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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.

Favicon of NHost

NHost

Serverless backend platform for modern app development

  • Stars

    9,279

  • Last commit

    11 hours ago

  • License

    MIT
Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Hatchet

Hatchet

Distributed task queue for background jobs and workflows

  • Stars

    7,791

  • Last commit

    10 hours ago

  • License

    MIT
Durable orchestration platform for managing AI agents, scheduling background tasks, and running mission-critical workflows.

Open Source Alternative to:

Favicon of Make
Make
Favicon of Highlight

Highlight

Real-time observability for modern web applications

  • Stars

    9,371

  • Last commit

    6 days ago

  • License

    Apache-2.0
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Coroot

Coroot

Full-stack observability without code changes

  • Stars

    7,890

  • Last commit

    8 days ago

  • License

    Apache-2.0
Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.

Open Source Alternative to:

Favicon of Splunk
Splunk
Favicon of OneUptime

OneUptime

Comprehensive monitoring and incident management platform

  • Stars

    7,516

  • Last commit

    13 hours ago

  • License

    Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Favicon of Opsgenie
Opsgenie
Favicon of Woodpecker CI

Woodpecker CI

Simple yet powerful CI/CD engine with great extensibility

  • Stars

    7,749

  • Last commit

    14 hours ago

  • License

    Apache-2.0
Open-source CI/CD platform using Docker containers for pipeline execution. Create multiple workflows, extend with plugins, and enjoy free lifetime access.

Open Source Alternative to:

Favicon of GitHub Actions
GitHub Actions
Favicon of OpenCloud

OpenCloud

Self-hosted file sharing built for digital sovereignty

  • Stars

    5,854

  • Last commit

    24 hours ago

  • License

    Apache-2.0
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Rivet

Rivet

Build stateful backends with in-memory actors

  • Stars

    6,085

  • Last commit

    19 hours ago

  • License

    Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Favicon of Cloudflare Workers
Cloudflare Workers
Favicon of CloudQuery

CloudQuery

Sync and transform data from any source to any destination

  • Stars

    6,495

  • Last commit

    1 day ago

  • License

    MPL-2.0
CloudQuery is an open-source ELT platform that enables easy data integration from hundreds of cloud and security tools to any destination.

Open Source Alternative to:

Favicon of Snowflake
Snowflake
Favicon of Cosmos Server

Cosmos Server

Self-hosted cloud platform with automated security

  • Stars

    6,128

  • Last commit

    1 day ago

  • License

    Unknown
Complete self-hosting solution with automated maintenance, Smart-Shield protection, anti-DDoS, SSO authentication, and VPN access for secure private cloud management.

Open Source Alternative to:

Favicon of Umbrel
Umbrel
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,423

  • Last commit

    16 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Permify

Permify

Build scalable authorization in minutes, not months

  • Stars

    5,939

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Open-source authorization service for implementing fine-grained access controls. Centralized, scalable solution supporting RBAC, ABAC and ReBAC with Google Zanzibar-inspired architecture.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of Flexprice

Flexprice

Open source metering and billing infrastructure for any pricing model

  • Stars

    4,348

  • Last commit

    10 hours ago

  • License

    AGPL-3.0
A flexible billing platform that handles usage-based metering, credit management, and subscription billing, giving developers full control over pricing models.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of ezBookkeeping

ezBookkeeping

Lightweight self-hosted bookkeeping with AI receipt scanning

  • Stars

    5,466

  • Last commit

    21 hours ago

  • License

    MIT
A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash and Firefly III.

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of Inngest

Inngest

Effortless event-driven workflows for modern applications

  • Stars

    5,763

  • Last commit

    17 hours ago

  • License

    SSPL-1.0
Simplify backend processes with event-driven functions, seamless integrations, and powerful debugging tools for developers.

