How to Remove PHI from DICOM Files (Free, No Upload)
Every DICOM file carries patient name, date of birth, and institution data in its header. Learn what PHI is, why it matters under HIPAA and GDPR, and how to strip it safely without uploading your medical images anywhere.
Read articleWhat Is a DICOM File? A Plain-English Guide
DICOM is the standard format for medical images — CT scans, MRIs, X-rays. Learn what makes it unique, why it contains patient data, and how to open or convert .dcm files without specialised software.
Read articleHow to Open DICOM Files on Windows, Mac & Browser
Your radiologist sent you a CD with .dcm files and your computer can't open them. Here are the best free options — including a fully client-side browser tool that never uploads your medical images.
Read articleDICOM vs JPEG: What's the Difference for Medical Images?
DICOM and JPEG both store images but serve completely different purposes. Learn the key differences — bit depth, metadata, Window/Level — and when converting between them is appropriate.
Read articleHow to Reduce PDF File Size (Free, No Upload)
Large PDFs are a pain to email and share. This guide explains why PDFs get so big and gives you four methods to shrink them — including a fully browser-based approach that never sends your document anywhere.
Read articleHow to Split a PDF Into Separate Pages (Free, No Upload)
Four methods to split a PDF or extract specific pages — including a browser-based tool that never uploads your document. Covers page range syntax and when each method is best.
Read articleWebP vs AVIF vs JPG vs PNG: Which Format Should You Use?
A practical breakdown of every modern image format: what each one is good for, how much file size you save by switching, and when to convert. Includes a simple decision guide.
Read articleHow to Resize an Image Without Losing Quality
When resizing preserves quality (downscaling) and when it doesn't (upscaling). Best formats for resized images, common target dimensions for social media, and how to do it without uploading.
Read articleHow to Compress Images for the Web (Without Ruining Quality)
Unoptimised images are the most common cause of slow websites. This guide covers format selection, quality settings, and how to compress without uploading your images anywhere.
Read articleWhat Is a QR Code? How It Works & How to Create One Free
How QR codes encode data, what error correction means, what types of data they can store, and how to generate a custom QR code for free without any account.
Read article