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Compress JPEG Images

Reduce JPEG file sizes by up to 80% 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 most widely used image format on the web, powering over 70% of all web images. While it offers good compression for photographs, most JPEGs are saved at higher quality than necessary — 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?+
Typical JPEG compression with Pikkx reduces file sizes by 40-80%, depending on image content and quality setting. Photos with lots of detail compress less than simpler graphics.
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.