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Open-source Mac apps
Applications and command-line tools with a public source repository, ranked by install count. Open source is not a quality guarantee, but it does mean the code can be audited and the app cannot be taken away from you.
Developer ToolsTerminal & ShellDevOps & CloudSecurity & PrivacyAI & Machine LearningData & DatabasesDesign & GraphicsVideo & AudioNetworkingProductivityCommunicationSystem & UtilitiesBrowsersCommand-Line ToolsUtilities
libmpsMemory Pool SystemlibmwawLibrary for converting legacy Mac document formatslibnetfilter-queueUserspace API to packets queued by the kernel packet filterlibnfnetlinkLow-level library for netfilter related communicationlibomemo-cImplementation of Signal's ratcheting forward secrecy protocollibopingC library to generate ICMP echo requestslibplctagPortable and simple API for accessing AB PLC data over EthernetlibquantumC library for the simulation of quantum mechanicslibrasterlite2Library to store and retrieve huge raster coverageslibrevengeBase library for writing document import filterslibstatgrabProvides cross-platform access to statistics about the systemlibuclUniversal configuration library parserlibueccVery small Elliptic Curve Cryptography librarylibvisual-pluginsAudio Visualization tool and librarylibvisual-projectmVisualization plug-in for projectM support from LibvisuallibwapcapletString internment librarylibxdg-basedirC implementation of the XDG Base Directory specificationslibxfontX.Org: Core of the legacy X11 font systemlibxpX Print Client LibrarylibxvmcX.Org: X-Video Motion Compensation APILivebook NightlyCode notebooks for Elixir developerslndirCreate a shadow directory of symbolic links to another directory treelolcodeEsoteric programming languageLolgatoEnhances control over Elgato lightsloutText formatting like TeX, but simplerlttng-ustLinux Trace Toolkit Next Generation Userspace Tracerlunar-dateChinese lunar date librarylunasvgSVG rendering and manipulation library in C++maclaunchManage your macOS startup itemsMailTrackerBlockerEmail tracker, read receipt and spy pixel blocker plugin for Apple MailmairixEmail index and search toolmakeicnsCreate icns files from the command-lineMakeraCAMCAM software for Makera CNCsmantraTool to hunt down API key leaks in JS files and pagesmarcliParse MARC (ISO 2709) filesmarmiteStatic Site Generator for Blogs using MarkdownmcabberConsole Jabber clientmda-lv2LV2 port of the MDA pluginsmdshMarkdown shell pre-processormimicLightweight text-to-speech engine based on CMU FliteminigraphProof-of-concept seq-to-graph mapper and graph generatormkcueGenerate a CUE sheet from a CDmmdbinspectLook up records for one or more IPs/networks in one or more .mmdb databasesmonMonitor hosts/services/whatever and alert about problemsmoxModern full-featured open source secure mail servermpdasC++ client to submit tracks to audioscrobblermpgtxToolbox to manipulate MPEG filesmsc-generatorDraws signalling charts from textual descriptionmscgenParses Message Sequence Chart descriptions and produces imagesmuparserC++ math expression parser librarynaclNetwork communication, encryption, decryption, signatures librarynbimgSmartphone boot splash screen converter for Android and winCEneatviClone of ex/vi for editing bidirectional utf-8 textNethLinkLink NethServer systems and provide remote access toolsnetsurf-buildsystemMakefiles shared by NetSurf projectsneverStatically typed, embedded functional programming languagenifi-registryCentralized storage & management of NiFi/MiNiFi shared resourcesnifi-toolkitCommand-line utilities to setup and support NiFinimblenoteKeyboard-driven note takingnormalizeAdjust volume of audio files to a standard level