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The instrument library

60 tools. Zero uploads.

Every tool runs in your browser — files never leave your device. Plus 20 IT cheat sheets for quick reference.

Documents & Images

12

Image Compress Compress images without losing quality Image Convert Convert images between formats (PNG, JPG, WEBP) Image Resize Resize images to specific dimensions Image Rotate Rotate and flip images easily PDF Merge Combine multiple PDFs into one file PDF Split Split PDF pages into separate files PDF Compress Reduce PDF file size for easier sharing PDF to Images Convert PDF pages to JPG or PNG Image to PDF Convert images to a single PDF document HEIC Converter Convert iPhone HEIC photos to JPG/PNG EXIF Remover View and remove photo metadata Background Remover Remove image backgrounds using AI

Productivity

3

Pomodoro Timer Focus timer for productivity Typing Test Test your typing speed Invoice Generator Create professional invoices instantly

Network Tools

5

What is My IP Check your public IP address Subnet Calculator Calculate IP subnets and ranges DNS Lookup Query DNS records (A, MX, NS, etc.) User Agent Parser Analyze your browser user agent string HTTP Headers View your HTTP request headers

Generators

6

QR Code Generate custom QR codes Barcode Create barcodes for products QR Reader Scan QR codes from images or webcam Lorem Ipsum Generate placeholder text Password Generate strong, secure passwords UUID Generate unique ID strings

Conversion & Text

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Case Converter Convert text case (upper, lower, title, etc) JSON Formatter Beautify and validate JSON data Markdown Editor Live Markdown preview and editing Text Diff Compare two text blocks for differences Timestamp Convert Unix timestamps to human dates Find & Replace Advanced text search and replace Remove Dupes Remove duplicate lines from text lists Base64 Encoder Encode and decode Base64 strings URL Encoder Encode/Decode URLs for safe usage Text Counter Count words, chars, and reading time JSON to CSV Convert JSON data to CSV format

Privacy & Security

7

Password Generator Generate strong passwords Password Strength Check how secure your password is Hash Generator Generate hashes (MD5, SHA-256) Encryption Tool Encrypt and decrypt text securely UUID Generator Generate UUID v4 identifiers Secure Notes Create encrypted notes stored locally File Checksum Calculate SHA-256/SHA-512 file hashes

Calculators

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Percentage Calculate percentages and changes Date Calc Calculate duration between dates Loan Calc Estimate monthly loan payments Unit Converter Convert length, weight, and more

Developer Tools

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CSS Minifier Minify CSS code JS Minifier Minify JavaScript code HTML Minifier Minify HTML code Regex Tester Test regular expressions with live highlighting JWT Debugger Decode and inspect JWT tokens SQL Formatter Format and beautify SQL queries Cron Generator Build cron expressions visually

Design & Color

5

Color Picker Pick colors and get HEX/RGB/HSL values Color Converter Convert between varying color formats Gradient Generator Create and export CSS gradients SVG Optimizer Optimize and minify SVG files Favicon Generator Generate all favicon sizes from one image

SEO Tools

2

Meta Tags Generate SEO meta tags Robots.txt Create robots.txt files

Reference & Cheat Sheets

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Network Ports TCP/UDP ports cheat sheet OSI Model 7 layers of the OSI model Subnetting CIDR and subnet masks Linux Commands Essential Linux CLI reference Cryptography Encryption algorithms guide Attack Types Cyber attack types reference WiFi Standards 802.11 wireless comparison All Cheat Sheets View all 20 IT cheat sheets

100% private. All tools run directly in your browser — your files and data never leave your device. Client-side processing · no server uploads · works offline.

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