With over 57,000 GitHub stars and deployment across thousands of organizations worldwide, Gitea is the most popular self-hosted Git service, delivering a complete software development platform in a single Go binary that runs on as little as 512MB of RAM. The platform provides full repository management with pull requests featuring inline code review, branch protection rules, merge strategies including squash, rebase, and merge commit, and automated status checks through Gitea Actions. The built-in CI/CD system uses the same YAML workflow syntax as GitHub Actions and can directly reuse over 20,000 existing Actions plugins, allowing teams to migrate from GitHub with minimal pipeline rewrites using the open-source act_runner executor. The integrated package registry supports over 20 formats including npm, PyPI, Maven, NuGet, Cargo, Helm, Composer, Conda, RubyGems, Pub, and an OCI-compatible Container registry for Docker images with no additional configuration required. Project management features include issue tracking with labels, milestones, dependencies, and time tracking, alongside kanban project boards for visual workflow management. Gitea supports LFS for large file storage, built-in wiki pages per repository, webhook integrations with Slack, Discord, Telegram, Microsoft Teams, and custom HTTP endpoints, and OAuth2 authentication with LDAP, SAML, and PAM backend support. Repository mirroring enables bidirectional synchronization with GitHub, GitLab, and Bitbucket, while the comprehensive REST and GraphQL APIs power external integrations and the official tea CLI tool. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Governed by the non-profit Codeberg e.V. with over 150 contributors and quarterly major releases reaching v16.0 in July 2026, Forgejo delivers a complete code collaboration platform in a single Go binary that runs comfortably on 512 MB of RAM — providing full Git hosting with SSH and HTTPS, pull requests with inline code review, issue tracking with labels and milestones, kanban project boards, wikis, and an integrated package registry supporting Docker, npm, PyPI, Maven, NuGet, and Cargo. Forgejo Actions provides GitHub Actions-compatible CI/CD with reusable workflows, OpenID Connect for secure third-party access, ephemeral runners for autoscaling, and dynamic matrix support for complex build pipelines. The platform implements ActivityPub-based forge federation allowing issues, pull requests, and stars to work across independent instances — enabling a decentralized development ecosystem similar to how Mastodon federates social networks. Organizations and team permissions provide fine-grained access control, while LDAP, OAuth2, and OpenID authentication integrate with existing identity infrastructure. Code search indexes repositories for fast discovery, LFS handles large files efficiently, and mirror synchronization imports repositories from GitHub, GitLab, and other forges. Deploy via a single static binary, Docker container, or official Helm charts with SQLite for small instances or PostgreSQL and MySQL for production workloads. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPLv3+ licensed.

Used by over 100,000 organizations and ranked first in the Gartner Magic Quadrant for DevOps Platforms, GitLab is the open-core DevSecOps platform that delivers the complete software development lifecycle — from planning and source code management through CI/CD, security scanning, and monitoring — in a single self-managed application. The built-in CI/CD engine executes pipelines defined in YAML with parallel jobs, directed acyclic graph scheduling, multi-project pipelines, and auto-scaling runners on Docker, Kubernetes, or bare metal. Merge requests provide inline code review with approval rules, code owners, merge trains for serialized merging, and five merge strategies including fast-forward and semi-linear history. The integrated container registry stores Docker images alongside code, while the package registry supports npm, Maven, NuGet, PyPI, Conan, Go, and generic packages. Issue boards with epics, milestones, and labels enable agile planning, while the built-in wiki and GitLab Pages provide documentation hosting and static site publishing. Security scanning in the Community Edition includes basic SAST, secret detection, and container scanning running as pipeline jobs. The Omnibus installer bundles Rails, Puma, Gitaly, Workhorse, Nginx, PostgreSQL, Redis, Sidekiq, and Prometheus into a single package installable in minutes, while Docker and Helm chart options support containerized and Kubernetes deployments. GitLab Duo AI assists with code suggestions, merge request summaries, and vulnerability resolution. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Unlike pull-request forges, Gerrit reviews every Git change as a series of patchsets, and nothing merges until the required approvals are in. Developers upload with a plain git push to a refs/for ref, adding push options for topics, hashtags, work-in-progress, or private changes. Each change gets a page listing reviewers, CCs, an attention set that flags who must act next, and submit requirements driven by labels such as Code-Review and Verified, with a quick approve button for the last missing vote. Side-by-side diffs with syntax highlighting take inline comments written in Markdown, saved as drafts and published together. A Checks tab shows CI runs reported by plugins, and integrations reach Jenkins, GitHub Actions, Zuul, and webhooks. Access rights attach to groups and branch patterns, including regular expressions, and inherit from parent projects and All-Projects. Sign-in works with LDAP, OAuth, OpenID, or HTTP single sign-on, and SAML through a plugin. A query language filters changes by status, owner, reviewer, label, file path, and reviewer count. Projects pick a submit strategy: merge if necessary, fast forward only, rebase if necessary, rebase always, merge always, or cherry pick. A REST API, SSH commands, and a plugin system extend the server, and an optional Review Agent chat panel can summarize a change once an AI provider plugin is installed. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

