Straight, practical answers — how to keep quality high, choose the right format, speed up your pages, and hit the size limits that email and social platforms throw at you.
The practical playbook for shrinking image files while keeping them sharp: the quality/size trade-off, the right format, and a repeatable workflow.
A decision guide to the four formats that matter — how they compress, what they are best at, browser support, and how to choose fast.
Read guide →⚡Why image weight is usually the #1 cause of a slow page, how it hits Core Web Vitals and rankings, and how to fix it.
Read guide →✉️Real attachment limits for Gmail, Outlook and the rest — and the fastest ways to get your photos under them without emailing a blurry mess.
Read guide →📐Three words people use interchangeably that do very different things. Learn which one actually reduces your file size — usually all three, in order.
Read guide →🧬What actually happens to your pixels in each mode, why lossy is smaller, when lossless is worth it, and how to avoid visible artifacts.
Read guide →📱A copy-paste cheat sheet of the right dimensions and file tips for Instagram, Facebook, X, LinkedIn, Pinterest, YouTube and TikTok.
Read guide →🔒What actually happens to a photo you upload to an online compressor, the real privacy risks, and how to tell a trustworthy tool from a sketchy one.
Read guide →Batch-compress your images — up to 20 per batch free, unlimited on Pro. Pick a use-case preset, or fine-tune quality. Free, no account.
Open the compressor →