Open Source Alternative to:

Favicon of Kafka
Kafka
Favicon of Digger

Digger

Terraform automation with pull request workflows

  • Stars

    5,030

  • Last commit

    15 days ago

  • License

    MIT
Open-source CI/CD orchestrator for Terraform with pull request automation, drift detection, and enterprise-grade security. Self-hostable with private runners.

Open Source Alternative to:

Favicon of env0
env0
Favicon of Vikunja

Vikunja

Organize, collaborate, and conquer your tasks

  • Stars

    5,172

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
A powerful, open-source task management platform for teams and individuals, offering customizable workflows and seamless integration.

Open Source Alternative to:

Favicon of Linear
Linear
Favicon of Zen

Zen

System-wide ad-blocking and privacy protection, no extensions needed

  • Stars

    4,202

  • Last commit

    21 hours ago

  • License

    MIT
Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.

Open Source Alternative to:

Favicon of AdGuard
AdGuard
Favicon of Erxes

Erxes

Open-source growth platform for customer-centric teams

  • Stars

    4,074

  • Last commit

    9 hours ago

  • License

    AGPL-3.0
All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

Favicon of Attio
Attio
Favicon of Fider

Fider

Open-source platform for collecting and prioritizing feedback

  • Stars

    4,482

  • Last commit

    17 days ago

  • License

    AGPL-3.0
A self-hosted community feedback tool that helps organizations gather, discuss, and prioritize user suggestions and feature requests.

Open Source Alternative to:

Favicon of Featurebase
Featurebase
Favicon of Cerbos

Cerbos

Secure, policy-based access control for modern applications

  • Stars

    4,554

  • Last commit

    14 hours ago

  • License

    Apache-2.0
A scalable authorization layer that provides fine-grained access control through externalized policies, enabling secure and flexible permissions management.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of Flipt

Flipt

Git-native feature management for developers

  • Stars

    4,880

  • Last commit

    10 hours ago

  • License

    GPL-3.0
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of Wakapi

Wakapi

Track coding time effortlessly, gain insights instantly

  • Stars

    4,411

  • Last commit

    5 days ago

  • License

    MIT
Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Open Source Alternative to:

Favicon of Clockify
Clockify
Favicon of Uptrace

Uptrace

Open source observability platform for modern applications

  • Stars

    4,270

  • Last commit

    13 days ago

  • License

    AGPL-3.0
Uptrace is an OpenTelemetry-based platform that integrates traces, metrics, and logs to help monitor and optimize complex distributed systems.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Opengrep

Opengrep

Open-source code security engine for developers

  • Stars

    2,993

  • Last commit

    16 hours ago

  • License

    LGPL-2.1
Opengrep is a community-driven fork of SemgrepCE, providing accessible static code analysis and security scanning for developers.
Favicon of OpenLIT

OpenLIT

AI
Monitor, debug, and scale LLM applications with ease

  • Stars

    2,717

  • Last commit

    15 hours ago

  • License

    Apache-2.0
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.

Open Source Alternative to:

Favicon of LangSmith
LangSmith
Favicon of Storj

Storj

Secure, decentralized cloud storage for your data

  • Stars

    3,275

  • Last commit

    21 hours ago

  • License

    AGPL-3.0
Storj offers a distributed cloud storage platform with enhanced security, global performance, and significant cost savings compared to traditional providers.

Open Source Alternative to:

Favicon of Amazon S3
Amazon S3
Favicon of Donetick

Donetick

Smart task management for individuals and families

  • Stars

    2,504

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Organize tasks and chores with intelligent scheduling, fair assignment, and collaboration features. Perfect for families and teams with smart notifications.

Open Source Alternative to:

Favicon of Todoist
Todoist
Favicon of Krakend

Krakend

Blazing-fast API gateway with linear scalability

  • Stars

    2,668

  • Last commit

    6 days ago

  • License

    Apache-2.0
High-performance, stateless API gateway built for microservices. Handle 80K+ requests/second with transparent pricing and enterprise-grade reliability.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Envoy AI Gateway

Envoy AI Gateway

AI
Route GenAI traffic with confidence using open source

  • Stars

    1,956

  • Last commit

    2 days ago

  • License

    Apache-2.0
Open source gateway built on Envoy for routing application traffic to GenAI services. Supports 16+ LLM providers including OpenAI, Anthropic, AWS Bedrock.

