Ranked by how they treat first pull requests
The most beginner-friendly Go open source projects
Projects that merge pull requests from outside contributors and answer them quickly: the two things a newcomer cannot see before sending one.
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1. rancher/rke2 Go
98% of outside PRs merged Maintainers usually reply within 1 day
7 open beginner issues 2,344 stars
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2. genshinsim/gcsim Go
monte carlo combat simulation for genshin impact
96% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 438 stars
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3. writer/cerebro Go
Cerebro turns security, identity, cloud, SaaS, workflow, policy, and compliance data into evidence-backed context for people, coding agents, and automation.
97% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 15 stars
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4. istio/test-infra Go
100% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 84 stars
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5. vshulcz/deja-vu Go
One memory shared by Claude Code, Codex, Cursor, Copilot CLI, OpenClaw and 29 more coding agents, built from the session history already on disk. A fix found in one agent comes back in any of them,...
96% of outside PRs merged Maintainers usually reply within 1 day
9 open beginner issues 935 stars
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6. openclaw/crabbox Go
Crabbox: warm a box, sync the diff, run the suite.
96% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 1,408 stars
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7. DefangLabs/pulumi-defang Go
Defang Pulumi providers - Take your app from Docker Compose to a secure and scalable cloud deployment with Pulumi.
94% of outside PRs merged Maintainers usually reply within 1 day
8 open beginner issues 16 stars
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8. seebom-labs/BOMHort Go
About standalone, Kubernetes-native Software Bill of Materials (SBOM) visualization and governance platform
92% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 49 stars
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Go SDK for Hiero
93% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 128 stars
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10. devantler-tech/ksail Go
All-in-one Kubernetes SDK: create, manage, and operate clusters across distributions (Kind, K3d, Talos, VCluster) with built-in GitOps, secrets, AI assistant, and MCP server. Only requires Docker o...
94% of outside PRs merged Maintainers usually reply within 1 day
12 open beginner issues 165 stars
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11. Edgenesis/shifu Go
Kubernetes-native IoT gateway
100% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 1,436 stars
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12. tailscale/aperture-cli Go
An agentic coding launcher for Aperture
93% of outside PRs merged Maintainers usually reply within 1 day
3 open beginner issues 74 stars
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13. prime-radiant-inc/evener Go
A coding agent: give it a prompt and it reads, writes, runs commands, and searches code in a loop until the work is done, using native tool-calling across OpenAI, Anthropic, and Google models.
89% of outside PRs merged Maintainers usually reply within 1 day
12 open beginner issues 161 stars
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14. auth0/go-auth0 Go
Go SDK for the Auth0 Management API.
92% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 198 stars
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15. DefangLabs/defang Go
Defang Deploy CLI. Develop Once, Deploy Anywhere. Take your app from Docker Compose to a secure and scalable deployment on your favorite cloud in minutes.
90% of outside PRs merged Maintainers usually reply within 1 day
4 open beginner issues 168 stars
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16. zalando/skipper Go
An HTTP router and reverse proxy for service composition, including use cases like Kubernetes Ingress
89% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 3,330 stars
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17. bytebase/bytebase Go
Database governance built for humans and agents — controlling changes and access across every major database.
90% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 14,511 stars
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Deploy Supabase on Kubernetes
90% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 817 stars
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19. carapace-sh/carapace-bin Go
A multi-shell completion binary.
87% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 1,965 stars
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20. safedep/pmg Go
PMG protects developers, AI agents from malicious open source packages using proxy, sandbox and SafeDep's threat intelligence feed.
85% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 513 stars
How this ranking works
Score = merge rate × reply speed. The merge rate is the share of pull requests from outside contributors (anyone who is not an owner, member or collaborator of the project, bots excluded) merged in the last 30 days, smoothed as (merged + 1) ÷ (sent + 2) so a few lucky merges do not outrank a long record. The reply speed is 1 ÷ (1 + the median number of days before a pull request gets its first reply from someone other than its author, or is merged). Bot comments do not count as replies.
Listed: projects with at least 10 outside pull requests in that window, at least one open beginner issue, at least 10 stars, a push in the last 180 days, not archived, and measured in the last 30 days.