4 repositories · 18.7k stars

Best open-source Cloudflare Development Tools projects

We track 4 open-source Cloudflare Development Tools projects with 18.7k combined GitHub stars. Most are written in C++ and TypeScript. The most popular is workerd (8.9k★), and 2 projects have shipped code in the last 90 days.

Runtime 1
Database 1
HTML 1
Web Tools 1

Runtime1

workerd
Hot
cloudflare/workerd
The open-source JavaScript and Wasm runtime that powers Cloudflare Workers — self-host Workers apps, test locally, or run a programmable proxy.
cloudflare-workersjavascriptwasm
C++8.9k776Oct 2026

Database1

Outerbase Studio
outerbase/studio
A lightweight browser-based SQL GUI for Cloudflare D1, Turso/LibSQL, SQLite, MySQL and PostgreSQL.
databasesqlitecloudflare-d1
TypeScript6k270Mar 2026

HTML1

LOL HTML
cloudflare/lol-html
Low-latency streaming HTML rewriter and parser with a CSS-selector API — the engine behind HTMLRewriter in Cloudflare Workers.
rusthtmlparser
Rust2.1k115Jul 2026

Web Tools1

URL Shortener Worker
xyTom/Url-Shorten-Worker
A lightweight, serverless URL shortener built with Cloudflare Workers, offering a simple and efficient way to create and manage shortened URLs without any server infrastructure.
url-shortenercloudflare-workersserverless
JavaScript1.8k1.3kMar 2026

Compare Development Tools projects

Comparison of Cloudflare Development Tools projects
#	Project	Stars	Language	Status	License
1	workerdcloudflare/workerd	8.9k	C++	Active	Apache License 2.0
2	Outerbase Studioouterbase/studio	6k	TypeScript	Maintained	GNU Affero General Public License v3.0
3	LOL HTMLcloudflare/lol-html	2.1k	Rust	Active	BSD 3-Clause "New" or "Revised" License
4	URL Shortener WorkerxyTom/Url-Shorten-Worker	1.8k	JavaScript	Maintained	MIT License

Runtime1

workerd

Database1

Outerbase Studio

HTML1

LOL HTML

Web Tools1

URL Shortener Worker

Compare Development Tools projects