QR Code Generator | Tool Lab

Developer Utilities

JSON prettify and error check

Format, validate, and beautify XML

Compare text and code differences

Test regular expression patterns in real time. Supports match highlighting, capture groups, replacement, and flags.

Base64 Encoder/Decoder

Text and image to Base64 conversion

Convert Unix timestamps to human-readable dates and vice versa.

Content & Writing

Real-time character and word count

Bulk uppercase/lowercase/title conversion

Markdown Editor

Markdown writing and live preview

Lorem Ipsum Generator

Generate placeholder text

Reading Time Calculator

Calculate estimated reading and speaking time for any text based on your reading speed.

Markdown to HTML

Convert Markdown to HTML with live preview.

Image & Design

Image Thumbnail Maker

Crop images to exact sizes for YouTube, Instagram, X, TikTok, and more. Drag to reposition. No upload required.

Resize images to custom dimensions and save as PNG, JPEG, or WebP.

Pick colors and get HEX, RGB, HSL

CSS Gradient Generator

Create CSS gradients with preview

Color Palette Generator

Generate harmonious color palettes based on color theory.

Image Optimizer

High-compression WebP conversion

Security & Web

Password Generator

Generate strong secure passwords

Generate MD5, SHA-256 cryptographic hashes

Universally Unique Identifier (v4) generator

URL Encoder/Decoder

Encode and decode special URL characters

QR Code Generator

Instantly convert text or URLs to QR codes

All Tools

Developer Utilities

JSON Formatter SQL Formatter Java Viewer Base64 Encoder/Decoder JWT Debugger HTML Entity Converter XML Formatter HTML Formatter CSS Formatter YAML Formatter JavaScript Beautifier JSON Minifier CSS Minifier HTML Minifier JavaScript Minifier CSV Viewer Diff Checker Regex Tester JSON → XML Converter XML to JSON JSON → YAML Converter YAML to JSON CSV to JSON JSON to CSV Number Base Converter HTML Table Generator Meta Tag Generator OG Tag Generator Unix Timestamp Date Calculator Age Calculator Percentage Calculator Unit Converter Tip Calculator BMI Calculator Mortgage Calculator Loan EMI Calculator Compound Interest Calculator TypeScript Beautifier Text ↔ Binary / Hex Roman Numeral Converter Morse Code Encoder / Decoder JSON → TypeScript Converter Cron Parser URL Parser Unicode Converter JSON to Table PHP Code Formatter Python Formatter CSS Validator XML Validator CSV to XML Converter XML to CSV CSV to HTML Table Converter Text to ASCII Code Hex Encoder / Decoder Base32 Encoder / Decoder URI Component Encoder Email Extractor URL Extractor String Escape / Unescape Binary to Text Converter Text to Hex Hex to Text HTML Form Generator HTML Character Codes HTML Tags Reference HTML Viewer robots.txt Generator XML Sitemap Generator JSON-LD Schema Generator Google Snippet Preview Twitter Card Preview Timezone Converter Duration Calculator Day of Week Calculator ISO Week Number Calculator Date Format Converter Business Days Calculator Cron Next Run Calculator Random Number Generator Average Calculator LCM & GCD Calculator Geometry Calculator Triangle Calculator Scientific Calculator ROI Calculator Discount Calculator Inflation Calculator Salary Calculator Income Tax Estimator Data Storage Converter Speed Converter Area Converter Volume Converter Energy Converter HTTP Status Codes User Agent Parser URL Validator & Parser Keyword Density Checker ASCII Character Table Git Commands Cheat Sheet Linux Commands Reference Markdown Syntax Reference SQL Cheat Sheet Canonical Tag Generator Temperature Converter Length Converter Weight & Mass Converter Time Unit Converter Angle Converter Pressure Converter Fuel Efficiency Converter Statistics Calculator Fibonacci Generator Prime Number Checker Factorial & Combinatorics Probability Calculator Iframe Generator Cookie Policy Generator HTTP Headers Reference Regex Reference CSS Properties Reference JSON Validator Markdown Table Generator Number Formatter SEO Checklist Currency Converter JSONPath Tester Variable Name Generator JSON to GraphQL Types

Image & Design

Image Optimizer Favicon Generator SVG to PNG Converter Color Converter Color Picker CSS Gradient Generator Box Shadow Generator Border Radius Generator Image Resizer Color Palette Generator Image to Base64 Base64 to Image Color Contrast Checker Tint & Shade Generator Color Mixer Color Scheme Generator CSS Named Colors CSS Text Shadow Generator HEX to RGBA Flexbox Generator CSS Grid Generator CSS Animation Generator CSS Transition Generator CSS Filter Generator CSS Clip-Path Generator HTML Color Names Placeholder Image Generator SVG Viewer & Editor PNG to JPG Converter JPG to PNG Converter WebP Converter Color Blindness Simulator Font Pairing Guide Color Palette Generator Image Thumbnail Maker

Content & Writing

Word Counter Case Converter Markdown Editor Lorem Ipsum Generator Markdown to HTML HTML to Markdown Converter HTML to Plain Text Converter Text Line Sorter Duplicate Line Remover Reading Time Calculator URL Slug Generator Character Frequency Analyzer Find & Replace Tool Text Reverser Line Numberer Whitespace Remover Number to Words Readability Score Analyzer Palindrome Checker Anagram Checker Text Wrapper List Sorter Typing Speed Test Table of Contents Generator Text Statistics

Security & Web

URL Encoder/Decoder Password Generator Hash Generator UUID Generator QR Code Generator ROT13 / Caesar Cipher JWT Generator Password Strength Checker Random Token Generator Secret Key Generator HMAC Generator AES Encryptor / Decryptor TOTP / OTP Generator MD5 Hash Checker Password Policy Checker

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