NoInstall.Tools

PNG Compressor

Shrink PNG files losslessly in seconds — no quality loss, right in your browser.

About PNG Compressor

PNG Compressor reduces PNG file size without changing a single pixel. Unlike JPG, compression here is always lossless — the tool re-optimizes how the image data is encoded, stripping redundant metadata and choosing tighter compression parameters, so what comes out looks pixel-for-pixel identical to what went in. That makes it ideal for screenshots, UI mockups, icons and anything with transparency or sharp edges, where even a tiny quality loss would be obvious. There's no quality slider to worry about — just drop your files and get smaller PNGs back. Everything happens locally in your browser, so your files are never uploaded anywhere.

How to compress a PNG

  1. 1

    Add your PNGs

    Drag and drop your PNG files, or click to browse. You can add several at once.

  2. 2

    Compress

    Click Compress. Optimization is fully lossless, so there's no setting to adjust.

  3. 3

    Download

    Save each file individually, or download every compressed file at once as a .zip.

Why use NoInstallTools

Private by design

Your files are processed locally and never leave your device.

No install, no signup

Works straight in your browser — no software, no account, no email.

Pixel-perfect, guaranteed

PNG compression here never touches a single pixel — only the file size shrinks.

Free, always

Compress as many files as you like, with no limits or hidden fees.

Related tools

JPG Compressor

Shrink JPG and JPEG photos in seconds, right in your browser — no upload, no signup.

WebP Compressor

Shrink WebP images in seconds, right in your browser — no upload, no signup.

GIF Compressor

Shrink GIF files losslessly in seconds — animations stay intact, right in your browser.

SVG Compressor

Minify SVG files losslessly in seconds — right in your browser.

Image Compressor

Compress JPG, PNG, WebP, GIF and SVG in seconds — right in your browser.

FAQ

Will this reduce image quality?
No. PNG compression is fully lossless here — the image data never changes, only the file size shrinks.
Why is my PNG still fairly large after compressing?
Some PNGs — especially ones already exported by design tools — are close to optimal already. Lossless compression can only remove genuine redundancy; for a much smaller file at the cost of some quality, try our WebP or JPG compressor instead.
Are my files uploaded anywhere?
No. Compression runs entirely in your browser — your files never leave your device.
Is there a file size limit?
Each file can be up to 25MB, and up to 20 files per batch, to keep things reliable on mobile browsers.