Filenary

Compress PNG to Under 500KB

Drop your images and get versions under 500KB with the highest quality that fits — processed privately in your browser.

Drop your file here

or click to browse

Choose File

This file is processed in your browser and never uploaded to a server.

How to compress PNG to 500KB

  1. 1Drop one or more PNG files into the box above.
  2. 2Check the target size (500KB is pre-filled) and click Compress.
  3. 3Download the compressed files — each one shows its new size.

When do you need a file under 500KB?

500KB keeps photos sharp while meeting upload limits on forms, CMS platforms and email newsletters.

How It Works

The tool searches for the highest quality setting that still fits under 500KB. Only if even the lowest quality is too large does it gently reduce the pixel dimensions. PNG is lossless, so PNG files are made smaller by resizing only.

What is PNG?

PNG is a lossless image format that supports transparent backgrounds, making it ideal for logos, screenshots and graphics with text.

  • MIME type: image/png
  • Standardized: 1996 (ISO/IEC 15948)
  • Compression: lossless Deflate — no detail is ever discarded
  • Supports: 24-bit truecolor plus 8-bit alpha transparency
  • Photos in PNG are usually 5–10× the size of the same JPG

Frequently asked questions

Is compressing to 500KB free?
Yes — free, no sign-up and no watermark.
Are my files uploaded?
No. Compression runs in your browser, so your files stay on your device the whole time.
What if my file can't reach 500KB?
You'll get the smallest version that could be made and a notice that it's still above the target. You can then pick a larger target or trim the file first.
Can I choose a different size?
Yes. 500KB is only the default — type any target size before clicking Compress.

Other target sizes

Compress to exact size

Add this tool to your website

Copy the code below and paste it into any page. It's free, needs no sign-up, and files are processed in your visitors' own browsers.