Compress PNGs for Your Website

Design exports and UI assets arrive as heavy PNGs. Optimize them before deployment — lossless re-encoding keeps visual fidelity while trimming file size. All in your browser, with no upload.

Last updated: August 7, 2026

Why Choose Image Toolkit

Design-to-Web Ready

Optimize Figma/Sketch exports and asset libraries before they reach your repository.

Lossless for UI Assets

Icons, buttons and illustrations stay pixel-perfect with transparent backgrounds.

Faster Sites, Happier Users

Smaller assets mean quicker deploys, lighter pages and better scores.

How to Use

  1. 1

    Upload an image

    Click the upload area or drag & drop a JPG/PNG image onto the page.

  2. 2

    Choose compression quality

    High quality (near-lossless), Balanced (best for web), or Maximum compression (smallest size).

  3. 3

    Download the result

    Compare the file size and savings percentage, then download with one click.

A typical website ships dozens of PNG assets — illustrations, icons, logo variants — and each one carries export overhead. Compressing them as part of your build workflow cuts total page weight with zero design impact.

How to compress website PNGs

  1. Upload your exported PNG assets (one by one, or use Batch mode).
  2. Choose Balanced for lossless re-encoding.
  3. Download and commit the optimized files to your repository.

A quick real-world example

A Figma export of a hero illustration might be 1.2MB. After lossless re-encoding the same image is typically 700-900KB — and visually identical. Across 20 assets, that’s several MB shaved from your site.

Private by design

Your assets are processed locally and never uploaded — even unreleased designs stay confidential.

Frequently Asked Questions

Should I compress PNGs before or after export?

After export. Design tools export lossless PNGs with heavy metadata; re-encoding them strips that overhead without touching the design.

Which website assets benefit most?

Illustrations, UI components, logo variants and marketing images. Photos on your site are better served by JPEG compression.

Will my design's quality change?

No — lossless mode keeps every pixel identical. The savings come from removing redundant metadata and more efficient encoding.

Can I compress a whole asset batch?

Yes — use Batch mode on the tool page to compress up to 10 images at once, then download them all.

Is it safe for unpublished site assets?

Completely. Compression runs locally in your browser — assets are never uploaded anywhere.