Developer Tools
26 tools·privacy-first·runs locally
All tools
Asset Generator
Ship pixel-perfect Web, iOS, Android, and PWA icons in a single export.
Coordinate Studio
Build routes, drag markers, and export clean GeoJSON in one place.
Legal Document Generator
Draft privacy policies, terms, and cookie notices that satisfy regulators.
Fake Data Generator
Spin up believable datasets, IDs, and personas for staging environments.
JSON Formatter
Format, diff, and explore JSON trees without touching your terminal.
Log Parser
Paste noisy logs, spotlight the signal, and export clean diagnostics.
SQL Query Builder
Model tables, constraints, and ready-to-run SQL without leaving the browser.
Password Generator
Deliver enterprise-strong passwords with granular rules and instant strength feedback.
QR Generator
Create branded QR codes with advanced content presets, colors, and logo overlays.
Regex Tester
Prototype regular expressions with live matches and curated presets.
Timestamp Converter
Jump between epochs, locales, and readable dates instantly.
PDF to PNG
Convert PDFs to retina-ready PNGs with DPI control that never leaves your device.
UUID Studio
Generate UUIDs in bulk with formatting controls, batch export, and quick history actions.
Focus Canvas
A calm focus timer with an embedded notebook for jotting thoughts mid-session.
Text Converter
Encode and decode Base64, URL, HTML, Hex, and Binary in a single click.
HTTP Status Codes
The definitive reference for every HTTP status code, with examples, best practices, and instant search.
Markdown Editor
Write and preview Markdown in real time with a toolbar, keyboard shortcuts, and one-click export.
CSV Viewer & Editor
View, edit, sort, filter, and export CSV data — all inside the browser with zero uploads.
Cron Expression Builder
Visual cron builder with human-readable preview, next 10 execution dates, and common presets.
Color Converter
Convert between HEX, RGB, and HSL with live preview and harmony palette generation.
Text Diff
Compare two texts side by side and see every addition, removal, and change highlighted.
JWT Debugger
Decode and inspect JSON Web Tokens — headers, claims, and expiration at a glance.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, SHA-512, and HMAC hashes from text or files.
Image Compressor
Compress and convert images between JPEG, PNG, and WebP — all client-side.
Placeholder Image
Generate custom placeholder images with any dimension, color, and text for mockups.
Rubber Duck Debugger
Explain your bug to the duck. The duck listens. The duck judges. The duck quacks.