FREE IMAGE TOOL
Compress PNG Images Online — Free, No Upload
Reduce PNG image dimensions and file size with a browser-based workflow.
- 100% in browser
- No upload
- No signup
- No watermark
LOCAL BY DESIGN
Compress PNG, without the upload step
PNG is lossless and supports transparency, making it useful for interface graphics, diagrams, and logos. Photographs saved as PNG can be much larger than an equivalent JPEG or WebP.
This browser encoder redraws and writes PNG pixels; it does not run oxipng's specialized lossless optimizer. If exact source data must remain unchanged, use a dedicated lossless PNG optimizer and verify its output.
This compress png workflow creates a separate processed copy in your browser. The image is not uploaded to an ImageKit server, and the original file is not changed. Choose a source your browser can decode, check the preview and measured file size, and save the result only when it fits your destination's requirements.
Files are decoded and processed on your device. They are not uploaded to an ImageKit server, and the original files are never overwritten.
How it works
- 01
Select the image or batch of images from your device.
- 02
Review the settings for compress png and process locally.
- 03
Inspect the result, then download the file or a ZIP of the batch.
Frequently asked questions
Is PNG compression always lossless?
This tool exports PNG pixels without JPEG-style quality loss, but it redraws the image and does not guarantee a byte-identical or fully optimized PNG.
Are my images uploaded?
Your image stays in this browser tab. Processing runs locally on your device; the image file is not sent to an ImageKit server.
Does this overwrite my original?
No. Processing creates a separate browser-generated file for download.