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Compress JPEG Images

Reduce JPEG file sizes without visible quality loss. 100% in your browser — your images never leave your device.

Free · No account · No uploads
Upload files or drag and drop

JPEG, PNG, WebP, HEIC

Max 10 images · 5MB each

Format

One file per format

Quality

Best quality

Smaller
Best quality80%

Resize for

Optional

JPEG is the standard format for photos on the web. It compresses photographs well, but most JPEGs straight from a camera or phone are saved at a higher quality than a web page needs — wasting bandwidth and slowing down page loads.

Pikkx uses jSquash WebAssembly codec to compress JPEGs directly in your browser. This means your images are processed on your device, never uploaded to any server. The compression algorithm targets redundant data that the human eye can't perceive, reducing file sizes by 40-80% while maintaining visual quality.

Smaller JPEG files mean faster page loads, better Core Web Vitals scores, and improved SEO rankings. Google uses Largest Contentful Paint (LCP) as a ranking factor, and unoptimized images are the number one cause of slow LCP.

Frequently Asked Questions

How much can I compress a JPEG?+
It depends on the photo and on how it was saved. Files exported at maximum quality shrink the most; a JPEG that was already compressed may barely change, and in that case Pikkx keeps the original instead of giving you a bigger file. The size before and after is shown for every image, so you see the real result before downloading.
Does compressing a JPEG reduce quality?+
JPEG uses lossy compression, so there is a slight quality reduction. However, at quality 75-85, the difference is virtually invisible to the human eye. Pikkx lets you adjust the quality slider to find the perfect balance.
Are my images uploaded to a server?+
No. Pikkx processes everything in your browser using WebAssembly. Your images never leave your device. You can verify this by disconnecting from the internet — the tool still works.
How many JPEGs can I compress at once?+
You can compress up to 10 JPEG images per batch for free. There's no limit on how many batches you can run.

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