Convurter
Image Tools

Compress PNG

Compress PNG files locally by re-encoding them in the browser.

Local PNG Image Tools

Waiting

Runs in your browser. Files do not leave your device.

Input

Compress images. Select images, run the tool locally, and download the finished files.

Drop images hereUp to 25MB each. .png, image/png

Details

How this works

Re-save a PNG

Choose a PNG and download a browser re-encoded copy.

Input 
diagram.png
Output 
diagram-compressed.png
Edge cases
  • PNG results may be larger if the original was already optimized.
  • Advanced quantization is not part of this browser-local version.
Accuracy
  • PNG transparency is preserved.
  • This is canvas re-encoding, not TinyPNG-style quantization.
Privacy
  • The PNG does not leave your device.

Guide

How to use Compress PNG

Step-by-step

  1. Choose or enter png in the workbench.
  2. Run the compression tool locally in your browser.
  3. Download the png result and review it before sharing or archiving.
  4. Use the related tools on this page for cleanup, validation, conversion, or the next step in the workflow.

Questions

Is Compress PNG free to use?

Yes. The public tool is free to use in your browser.

Are my files uploaded?

No. This tool runs locally in your browser, so selected files or pasted input are not uploaded to Convurter.

What should I check before using the png result?

PNG transparency is preserved. Review the final output before using it in production work.

What can I do after this?

Good next steps include PNG to WebP, Resize Image, and Remove Image Metadata.

Workflow fit

Use Compress PNG in the right place

If you are unsure, start from the image chooser and pick by destination: web, social, portal, PDF packet, batch ZIP, or inspection.

Best for

  • Image workflows where dimensions, format, transparency, metadata, compression, batch output, or social sizing affects the result.
  • Preparing web, portal, social, document, or asset-library images with browser-first processing.
  • A focused compress task where the expected output is png.

Before you start

  • This tool runs in the browser, so keep the tab open until the result is created and downloaded or copied.
  • Keep the highest-quality source image because repeated compression and conversion can compound artifacts.
  • Decide the destination first: web page, upload portal, social post, print handoff, PDF packet, or archive.
  • Check transparency, dimensions, and format before converting because JPG, PNG, WebP, AVIF, and PDF preserve different properties.
  • Check whether size reduction is more important than preserving every visual or structural detail.

Quality checks

  • Inspect the compressed result because smaller files can trade off detail, metadata, or structure.
  • Open the output image at its intended display size, not only as a tiny browser preview.
  • Verify dimensions, file size, transparency, and metadata before publishing or uploading.
  • For batch ZIP output, inspect a sample file before using the whole set.
  • Download and open the file output before leaving the page or deleting the source copy.

Common mistakes

  • Converting transparent artwork to JPG removes transparency because JPG has no alpha channel.
  • Upscaling a low-resolution source does not restore missing detail.
  • Optimizing images before deciding final dimensions often creates files that need to be regenerated.
  • Closing the tab before downloading or copying a browser-generated result.
  • Compressing multiple times instead of returning to the best available source and making one final output.

Verify or clean up

Use these when the output needs checking, cleanup, comparison, compression, or a final share-ready pass.

PNG to PDF

Next

Resize Image JPG, PNG, WebP