Image Compressor
Compress and convert JPG, PNG, and WebP images directly in your browser. Adjust quality, switch output formats, and compare originals side by side with a slider. Open the full-size inspector to zoom and pan for pixel-level comparison. No upload to servers — your images stay private.
Drop an image here or click to upload
JPG, PNG, WebP — max 20 MB
How to use
- 1 Upload an image (JPG, PNG, or WebP) by clicking or dragging into the upload area.
- 2 Choose the output format: Same as original, JPEG, PNG, or WebP — lossless mode activates automatically for PNG output.
- 3 Adjust the quality slider — the label (Minimum → Low → Medium → High → Maximum) guides the visual trade-off.
- 4 Drag the divider left and right on the before/after slider to compare specific areas of the image.
- 5 Click "Inspect at 100%" to open a full-size side-by-side view where you can zoom and scroll each image.
- 6 Check the savings bar and file details below, then click Download to save the compressed image.
Key features
- Canvas-based compression — images never leave your browser
- Adjustable quality slider with labels (Minimum → Low → Medium → High → Maximum)
- Output format selector: Same, JPEG, PNG, or WebP — auto-detects lossless mode for PNG
- Visual savings bar showing exactly how much space you saved
- Side-by-side comparison with file size, dimensions, and format at a glance
What is an Image Compressor?
An Image Compressor reduces the file size of an image by lowering its quality or changing its format, while keeping its pixel dimensions intact. It is one of the most essential tools for web developers, designers, and content creators who need to balance visual quality against page load speed.
Compressing images before uploading them to a website can reduce page weight by 50–80 %, dramatically improving Largest Contentful Paint (LCP) and overall Core Web Vitals. Google's own research shows that pages meeting the recommended image size thresholds see up to 25 % higher user engagement.
Common Use Cases
Improving website performance
Compress hero images and product photos before uploading to your CMS — smaller files mean faster LCP and better Core Web Vitals scores.
Sending images via email or chat
Compress a 5 MB photo down to 200 KB before attaching it to an email or sending it in a messaging app.
E-commerce product images
Online stores with hundreds of product photos can cut bandwidth costs and improve page speed by compressing images in bulk.
Social media and portfolios
Photographers and designers can compress high-resolution work for portfolio sites without sacrificing visible quality.
Converting between formats
Use the output format selector to batch-convert images to WebP for modern browsers or back to JPEG for legacy compatibility.
JPEG vs PNG vs WebP
| Format | Compression | Transparency | Best for |
|---|---|---|---|
| JPEG | Lossy — adjustable quality | ✗ No | Photos, complex gradients, realistic images |
| PNG | Lossless — no quality loss | ✓ Yes | Screenshots, logos, UI elements, images with text |
| WebP | Lossy or lossless | ✓ Yes | Websites — 25–35 % smaller than JPEG at equal quality |