Guides

We test representative inputs and remove tools with known incomplete workflows. Tests cannot cover every file or edge case. Format support, limits and examples are shown on tool pages. If a result looks wrong, keep the original and send us a reproducible example without personal information.

JPG, PNG, WebP or AVIF: choosing an image format

Start with what the image needs to preserve. PNG keeps sharp text and transparency without lossy compression. JPG is widely compatible for photographs, but has …

Bits, bytes and realistic transfer times

One byte is eight bits. A 100 Mbps connection has a theoretical maximum of 12.5 MB per second, before protocol overhead, Wi-Fi conditions or the remote server s…

Readable URLs: a practical slug checklist

A slug is the readable part of a page address. Use a short phrase describing the actual page, separate words with hyphens and avoid punctuation that adds no mea…