Open Source Projects using Golang
A curated collection of the 177 best open source software using Golang. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Turn any website into clean, AI-ready data via API
Stars
Stars growing over the last 30 days197,941Last commit
7 hours agoLicense
AGPL-3.0
API for AI agents to search, scrape, crawl, and interact with the live web, returning clean Markdown, structured JSON, or screenshots from any page.
Open Source Alternative to:
Multi-channel notification infrastructure for apps
Stars
40,249Last commit
10 hours agoLicense
Unknown
Open-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.
Open Source Alternative to:
Passkeys, SSO, and MFA without vendor lock-in
Stars
9,060Last commit
7 hours agoLicense
AGPL-3.0
Open source authentication platform supporting passkeys, 2FA, SSO, and social login. Self-host or use Hanko Cloud, with full control over your data and no lock-in.
Open Source Alternative to:
Managed compliance for SOC 2, ISO 27001, HIPAA, and more
Stars
Stars growing over the last 30 days1,493Last commit
11 hours agoLicense
MIT
Compliance management platform where dedicated compliance officers handle your entire program, from risk assessments to audit coordination, with automated evidence collection.
Open Source Alternative to:
AWS-compatible cloud APIs on infrastructure you control
Stars
Stars growing quickly over the last 30 days408Last commit
8 hours agoLicense
AGPL-3.0
Spinifex recreates EC2, S3, EBS, VPC, IAM, and more on your own hardware, so AWS-built software runs unchanged without touching a hyperscaler.
Open Source Alternative to:
Continuous compliance automation for SOC 2, ISO 27001 & more
Stars
Stars growing over the last 30 days336Last commit
8 hours agoLicense
Apache-2.0
Automates evidence collection, control tracking, and audit reporting across SOC 2, ISO 27001, NIST 800-53, GDPR, and 12+ other frameworks in one platform.
Open Source Alternative to:
An AI assistant that acts, not just answers
Stars
393,747Last commit
7 hours agoLicense
MIT
A personal AI assistant that connects to your existing chat apps and handles real tasks like email, calendar, and flight check-ins on your behalf.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
185,701Last commit
9 hours agoLicense
MIT
Runs open-source language models locally with a simple setup, plus optional cloud access for larger models when local hardware isn't enough.
Open Source Alternative to:
Org chart, budgets, and governance for AI agent teams
Stars
Stars growing quickly over the last 30 days110,289Last commit
7 hours agoLicense
MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.
Open Source Alternative to:
Self-hosted uptime monitoring with a clean dashboard
Stars
93,190Last commit
13 hours agoLicense
MIT
Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly.
Open Source Alternative to:
Mac cleaner, app manager, and system monitor in one
Stars
Stars growing over the last 30 days73,641Last commit
9 hours agoLicense
GPL-3.0
Native macOS app that cleans caches, uninstalls apps with leftovers, maps disk usage, and shows live system metrics. One-time purchase, lifetime updates.
Open Source Alternative to:
Project management for teams mixing humans and AI agents
Stars
Stars growing over the last 30 days54,637Last commit
11 hours agoLicense
Unknown
Open-source platform that manages coding agents as team members, with task queues, skill libraries, runtime monitoring, and a unified activity feed.
Open Source Alternative to:
Unified observability for metrics, logs, traces, and more
Stars
77,638Last commit
8 hours agoLicense
AGPL-3.0
Grafana unifies metrics, logs, traces, profiles, and business data into one OpenTelemetry-native platform with AI-assisted root cause analysis and adaptive cost controls.
Open Source Alternative to:
Real-time monitoring for systems and applications
Stars
81,255Last commit
8 hours agoLicense
GPL-3.0
Powerful, efficient, and user-friendly monitoring solution for servers, containers, and applications with instant insights and alerts.
Open Source Alternative to:
Self-hosted timeline for quick notes, logs, and snippets
Stars
64,235Last commit
14 hours agoLicense
MIT
Memos is a self-hosted, open-source note-taking app built around a private timeline. Write in Markdown, skip the folder setup, and keep your data on your own server.
Open Source Alternative to:
Open source metrics collection, storage, and alerting
Stars
66,906Last commit
8 hours agoLicense
Apache-2.0
Pull-based monitoring system with a multi-dimensional data model, PromQL query language, built-in alerting, and a time series database built for cloud native environments.
Open Source Alternative to:
Self-hosted AI runtime for text, voice, vision, and agents
Stars
50,139Last commit
8 hours agoLicense
MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.
Open Source Alternative to:
Self-hosted Git service for seamless collaboration
Stars
58,826Last commit
7 hours agoLicense
MIT
A lightweight, fast, and customizable Git service that simplifies code hosting and collaboration for teams of all sizes.
Open Source Alternative to:
Lightning-fast analytics for massive datasets
Stars
50,719Last commit
7 hours agoLicense
Apache-2.0
High-performance columnar OLAP database system for real-time analytics on big data, with SQL support and linear scalability.
