Upload a JPEG, PNG, or WebP image and compress it instantly using your browser's built-in canvas engine. Adjust the quality slider to find the right balance between file size and visual quality, optionally resize to a maximum width, and download the result. Your image never leaves your device.
How to Use
- Drop an image onto the upload zone, or click Choose Image to browse your files — JPEG, PNG, and WebP are supported
- The compressed preview appears immediately alongside the original
- Adjust the Quality slider — lower values produce smaller files with some visual loss; higher values preserve quality at the cost of file size
- Choose an Output Format — JPEG or WebP for photos, PNG for screenshots and graphics with transparency
- Optionally set a Resize Width to scale the image down — useful for reducing oversized photos before uploading to a website or email
- Check the size saving percentage in the stats panel
- Click Download Compressed Image to save the result
Quality Guide
| Quality | Typical Size Reduction | Best For |
|---|---|---|
| 90–100% | 10–30% | Print-ready assets, portfolio images |
| 70–85% | 30–60% | Website hero images, product photos |
| 50–70% | 50–75% | Thumbnails, social media previews |
| 20–50% | 70–90% | Small previews, email inline images |
For most web use cases, 75–85% quality gives an excellent visual result at roughly half the original file size. Drop below 60% only for non-critical images like thumbnails or background textures where detail is not important.
Choosing the Right Format
JPEG is the best choice for photographs and images with smooth colour gradients. It uses lossy compression that removes imperceptible detail. It does not support transparency.
WebP is a modern format that typically produces files 25–35% smaller than JPEG at equivalent quality. It supports both transparency and animation. Use WebP for new web projects — it is supported by all modern browsers.
PNG uses lossless compression, meaning no quality is lost but file sizes are larger. Use PNG for screenshots, logos, icons, and any image that contains text or needs a transparent background. The quality slider has no effect on PNG output.
Common Use Cases
- Web performance — Compress hero images, product photos, and blog images before uploading to your CMS. Large images are one of the top causes of slow page load times and poor Core Web Vitals scores
- Email campaigns — Email clients have inconsistent image rendering and many users have image loading disabled. Compressed images load faster when images are enabled and reduce the chance of hitting size limits
- Social media uploads — Platforms like Instagram and LinkedIn re-compress images on upload, often with poor results. Pre-compressing to 80% quality in WebP before uploading gives more control over the final appearance
- File sharing — Reduce an image below a file size limit for sending via WhatsApp, email attachment, or a file upload form with size restrictions
- Storage — Batch compress a folder of photos before archiving to save cloud storage space