Top Open Source Projects using GitHub

A curated collection of the 423 best open source software using GitHub. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Kanri

Kanri is an offline desktop Kanban board for Windows, macOS, and Linux that stores boards in a single JSON file.

Alternative to:

Trello

Simplify your workflow with offline Kanban boards

Stars
2,018
Forks
167
Last commit
5 days ago

Azimutt

A database exploration tool for designing, browsing, documenting, and analyzing schemas that have grown too large for a conventional ERD.

Alternative to:

Lucidchart

Next-Gen ERD: Design, Explore, Document and Analyze your database.

Stars

Vrite

A collaborative content platform for technical teams writing product documentation, developer blogs, and knowledge bases, with an API for delivering to any frontend.

Alternative to:

Contentful

Collaborative content creation for technical teams

Stars

Relaticle

A self-hosted CRM built around an MCP server, so AI agents can read and act on customer data through documented tools.

Alternative to:

HubSpot

Self-hosted CRM with built-in AI chat and agent tools

Stars
1,608

Plakar

A backup engine storing encrypted, deduplicated snapshots you can browse, diff, and verify without restoring, across files, databases, and Kubernetes.

Alternative to:

Arq Backup

Encrypted, queryable backups for engineers who value time

Stars

Voiden

An offline, Git-native API workspace where requests, tests, and documentation live together in plain-text files you version like code.

Alternative to:

Postman

Build APIs like code with Git-native workspace

Stars
1,673

Mezon

A real-time communication platform for gaming, work, and community spaces, with native clients and a C server stack built for low latency.

Alternative to:

Slack

Create custom spaces to chat, game, and connect globally

Stars
1,695

Amical

A local-first dictation app that transcribes speech with Whisper on your own machine and formats the result for whichever app you are using.

Alternative to:

Aqua Voice

Type 10x faster with AI-powered voice dictation

Stars
1,523

XWiki

A Java wiki platform that doubles as an application runtime, letting teams build structured collaborative applications on top of their own documentation.

Alternative to:

Notion

Open-source knowledge management and collaboration platform

Stars
1,305

Tirreno

Self-hosted security framework that watches user activity inside your application to catch account takeover, fraud and abuse.

Alternative to:

Feedzai

Security framework that protects from within your product

Stars
1,507

Zola

Open-source chat front end for OpenAI, Claude, Gemini, Mistral and local Ollama models, built for developers who self-host.

Alternative to:

ChatGPT

AI chat companion with versatile model support

Stars
1,531

Jean

Native desktop app for running Claude, Codex, Cursor and other coding CLIs across multiple projects, git worktrees and chat sessions.

Alternative to:

Omnara

Parallel AI agent workspaces with Git and project context

Splitpro

Self-hosted expense sharing for friends and groups, built as a replacement for Splitwise without a paywall on core features.

Alternative to:

Splitwise

Effortlessly split expenses with friends and groups

Stars
1,426

Probo

Self-hostable GRC platform covering risk, controls, vendor risk, data privacy and audits, aimed at engineering and security teams.

Alternative to:

Drata

Managed compliance for SOC 2, ISO 27001, HIPAA, and more

Stars
1,346

Conar

AI-assisted desktop database client for PostgreSQL, MySQL, MSSQL and ClickHouse, with encrypted connection storage and help writing queries.

Alternative to:

DataGrip

AI-powered PostgreSQL management made simple

Stars
1,436

Trench

Self-hosted event tracking on Kafka and ClickHouse, compatible with the Segment API, for teams handling real-time analytics at volume.

Alternative to:

Mixpanel

Fast, scalable analytics infrastructure

Stars
1,662

Kodus

AI code review that runs inside your pull requests, follows rules you write in plain language and uses your own model keys.

Alternative to:

CodeRabbit

AI code review that learns your team's standards

Stars
1,359

UnInbox

Open source email built for teams, with shared spaces, per-conversation workflow statuses and unlimited addresses, for anyone drowning in shared inboxes.

Alternative to:

Front

Transform team email into efficient collaborative workflows

Stars
1,758

Chalk.ist

A browser tool that turns source code into polished images, for developers sharing snippets in posts, slides and documentation.

