Open source / Developer tools
KitDev Space.
The little tools you keep needing.
A small working sample
Give it some JSON.
Format or compact it here. Your text stays in this browser.
A collection of focused utilities for the everyday work between bigger tasks. Format some JSON, inspect a color, convert an image, and get back to what you were building.
Organized around the task
Tools live in six labs: data, crypto, color, network, image, and dev. Each lab brings related utilities together, from JSON-to-TypeScript conversion to contrast checks and image resizing.
Useful inputs, useful outputs
Inspect DNS records and HTTP headers, compare text, convert between data formats, or strip image metadata. Tools run in the browser or on the server without persisting the submitted data.
Room to keep growing
KitDev Space is built with Nuxt, TypeScript, and Bun, and the source is open. Use the tools on the live site, or read how they work in the repository. New labs and utilities are added over time.
WHAT IS INSIDE
77 tools across 6 labs
Read from the live site when this page was built.
Data Lab 20
JSON Formatter, JSON → TypeScript, JSON ↔ YAML, JSON ↔ TOML, JSON ↔ XML and 15 more
Crypto Lab 9
Hash Generator, ID & Secret Generator, Password Benchmarker, JWT Debugger, HMAC Generator and 4 more
Color Lab 6
Color Converter, Contrast Checker, Palette Generator, CSS Gradient Studio, Tailwind Shade Generator and 1 more
Network Lab 11
DNS Lookup, Email Health Inspector, HTTP Inspector, URL Inspector, OpenGraph Previewer and 6 more
Image Lab 10
Image Studio, EXIF & Metadata Inspector, SVG to PNG / WebP, Image to Base64, Placeholder Image Generator and 5 more
Dev Lab 21
Encoder & Escaper, Semver Calculator, Cron Visualizer, Tar Explorer, TS / JSX Transpiler and 16 more