With over 15,100 GitHub stars and seven years of battle-tested production use, OneDev replaces entire DevOps toolchains — GitLab, Jenkins, Jira, Artifactory — with a single Java application that runs comfortably on a 1-core 2GB server for medium-sized projects. The platform unifies Git hosting with ANTLR-powered language-aware code search and symbol navigation, pull request workflows with configurable branch protection rules and required reviewers, and customizable issue tracking with scripted state transitions that automatically advance issues when code is committed, builds pass, or deployments complete. The GUI-based CI/CD editor creates pipelines without writing YAML, supporting typed parameters, matrix builds, job templates, cache management, and artifact publishing in a single visual interface. Jobs execute via Docker containers, bare metal shell, Kubernetes pods, or distributed agent pools, with web terminal access for live debugging and the ability to pause running jobs for inspection. Built-in package registries handle Docker images, npm packages, Maven artifacts, NuGet libraries, PyPI wheels, and RubyGems without external infrastructure. AI users can be assigned to issues and pull requests to autonomously implement features, review code, fix CI/CD failures, and resolve merge conflicts. The automated Kanban board supports rule-based card movement, time tracking, timesheets, and service desk ticket creation via email. Cluster deployment enables project replication across servers for high availability and horizontal distribution for scalability. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With 37,400+ GitHub stars and active daily development by the Harness engineering team, Gitness is the open-source developer platform that ships Git hosting, container-native CI/CD pipelines, a Docker-compatible artifact registry, and cloud developer environments in a single Go binary consuming approximately 100 MB of RAM — compared to GitLab's 4+ GB minimum footprint. Born as the next generation of Drone CI, Gitness inherits Drone's battle-tested pipeline engine while adding complete source code management with pull requests featuring threaded code review comments, suggested changes, required reviewer approvals, and merge strategies including squash and rebase. Branch protection rules enforce mandatory pull requests, minimum peer reviews, passing status checks, and force-push blocking. Pipelines use Drone-compatible YAML syntax with stages, steps, and service containers, triggered automatically on code changes with results displayed directly in pull request checks. The built-in container registry eliminates the need for separate Harbor or Docker Registry deployments, supporting Docker image push and pull plus Helm chart storage. Gitspaces provide on-demand remote development environments configured via industry-standard devcontainer.json files. Encrypted secrets management with Gitleaks-powered secret scanning blocks commits containing hardcoded credentials. One-click migration imports existing GitHub Organizations and GitLab Groups, automatically converting GitHub Actions and GitLab CI pipelines to Gitness YAML. The REST API with OpenAPI specification enables programmatic management of all resources. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Point the gh CLI at your private Githome server and it works identically to github.com, because every REST v3 and GraphQL v4 endpoint returns byte-for-byte compatible JSON shapes, headers, Link pagination, and ETag caching. A single compiled Go binary serves the REST API under /api/v3, GraphQL under /api/graphql, git smart-HTTP transport, and a server-rendered web UI implementing the GitHub Primer design system with full functionality when JavaScript is disabled. The web interface provides repository browsing with Markdown rendering and syntax highlighting, issue tracking, pull requests with unified diffs and inline code review threads, full-text search, user profiles, and a notifications inbox. Authentication supports personal access tokens with prefix-based identification, OAuth device and web flows, and scoped permissions on every response header with only token hashes stored. The pull request system implements the complete lifecycle including async mergeable state computation, squash, merge, and rebase strategies, commit statuses, check runs, and statusCheckRollup fields. Webhooks deliver events with X-Hub-Signature-256 verification, SSRF protection, and at-least-once retry semantics. Storage supports SQLite for single-node deployments or PostgreSQL for production configurations. Performance optimizations include batch loaders replacing N+1 queries, keyset pagination, FTS-backed search, and GraphQL dataloaders. Docker deployment pulls the official multi-arch container image from GitHub Container Registry. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

