Compress JPG, PNG, and WebP images right in your browser. Reduce file sizes, compare results, and download your images.
Step 1: Add images
Select up to 10 JPG, PNG, or WebP files
Step 2: Adjust compression
Pick quality level or target file size
Step 3: Compress & download
Compare results and save individually or as ZIP
Or browse your device to get started.
JPG, PNG, WebP · Up to 10 images
Practical guide
How compression reduces file sizes, when to choose lossy or lossless settings, and which format fits your workflow.
Image files store millions of color values plus optional metadata such as camera settings and color profiles. Compression encodes those pixel patterns more compactly so pages load faster, emails send cleanly, and storage space goes further — all while keeping the same pixel dimensions.
Lossy compression (used by JPEG, WebP, and optional PNG palette reduction) selectively simplifies subtle color variations that the human eye barely notices, achieving much smaller files. Lossless compression preserves every pixel exactly as-is by stripping unneeded metadata and repacking data streams, resulting in modest but bit-exact savings.
Pushing quality settings very low (or setting a tight KB target on a high-resolution photo) introduces softness or block artifacts around sharp edges and gradients. Conversely, if an image was already heavily optimized by another app, re-encoding it may not reduce its size further — in that case, Pockenta automatically keeps your smaller original file.
Image Tools suite
Change image dimensions for websites, social media, and more.
Convert images between JPG, PNG, WebP, AVIF, BMP, HEIC, TIFF, and more.
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