EasyPNG

Compress, resize, and convert PNG, JPEG & WebP images. 100% private, nothing ever leaves your device.

GitHub Action: amanghuman/easypng
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Settings

Advanced options

Format Comparison Matrix

Choose the right format for your project. EasyPNG allows you to dynamically convert between these options during compression.

Format Best Used For Transparency Compression Web Support
WebP Web graphics, logos, photos Yes (Alpha) Lossy & Lossless 100% Modern Browsers
PNG Logos, screenshots, text illustrations Yes (Alpha) Lossless (smaller colour palette) 100% Universal
JPEG High-detail photographs No Lossy 100% Universal

How EasyPNG Compares

Compare the limits. EasyPNG runs entirely inside your browser, stripping out server upload caps and paywalls found in typical cloud-based compression services.

Feature / Limit Typical Cloud Compressors EasyPNG
Max File Size 5 MB to 10 MB limit No Limits *
Max Image Count 20 images per batch Unlimited
Image Resizing ❌ Paid subscription only Included Free
Format Conversion ❌ None (web compression only) Included Free
Privacy Policy ❌ Uploads to remote servers 100% Local (No uploads)
Price Mode Subscription or pay-per-image 100% Free Forever

* Note: Because EasyPNG processes images client-side, it is not artificially capped by our servers. The maximum file size or queue capacity is limited only by your browser's allocated memory and device CPU capacity.

Need it in a build script or CI?

EasyPNG is also available as easypng, a Node command-line tool for scripted and automated compression, no browser required. Same mozjpeg, pngquant-style PNG quantization, libwebp, and libavif encoders under the hood.

npx easypng ./images --recursive
View on npm →

Frequently Asked Questions

Why should I compress my images for my website?

Images make up the bulk of a webpage's total weight. Compressing them speeds up your page load times, improves search engine rankings (SEO), reduces user bandwidth usage (especially on mobile), and lowers your web hosting egress costs.

What file formats does EasyPNG support for image compression?

EasyPNG supports PNG, JPEG (JPG), and WebP formats. You can preserve the original format of your files or dynamically convert them to WebP, PNG, or JPEG during the compression process.

What does EasyPNG do?

EasyPNG optimizes and shrinks your images using smart quantization and lossy compression. It also gives you full resolution scaling controls (resizing) and format conversions, running entirely inside your browser tab.

Why did you create EasyPNG?

We wanted a fast, completely free, and 100% private offline alternative to server-based utilities. EasyPNG does not require signups, API keys, or premium subscriptions. It just works instantly.

What is lossy compression?

Lossy compression reduces file sizes by selectively discarding visual data that the human eye cannot easily distinguish. EasyPNG uses this technique to map colors into palettes or adjust encoding patterns, dropping file sizes by up to 85% with negligible quality changes.

How does EasyPNG optimize PNG images without losing quality?

EasyPNG rebuilds a full-colour PNG using a smaller, carefully chosen set of colours (up to 256). Most graphics (logos, icons, screenshots, illustrations) use far fewer distinct colours than that, so the file gets dramatically smaller while looking virtually identical to the original. You can control how many colours are kept with the PNG Palette slider.

How does JPEG and WebP compression work?

For JPEG and WebP, EasyPNG re-saves your image at a lower quality level that you control with the Quality slider (e.g. 75%). It drops fine detail your eye is least likely to notice, which makes the file much lighter while keeping the picture looking sharp.

How does EasyPNG manage metadata?

When EasyPNG re-saves your image, hidden metadata (such as GPS location, camera model, and the date a photo was taken) is automatically removed. Your exported files come out clean and safe to share.

Why should I use EasyPNG to optimize my PNG files?

EasyPNG gives you the best of both worlds: high-ratio lossy palette compression to shrink files, combined with offline, private processing so your sensitive graphics are never uploaded or stored online.

Are the optimized images supported everywhere?

Yes. The PNG, JPEG, and WebP files EasyPNG creates are standard image files that open and display correctly in every modern web browser, mobile app, and operating system.

Can I compress my images for free?

Yes! EasyPNG is 100% free with no file limits, no ads, and no premium subscriptions.

How can I reduce the file size of my images with this tool?

Simply drag and drop your images into the workspace (or copy/paste them from your clipboard). Use the sliders in the settings panel to adjust compression quality and scale down resolutions if needed, then click "Process Images". You can download files individually or altogether in a single ZIP.

Should I convert my web images to WebP?

Yes! WebP is a next-generation image format that provides far superior compression algorithms than JPEG or PNG. Converting your web assets to WebP is one of the easiest ways to improve your website's performance and Google PageSpeed scores.

What do the presets do?

Presets are one-click starting points for common tasks: Web Fast, Web Quality, Email, and Print. Each one sets a sensible quality level, output format, and resize option for you. Pick the closest match, then fine-tune any individual setting afterwards.

Can I compress images to a specific file size?

Yes. Turn on Target File Size under Advanced options and enter a limit in KB, and EasyPNG automatically lowers the quality until each image fits. It's a best-effort target: a very small limit may not be reachable on a large, detailed photo without a noticeable drop in quality, and any image that's already under the limit is left as-is.

Can I resize and convert images at the same time?

Yes. Alongside compression you can scale images down (by percentage, a maximum width, or exact dimensions) and convert them to WebP, JPEG, or PNG, all in the same pass. You can even set a different output format for an individual image right on its card in the list.

Is the privacy of my images ensured?

Yes, completely. Unlike server-based image compressors that upload your files to their servers, EasyPNG operates 100% locally in your browser. Your images never leave your computer.

Can I run this tool completely offline?

Yes! Once loaded in a browser tab, EasyPNG is fully self-sufficient. It requires no network requests or external assets to process your images, meaning it continues to function perfectly even on an airplane or when disconnected from the internet.