Available Tools
Every tool below runs entirely in your browser - nothing you type or upload is ever sent to a server. Pick a tool to get started, or read on to see how these utilities are built and why browser-only processing matters for everyday developer and IT tasks.
🔒 Password Generator
Generate strong, secure passwords with customizable options. All processing happens in your browser for maximum security.
Active📋 JSON Formatter
Format, validate, and beautify JSON data. Perfect for developers working with APIs and configuration files.
Active🔤 Base64 Encoder
Encode and decode Base64 strings quickly and easily. Useful for encoding images, files, and data.
Active🔑 JWT Decoder
Decode a JSON Web Token to read its header, claims and expiry, without sending the token anywhere
Active🔍 Regex Tester
Test and debug regular expressions with real-time feedback. Includes common regex patterns and examples.
Active🔀 Diff Checker
Compare two texts line by line and word by word, and copy the result as a unified diff
Active🎨 Color Converter
Convert between HEX, RGB, HSL, and other color formats. Perfect for designers and developers.
Active🔐 Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes. Verify integrity and checksums quickly.
Active🛡️ CSP Hash Generator
Hash every inline script and style in a page for your Content Security Policy, exactly as the browser does
Active📷 EXIF Remover
Reveal and strip the GPS location, timestamps and serial numbers hidden inside a photo, without uploading it anywhere
Active⏰ Cron Generator
Create and understand cron expressions easily, in standard 5-field cron or 6-field NCRONTAB for Azure Functions.
Active📅 Cron Parser
Explain a cron expression and preview its next run times
Active🕒 Timestamp Converter
Convert Unix timestamps to dates and back, with the unit detected for you and the result shown across time zones
Active🆔 UUID Generator
Generate universally unique identifiers (UUID/GUID) for your applications and databases.
Active🌈 CSS Gradient Generator
Create linear and radial CSS gradients visually with a live preview, multiple color stops, and one-click CSS copy.
ActiveAI Developer Tools
Tools for building with large language models: count tokens, estimate API costs and check context limits without sending your prompts anywhere.
About Our Tools
We provide free, easy-to-use online utility tools for developers, designers, and anyone who needs quick access to common utilities. All our tools are designed with privacy in mind - most processing happens directly in your browser, meaning your data never leaves your device.
These tools get daily use from web developers debugging API responses, IT professionals scheduling cron jobs, designers converting color formats, and anyone who just needs a quick password or UUID without installing software or creating an account. Because everything runs locally, they work equally well for a one-off task and for repeated daily use.
For educational content, see our Password Security Guide covering password history, security standards, and strength impact.
Features
- Privacy First: Client-side processing means your data stays on your device
- No Registration: Use any tool instantly without creating an account
- Always Free: All tools are completely free to use
- Mobile Friendly: Responsive design works on all devices
- Fast & Lightweight: Optimized for speed and performance