10 Best Free Online PDF Tools in 2026
Discover the essential PDF tools you need - convert, compress, merge, split, and edit PDFs without installing software.
📚 XCT Labs Blog
Tips, tutorials, and insights on PDF tools, image editing, security, and web development.
HEIC vs JPG: Which Format Should You Use?
Compare HEIC and JPG formats. Learn the differences, pros and cons, and when to use each for your photos.
How to Create Strong Passwords You Can Remember
Learn techniques to create strong, memorable passwords. Protect your accounts without forgetting credentials.
Base64 Encoding Explained for Beginners
Learn what Base64 encoding is, how it works, and when to use it. A beginner-friendly guide with examples.
QR Code Uses You Never Thought Of
Discover creative uses for QR codes beyond basic links - from WiFi sharing to digital business cards.
How to Compress PDF Without Losing Quality
Learn the best techniques to reduce PDF file size while maintaining document quality.
Complete Guide to Image Optimization for Websites
Discover how to optimize images for faster loading times and better SEO with compression tips.
Why Client-Side Processing Matters for Your Privacy
Understanding the difference between server-side and client-side file processing for data security.
JSON Formatting Best Practices for Developers
Master JSON formatting, validation, and debugging. Essential tips for API development.