Guides

How file formats and size limits actually behave, tested on real files. Each guide links to the free tool that does the job in your browser.

• HEIC vs JPG: what you actually lose when you convert iPhone photosWe measured it: a JPG at quality 92 is 7–54% bigger than the iPhone HEIC with near-zero visible loss. What you do lose, and how to convert on Windows, Mac and iPhone.November 2, 2026 · 5 min read
• How to compress a photo to under 100 KB for online forms (without it looking awful)Resize first, then lower quality. A worked example with measured sizes shows why 1,000–1,200 px is the sweet spot for 100 KB, plus settings for 50 KB and 20 KB.November 2, 2026 · 5 min read