Blog
Guides, tips, and tutorials on file processing — all focused on privacy-first, browser-based tools.
How to Compress a PDF Without Uploading It to the Internet
Learn how to reduce PDF file size completely privately, without sending your document to any server. FileMuncher compresses PDFs directly in your browser using WebAssembly.
5 Free Tools to Convert Video to MP4 Online in 2026
A hands-on comparison of the best free video-to-MP4 converters available in 2026, including tools that work entirely in your browser without uploading your files.
The Best Free Audio Extraction Tools Compared
A practical comparison of free tools for extracting audio from video files. From browser-based options to desktop software, here's what works best for different needs.
Browser-Based vs Cloud-Based File Tools: Which Is More Secure?
A technical breakdown of how browser-based and cloud-based file processing tools differ in terms of privacy, security, and data handling. What actually happens to your files.
Complete Guide to PDF Compression: How It Works and When to Use It
Everything you need to know about PDF compression — the technical mechanics, compression techniques, when it helps (and when it doesn't), and how to get the best results.
Free QR Code Generator: No App, No Sign-Up, Just Scan
Create QR codes for URLs, contact cards, Wi-Fi credentials, and plain text without downloading an app or creating an account. A guide to generating and using QR codes for free.
How to Merge PDFs Without Signing Up for Anything
Combine multiple PDF files into one without creating an account, entering your email, or uploading files to a server. A guide to truly free, private PDF merging.
How to Reduce Image File Size for Web Without Losing Quality
A practical guide to image compression for web — which formats to use, how much to compress, browser-based tools versus desktop software, and how to get the best results.