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Sealbook / Open source / Self-hosted apps (SaaS alternatives)

Top open-source self-hosted apps (saas alternatives) on GitHub

1,859 repositories with 1,000+ stars, ranked by stars. Leading: excalidraw, immich, Stirling-PDF.

RepositoryStarsLanguageLicenseActivity
401pixlcore/xyopsThe next generation of Cronicle: open-source job scheduling, visual workflows, server monitoring, alerting, and incident response.★ 6.3kJavaScriptBSD-3-ClauseActive
402goodrain/rainbondRainbond is an open-source container platform that requires no Kubernetes expertise. Its core capabilities are 100% open source. It abstrac★ 6.3kGoOtherActive
403MessageKit/MessageKitA community-driven replacement for JSQMessagesViewController★ 6.3kSwiftMITActive
404jpillora/cloud-torrent☁️ Cloud Torrent: a self-hosted remote torrent client★ 6.2kGoAGPL-3.0Active
405openblocks-dev/openblocks🔥 🔥 🔥 The Open Source Retool Alternative★ 6.2kTypeScriptAGPL-3.0Stale
406azukaar/Cosmos-Server☁️ The Most Secure and Easy Selfhosted Home Server. Take control of your data and privacy without sacrificing security and stability (Authe★ 6.2kGoOtherActive
407baserow/baserowBuild databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 ★ 6.2kPythonOtherActive
408JuanCrg90/Clean-Code-NotesMy notes of Clean Code book★ 6.1k——Stale
409foxcpp/maddy✉️ Composable all-in-one mail server.★ 6.1kGoGPL-3.0Active
410beancount/beancountBeancount: Double-Entry Accounting from Text Files.★ 6.1kPythonGPL-2.0Active
411arp242/goatcounterEasy web analytics. No tracking of personal data.★ 6.1kGoOtherActive
412lesspass/lesspass:key: stateless open source password manager★ 6.1kTypeScriptGPL-3.0Active
413toeverything/blocksuite🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.★ 6.1kTypeScriptMPL-2.0Active
414ledger/ledgerDouble-entry accounting system with a command-line reporting interface★ 6.1kC++OtherActive
415alpkeskin/mosintAn automated e-mail OSINT tool★ 6.1kGoMITStale
416go101/go101An up-to-date (unofficial) knowledge base for Go programming self learning★ 6.1kHTMLOtherActive
417zammad/zammadZammad is a web based open source helpdesk/customer support system.★ 6kRubyAGPL-3.0Active
418realm/realm-js Realm is a mobile database: an alternative to SQLite & key-value stores★ 6kTypeScriptApache-2.0Active
419Countly/countly-serverCountly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital a★ 5.9kJavaScriptOtherActive
420shazow/ssh-chatChat over SSH.★ 5.9kGoMITSlowing
421mjl-/moxmodern full-featured open source secure mail server for low-maintenance self-hosted email★ 5.9kGoMITActive
422dograh-hq/dograhOpen source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK across Speech to Speech or LLM/STT/TTS, with a vis★ 5.9kPythonBSD-2-ClauseActive
423prolificinteractive/material-calendarviewA Material design back port of Android's CalendarView★ 5.9kJavaMITStale
424scanopy/scanopyNetwork diagrams that update themselves★ 5.9kRustAGPL-3.0Active
425ayn2op/discordoA lightweight, secure, and feature-rich Discord terminal (TUI) client.★ 5.8kGoGPL-3.0Active
426201206030/novelnovel 是一套基于时下最新 Java 技术栈 Spring Boot 3 + Vue 3 开发的前后端分离学习型小说项目，配备保姆级教程手把手教你从零开始开发上线一套生产级别的 Java 系统，由小说门户系统、作家后台管理系统、平台后台管理系统等多个子系统构成。包括小说推荐、★ 5.8kJavaApache-2.0Active
427denoland/celldself-hosted, distributed Durable Objects★ 5.8kRustApache-2.0Active
428causefx/OrganizrHTPC/Homelab Services Organizer - Written in PHP★ 5.8kPHPGPL-3.0Slowing
429sparrowcode/PermissionsKitUniversal API for request permission and get its statuses.★ 5.8kSwiftMITActive
430SuiteCRM/SuiteCRMSuiteCRM - Open source CRM for the world★ 5.8kPHPAGPL-3.0Active
431go-vikunja/vikunjaThe task manager you actually own.★ 5.8kGoAGPL-3.0Active
432mayswind/ezbookkeepingezBookkeeping is an open source, powerful, self-hosted personal finance app that is easy to use.★ 5.8kGoMITActive
433ponzu-cms/ponzuHeadless CMS with automatic JSON API. Featuring auto-HTTPS from Let's Encrypt, HTTP/2 Server Push, and flexible server framework written in ★ 5.8kGoBSD-3-ClauseSlowing
434partykit/partykitPartyKit simplifies developing multiplayer applications★ 5.7kTypeScriptMITActive
435YILS-LIN/short-video-factory一键生成产品营销与泛内容短视频，AI批量自动剪辑，高颜值跨平台桌面端工具 One click generation of product marketing and general content short videos, AI batch automatic cliping,★ 5.7kTypeScriptAGPL-3.0Active
436xmartlabs/XLFormXLForm is the most flexible and powerful iOS library to create dynamic table-view forms. Fully compatible with Swift & Obj-C. ★ 5.7kObjective-CMITStale
437trazyn/weweChat💬 Unofficial WeChat client built with React, MobX and Electron.★ 5.7kJavaScriptMITArchived
438redecentralize/alternative-internetA collection of interesting new networks and tech aiming at decentralisation (in some form).★ 5.7k——Active
439buger/jsonparserTHE fastest alternative JSON parser for Go that does not require schema★ 5.7kGoMITActive
440draftdev/startup-marketing-checklistA checklist of tactics for marketing your startup.★ 5.7k——Stale
441nunomaduro/phpinsights🔰 Instant PHP quality checks from your console★ 5.6kPHPMITActive
442umputun/remark42comment engine★ 5.6kGoMITActive
443kizitonwose/CalendarA highly customizable calendar view and compose library for Android and Kotlin Multiplatform.★ 5.6kKotlinMITActive
444moxiecode/pluploadPlupload is JavaScript API for building file uploaders. It supports multiple file selection, file filtering, chunked upload, client side ima★ 5.6kJavaScriptAGPL-3.0Stale
445kuaifan/dootaskDooTask是一款开源在线项目任务管理工具，提供各类文档协作工具、在线思维导图、在线流程图、项目管理、任务分发、即时IM，文件管理等工具；同时消息功能使用非对称加密技术让你的沟通更安全。★ 5.6kPHPAGPL-3.0Active
446disposable-email-domains/disposable-email-domainsa list of disposable email domains★ 5.6kPythonOtherActive
447ONLYOFFICE/DesktopEditorsOpen-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms★ 5.6k—AGPL-3.0Active
448papra-hq/papraThe minimalistic document archiving platform.★ 5.6kTypeScriptAGPL-3.0Active
449psviderski/uncloudA lightweight tool for deploying and managing containerised applications across a network of Docker hosts. Bridging the gap between Docker a★ 5.6kGoApache-2.0Active
4503proxy/3proxy3proxy - tiny free proxy server★ 5.5kCOtherActive