How to use the Image Compressor
Add your image
Drop in one photo at a time — JPG, PNG or WebP all work.
Set the quality
Drag the slider between 10 and 100. Pick JPG or WebP as the output, and set a maximum width if the image is bigger than it needs to be.
Compare
Check the original size, the new size and the percentage saved, and look at the before/after preview up close.
Download
Save the smaller file to your device.
Smaller images, same picture
Big images slow down websites, bounce off email size limits and get rejected by upload forms that cap files at 200 KB or 1 MB. Compression fixes that by removing detail your eye won’t miss.
How to get the best balance
- Resize first. Use the max width box, or the image resizer for exact dimensions. Fewer pixels means a smaller file before compression even starts.
- Choose WebP for the web. It gives the smallest files at the same quality. Pick JPG for email and older apps.
- Start at 80 and adjust. Zoom into the before/after preview, look at skin, sky and edges, and lower the slider until you can see a difference — then nudge it back up a step.
Quick quality guide
- 85–90: portfolio shots, product photos, images with small text
- 70–80: blog photos, social posts, everyday sharing
- 50–65: thumbnails and background images
Common size targets
Job portals and exam forms often cap photos at 50–200 KB. Set a max width of around 600–800 pixels, choose JPG and lower the quality until the new size drops under the limit. For a blog, aim for under 200 KB per image; for a hero banner, under 400 KB is a good target.
Watch out for banding in smooth gradients like sunsets; that’s the first sign you’ve gone too low. Our guide on compressing images without losing quality covers this in more depth.
Need a different format rather than a smaller file? The image converter handles PNG, WebP, AVIF and more. Everything on PixViral’s photo tools runs in your browser, so nothing you compress is ever uploaded.
Image Compressor FAQ
Are my images uploaded to a server?
No. Compression happens inside your browser, on your own device. Your photos are never sent anywhere, so it’s safe for personal and work files.
What quality setting should I choose?
Start at 75–80. Most photos look identical to the original at that level while shrinking by half or more. Go down to 60 for thumbnails, and stay at 85–90 for images with fine detail or text.
JPG or WebP — which is smaller?
WebP is usually 25–35% smaller than JPG at the same visual quality, and every modern browser supports it. Use JPG when you need maximum compatibility, for example email attachments or older software.
Why did my PNG get so much smaller?
PNG is lossless, so photos saved as PNG are often huge. Converting a photo to JPG or WebP at a sensible quality can cut it by 80–90%. Keep PNG only for graphics that need transparency.
What does the max width option do?
It scales the image down before compressing. A 4000-pixel photo shown on a blog at 1200 pixels wastes most of its weight, so setting a max width is often the biggest saving of all.
Can I compress several images at once?
The compressor handles one image at a time so you can judge the quality of each one properly before saving.