walgit is a self-hosted Git server that keeps every repository inside one S3 or GCS bucket, so the machine serving your code is disposable while your history stays durable. Point the binary at a bucket, start it, and pushing to a new repository name creates that repository on the spot, with no admin console or provisioning step in between. Developers clone, fetch, and push over smart HTTP with Git LFS support for large files, and big clones are delivered as static bundle files so multi-gigabyte repositories never bottleneck the server process. The built-in web interface lets you browse file trees, read files, review commit history, and inspect diffs directly in the browser. Per-repository policy files control protected branches, fast-forward-only references, and bypass lists, so release branches stay guarded without a separate compliance tool. A JSON API and the dependency-free repos.js SDK let scripts, internal dashboards, and automation agents read repository data programmatically, with long operations streaming progress as server-sent events. Webhooks deliver exactly-once reference events to CI systems, chat tools, and deployment pipelines whenever branches or tags move. Background checkpoints and compaction keep storage tidy on their own, while token or OpenID Connect sign-in decides who may read and who may push. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Before a change lands in the main branch, Review Board gives your team a self-hosted code review server where reviewers read the diff, open issues on specific lines, and sign off with a Ship It. Post a review request from the web or with RBTools, either before you commit or after, and every update becomes a new revision that stays in the history. Interdiffs show exactly what changed between revisions, and moved-code detection keeps rearranged blocks from drowning out real edits. Comments can open issues that reviewers later mark fixed or dropped. Images and Markdown files can be reviewed alongside code, with split, onion-skin, color, and side-by-side diffs for pictures. A dashboard with customizable columns separates incoming from outgoing requests by review group. Connect Git, Mercurial, Subversion, or Perforce repositories, including ones hosted on GitHub or GitLab, and review them all on one server. Slack and Discord notifications, Jenkins builds, and Review Bot linters report back inside the review. Private repositories and hidden or invite-only review groups restrict who sees what, with sign-in through Active Directory, LDAP, or SAML 2.0. A REST API, WebHooks, and Python extensions cover custom workflows. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Originated as Alibaba Group's official internal AI code review assistant serving tens of thousands of developers and identifying millions of code defects over two years before open-sourcing in May 2026 — now at 21,000+ GitHub stars — Open Code Review is the production-hardened platform that proves enterprise-grade code review can be fully open-source under Apache 2.0. The hybrid architecture separates deterministic engineering pipelines (file selection, diff parsing, rule matching for NPE, thread-safety, XSS, and SQL injection across 10+ languages) from LLM-powered agent reasoning with tool-use capabilities including FileRead, CodeSearch, and cross-file context inspection, consuming approximately one-ninth the tokens of general-purpose coding agents while delivering line-level precise comments with severity and confidence scoring. The bundled web dashboard (port 4173) provides review management, findings triage, result browsing, and direct GitHub posting without external dependencies, while the session viewer (port 5483) renders full LLM request/response traces for debugging and auditing. Integration spans GitHub Actions, GitLab CI, GitFlic CI, and Gerrit with delegation mode enabling Claude Code, Cursor, and other AI agents to leverage OCR's engineering logic alongside their own LLM reasoning. Supports OpenAI, Anthropic, Google Gemini, DeepSeek via built-in providers plus Ollama and vLLM for air-gapped deployments. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

When a commit lands, a timer fires, or a pull request opens, Concourse runs the matching jobs in fresh containers and draws the entire CI/CD pipeline as a live graph you can read at a glance. Pipelines are plain YAML files that tie resources such as git repositories, registries, and buckets to jobs made of get, put, and task steps, so the same file behaves the same on every installation. Resources are checked continuously for new versions, webhooks can request an immediate check, and a version can be pinned when something needs to stay put. The dashboard lists every pipeline by team with status colors, a filter box, favorites, and a high-density view, while build pages stream colored logs and let you rerun a build with the exact same inputs. The fly command line sets pipelines, runs one-off tasks against local files from your laptop, and opens a shell inside the container of a failed step. A set_pipeline step lets pipelines configure other pipelines, and instance vars create a family of related pipelines, such as one per pull request. Teams keep projects separate and can be tied to a GitHub organization, credentials arrive at run time from Vault, CredHub, AWS, or Kubernetes, and policy rules can block disallowed images. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

