Guides

Practical notes on images, formats and the parts of the web that quietly break.

• Compressing images on Telegram: why the picker fails and what to do

  Telegram shows a 50 MB file limit but still compresses photos. Here is how its built-in browser breaks the file picker, and how to batch-compress images before sending.

  Updated 2026-10-21

• HEIC to JPG: why iPhones use HEIC and how to convert without uploading

  iPhone photos are HEIC by default and many sites reject them. Here is why, the browser limits on decoding HEIC, and the fastest path to JPG.

  Updated 2026-10-21

• E-commerce product image sizes: a practical checklist

  What size each marketplace actually wants, how much compression is safe, and how to batch-process a whole product folder in the browser.

  Updated 2026-10-21

• PNG vs JPG vs WebP: how to pick without guessing

  The three formats solve different problems. A short decision rule based on what is in the image, not on marketing claims.

  Updated 2026-10-21