Compress PNG Online

Reduce PNG file size for websites, forms, documents, and image uploads without installing software.

No signup Browser processing Mobile friendly

Upload your image Drag and drop your image here, or click to browse Choose File Supports JPG, PNG, WEBP up to your browser limit

PNG Compression Settings

Quality 80%

Smaller fileBetter quality

Keep original dimensions

Upload Upload your image

Edit We process your image

Download Download the finished image

Free browser-based PNG compressor

PixelXTrim helps you compress PNG images online using your browser. It is useful for transparent graphics, screenshots, interface images, icons, and website visuals that need a smaller file size.

Tool built by Noah Atlim, founder and maintainer of PixelXTrim.

How to use it

Upload your JPG, PNG, or WEBP image.
Choose the settings that match your goal.
Preview the result and download the finished file.

Best settings

Use 80% quality as a first test when your browser exports a compressed copy.
Keep original dimensions when the PNG already has the right width and height.
Resize oversized PNG screenshots before compression for the biggest file-size improvement.

Best for everyday image work

Choose the setting that matches where your image will be used.

Websites

Best for transparent website graphics

Compress PNG logos, icons, interface graphics, and transparent images before adding them to a page.

Screenshots

Best for smaller screenshots

Reduce large PNG screenshots before sending support notes, tutorials, reports, or documentation.

Uploads

Best for file-size limits

Try a compressed PNG copy when a school, job, business, or government form rejects a large image file.

What this PNG compressor does

This tool creates a smaller copy of a PNG image so it is easier to upload, send, or publish. PNG is popular because it can keep transparent backgrounds and sharp graphic edges, but that strength can also make PNG files large. A screenshot, logo, chart, or interface graphic may contain more data than a website, email, or upload form really needs. PixelXTrim gives you a simple place to upload the PNG, test a compressed copy, preview the output, and download the result.

How to compress PNG images online

Upload your PNG file, keep the default setting for the first test, and click the compress button. When the output appears, compare the new file size with the original and look closely at transparent edges, text, logos, and flat color areas. If the file is still too large, resize the image dimensions first or try a modern WEBP copy when the destination supports it. Always keep the original PNG until you confirm the compressed version works in the final place.

Three practical PNG use cases

Website owners use PNG compression for icons, transparent product labels, screenshots, and user interface graphics. Teachers, students, and support teams compress PNG screenshots before adding them to slides, tickets, and documents. Small businesses compress transparent logos or product graphics before uploading them to storefronts, email builders, and landing pages. In all three cases, the goal is a practical file that still looks clean at the size where people will see it.

PNG versus JPG and WEBP

PNG is best when transparency, crisp edges, or lossless-style graphics matter. JPG is usually better for normal photos because it creates much smaller files, but it cannot keep transparent backgrounds. WEBP can be a strong modern option because it supports transparency and often creates smaller website images. If your PNG is a photo with no transparency, converting to JPG or WEBP may help more than PNG compression alone. If your PNG is a logo or graphic, keep checking edges and transparency before switching formats.

About the browser compression method

PixelXTrim relies on browser image features whenever possible. The file can be decoded locally, drawn to a canvas, and exported as a new image without requiring an account or permanent server upload. This privacy-first workflow is useful for everyday images, but output size depends on the original file, dimensions, colors, transparency, browser encoder, and whether the PNG was already optimized. That is why the safest workflow is to test a copy, compare the preview, and keep the original file.

Fast Processing

All tools work instantly in your browser with minimal page weight.

100% Secure

Your images are processed locally whenever possible and are not stored.

Works Everywhere

Use PixelXTrim on desktop, tablet, or mobile without installing software.

Totally Free

Free online image tools with no registration and no hidden charges.

Frequently Asked Questions

Is this PNG compressor free?

Yes. PixelXTrim is free to use and does not require registration for the PNG compressor.

Will PNG compression keep transparency?

PNG supports transparency, and PixelXTrim keeps transparent areas when the browser exports the result as PNG. Always preview the output before replacing an important original.

Why did my PNG not get much smaller?

Some PNG files are already optimized. Screenshots and graphics may shrink more after resizing, while highly optimized PNG files may show only a small change.

Are my PNG images uploaded to a server?

PixelXTrim processes images in your browser whenever possible and does not store your files on our server.

What is the best way to reduce PNG size?

Start by resizing oversized images, then compress a copy and compare the result. For photos, JPG or WEBP may create a smaller file than PNG.