With 7,300+ GitHub stars and active releases through version 3.17, Woodpecker CI is the community-driven fork of Drone CI that kept the entire platform open source under Apache 2.0 — delivering a lightweight, container-native CI/CD engine that runs on minimal resources while providing enterprise-grade pipeline automation. Every pipeline step executes in an isolated Docker container, ensuring reproducible builds with zero host contamination and clean teardown after each run. Define workflows in simple YAML configuration files with step dependencies, conditional execution via when filters, service containers for databases and caches, and matrix builds that test across multiple language versions, platforms, or database engines simultaneously. Deep forge integration connects to GitHub, GitLab, Gitea, Forgejo, and Bitbucket via OAuth and webhooks, triggering pipelines on push, pull request, tag, deployment, and cron events. The plugin ecosystem inherits compatibility with the Drone plugin library — over 100 plugins for Docker builds, S3 uploads, SSH deployment, Slack and Telegram notifications, Helm deployments, and more. The server-agent architecture separates the web UI, API, and scheduler from pipeline execution, enabling horizontal scaling by adding agents across multiple machines or architectures including ARM. Secrets management supports global, organization, and repository-level scopes with approval workflows for forked repository pipelines. The admin web UI provides user management, agent monitoring, and queue control. Docker Compose deployment provisions the complete stack in under five minutes. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Private npm packages without shipping code to the public registry or paying for npm Enterprise: Verdaccio is the standard lightweight, zero-config private registry and caching proxy. It runs as a single Node.js process with its own tiny embedded database; no external database is required to start. Point npm, yarn, or pnpm at it and everything behaves as expected: install, publish, unpublish, dist-tags, and deprecation all work against the standard npm endpoints. The uplink system is where it earns its keep: packages not found locally are fetched from configured upstreams (npmjs.org, yarn, JFrog, Nexus, or another Verdaccio), cached as tarballs, and served locally thereafter - cutting CI latency and surviving registry outages. Multiple uplinks chain for failover, and per-package glob patterns in config.yaml route scopes to specific upstreams while controlling access, publish, and unpublish rights per group. You can even override a public package by publishing a patched version under the same name locally. A plugin architecture swaps in auth backends (htpasswd default, LDAP and others available), storage drivers (S3, Google Cloud Storage), middleware routes, and metadata filters. With official Docker images and a Kubernetes Helm chart, it slots into any pipeline in minutes.

Artifact Keeper serves as a self-hosted universal software artifact repository that consolidates container images, application libraries, and infrastructure bundles under a unified management control plane. Software development teams can publish and resolve dependencies using their existing build tools, including Docker, Helm, npm, PyPI, Maven, Cargo, NuGet, and Terraform without installing proprietary client plugins. Remote repositories act as transparent pull-through caching proxies for public upstreams like Docker Hub and PyPI, accelerating internal CI/CD build speeds while insulating production pipelines from external registry outages. Virtual repositories combine multiple local, remote, and third-party endpoints into single URLs, resolving packages across prioritized internal teams and public registries automatically. Automated security scanners evaluate incoming packages for Common Vulnerabilities and Exposures using Trivy and Grype engines, assigning letter grades and enforcing quarantine policies to block vulnerable binaries before production release. Administrators can sign package metadata with cryptographic GPG keys, configure peer mesh replication across geographic regions, and manage team permissions using OpenID Connect, SAML, and granular access tokens. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Every developer has a graveyard of browser tabs, chat messages, and stray text files holding links and code worth keeping; Codever replaces the graveyard with a bookmarks, notes, and snippets manager designed for developer workflows. Save a page in two clicks from Chrome or Firefox, drop selected text in as a snippet or note, or use the bookmarklet in any other browser, with title, description, and tags prefilled for you. From IntelliJ IDEA and Visual Studio Code you can push code straight into your library and pull it back without switching to the browser. Bookmarks carry descriptions and tags, and Pinned and Read Later lists sit beside your history so rediscovery takes seconds. Notes are written in Markdown and render with math, tables, and inline code, while snippets keep reusable code one search away with its context attached. Full text search spans bookmarks, notes, and snippets at once, with Brave, Google, Stack Overflow, and Bing one click away when the library comes up empty. Entries can be public, copied into your own collection, or gathered into curated sets for a team or topic. Accounts sign in through Keycloak with GitHub, Google, GitLab, or Stack Overflow, so a self-hosted instance fits the identity setup your team already uses. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.