Image Compressor
Shrink your image's file size with an adjustable quality slider and download the result in seconds — free, private, and processed entirely in your browser.
or drop an image here · From Device
About the Image Compressor
Our free online image compressor shrinks the file size of any PNG, JPG, or WEBP image while giving you full control over the quality-to-size trade-off. Drag the quality slider and watch the estimated output size update in real time, so you can find the sweet spot between a small file and a sharp image.
Unlike most online tools, compression happens entirely inside your browser using the HTML5 Canvas API — your image is never uploaded to a server. That means it's fast, works without an internet round-trip, and keeps your files completely private and secure.
How to Compress an Image
Step 1
Upload your image
Drag and drop a PNG, JPG, or WEBP file, or choose one from your device.
Step 2
Adjust the quality slider
Drag the quality slider to your desired balance of file size and image quality.
Step 3
Preview and download
Check the estimated size, then click "Download Compressed Image" to save it instantly.
Frequently Asked Questions
Is my data safe?
Yes. Compression happens entirely in your browser using the HTML5 Canvas API — your image is never uploaded to a server, so it stays completely private.
What image formats are supported?
You can upload most common image formats and export the compressed result as PNG, JPEG, or WEBP.
Will compressing reduce my image quality?
Lowering the quality slider trades some visual fidelity for a smaller file size. Values around 70-85% usually give a good balance, with little visible difference from the original.
What's the best quality setting?
For photos shared online, 70-85% is a good starting point. Go lower (40-60%) for maximum size savings when quality matters less, or stay at 90-100% when you need near-lossless results.
Does it cost money?
No. The image compressor is 100% free to use, with no registration or account required.