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Client-Side Sandbox

Your files and data are processed locally on your device with zero server egress.

Native Browser Engines

Sub-millisecond WebAssembly, WebCrypto, Canvas & Worker pipelines.

RFC & Industry Standards

Tested against official RFC test vectors and W3C cryptographic specifications.

6,423+ high-performance developer utilities running securely in your browser.

All 6,423+ Engines Operational

Developer Tools

CSS to Tailwind CSS Utility Class Transpiler & Converter JSON Schema to TypeScript & Zod Transpiler RFC 1035 BIND DNS Master Zone File Generator & Validator

Automated Readability Index (ARI) Grade Level Calculator Text Accent & Diacritical Mark (é, ü, ñ -> e, u, n) Normalizer ROT13 & Caesar Cipher (A-Z Rotate by 13) Decoder

Unit & Code Converters

Acre To Are Conversion Calculator Acreage Calculator Acres To Hectares Converter Calculator

NanoID Custom Alphabet & Cryptographic URL Identifier Generator CUID2 Secure Collision-Resistant Unique Identifier Generator Random Mock Credit Card (Visa, Mastercard, Amex) Luhn Generator

PDF Grayscale & Monochrome Black-and-White Document Studio PDF Odd and Even Page Splitter (Duplex Manual Printing)PDF Embedded Image Stream (XObject / DCTDecode) Inspector

Image Processing

Photo High-Contrast Binary 1-Bit Black & White Threshold Studio Photo 360° Hue Rotation & Psychedelic Color Shift Studio Photo 3D Emboss & Bas-Relief Convolution Matrix Studio

0 60 Calculator 100 Day Calculator 120 Day Calculator

Security & Network

Shannon Entropy & Randomness Analyzer XOR Cipher Automated Key Brute-Force & Plaintext Scorer HTTP Security Headers & Content Security Policy (CSP) Auditor

Color & Palette

CSS Checkerboard Transparency Background Pattern Generator Split-Complementary 3-Color Harmony Palette Generator CSS Glassmorphism & Frosted Glass (`backdrop-filter`) Studio

Microsoft Excel Serial Date Number (e.g. 45533) to ISO Date Converter Astronomical Julian Day Number (JDN & Modified MJD) Calculator Unix Epoch Nanoseconds & Microseconds to UTC Timestamp Converter

Geo-Targeting & `content-language` HTML `<meta>` Tag Generator OpenGraph Music (`music:song`, `music:album`) Metadata Builder Schema.org `Organization` & Brand Logo JSON-LD Structured Data Builder

AI LLM Inference Cost (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro) Estimator Anthropic Claude XML Tag (`<context>`, `<instructions>`) Prompt Wrapper LLM Prompt Chaining & Multi-Step Workflow Pipeline Builder

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