Client Side Tools

Make printable Secret Santa name slips. Type the names, print the page, cut out the slips and draw names from a hat at parties and gift exchanges.

Generate and explore CMYK color codes with interactive sliders. Create custom CMYK colors or generate random combinations. Perfect for print design, branding, and color exploration with instant conversion to RGB, HEX, and other formats.

Generate customizable CSS transparency grids with checkerboard patterns for displaying transparent images and elements

Interactive playground for testing and experimenting with Fuse.js fuzzy search library. Configure all search options and see real-time results.

Test the experimental Chrome built-in Translator and Language Detector Web APIs directly in your browser. Translate text on-device, auto-detect the source language, watch model download progress, and inspect language detection confidence — no server required.

Test the experimental Chrome built-in Prompt API (LanguageModel) directly in your browser. Send prompts to Gemini Nano on-device, configure a system prompt and sampling parameters, watch responses stream in real time, and monitor model download and context window usage.

Create custom demotivational posters with classic black borders and text

Generate and validate BIP39 mnemonic phrases for cryptocurrency wallets. Create secure recovery phrases with 12-24 words, convert between entropy and mnemonics, and derive cryptographic seeds with optional passphrases.

Validate and format JavaScript code in a syntax-highlighted editor.

Edit, validate, and format JSON with syntax highlighting. Instantly prettify or minify JSON, validate syntax, and edit with a full-featured code editor.

Edit, validate, and format MDX content with syntax highlighting. Combines Markdown and JSX in one powerful editor.

Edit, validate, and format TOON (Token-Oriented Object Notation) with syntax highlighting. Convert between JSON and TOON, validate syntax, and format token-efficient data for LLMs.

Generate visual keyboard shortcut images for tutorials and documentation. Capture key combinations, choose Windows/Mac/Generic style, and export as PNG, JPG, or WEBP. Perfect for creating help guides, training materials, and software documentation.

Analyze keyword density and frequency in your text to check how often specific keywords or phrases appear.

Convert CSS styles to Tailwind CSS utility classes instantly. Transform traditional CSS syntax into modern Tailwind classes. Perfect for migrating projects to Tailwind or learning Tailwind equivalents of CSS properties.

Open multiple URLs in new browser tabs at once. Paste a list of URLs and open them all with a single click.

Create a visual countdown to any date and time. Perfect for tracking deadlines, events, birthdays, holidays, product launches, and celebrations.

Test and measure your reaction time with this interactive click-based reaction tester

Use your webcam as a mirror with real-time mirrored video display

Extract dominant colors from images using color quantization. Analyze photos to find their main color palette.

Flip a virtual coin to make random decisions. Track heads and tails statistics with history.

Generate all possible permutations of characters in a string. Enter any text and see every unique arrangement of its characters.

Shift characters in text to the left by a specified number of positions

Shift characters in text to the right by a specified number of positions