Open Source Projects using Golang
A curated collection of the 154 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.
Managed identity and access management for any app
Stars
2,007Last commit
2 days agoLicense
Apache-2.0
Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.
Open Source Alternative to:
All-in-one observability with unlimited data ingestion
Stars
1,701Last commit
20 hours agoLicense
AGPL-3.0
Unified platform for logs, metrics, traces and profiles with native compatibility for popular tools like OpenTelemetry, Prometheus, and Loki. No data silos, no usage limits.
Open Source Alternative to:
Cloud-native framework for infrastructure from code
Stars
2,014Last commit
7 months agoLicense
Apache-2.0
Nitric automates cloud infrastructure provisioning from your application code for AWS, GCP and Azure
Open Source Alternative to:
Unify APIs, databases, and services effortlessly
Stars
1,255Last commit
20 hours agoLicense
Apache-2.0
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.
Open Source Alternative to:
Self-hosted SERP API for Google, Bing, Yandex, and more
Stars
1,304Last commit
1 month agoLicense
MIT
Query Google, Bing, Yandex, Baidu, DuckDuckGo, and Ecosia through one REST API. Self-host free under MIT, or use the managed cloud option.
Open Source Alternative to:
Clean, distraction-free note-taking with local storage
Stars
1,163Last commit
2 days agoLicense
AGPL-3.0
Minimal note-taking app storing Markdown notes in local SQLite database. Features instant search, flexible tagging, keyboard shortcuts, and offline access.
Open Source Alternative to:
Self-hosted uptime monitoring you own and control
Stars
1,180Last commit
3 months agoLicense
MIT
Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.
Open Source Alternative to:
Your secure French personal cloud for complete data control
Stars
1,271Last commit
24 hours agoLicense
AGPL-3.0
Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.
Open Source Alternative to:
Open-source email API with enterprise deliverability
Stars
875Last commit
1 day agoLicense
AGPL-3.0
Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.
Open Source Alternative to:
One self-hosted binary replaces Vercel, Sentry, and analytics tools
Stars
683Last commit
12 hours agoLicense
Apache-2.0
Self-hosted platform for small dev teams combining deployments, error tracking, analytics, session replay, uptime monitoring, and managed databases in one dashboard.
Open Source Alternative to:
Revolutionizing data processing with Compute Over Data
Stars
870Last commit
3 days agoLicense
Apache-2.0
Bacalhau is an open-source platform for fast, cost-effective, and secure distributed computing, seamlessly integrating with Docker and WebAssembly workflows.
Monitor, manage, and communicate service status effortlessly
Stars
975Last commit
2 years agoLicense
MIT
A powerful open-source status page system for real-time incident tracking, maintenance updates, and transparent communication with users.
Open Source Alternative to:
Take control of your finances, paycheck by paycheck
Stars
679Last commit
15 hours agoLicense
FSL-1.1-MIT
Manage your money confidently with monetr, putting aside what you need and spending what you want
Open Source Alternative to:
Persistent cloud VMs that hibernate and wake in seconds
Stars
491Last commit
14 hours agoLicense
Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.
Open Source Alternative to:
Open source financial infrastructure for modern businesses
Stars
518Last commit
7 days agoLicense
MIT
Build custom financial flows and integrate with any provider using Formance's agnostic platform
Open Source Alternative to:
Fast, secure, and privacy-focused web browsing
Stars
383Last commit
1 day agoLicense
MPL-2.0
Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.
Open Source Alternative to:
Build lasting communities with modern forum technology
Stars
332Last commit
3 days agoLicense
MPL-2.0
Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.
Open Source Alternative to:
Open-source changelog & roadmap platform for teams
Stars
298Last commit
6 months agoLicense
Apache-2.0
Self-hostable changelog and roadmap platform with community voting, automated newsletters, and kanban boards. Deploy with Docker in minutes.
Open Source Alternative to:
GDPR-compliant bot protection without user friction
Stars
187Last commit
14 hours agoLicense
Unknown
Privacy-first CAPTCHA service that blocks bots while keeping forms accessible. No puzzles, no tracking, no cookies - just invisible cryptographic protection.
Open Source Alternative to:
Secure, scalable server access management for DevOps
Stars
169Last commit
23 days agoLicense
BUSL-1.1
Centralized platform for managing SSH access, enhancing security, and streamlining server administration for DevOps teams.
Self-hosted project management with boards and test tracking
Stars
105Last commit
1 day agoLicense
AGPL-3.0
Self-hosted, open-source project management tool with boards, milestones, portals, time tracking, and test management on your own infrastructure.
Open Source Alternative to:
Privacy-friendly web analytics for data-driven decisions
Stars
130Last commit
6 months agoLicense
AGPL-3.0
Prisme offers customizable, GDPR-compliant web analytics with real-time insights, unlimited data retention, and bot filtering.
Open Source Alternative to:
Privacy-first analytics you own completely
Stars
83Last commit
12 hours agoLicense
MIT
Self-hosted or managed web analytics with zero external dependencies. Cookie-free tracking, full data sovereignty, and single binary deployment for organizations that own their data.
Open Source Alternative to:
AWS-compatible cloud APIs on infrastructure you control
Stars
86Last commit
10 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:
Self-hosted uptime monitoring that runs on your hardware, not their servers
Stars
74Last commit
4 days agoLicense
MIT
Deploy your own uptime and performance monitoring with HTTP/ICMP checks, multi-region probes, and custom status pages. MIT licensed, runs on minimal hardware.
Open Source Alternative to:
Streamline investor relations and fundraising management
Stars
61Last commit
6 months agoLicense
AGPL-3.0
Open source platform for managing investor updates, KPIs, fundraising pipeline and data rooms. Keep stakeholders informed and organized.
Open Source Alternative to:
AI-powered root cause analysis for on-call alerts, self-hosted and air-gapped
Stars
35Last commit
2 days agoLicense
Apache-2.0
Receive alerts from Grafana, Datadog, and Prometheus with AI-generated root cause analysis. Self-hosted on Kubernetes, fully air-gapped capable, Apache 2.0 licensed.
Open Source Alternative to:
Invisible bot protection that respects user privacy
Stars
32Last commit
24 hours agoLicense
MPL-2.0
Privacy-compliant CAPTCHA alternative using proof-of-work technology. Protects websites from bots and spam without user interaction or data tracking.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent
Openlane
InfluxDB