About Developer Tools
Essential tools for developers. Encode strings, generate passwords and UUIDs, hash data, test regex, format JSON, and more. All tools are free, require no registration, and provide instant results.
Available Tools (12)
Password Generator
Generate strong, secure passwords instantly. Customize length and character types for any securit…
Base64 Encoder
Encode text to Base64 or decode Base64 to text. Free online Base64 converter for developers.
UUID Generator
Generate random UUIDs (version 4) instantly. Free UUID generator with bulk generation support.
HTML Encoder
Encode special characters to HTML entities or decode them back. Free HTML encoder for safe display.
URL Encoder
Encode text for safe use in URLs or decode URL-encoded strings. Free URL encoder for developers.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text or files. Free online hash generator.
Regex Tester
Test and debug regular expressions with live matching. Free regex tester with flags support.
Cron Expression Builder
Build cron expressions visually with plain English descriptions. Free cron schedule generator.
JWT Decoder
Decode and inspect JWT tokens. View header, payload, and verify expiration. Free JWT decoder.
Code Minifier
Minify JavaScript, CSS, and HTML code. Remove whitespace and reduce file size. Free code minifier.
JSON Formatter
Format, validate, and beautify JSON data instantly. Free JSON formatter with syntax highlighting.
QR Code Generator
Generate QR codes for URLs, text, WiFi, and more. Download as PNG or SVG. Free QR code maker.
Features
- All tools are completely free to use
- No registration required
- Instant results with no page reloads
- Works on desktop, tablet, and mobile
- Dark mode support
Frequently Asked Questions
Is data processed securely?
Yes, all processing happens locally in your browser using JavaScript. Your data is never sent to our servers, making these tools safe for sensitive information.
Are the generated passwords/UUIDs truly random?
We use cryptographically secure random number generation (crypto.getRandomValues) when available, providing high-quality randomness suitable for most applications.