Free Image Compressor Online
Reduce the file size of your JPG, PNG and WebP images right in your browser — no uploads, no signup, no watermarks. Drag and drop one or more pictures, choose a quality level, and download the compressed versions in seconds. Smaller images mean faster page loads, smaller email attachments and lower hosting costs, all while keeping the visual quality you need.
How to Compress an Image Online
Drop your JPG, PNG or WebP file into the upload area above (or click to browse). Use the Quality slider to set compression level — 75% is a great starting point. Add a Max Width to downscale large photos. Compressed images download automatically with one click per file.
Why Compress Images?
Large images are the single biggest cause of slow websites. A 4 MB photo from your phone delivers the same visual experience as a 200 KB compressed version on screen — but takes 20× longer to load. Google's Core Web Vitals score penalises slow pages, so image compression is one of the highest-ROI SEO improvements you can make.
- Faster page load: smaller files load in milliseconds instead of seconds.
- Better SEO rankings: Google rewards fast-loading pages.
- Lower hosting costs: less bandwidth = lower bills.
- Smaller email attachments: stay under inbox attachment limits.
- Faster uploads: to social media, e-commerce platforms and CMSes.
Recommended Quality Settings
| Use Case | Quality Setting | Expected Size Reduction |
|---|---|---|
| Web photos / hero images | 75–80% | 60–80% |
| Product images (e-commerce) | 80–85% | 50–70% |
| Thumbnails & previews | 65–75% | 70–85% |
| Images with text / logos | 85–90% | 40–60% |
| Email attachments | 70–75% | 65–80% |
Compress Images Without Losing Quality
The key is combining quality reduction with dimension scaling. Most screens display images at 1x–2x pixel density. A 5,000 px wide photo only needs to be 1,200–1,920 px for a full-width website banner. Set Max Width to 1920, quality to 80%, and you will typically cut file size by 85% with no perceivable difference on screen.
After compressing, use our Image to Base64 tool to embed small icons directly in your HTML or CSS — removing HTTP requests entirely.
Frequently Asked Questions
Are my images uploaded to a server?
No. The compressor uses your browser's Canvas API to re-encode images locally. Files never leave your device, keeping your photos completely private.
Which image formats are supported?
JPG/JPEG, PNG and WebP are accepted as input. Output is saved as JPEG, which gives the best compression ratios for photographs.
What quality setting should I use?
70–80% is the sweet spot for photos — the human eye cannot detect a difference from the original, yet file size drops 50–80%. For images with text or sharp lines, use 85–90%.
How do I reduce image size without losing quality?
Set quality to 80% and use Max Width to downscale to 1920 px. This combination typically cuts file size by 60–85% with no visible quality loss on modern screens.