Guides to file formats
Plain-English help for choosing the right format, converting files and keeping them small.
How to Convert HEIC to JPG on iPhone, Windows and Mac
Why iPhone photos are saved as HEIC, how to convert HEIC to JPG on iPhone, Mac, Windows or online, and which setting gives the best quality.
4 min read
MP4 vs MOV vs MKV vs AVI: Which Video Format Should You Use?
A plain-English comparison of MP4, MOV, MKV and AVI: compatibility, quality, file size and the best format for YouTube, editing, archiving and old devices.
5 min read
JPG vs PNG vs WEBP vs AVIF: Choosing the Right Image Format
Compare JPG, PNG, WEBP and AVIF for photos, logos, screenshots and websites. Learn which image format is smallest, sharpest and best supported.
5 min read
How to Reduce Video File Size Without Losing Quality
Practical ways to shrink a video: lower the resolution, pick a modern codec, adjust quality, remove audio and choose the right format. Step by step.
4 min read
Lossy vs Lossless: What It Means for Images, Video and Audio
Lossy compression throws away detail to save space; lossless keeps every pixel. Learn the difference, when each is best and how it affects file conversion.
3 min read
Best Image Format for Websites and SEO in 2026
Which image format makes your website load fastest and rank better? WEBP, AVIF, JPG, PNG and SVG compared, with practical tips for Core Web Vitals.
5 min read