Ranked by how they treat first pull requests
The most beginner-friendly Rust 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. tamatebako/tebako Rust
tebako — the packaging and loading ecosystem: single-executable apps from any runtime, platform, and payload. Docs: docs/spec/
100% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 445 stars
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2. api7/aisix Rust
Open-source AI gateway for LLMs & AI agents, built in Rust. One OpenAI-compatible API for OpenAI, Anthropic, Gemini, Bedrock & more — routing, guardrails, caching, rate limits, observability.
99% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 169 stars
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3. ByteVeda/flexiq Rust
A Rust-powered task queue with native SDKs. One engine — no broker required, just SQLite, Postgres, or Redis.
100% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 20 stars
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4. lablup/mlxcel Rust
High-performance LLM, VLM, embedding, reranking, and audio inference for Apple Silicon and NVIDIA CUDA systems.
97% of outside PRs merged Maintainers usually reply within 1 day
26 open beginner issues 471 stars
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5. speakeasy-api/kit Rust
Kit is a coding agent runtime. Claude Code but faster, cheaper and more to the point 🎯
93% of outside PRs merged Maintainers usually reply within 1 day
5 open beginner issues 42 stars
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6. maplibre/martin Rust
Blazing fast and lightweight PostGIS, MBtiles and PMtiles tile server, tile generation, and mbtiles tooling.
97% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 3,931 stars
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7. rust-lang/goals Rust
Rust Project Goals tracker
95% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 173 stars
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8. DefGuard/client Rust
Sole VPN client implementing Multi-Factor Authentication on WireGuard® VPN connection
93% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 371 stars
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9. eclipse-ankaios/ankaios Rust
Eclipse Ankaios provides workload and container orchestration for embedded devices like automotive HPCs.
94% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 125 stars
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10. shep-pm/shep Rust
A process manager written in Rust: one daemon keeps a flock of long-running processes alive on macOS and Linux, with logs, watch and cron restarts, and webhook alerts
94% of outside PRs merged Maintainers usually reply within 1 day
120 open beginner issues 11 stars
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11. run-llama/liteparse Rust
A fast, helpful, and open-source document parser
89% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 12,333 stars
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12. rocky-data/rocky Rust
A SQL transformation engine that type-checks your whole pipeline and catches breaking changes before they run — branches, replay, column-level lineage, compile-time contracts, per-model cost. Adapt...
91% of outside PRs merged Maintainers usually reply within 1 day
4 open beginner issues 298 stars
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13. AtomaAI/atoma-infer Rust
Fast serverless LLM inference, in Rust.
97% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 135 stars
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14. FeRx-NLME/ferx-core Rust
Open-source nonlinear mixed-effects (NLME) modeling engine for population PK/PD and pharmacometrics, with FOCEI, SAEM, analytical PK, and ODE models.
97% of outside PRs merged Maintainers usually reply within 1 day
4 open beginner issues 12 stars
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15. tokio-rs/topcoat Rust
A batteries-included framework for building web apps
86% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 5,386 stars
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16. maplibre/maplibre-tile-spec Rust
Next generation map vector tiles format
93% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 556 stars
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17. gitbutlerapp/gitbutler Rust
The GitButler version control client, backed by Git, powered by Tauri/Rust/Svelte
86% of outside PRs merged Maintainers usually reply within 1 day
3 open beginner issues 21,741 stars
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18. worldcoin/world-chain Rust
World Chain monorepo
90% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 115 stars
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19. tuist/once Rust
Run once. Reuse everywhere.
94% of outside PRs merged Maintainers usually reply within 1 day
1 open beginner issue 51 stars
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20. microsoft/litebox Rust
A security-focused library OS supporting kernel- and user-mode execution
88% of outside PRs merged Maintainers usually reply within 1 day
2 open beginner issues 2,692 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.