Image Compressor does one thing and does it well: it lets you reduce image file size without noticeable quality loss without the usual hassle. Here's how to get the most from it.
Compress images instantly in your browser — no upload, no waiting.
This guide walks through the whole thing: what it's for, how to use it step by step, a few tips I wish someone had told me earlier, and the questions people ask most.
The part I like most? Everything runs right in your browser. Nothing gets uploaded to a server, so your files stay on your own device the whole time.
What is Image Compressor, really?
Reduce image file size without noticeable quality loss. It works with JPG, PNG, and WebP files, which covers what most people need day to day.
Think of it as a focused tool rather than a giant suite. That's a good thing — there's no menu-diving, no learning curve, and no forty settings you'll never touch.
Using it: the actual steps
You'll be through this in a couple of minutes. Here's how it goes:
- Select up to 20 JPG, PNG, or WebP images. You can open it here: Image Compressor.
- Set quality and optional max width, then click Compress.
- Click any thumbnail to compare before and after.
- Adjust quality per image and click Apply, then Save or Save all (ZIP). That's it — you're done.
Common mistakes (and how to dodge them)
Nothing here is a big deal, but these trip people up more than you'd think:
- Closing the tab too early. Let it finish before you navigate away, especially on slower connections.
- Refreshing mid-process. Since the work happens in your browser, a reload starts you over.
- Expecting perfection on the first pass. If it's not right, adjust one option and run it again — that's normal.
- Uploading the wrong version of a file. Close old tabs and double-check the filename first.
Tips for better results
These aren't rules, just things that have saved me time:
- Resize before you compress — shrinking dimensions cuts file size far more than quality tweaks alone.
- Try the default settings first. They're tuned for the most common case, and you can always tweak from there.
- Keep a copy of the original before you start — it takes a second and saves you if you want to redo it.
- For photos, WebP usually gives you the best size-to-quality ratio these days.
- Start from the highest-quality source you have. Compressing an already-compressed image just stacks the damage.