20 categories · 6,516 free open-source tools — every one explained in plain English.
AI AgentsLarge Language ModelsAI ChatbotsAI Coding AssistantsAI Image GenerationAI Video GenerationAI Voice GenerationText-to-Speech
Video EditingVideo GenerationVideo AutomationAnimationMotion GraphicsVideo UpscalingVideo CompressionScreen Recording
Graphic DesignImage EditingPhoto EnhancementVector GraphicsUI DesignUX Design3D Modeling3D Animation
Frontend FrameworksBackend FrameworksFull-Stack ApplicationsWebsite BuildersLanding Page BuildersCSS FrameworksJavaScript LibrariesAuthentication
Android DevelopmentiOS DevelopmentCross-Platform FrameworksMobile UI LibrariesMobile App TemplatesMobile DatabasesMobile AutomationApp Testing
CRM SystemsERP SystemsBusiness AutomationInventory ManagementInvoicingAccounting SoftwareProject ManagementCustomer Support
SEO ToolsKeyword ResearchWebsite AnalyticsMarketing AutomationEmail MarketingSocial Media ManagementSocial Media AnalyticsContent Marketing
Note-TakingTask ManagementCalendar ApplicationsDocument EditingPDF ToolsFile ManagementKnowledge ManagementPersonal Dashboards
Learning Management SystemsOnline Course PlatformsEducational GamesFlashcardsLanguage LearningProgramming EducationMathematicsScience Simulations
Personal FinanceBudgetingExpense TrackingFinancial VisualizationPortfolio TrackingFinancial CalculatorsAccountingEconomic Data
Privacy ToolsPassword ManagersEncryptionNetwork SecurityVulnerability ScanningSecurity AuditingAuthenticationSecure Communication
Data VisualizationBusiness IntelligenceData ScienceData CleaningData PipelinesDatabasesDatabase ManagementSpreadsheets
Game EnginesGame Development2D Games3D GamesGame AssetsGame ModdingGame ToolsEmulators
Scientific ComputingPhysics SimulationsMathematicsChemistryBiologyAstronomyRoboticsElectronics
Docker ToolsKubernetesCI/CDCloud InfrastructureServer ManagementMonitoringLoggingDeployment
Messaging ApplicationsVideo ConferencingForumsCommunity PlatformsSocial NetworksEmail ClientsCollaboration ToolsReal-Time Communication
Health & Fitness ApplicationsHabit TrackingTravel PlanningRecipe ManagementHome AutomationPersonal OrganizationAccessibility ToolsWeather Applications
ArduinoRaspberry PiHome AutomationSmart DevicesRoboticsEmbedded SystemsSensor MonitoringHardware Dashboards
Alternatives to Paid SoftwareSelf-Hosted ApplicationsFree Productivity ToolsFree Design ToolsFree Business ToolsFree AI ToolsFree Developer ToolsPrivacy-Focused Alternatives
Blockchain InfrastructureDecentralized ApplicationsAR & VRBrowser ExtensionsDesktop ApplicationsOperating SystemsSearch EnginesNew Developer Technologies