8 tools live · no accounts · runs in your browser

Developer tools that
respect your time.

Professional utilities for code, text, and APIs. Fast, keyboard-driven, and completely client-side.

⌘Kprimary action on every tool

⌘Dclear / reset

?view shortcuts

Available now

Drop a screenshot or paste code — get a beautiful mockup with gradient backgrounds, frames, and one-click export.

Compare two text blocks and see exactly what changed. Split or unified view.

JSON Visualizer

Paste JSON and explore it as an interactive node graph. Zoom, pan, inspect any node.

Regex Playground

Test regex patterns live with match highlighting, capture groups, and a recipe library.

Test REST APIs with all HTTP methods, custom headers, request body, and a full response inspector.

Markdown Editor

Live preview markdown with Mermaid diagrams, math (KaTeX), GFM tables, and scroll sync.

Preview SVGs and convert to typed React components with props. Drop an SVG file or paste code.

Cron Visualizer

Paste a cron expression and instantly see a human-readable schedule, next run times, and a calendar heatmap.

Coming soon