Open Source Alternative to:

Favicon of Msty Nexus
Msty Nexus
Favicon of Notifuse

Notifuse

Self-hosted email platform with visual editor & analytics

  • Stars

    2,076

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Checkmk

Checkmk

AI
Complete IT infrastructure monitoring made simple

  • Stars

    2,349

  • Last commit

    9 hours ago

  • License

    GPL-2.0
Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Cozystack

Cozystack

Turn bare metal into intelligent cloud infrastructure

  • Stars

    2,203

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Transform bare metal servers into a complete cloud platform with REST API for Kubernetes clusters, databases, VMs, and load balancers. Build your own cloud.

Open Source Alternative to:

Favicon of Amazon Web Services
Amazon Web Services
Favicon of OpenMeter

OpenMeter

Real-time usage metering and billing for AI companies

  • Stars

    2,229

  • Last commit

    22 hours ago

  • License

    Apache-2.0
Open source billing platform that turns events into revenue with real-time metering, usage limits, and flexible pricing. Integrates with Stripe, CRMs, and payment providers.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of dstack

dstack

AI
GPU orchestration across clouds, Kubernetes, and on-prem

  • Stars

    2,220

  • Last commit

    9 hours ago

  • License

    MPL-2.0
Unified control plane for AI compute that provisions and schedules GPU workloads across any cloud, Kubernetes cluster, or bare-metal server.

Open Source Alternative to:

Favicon of Kubernetes
Kubernetes
Favicon of Maple

Maple

OpenTelemetry observability with traces, logs, and metrics

  • Stars

    1,723

  • Last commit

    10 hours ago

  • License

    Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Timeplus

Timeplus

Real-time stream processing made simple and affordable

  • Stars

    2,247

  • Last commit

    14 days ago

  • License

    Apache-2.0
Timeplus is a lightweight, powerful, and cost-efficient stream processing platform for real-time analytics, deployed as a single binary.
Favicon of Sequin

Sequin

Open-source message stream built on Postgres

  • Stars

    2,191

  • Last commit

    6 months ago

  • License

    MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.

Open Source Alternative to:

Favicon of Amazon SQS
Amazon SQS
Favicon of Beam

Beam

AI
Serverless GPU compute with sub-second cold starts

  • Stars

    1,754

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Run GPU inference, task queues, and sandboxes on serverless infrastructure with sub-second cold starts, autoscaling, and support for your own AWS, GCP, or bare metal.

Open Source Alternative to:

Favicon of Daytona
Daytona
Favicon of Semaphore

Semaphore

Open source CI/CD platform that's faster and costs less

  • Stars

    1,584

  • Last commit

    22 hours ago

  • License

    Unknown
Continuous integration and delivery platform offering faster builds, lower costs, and maintenance-free operations. Cut build times dramatically while reducing CI/CD expenses by 50%.

Open Source Alternative to:

Favicon of GitHub Actions
GitHub Actions
Favicon of Plakar

Plakar

Encrypted, queryable backups for engineers who value time

  • Stars

    2,032

  • Last commit

    17 hours ago

  • License

    ISC
Backup solution with CLI, API and UI interfaces. Clean defaults, easy deployment. Encrypted, queryable backups with deduplication and compression.

Open Source Alternative to:

Favicon of Veeam
Veeam
Favicon of Dyrector

Dyrector

Simplify container deployment across environments

  • Stars

    1,847

  • Last commit

    6 days ago

  • License

    Apache-2.0
Effortless container orchestration platform for seamless deployment, management, and monitoring of applications across multiple environments.

Open Source Alternative to:

Favicon of Docker Desktop
Docker Desktop
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