On most websites, images account for the majority of the page weight. That makes image compression the single highest-impact thing you can do for speed — and faster pages mean happier visitors and better search rankings.
Why image size matters so much
Every kilobyte a visitor has to download delays the moment your page becomes usable. On mobile connections, a few oversized images can add seconds to load time. Search engines factor page speed into rankings, so bloated images quietly cost you both visitors and visibility.
Two levers: dimensions and compression
There are two ways to make an image lighter, and you should use both:
- Resize to the dimensions it will actually display — a 4000px photo shown at 1000px is mostly wasted data. Start with the image resizer.
- Compress the resized image to squeeze out the rest without visible loss.
Step-by-step
- Resize the image to its display size first.
- Open the image compressor and drop it in.
- Choose a compression level and download the lighter file.
It all runs in your browser — no uploads, and it works on a phone or laptop alike.
How much can you save?
Compressing photos often cuts file size by 50–80% with no difference the eye can detect. Combined with proper resizing, a page that was several megabytes of images can drop to a few hundred kilobytes.
Tip: Use JPG for photos and PNG only for graphics that need sharp edges or transparency. Choosing the right format before compressing makes a big difference.
Choosing format and quality
For photographs, JPG at around 80% quality is the web sweet spot — small and sharp. For logos and icons, keep PNG. If you have huge PNG photos, convert PNG to JPG first for an instant saving, then compress.
Frequently asked questions
Will compression make my images look bad?
At sensible levels, no — 50–80% smaller with no visible difference is typical.
Should I resize or compress?
Both — resize to display size first, then compress what's left.
Are my images uploaded?
No — compression happens entirely in your browser.
