Small utilities,
running worldwide
Focused tools built on Cloudflare Workers — fast, serverless, and free to try right in your browser. New ones ship regularly.
Build log
One new tool, every day
A running journal of what I'm building on Cloudflare Workers — what each tool does, and why I built it that way. Here are the latest few.
- Day 10AI
PromptGuard
AI prompt-injection firewall that scores prompts before they reach your LLM
WhySecure the AI itself — score prompts for injection before they ever reach the model.
Open tool - Day 9AI
DocToMD
Convert any file — PDF, Word, Excel, images — to clean Markdown instantly.
WhyOne AI primitive, many formats — turn any document or image into clean Markdown.
Open tool - Day 8AI
WebDigest AI
AI-powered research assistant that summarizes any webpage
WhyBrought AI to the edge — fetch, clean, and summarize any page with Workers AI.
Open tool
Why I build here
I'm in love with the edge
Cloudflare Workers let me turn an idea into a live, global tool in an afternoon — no servers, no setup, no waiting. My mission with WorkersCanDo is simple: ship one focused tool every day and show just how much you can do at the edge.
Idea to live in minutes
Write code, deploy, done — it's instantly global.
No servers to babysit
Nothing to provision, patch, or keep awake at night.
Fast for everyone
Runs in 300+ cities, close to whoever's using it.
Learning in public
Every tool is open source — built to teach, and to be reused.
Build the next one with us
Got an idea for an edge tool? Suggest it or open a pull request — good ideas ship as part of the hundred.