Upload your PNG image
Choose the PNG file you want to make smaller. The tool prepares your image in a browser-based workspace so you can start compression quickly.
Compress PNG Online
Reduce PNG file size without uploading your image. This build validates PNG input, detects transparency locally, re-encodes PNG in the browser, and keeps the original PNG when re-encode is not smaller.
Private processingImages stay on your device
PNG validationReal PNG files only
Clean PNG outputNo watermark, dimensions preserved
—original size
—dimensions
LosslessPNG mode
Detectingtransparency
Readystatus
Original image
PNG
Selected PNG
Size
—
Dimensions
—
Format
PNG
Transparency
—
Original dimensions are preserved. PNG compression uses lossless browser-local re-encode with a no-upsize guard.
Export PNG
Preparing compressed PNG
The native PNG re-encode engine is active and runs locally in your browser.
PNG export ready
—Original size
—Mode
Working…Output size
—Dimensions
Download will be available when the PNG re-encode reaches 100%.
Preparing download…
Original
—
before compression
Output
—
PNG output size
Saved
—
smaller PNG
Target result
Target result
Target size—
Output size—
Difference—
Status—
Target result details will appear here.
Engine—
Dimensions—
Target result—
FormatVerified PNG
ProcessingBrowser local
Saved as verified PNG
Compressed result
PNG
Compressed PNG ready
—Original
—Output
—Saved
—Mode used
—Result dimensions
Your compressed PNG appears here after processing.
Download preview PNGCompress PNG Online
Compress PNG is a free online tool that helps you reduce PNG file size while keeping the result useful for websites, uploads, screenshots, graphics, icons, documents, and sharing. Upload your PNG image, preview the result, adjust compression when available, and export a smaller PNG. The compression process runs locally in your browser, so your files stay on your device.
Reduce PNG File Size with a Private Online Tool
Use this PNG compressor when your screenshot, logo, transparent image, web graphic, product image, or document image is too large for a website, email, form upload, blog post, or social media post.
How to Compress PNG Files
Reducing PNG image size should be simple. This tool lets you load a PNG, compress it in your browser, and download a smaller version without installing extra software.
Compress and preview
Reduce file size using browser-based compression. Depending on the options, you may be able to optimize metadata, colors, dimensions, or output settings before exporting.
Download the smaller PNG
Export a new compressed PNG that is easier to upload, share, store, or use on a website. Your original file is not changed.
Private PNG Compression in Your Browser
This browser-based PNG compressor works locally on your device. Your image is not uploaded, stored, or processed on our server. It is a privacy-friendly way to compress PNG online when working with screenshots, transparent graphics, website assets, product images, logos, icons, forms, or document files.
No upload
No signup
No watermark
Browser-based
Image preview
Files stay on your device
Why Use This PNG Compressor?
Large PNG files can slow down pages, fail upload limits, and make images harder to send. This tool helps reduce PNG file size so your images are easier to publish, upload, email, and share.
Make PNG files easier to upload
Compress large screenshots, logos, icons, and graphics so they are more likely to fit website, CMS, email, form, and social media upload limits.
Keep transparency support
PNG is often used for transparent graphics. Compress PNG images while keeping them useful for logos, overlays, icons, and web assets.
Improve web performance
Smaller PNG files can reduce page weight and help visual content load more smoothly for visitors.
Useful for Screenshots, Logos, and Web Graphics
PNG compression is helpful when a file needs to be smaller before it is added to a page, submitted to a form, sent to someone, or uploaded to another platform.
Screenshots
Reduce PNG screenshots before adding them to tutorials, documentation, support messages, blog posts, or product pages.
Logos and icons
Compress PNG logos, icons, badges, transparent graphics, and interface assets before using them online.
Forms and attachments
Make PNG files smaller before using them in email, chat, online forms, document submissions, or application uploads.
Compress PNG Before Uploading or Sharing
Compress PNG online when you need to reduce file size for screenshots, logos, transparent images, icons, website graphics, upload forms, product pages, blog posts, or document attachments. This tool helps you create a smaller PNG while keeping your file private in your browser.
Use this compress PNG tool to preview your image, reduce file size, and export a new PNG that is easier to upload, publish, share, email, or store.
Compress PNG FAQ
Answers to common questions about using this free online PNG compressor.
What does this Compress PNG tool do?
It helps reduce PNG file size so screenshots, transparent graphics, logos, icons, and web images are easier to upload, send, publish, or store.
Are my PNG files uploaded to your server?
No. The tool runs locally in your browser. Your PNG file stays on your device and is not uploaded to our server.
Does PNG support transparency?
Yes. PNG is commonly used for transparent images such as logos, icons, overlays, and web graphics.
Will compressing a PNG reduce quality?
Compression can reduce file size by changing optimization settings. Depending on the method used, the result may keep visual quality very close or may reduce details if stronger compression is used.
Can I use this for website images?
Yes. This tool is useful for website graphics, screenshots, logos, icons, interface images, landing page visuals, and documentation images.
Does this tool change my original PNG?
No. Your original PNG remains unchanged. The tool creates a new compressed PNG output.
Is this online PNG compressor free?
Yes. You can use this browser-based PNG compressor for free without signup or watermark.
Why can large PNG files take longer to process?
Large PNG images can take longer because preview and export steps run inside your browser. Speed depends on file size, image dimensions, browser performance, and your device.
Learn More About Image Formats
Images can use different formats for photos, graphics, transparency, and web publishing. You can learn more from MDN’s image file type guide .
Related Image Tools
Continue working with your images using other BintoroSoft image tools.
Compress Image
Reduce general image file size with browser-based compression.
Open tool →Compress JPG
Reduce JPG and JPEG file size directly in your browser.
Open tool →Lossless Image Compression
Optimize image files while preserving visual quality.
Open tool →Optimize Image for Web
Prepare images for websites with browser-based optimization.
Open tool →Ready to Compress PNG Files?
Use BintoroSoft to reduce PNG file size and export a smaller image directly in your browser.
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