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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
nsyncC library that exports various synchronization primitivesnullhubManagement console for the Null ecosystemnumdiffPutative files comparison tooloatppLight and powerful C++ web frameworkoggzCommand-line tool for manipulating Ogg filesokshPortable OpenBSD ksh, based on the public domain Korn shell (pdksh)omakeBuild system designed for scalability, portability, and concisionomegaPackaged search engine for websites, built on top of XapianonedplC++ standard library algorithms with support for execution policiesopendbxLightweight but extensible database access library in CopenhmdFree and open source API and drivers for immersive technologyopensca-cliOpenSCA is a supply-chain security tool for security researchers and developersorbuculumArm Cortex-M SWO/SWV Demux and PostprocessOscilloscopeMimic the aesthetic of ray-oscilloscopesosx-trashAllows trashing of files instead of tempting fate with rmOutFoxExtensible rhythm game engine based on StepManiapackccParser generator for CpangeneConstruct pangenome gene graphspapeerConvert websites into eBooks and MarkdownpawkPython line processor (like AWK)pdfsandwichGenerate sandwich OCR PDFs from scanned filepearPeer-to-peer application runtimepegProgram to perform pattern matching on textpegtlParsing Expression Grammar Template LibrarypgstreamPostgreSQL replication with DDL changesphodavWebDav server implementation using libsoup (RFC 4918)picocC interpreter for scriptingpioneersSettlers of Catan clonepktanonPacket trace anonymizationplaTool for building Gantt charts in PNG, EPS, PDF or SVG formatplowshareDownload/upload tool for popular file sharing websitespng2icoPNG to icon converterpokeExtensible editor for structured binary datapokerstovePoker evaluation and enumeration softwareportable-libxcryptExtended crypt library for descrypt, md5crypt, bcrypt, and othersportable-zlibGeneral-purpose lossless data-compression libraryPostgresPrefsPreference Pane for controlling PostgreSQL database serversproxifyPortable proxy for capturing, manipulating, and replaying HTTP/HTTPS trafficpulpBuild tool for PureScript projectsPulse SMSDesktop client for Pulse SMSpurescript-language-serverLanguage Server Protocol server for PureScriptqcliReport audiovisual metrics via libavfilterqpCommand-line (ND)JSON queryingqrkeyGenerate and recover QR codes from files for offline private key backupquasi88PC-8801 emulatorrake-completionBash completion for Rakerandomize-linesReads and randomize lines from a file (or STDIN)rbenv-aliasesMake aliases for Ruby versionsrdateSet the system's date from a remote hostreaderwriterqueueFast single-producer, single-consumer lock-free queue for C++redstoreLightweight RDF triplestore powered by Redlandregex-optPerl-compatible regular expression optimizerreliableSimple packet acknowledgement system for UDP-based protocolsreqSimple and opinionated HTTP scripting languagereveal-mdGet beautiful reveal.js presentations from your Markdown filesrfcstripStrips headers and footers from RFCs and Internet-DraftsrgxgC library and command-line tool to generate (extended) regular expressionsrinetdInternet TCP redirection serverrlogFlexible message logging facility for C++rmateEdit files from an SSH session in TextMate