FormatZ Blog

File formats, made simple

Guides, comparisons and how-tos about file formats and conversion — in plain language, with no fluff and real takeaways.

115 articles
What Is PSD? The Layered Photoshop FormatFormat Basics

What Is PSD? The Layered Photoshop Format

What is the PSD (Photoshop Document) format: why it is a layered project rather than a picture, how it differs from PNG and JPG, and how to open a…

9 minPSD
What Is RAW? A Photographer's Digital Negative, ExplainedFormat Basics

What Is RAW? A Photographer's Digital Negative, Explained

What is RAW in plain English: why it's a digital negative, how it differs from JPEG, how a camera records 12–14 bits of sensor data, and what a pho…

9 minRAW
What Is SVG? The Vector Format That Never Loses Quality at Any SizeFormat Basics

What Is SVG? The Vector Format That Never Loses Quality at Any Size

What is SVG: an XML-based vector format that describes a picture with math instead of pixels, so it stays sharp at any size. A plain-English guide…

8 minSVG
What Is TIFF? The Lossless Format for Print and ArchivingFormat Basics

What Is TIFF? The Lossless Format for Print and Archiving

What is the TIFF format: why a lossless raster format exists, how it stores up to 16-bit color and CMYK, why it became the standard for print and a…

9 minTIFF
What Is WebP? Google's Image Format That Speeds Up the WebFormat Basics

What Is WebP? Google's Image Format That Speeds Up the Web

What is WebP: Google's image format that is 25–34% smaller than JPEG and 26% smaller than PNG. A plain-English guide to its two compression modes,…

9 minWEBP
Where BMP Is Still Used in 2026Use cases

Where BMP Is Still Used in 2026

Where BMP is still used in 2026: embedded systems, medicine, Windows icons, industrial equipment and legacy software. Why the uncompressed format n…

9 minBMP
Why BMP Is So Large: How the File Is Built InsideTech

Why BMP Is So Large: How the File Is Built Inside

Why BMP is so large: we dissect the file byte by byte, do the size math on a 24-bit image, and explain why an uncompressed format takes up many tim…

9 minBMP