Alternative to:

Snappify

Transform your source code into stunning visuals

Stars
1,846

WunderGraph

Lifecycle API management platform for federated GraphQL, covering schema registry, composition checks, routing, analytics, metrics and tracing.

Alternative to:

Apollo GraphOS

Unify APIs, databases, and services effortlessly

Stars

Hexabot

Self-hosted platform for building agentic workflows in YAML and running them across conversational channels with tools, memory and RAG.

Alternative to:

Voiceflow

Self-hosted AI agents and workflows across any channel

Stars
1,214

Databuddy

Analytics and data management platform with real-time dashboards, funnels and custom event tracking, self-hostable with Docker Compose.

Alternative to:

Google Analytics

Privacy-first analytics without cookies or tracking

Stars

Hoodik

End-to-end encrypted cloud storage you host yourself, with browser-side encryption, encrypted notes, and share links the server can never read.

Alternative to:

Dropbox

Secure self-hosted cloud storage with end-to-end encryption

Stars
1,468

Beaver Notes

A local-first markdown notes app for desktop and mobile, with no account wall, no editor telemetry, and sync you choose yourself.

Alternative to:

Evernote

Local-first notes app with no cloud, no AI, no tracking

Stars
1,337

OpenSERP

A self-hosted search API and CLI returning structured results from Google, Bing, Yandex, Baidu, DuckDuckGo and Ecosia without any API keys.

Alternative to:

Bright Data

Self-hosted SERP API for Google, Bing, Yandex, and more

Stars

Zen

A single-binary self-hosted notes app that stores standard markdown in SQLite, organizes by tags, and searches with BM25 ranking.

Alternative to:

Notion

Clean, distraction-free note-taking with local storage

Stars
1,170

Pullfrog

Runs coding agents inside your own GitHub Actions to review pull requests, fix broken CI and triage issues on your keys.

Alternative to:

CodeRabbit

AI agent workflows built natively into GitHub

Stars
1,142

Browser Operator

A desktop AI browser that runs multi-agent research, comparison and automation locally, using whichever model provider you configure yourself.

Alternative to:

Dia

Open-source AI browser for intelligent web automation

Stars

Peekaping

Self-hosted uptime monitoring with an API-first Go server, status pages and more than twenty alert channels, aimed at DevOps teams.

Alternative to:

UptimeRobot

Self-hosted uptime monitoring you own and control

Stars
1,188

LogChimp

A self-hosted feedback board where customers post ideas and follow a public roadmap, running entirely under your own brand.

Alternative to:

Canny

Open-source feedback management for product teams

Stars
1,123

CourseLit

An open source learning management system for selling online courses and digital downloads from your own site, with Stripe payments included.

Alternative to:

Kajabi

Create, sell, and manage online courses with ease

Stars
1,263

ByteChef

A workflow automation platform where AI agents run as ordinary steps and 250 plus connectors double as agent tools and MCP tools.

Alternative to:

Zapier

Build AI agents and automate complex workflows seamlessly

Stars
1,000

Vvveb CMS

Websites, blogs, and ecommerce stores built in PHP with a drag and drop page builder, for teams on modest shared hosting.

Alternative to:

Shopify

Open source CMS with powerful drag-and-drop builder

Stars
1,181

Keyshade

Secret and configuration management that encrypts values with public key cryptography and pushes updates into running applications without a restart.

Alternative to:

AWS Secrets Manager

Secure secret management with public key encryption

Stars

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Top Open Source Projects using GitHub

A curated collection of the 423 best open source software using GitHub. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Kanri

Azimutt

Vrite

Relaticle

Plakar

Voiden

Mezon

Amical

XWiki

Tirreno

Zola

Jean

Splitpro

Probo

Conar

Trench

Kodus

UnInbox

Chalk.ist

WunderGraph

Hexabot

Databuddy

Hoodik

Beaver Notes

OpenSERP

Zen

Pullfrog

Browser Operator

Peekaping

LogChimp

CourseLit

ByteChef

Vvveb CMS

Keyshade

Browse categories of tools using GitHub:

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub

Best using GitHub