Reduce JPG, PNG, and WebP file sizes directly in your browser. Your images are never sent to our servers.
or choose a file from your device
PNG, JPEG, or WebP · Up to 40 MBImage compression reduces file weight for websites, emails, and online forms while preserving the visual clarity you need. ImageDock executes the entire compression workflow locally in your browser using HTML5 Canvas—your photos are never uploaded or stored on remote servers.
Use it before uploading photos to websites, sending image-heavy email attachments, submitting online job/visa applications, or publishing e-commerce catalogs. Use the quality slider to find the right balance between file size and sharpness.
Inspect faces, typography, fine line art, and high-contrast edges after compression. If an image is still too heavy at 70% quality, reduce its pixel dimensions with our Image Resizer before compressing further.
No. ImageDock compresses your images locally in your browser using client-side canvas rendering. Your image never leaves your device.
Upload your photo and adjust the quality slider while checking the output size readout. If the file is high resolution (e.g. 4000px wide), downscale the dimensions in the Image Resizer first, then compress.
No. ImageDock generates a new, compressed file download. Your original file remains completely untouched on your device.
ImageDock supports PNG, JPEG, and WebP images up to 40 MB.
