Image Compressor
Upload an image, adjust the quality slider, and download the compressed result: it all stays in your browser and nothing is ever uploaded.
Drop your image here
JPEG, PNG, or WebP
Max 20 MB
Original
Compressed
Tips for best results
- For photos: use JPEG at 70–85% quality; the difference is barely visible and files come out 60–80% smaller.
- For web use: WebP gives the best compression and is supported by all modern browsers.
- If output is larger than the original, the source is already well-optimised. Try lowering the quality or switching to WebP.
How to compress an image
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1
Drop your JPEG, PNG, or WebP file onto the upload area, or click Choose Image to browse. Files up to 20 MB are supported.
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2
Drag the Quality slider to set your compression level: 70–85% is the sweet spot for photos, giving the smallest file size with no visible quality loss.
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3
Review the before/after preview and the exact kilobytes (KB) saved shown beneath each image. Switch to WebP output for even smaller files on modern browsers.
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4
Click Download Compressed Image to save the result. Your original pixel dimensions and resolution are unchanged; only the file size is reduced.
Privacy
Compressed using the Canvas API. Your images are never uploaded anywhere.
Formats
Supports JPEG, PNG and WebP input. Outputs as JPEG or WebP.
Export
Download compressed JPEG or WebP with adjustable quality from 1–100%.
Why use GenerateQuick's Image Compressor?
Our free Image Compressor uses your browser's built-in Canvas API to reduce JPEG, PNG, and WebP file sizes without sacrificing visible quality. Unlike other online compression tools, your photos are processed entirely on-device; nothing is uploaded to a server, and your images stay completely private. Adjust quality from 1–100%, choose between JPEG and WebP output, and see the exact kilobytes saved in real time.
Smaller image files are essential for fast website page loads, lower hosting bandwidth, quicker social media uploads, and smaller email attachments. Whether you're optimising product photos for an e-commerce site, compressing screenshots for a presentation, or reducing file sizes before sharing on social media, our tool gives you precise control over output quality and format in seconds, with no sign-up required.
Frequently Asked Questions
Are my images uploaded to a server?
No. All compression is done locally using the browser's built-in Canvas API. Your images are processed entirely on your device and are never transmitted to any server.
What is the maximum file size I can compress?
There is a 20 MB soft limit per image. Files larger than that will show an alert before processing. In practice, most device browsers can handle images well beyond this limit, but 20 MB covers the vast majority of everyday photos and graphics.