Essential Online Tools & Cheatsheets
A comprehensive collection of free online tools and quick reference guides for developers and power users. Convert images, manage PDFs, encode data, and access instant cheatsheets for programming languages and tools. Fast, secure, and private - all processing happens in your browser.
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Quick Reference
Access 190+ cheatsheets for programming languages, tools, and frameworks with syntax highlighting.
Share Results
Generate shareable URLs with encoded results for easy collaboration.
Popular Tools
View All ToolsImage Converter
Convert images between formats, resize, compress, and optimize with quality control.
PDF Merger
Upload multiple PDF files, reorder them, and merge into a single document.
PDF Splitter
Split PDF pages into individual files and download them as a ZIP archive.
Base64 Encoder/Decoder
Encode and decode Base64 strings with real-time conversion and URL sharing support.
Text Diff Checker
Compare two text inputs and visualize differences with multiple viewing modes.
Timezone Converter
Convert time between different timezones and view current time across multiple zones.
Popular Cheatsheets
View All CheatsheetsPython
Essential Python syntax, functions, and libraries for development
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Docker
Container management commands and Docker Compose reference
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Git
Version control commands and workflows for developers
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Bash
Shell scripting commands and terminal shortcuts
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JavaScript
Modern JavaScript syntax, methods, and ES6+ features
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CSS3
CSS3 properties, selectors, and modern layout techniques
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