Guides & Tutorials
In-depth articles to help you work with files more effectively. From PDF compression techniques to security best practices—learn from a student developer who built these tools.
These guides are written to help you understand not just how to use file tools, but whycertain techniques work better than others. Whether you're a student working on assignments, a professional handling sensitive documents, or a developer building applications, you'll find practical knowledge here that goes beyond simple tutorials.
How to Compress PDFs Without Losing Quality
Learn the science behind PDF compression and discover techniques to reduce file size while preserving text clarity and image sharpness.
Read GuidePDF Compression vs Optimization: What's the Difference?
Understand the key differences between compressing and optimizing PDFs, and learn when to use each approach for best results.
Read GuideFile Checksums: Protect From Corrupted Downloads
Discover how checksums and hash verification protect your downloads from corruption and tampering.
Read GuideClient-Side Processing: Why Privacy Matters
A deep dive into how browser-based file processing keeps your sensitive documents completely private.
Read GuideBest Image Formats for Web in 2025
Compare JPG, PNG, WebP, and AVIF to choose the right format for your website images.
Read GuideMD5 vs SHA-256: Which Hash Should You Use?
Compare cryptographic hash algorithms and learn which one is right for your security needs.
Read GuideBrowser-Based Tools vs Online Uploads: Safety Comparison
Why processing files locally in your browser is safer than uploading to cloud services.
Read GuideHow to Reduce PDF Size for Email Attachments
Practical techniques to shrink large PDFs so they fit within email attachment limits.
Read GuideWhy I Wrote These Guides
When I started building FileMint as a university project, I realized that most "how-to" content about file conversion is either too basic (just explaining buttons) or too technical (written for software engineers). There wasn't much in between for regular people who want to understand what's actually happening to their files.
These guides fill that gap. Each article explains the concepts behind the tools—not just step-by-step instructions, but the reasoning that helps you make better decisions. For example, understanding why PDF compression works (and its limitations) helps you choose the right approach for your specific situation.
I've learned a lot about file formats, compression algorithms, and web security while building these tools. These guides share that knowledge in a way that's accessible to anyone, regardless of technical background. If you have questions or want me to cover a specific topic, feel free to reach out.