Welcoming Repositories Index Clojure Ecosystem

Top Welcoming Open-Source Clojure Repositories

Top welcoming Clojure repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.

Updated daily • Mon, 31 Aug 2026 UTC
Tracked Repos
503
>100 stars verified
Avg Merge Rate
34%
90-day external PRs
Open GFIs
13
Beginner friendly issues
Welcoming Tier
5
S & A Tier maintainers

Ranked Clojure Repositories

Showing top 50 of 503 ranked repositories

RankRepositoryTierScoreMerge RateGood First Issues
#1
🤖 Extreme chatops bot for Slack, Discord, Mattermost, IRC 🔧 New contributors welcome 🏗
BSolid80.3100.0% -
#2
The Common Metadata Repository (CMR) is a high-performance, high-quality, continuously evolving metadata system that catalogs Earth Science data and associated service metadata records. These metadata records are registered, modified, discovered, and accessed through programmatic interfaces leveraging standard protocols and APIs.
SElite73.493.3% -
#3
An immutable SQL database for application development, time-travel reporting and data compliance. Developed by @juxt
SElite72.476.6% -
#4
A clojuresque key-value/document store protocol with core.async.
BSolid69.496.3% -
#5
Versioned, fast, distributed Datalog engine for everyone.
AWelcoming69.089.9% -
#6
Penpot: The open-source design platform for Product teams that need scalable collaboration.
AWelcoming64.164.5%2
#7
Clojure & ClojureScript Language Server (LSP) implementation
BSolid61.957.3% -
#8
Turn Clojure data structures into SQL
BSolid60.4100.0% -
#9
Editor Code Assistant (ECA) - AI pair programming capabilities agnostic of editor
BSolid59.582.8% -
#10
The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data :bar_chart:
AWelcoming56.39.3%8
#11
A simple, fast and versatile Datalog database
BSolid55.5100.0%1
#12
Pure cljs version of 4clojure, meant to run forever!
BSolid54.4100.0% -
#13
A privacy-first, open-source platform for knowledge management and collaboration. Download link: http://github.com/logseq/logseq/releases. roadmap: https://logseq.io/p/NX4mc_ggEV
BSolid52.529.6% -
#14BSolid52.016.7% -
#15
Rewrite Clojure code and edn
BSolid50.0100.0% -
#16
📚 A central documentation hub for the Clojure community
BSolid50.0100.0% -
#17
Native, fast starting Clojure interpreter for scripting
BSolid48.512.5% -
#18
A clojure tool to navigate through your data.
BSolid47.346.2% -
#19
A minimalistic ClojureScript interface to React.js
BSolid46.350.0% -
#20
Free monospaced font with programming ligatures
BSolid45.160.0% -
#21
A tool for formatting Clojure code
BSolid44.650.0% -
#22
A framework for distributed systems verification, with fault injection
BSolid43.6100.0% -
#23
High-performance data-driven data specification library for Clojure/Script.
BSolid40.850.0%2
#24
A fast data-driven routing library for Clojure/Script
CModerate38.1100.0% -
#25
Asynchronous streaming communication for Clojure - web server, web client, and raw TCP/UDP
CModerate30.10.0% -
#26
A simple tool for coordinating several AI agents.
DRisky24.48.7% -
#27
Configurable Clojure/Script interpreter suitable for scripting and Clojure DSLs
DRisky21.60.0% -
#28
Immutable database and Datalog query engine for Clojure, ClojureScript and JS
DRisky8.00.0% -
#29
A fast Clojure Tensor & Deep Learning library
DRisky8.00.0% -
#30
Overarch provides a data model for the holistic description of a software system, opening multiple use cases on the model data. Supports C4 and UML diagram generation with PlantUML.
DRisky8.00.0% -
#31
Seesaw turns the Horror of Swing into a friendly, well-documented, Clojure library
DRisky0.00.0% -
#32
A debugger for Clojure and ClojureScript with some unique features.
DRisky0.00.0% -
#33
Programming in YAML
DRisky0.00.0% -
#34
Java 8 Date-Time API for Clojure
DRisky0.00.0% -
#35
Maze generation code, inspired by Mazes for Programmers.
DRisky0.00.0% -
#36
A Clojure library for Apache Spark: fast, fully-features, and developer friendly
DRisky0.00.0% -
#37
A library designed to bridge the gap between the triad of CLJ/CLJS, web-sockets and core.async.
DRisky0.00.0% -
#38
A Clojure wrapper to HikariCP JDBC connection pool
DRisky0.00.0% -
#39
A Rosetta stone for JVM byte representations
DRisky0.00.0% -
#40
A mix of www.shadertoy.com and Overtone
DRisky0.00.0% -
#41
A C++14 cheat-sheet on lvalues, rvalues, xvalues, and more
DRisky0.00.0% -
#42
A stream processing framework to build stateless applications on Kafka
DRisky0.00.0% -
#43
Example projects and sample code featured in Clojure Programming (1st ed.) from O'Reilly
DRisky0.00.0% -
#44
⚡️ Clojurescript application template using Boot
DRisky0.00.0% -
#45
A minimalist's unit testing framework ("classic" version)
DRisky0.00.0% -
#46
Refreshes and reruns clojure.tests in your project.
DRisky0.00.0% -
#47
EQL is a declarative way to make hierarchical (and possibly nested) selections of information about data requirements. This repository contains the base specs and definitions for EQL parsing, AST, etc.
DRisky0.00.0% -
#48
A Functional API around JavaFX / OpenJFX.
DRisky0.00.0% -
#49
Tooling to build LLM applications: prompt templating and composition, agents, LLM memory, and other instruments for builders of AI applications.
DRisky0.00.0% -
#50
Swagger Spec for Clojure Web Apps
DRisky0.00.0% -

How to Get Your Clojure PR Merged

1
Check C-Rank™ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.

Top Clojure Frameworks & Stacks

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Frequently Asked Questions: Clojure Open Source

What is the most welcoming Clojure open-source repository?

The highest-ranked Clojure repository on GetMerged is currently yetibot/yetibot, with a C-Rank score of 80.3/100 and a 100.0% PR merge rate.

How can I find good first issues in Clojure?

You can browse verified beginner-friendly issues in Clojure by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/clojure.

What makes a Clojure repository ‘Super Welcoming’ on GetMerged?

A ‘Super Welcoming’ (S-Tier) Clojure repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.

Best Clojure Open Source Repos | GetMerged