About DevToolsKit

Most small developer utilities live on pages buried in ads, behind a sign-up wall, or — worse — they quietly POST whatever you paste to a server you know nothing about. DevToolsKit is the opposite of that: 20 tools, each a single static page, each running entirely as JavaScript in your own tab.

How it works

Every page is prerendered at build time and served as static files from Cloudflare's edge network. When you open a tool, one small interactive component hydrates — nothing else. There is no backend, no database and no request log, because there is no server-side code to run one.

What that means for you

• You can paste a production JWT or a config file without it leaving your machine.
• Tools keep working with your network disconnected once the page has loaded.
• There is nothing to sign up for and no usage limit to hit.

Missing a tool?

The collection grows based on what people actually reach for. If something you use weekly isn't here yet, it probably should be.