Fast, Privacy-First Online Tools
All running locally in your browser. No uploads, no tracking, no compromises.
Popular Tools
Your frequently used tools and community favorites
JSON Formatter & Validator
Pretty print, validate, and format JSON data with syntax highlighting and error detection.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to plain text instantly.
Password Generator
Generate secure random passwords with customizable length and character options.
HEX / RGB / HSL Color Converter
Convert colors between HEX, RGB, and HSL formats with live preview.
Percentage Calculator
Calculate percentage change, discounts, markup, and more with formula explanations.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from text using the Web Crypto API.
Image Compressor
Compress images locally with quality and resize controls.
UTM Builder
Build UTM-tagged URLs for campaign tracking in Google Analytics.
Explore by Category
Tools organized by purpose. Find exactly what you need.
Developer Tools
Essential utilities for developers working with data formats, code, and text processing.
Encoders & Text Tools
Encode, decode, and transform text with Base64, URL encoding, case conversion, and more. Essential tools for handling text data safely across different systems and protocols.
Security & Crypto Tools
Client-side cryptographic utilities for hashing, password generation, token creation, and data verification. All operations happen locally in your browser for maximum privacy—no data is ever sent to any server.
SEO Tools
Offline, template-based SEO utilities for generating and validating meta tags, structured data, sitemaps, and more. All tools run locally—no crawling or external API calls.
Design, Color & Media Tools
Client-side design utilities for color conversion, contrast checking, gradient generation, palette creation, and image processing. All files are processed locally—nothing is uploaded to any server.
Everyday Math & Productivity
Simple calculators for percentages, unit conversions, tips, interest, dates, and number bases. All calculations run locally in your browser for complete privacy.
Built for Privacy
Every tool runs 100% in your browser. Your data never leaves your device.
No Uploads
All processing happens locally. Files and text never leave your browser.
No Tracking
No cookies, no analytics, no user tracking. Your usage is your business.
No APIs
Zero external API calls. Works offline after initial load. Completely self-contained.
