Image Resizer & Compressor
Resize and compress JPG, PNG, and WebP images online with live previews, format options, and private in-browser processing.
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🧊
PNG Compressor
Compress PNG images online with preview, quality options, format conversion, and private in-browser processing.
Compress PNG images in your browser
Upload a PNG, choose whether to keep PNG or export as WebP or JPG, preview the result, and download a lighter file without uploading to a server.
PNG focusedTransparency awareNo upload
Original PNG
Upload a PNG to preview the original file.
Compressed output
Your compressed preview will appear here after processing.
Original size
0 B
Output size
0 B
Size change
-
Percent change
-
What this PNG compressor does
This free PNG compressor helps reduce PNG file size directly in your browser. It is designed for screenshots, UI assets, transparent logos, exported graphics, illustrations, and web images that are too heavy for fast loading or upload limits.
Because PNG is a lossless format, the best compression result often comes from exporting the PNG as WebP while preserving transparency. If you need to stay in PNG, the tool still lets you re-export the image and compare the result, but the file-size reduction may be smaller than with WebP or JPG.
How PNG compression works
1
Read the PNG locally
The tool opens your PNG in the browser, preserves its dimensions, and prepares the pixels for export without sending the file to a server.
2
Choose the compression path
You can keep PNG for lossless output, export to WebP for stronger PNG compression, or switch to JPG if transparency is not needed.
3
Preview and compare
The browser renders a new file and shows the before-and-after sizes so you can decide whether the compression result is good enough to download.
Example PNG compression workflow
Input
- Format: PNG app screenshot
- Dimensions: 1440 × 960 px
- File size: 1.2 MB
- Goal: publish in product documentation without slowing the page down
Output
- Format: WebP
- Dimensions: 1440 × 960 px
- Quality: 80%
- Typical result: smaller file with good visual quality and preserved transparency where needed
This workflow is common for product screenshots, landing-page graphics, UI exports, transparent badges, documentation illustrations, and design handoff assets.
Related tools
Useful next steps for PNG optimization, conversion, and delivery workflows.
🖼️
PNG to WebP Converter
Convert PNG files to WebP when you want the strongest size reduction for websites and apps.
🖼️
PNG to JPG Converter
Flatten transparent PNG backgrounds into JPG when compatibility and smaller photo-style output matter more than alpha support.
📦
Image Compressor
Compress mixed image formats when you need one tool for JPG, PNG, and WebP workflows.
🗜️
Image Resizer & Compressor
Reduce both file size and pixel dimensions when your PNG assets are oversized as well as heavy.
🔐
Base64 Encoder / Decoder
Encode small optimized PNG or WebP assets into Base64 strings for quick embedding and testing.
🔗
URL Encoder / Decoder
Prepare compressed image URLs for query strings, forms, and sharing links.
FAQ
Can PNG files be compressed a lot without changing format?
Sometimes, but not always. PNG is lossless, so large reductions are less common than with WebP or JPG. If your goal is the smallest file, exporting the PNG as WebP usually works better.
Will this PNG compressor keep transparency?
Yes when you export as PNG or WebP. Transparency is removed only if you choose JPG, because JPG does not support alpha channels.
Does this tool resize my PNG?
No. This tool keeps the original pixel dimensions and focuses on file-size compression. Use the Image Resizer & Compressor tool if you also need to reduce width and height.
Is this PNG compressor private?
Yes. Compression runs locally in your browser, so your PNG image is not uploaded to a remote server by this tool.
Explore This Tool in Context
PNG Compressor is part of the Image Resize & Compression Tools collection. If you want a broader view of similar workflows, open the Image Resize & Compression Tools category page or browse all QuickTools categories.
Common next steps after this tool include Image Resizer & Compressor, Image Compressor and JPG Compressor.
More in Image Resize & Compression Tools
View category hub →Image Compressor
Compress JPG, PNG, and WebP images online with quality control, live previews, and private in-browser processing.
Open tool →
JPG Compressor
Compress JPG images online with preview, quality control, format conversion, and private in-browser processing.
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WebP Compressor
Compress WebP images online with preview, quality control, format conversion, and private in-browser processing.
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