Developer & Encoder Tools
Collection of free & secure developer & encoder tools. Your data stays private inside your browser — zero data saved on servers.
Developer & Encoder Tools
All Developer & Encoder Tools
Base64 Encoder & Decoder
Safely encode or decode UTF-8 strings and data using standard Base64 algorithm.
CSV to JSON Converter
Convert any CSV file or data to formatted JSON instantly in your browser.
JSON Formatter & Beautifier
Format, validate, and beautify messy JSON strings with clean indentation.
JSON to CSV Converter
Convert any JSON array or object to CSV format instantly — all in your browser.
QR Code Generator
Create downloadable QR codes for websites, links, and contact cards.
Regex Tester
Test regular expressions with live match highlighting and detailed match groups.
Strong Password Generator
Generate secure random passwords to protect your accounts.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable Date & Time formats instantly.
Character Code Finder
Find ASCII, Unicode, HTML entity, and hex codes for any character.
Code Diff Checker
Compare two pieces of code or text side-by-side and highlight all differences.
Cron Expression Generator
Build, test, and validate cron expressions visually with a human-readable description.
CSS Beautifier
Format and beautify minified or messy CSS code with proper indentation.
CSS Minifier & Cleaner
Compress CSS stylesheet code to reduce file size and improve webpage load speed.
HEX to RGB Color Converter
Convert web HEX color codes into CSS RGB values with a visual color picker.
HTML Beautifier
Format and beautify minified or messy HTML code with proper indentation.
HTML Entity Encoder & Decoder
Convert special characters into HTML entities or decode entities back to plain text.
HTML Minifier
Minify HTML code by removing whitespace, comments, and redundant attributes.
HTML to Markdown Converter
Convert HTML tags and formatting to clean Markdown syntax instantly.
JavaScript Minifier
Minify JavaScript code by removing whitespace, comments, and unnecessary characters.
JSON Minifier
Minify and compress JSON by removing all unnecessary whitespace and formatting.
JWT Decoder
Decode and inspect any JSON Web Token (JWT) — view header, payload, and signature.
MD5 Hash Generator
Generate MD5 hash checksum from any text or string instantly in your browser.
Number Base Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hex (base 16).
SHA-1 Hash Generator
Generate SHA-1 hash from any text or string instantly in your browser.
SHA-256 Hash Generator
Compute 256-bit cryptographic SHA-256 hashes client-side.
SQL Formatter
Format messy SQL queries into clean, readable, properly indented code.
String Escape Unescape
Escape and unescape special characters in strings for JSON, HTML, XML, and URLs.
URL Encoder & Decoder
Convert spaces and reserved characters in query strings into valid URL percent-encoding.
UUID v4 Generator
Generate cryptographically random UUID v4 identifiers for databases and APIs.
XML to JSON Converter
Convert XML data to clean, formatted JSON instantly — all browser-based.