Timestamp Converter

Convert between Unix epoch and human-readable timestamps.

Base64 Encoder / Decoder

Encode plain text to Base64 or decode Base64 back to text.

JSON Formatter & Validator

Format, minify, and validate JSON documents.

CRON Expression Generator

Build CRON expressions from frequency dropdowns — minute, hour, day, week, or month.

Hash Generator

Generate MD5, SHA-1, and SHA-256 hashes from any input text.

Smart Scratchpad

Distraction-free notepad that auto-saves every keystroke. Instantly strips formatting from pasted text.

Image Compressor

Compress and convert images to JPEG, PNG, or WebP entirely in your browser — powered by ImageMagick WebAssembly.

Local LLM Chat

Chat with a local language model that runs entirely in your browser — powered by Transformers.js WebAssembly. No data sent to any server.

AI Tokenizer & Cost Calculator

Visualize how AI models tokenize your text with colour-coded token boundaries, and calculate the real-time API cost across GPT-4o, Claude, and Gemini.

Bookmarklet Compiler

Minify and compile raw JavaScript into a drag-and-drop bookmarklet — strips comments, compresses whitespace, and URI-encodes for the browser.