Image Compressor
Compress JPEG, PNG and WebP images by up to 80% without losing quality. Bulk compression, resize, and format conversion — all in your browser.
Drag & drop images here
or browse files — JPEG, PNG, WebP up to 10 MB each (max 20)
Frequently Asked Questions
Why Compress Images?
Images account for nearly 50% of the average web page's total weight. Optimising them is one of the easiest ways to improve your website's performance.
2–4s
Faster Page Loads
faster load times on mobile when images are properly compressed
53%
Better SEO Rankings
of mobile users leave a site that takes over 3 seconds to load
40–80%
Lower Bandwidth
reduction in image file sizes without visible quality loss
LCP
Better Core Web Vitals
scores improve significantly with optimised image delivery
Image Formats Explained
Each format has strengths and trade-offs. Choosing the right one can dramatically reduce file sizes.
JPEG
Best for
Photographs and complex images with gradients
Compression
Lossy — discards data the eye cannot see
60–85% quality for web
PNG
Best for
Graphics, logos, screenshots with text
Compression
Lossless — preserves every pixel
Best for images needing transparency
WebP
Best for
Everything — the modern all-rounder
Compression
Both lossy and lossless modes
25–35% smaller than JPEG at same quality
How to Choose the Right Compression Settings
Different use cases call for different settings. Here's a quick guide.
| Use Case | Format | Quality | Typical Savings |
|---|---|---|---|
| Website hero images | WebP | 75–85 | 50–70% |
| Product photos | WebP / JPEG | 80–90 | 40–60% |
| Blog post images | WebP | 70–80 | 55–75% |
| Email attachments | JPEG | 65–75 | 60–80% |
| Social media posts | JPEG | 80–85 | 40–55% |
| Logos & icons | PNG / WebP | 90–100 | 10–30% |
| Thumbnails | WebP | 60–70 | 70–85% |
Image Compression for SEO
Page speed is a confirmed Google ranking factor. Images are typically the largest assets on any web page, and unoptimised images are the number one cause of slow Largest Contentful Paint (LCP) scores — one of Google's three Core Web Vitals metrics.
A study by Google found that as page load time goes from 1 second to 3 seconds, the probability of bounce increases by 32%. At 5 seconds, it jumps to 90%. Compressing your images is one of the fastest wins you can achieve.
Quick wins for image SEO:
- Use WebP format for all web images — it is supported by 97%+ of browsers
- Compress hero images to under 200 KB for fast LCP scores
- Serve responsive images with srcset for different screen sizes
- Add descriptive alt text to every image for accessibility and SEO
- Use lazy loading for images below the fold
- Set explicit width and height attributes to prevent layout shifts (CLS)
Want to see how your images affect your page speed? Run a free Website Speed Test to check your Core Web Vitals scores.
Stop Compressing Images Manually
Hand On Web builds websites with automated image optimisation baked in. Every image is compressed, resized, and converted to WebP on upload — so your site stays fast without the manual work.