
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| haskellPackages.loch | Support for precise error locations in source files |
| haskellPackages.scan | lexical style suggestions for source code |
| spoofer | Assess and report on deployment of source address validation |
| libdmtx | Open source software for reading and writing Data Matrix barcodes |
| maple-mono.opentype | Open source OpenType font with round corner and ligatures for IDE and command line
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| maple-mono.Normal-OTF | Open source Normal Ligature OpenType font with round corner and ligatures for IDE and command line
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| maple-mono.NormalNL-CN | Open source Normal No Ligature monospace CN font with round corner and ligatures for IDE and command line
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| maple-mono.NormalNL-NF | Open source Normal No Ligature Nerd Font font with round corner and ligatures for IDE and command line
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| gnumake | Tool to control the generation of non-source files from sources |
| hasklig | Font with ligatures for Haskell code based off Source Code Pro |
| mozart2 | Open source implementation of Oz 3 |
| lzbench | In-memory benchmark of open-source LZ77/LZSS/LZMA compressors |
| elmPackages.elm-format | A source code formatter for Elm |
| maple-mono.Normal-TTF | Open source Normal Ligature monospace TrueType font with round corner and ligatures for IDE and command line
|
| maple-mono.truetype | Open source monospace TrueType font with round corner and ligatures for IDE and command line
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| behdad-fonts | Persian/Arabic Open Source Font |
| rhvoice | Free and open source speech synthesizer for Russian language and others |
| maple-mono.NormalNL-OTF | Open source Normal No Ligature OpenType font with round corner and ligatures for IDE and command line
|
| perl538Packages.ack | Grep-like tool tailored to working with large trees of source code |
| maple-mono.Normal-NF-CN | Open source Normal Ligature Nerd Font CN font with round corner and ligatures for IDE and command line
|
| maple-mono.NormalNL-TTF | Open source Normal No Ligature monospace TrueType font with round corner and ligatures for IDE and command line
|
| texlivePackages.detex | Strip TeX from a source file |
| texlivePackages.exsol | Exercises and solutions from the same source, into a book |
| _0xproto | Free and Open-source font for programming |
| maple-mono.NormalNL-NF-CN | Open source Normal No Ligature Nerd Font CN font with round corner and ligatures for IDE and command line
|
| haskellPackages.hlint | Source code suggestions |
| haskellPackages.wryte | Pretty output for source generators |
| cmakeWithGui | Cross-platform, open-source build system generator |
| cmakeCurses | Cross-platform, open-source build system generator |
| spoofer-gui | Assess and report on deployment of source address validation |
| quartoMinimal | Open-source scientific and technical publishing system built on Pandoc |
| haskellPackages.loch-th | Support for precise error locations in source files (Template Haskell version) |
| haskellPackages.hgrep | Search Haskell source code from the command line |
| haskellPackages.fresh | Introduce fresh variables into Haskell source code |
| perlPackages.PerlCritic | Critique Perl source code for best-practices |
| maple-mono.Normal-Woff2 | Open source Normal Ligature WOFF2.0 font with round corner and ligatures for IDE and command line
|
| clarity-city | Open source sans-serif typeface |