Simple Mini ToolsDeveloper Tools
Essential developer utilities for encoding, formatting, generating, and testing.
URL Parser
Break down a URL into protocol, host, path, query params, and more.
URL Encoder / Decoder
Encode or decode URL components and full URLs.
HTML Entity Encoder / Decoder
Encode special characters to HTML entities or decode them back.
User Agent Parser
Parse browser, OS, and device info from a User-Agent string.
HTTP Status Code Reference
Searchable list of HTTP status codes with descriptions.
Regex Tester
Test regular expressions with live match highlighting.
CSS Minifier
Minify CSS code and see the space savings.
CSS Box Shadow Generator
Generate CSS box-shadow values visually with a live preview.
Markdown Previewer
Write Markdown and see a live HTML preview.
Password Generator
Generate strong, random passwords with customizable options.
Password Strength Checker
Check the strength of any password with entropy score and improvement tips.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text.
UUID Generator
Generate random UUIDs (v4) individually or in bulk.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
JWT Decoder
Decode JWT tokens to inspect header and payload data.
Cron Expression Parser
Parse cron expressions into human-readable descriptions.
Crontab Generator
Build cron expressions visually with a human-readable description.
SQL Formatter
Format and beautify SQL queries with dialect support.
CSV to JSON / JSON to CSV
Convert between CSV and JSON formats with delimiter options.
JSON Formatter & Validator
Format, validate, and minify JSON with syntax highlighting.
YAML Formatter
Format and validate YAML with configurable indent.
YAML ↔ JSON Converter
Convert between YAML and JSON formats instantly.