Open Source Alternative to:
Privacy-first knowledge management with block-level linking
Stars
47,039Last commit
9 hours agoLicense
AGPL-3.0
Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
Open Source Alternative to:
High-performance vector database for GenAI applications
Stars
46,563Last commit
8 hours agoLicense
Apache-2.0
Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss
Open Source Alternative to:
Effortless deployment and management for any VPS
Stars
38,197Last commit
11 hours agoLicense
Unknown
Streamline your deployment process with Dokploy. Manage applications and databases on any VPS using Docker and Traefik for improved performance and security.
Open Source Alternative to:
Fast, AI-native web browser built for automation and scraping
Stars
Stars growing quickly over the last 30 days40,880Last commit
11 hours agoLicense
AGPL-3.0
Purpose-built headless browser that delivers 10x faster performance and 10x lower memory usage compared to Chrome headless for web automation and AI workflows.
Open Source Alternative to:
Self-hosted Git service that's lightweight and easy to install
Stars
47,914Last commit
2 days agoLicense
MIT
Lightweight, cross-platform Git service for self-hosting. Easy installation, minimal requirements, runs on Raspberry Pi. 100% open source and free.
Open Source Alternative to:
Open-source coding agent for your IDE and terminal
Stars
36,400Last commit
15 hours agoLicense
Apache-2.0
Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.
Open Source Alternative to:
Unlock Product Insights with Open-Source Analytics
Stars
40,600Last commit
7 hours agoLicense
MIT
All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.
Open Source Alternative to:
Manage Linux servers with ease through a modern web interface
Stars
37,343Last commit
11 hours agoLicense
GPL-3.0
Comprehensive web-based tool for Linux server administration with integrated website, database, container, and LLM management capabilities.
Open Source Alternative to:
Secure collaboration platform for mission-critical work
Stars
39,510Last commit
7 hours agoLicense
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Open Source Alternative to:
Privacy-first metasearch across 270+ sources
Stars
Stars growing over the last 30 days39,138Last commit
10 hours agoLicense
AGPL-3.0
Self-hostable metasearch engine that aggregates results from 270+ sources without tracking or profiling users, with optional JavaScript and Tor support.
Open Source Alternative to:
Scale-out SQL database for real-time analytics
Stars
40,701Last commit
7 hours agoLicense
Apache-2.0
Distributed SQL database combining OLTP and OLAP capabilities, offering horizontal scalability, high availability, and real-time analytics.
Open Source Alternative to:
Local AWS emulator with no account, gates, or paid tiers
Stars
Stars growing over the last 30 days27,815Last commit
8 hours agoLicense
MIT
Run AWS services locally in development and CI without an account, quotas, or feature restrictions. MIT licensed, no telemetry.
Open Source Alternative to:
Zero-config VPN with WireGuard for secure networking
Stars
Stars growing over the last 30 days38,534Last commit
7 hours agoLicense
BSD-3-Clause
Deploy a modern WireGuard-based VPN with zero configuration. Connect devices securely across clouds, VPCs, and on-premises networks without firewall rules.
Open Source Alternative to:
AI coding agent for VS Code, JetBrains, CLI, and Cloud
Stars
27,834Last commit
7 hours agoLicense
MIT
Open source AI coding agent with 500+ models, bring-your-own-key support, and specialized modes for writing, debugging, and planning code across IDEs and CLI.
Open Source Alternative to:
Your personal cloud OS for simple, elegant home servers
Stars
37,521Last commit
1 month agoLicense
Apache-2.0
CasaOS is an open-source personal cloud system that makes it easy to set up and manage your own home server
Open Source Alternative to:
Advanced vulnerability detection and management platform
Stars
32,543Last commit
8 hours agoLicense
MIT
Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.
Open Source Alternative to:
Open-source observability platform for cloud-native apps
Stars
32,509Last commit
8 hours agoLicense
MIT
Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.
Open Source Alternative to:
End-to-end open source software delivery platform
Stars
38,798Last commit
10 hours agoLicense
Apache-2.0
Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.
Open Source Alternative to:
Secure storage and access control for secrets and sensitive data
Stars
36,462Last commit
8 hours agoLicense
Unknown
Manages tokens, passwords, certificates, and encryption keys through a UI, CLI, or HTTP API, with dynamic credentials and encryption-as-a-service built in.
Open Source Alternative to:
Open blueprints for governed, always-on AI agents
Stars
22,919Last commit
7 hours agoLicense
Apache-2.0
Collection of open blueprints combining models, agent harnesses, and runtime controls to deploy specialized autonomous AI agents with policy-based guardrails.
Open Source Alternative to:
Open source infrastructure as code tool
Stars
30,703Last commit
14 hours agoLicense
MPL-2.0
A community-driven, truly open-source fork of Terraform for managing cloud infrastructure through code.
Open Source Alternative to:
Open-source backend in a single file
Stars
61,611Last commit
7 days agoLicense
MIT
A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.
Open Source Alternative to:
Blazing-fast in-memory data store for modern applications
Stars
31,844Last commit
8 hours agoLicense
Unknown
Dragonfly is a high-performance, Redis-compatible in-memory data store that delivers up to 25x more throughput and 80% lower costs than legacy solutions.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Bright Data
Stellar Hosted
Sent