Utility

Generate QR codes instantly for any URL or text with browser-based preview and PNG download.

Pack loose sprites or folders into atlas sheets with Unity, Phaser, Cocos, CSS, and JSON export presets.

Unpack sprite atlas sheets into individual PNG sprites with config parsing, auto-detect, and grid slicing.

Preview Spine JSON, atlas, and PNG exports locally with playback, skin, speed, and debug controls.

Preview Rive `.riv` files locally with animation playback, state-machine testing, state timeline review, event recording, and handoff-ready layout controls.

Generate harmonious color palettes and CSS variables from a base color.

Generate strong random passwords locally with configurable length, uppercase, lowercase, numbers, and symbols.

Count words, characters, sentences, paragraphs, lines, reading time, and readability locally as you type.

Generate and sign mock HS256 JSON Web Tokens locally with editable header, payload, and secret fields.

Generate MD5, SHA-256, and SHA-512 hashes from any text locally.

Generate UUID v4 values in bulk with format options.

Convert Unix timestamps and date strings into readable formats.

Convert HEX, RGB, and HSL colors with a live visual preview.

Decode JWT headers and payload claims locally without uploads.

Turn 5-field cron expressions into plain English schedules.