Free PNG Resizer

Resize. Any Size. Free.

Social media, web and icon presets - or enter any custom dimensions. Batch resize up to 20 PNG files at once. Transparency preserved, no signup needed.

20+ presets
20 files / batch
100% free forever

Drop your PNG files here to resize

or click to select files from your computer

Up to 20 PNG files  |  max 20 MB each  |  ZIP download for 3+ files

Original size - Fit - Quality: High (85%)

How PNG Resizing Works

Resizing uses high-quality Lanczos resampling - the same algorithm used in professional image editors. It preserves sharp edges and smooth gradients far better than simpler methods. Full alpha transparency is preserved at every size.

After resizing, use our PNG Compressor to further reduce file size, or the PNG to 8-Bit converter for logos and icons with limited colors.

Fit vs Fill vs Stretch

Fit scales the image to fit within your target dimensions while preserving the original aspect ratio - no cropping, no distortion. Best for general-purpose resizing where proportions matter.

Fill scales and center-crops to fill the exact dimensions. Perfect for social media where you need a precise canvas. Stretch forces the exact dimensions without cropping - useful when pixel-perfect size matters more than proportions.

How to Resize PNG Files Online

  1. Click "Customize Settings" and pick a preset from the Social Media or Web and Icons rows - or type any custom width and height manually.
  2. Choose a resize mode: Fit keeps proportions, Fill crops to exact size, Stretch forces exact dimensions.
  3. Set output quality - High (85%) is recommended for most resizing. Lower values reduce file size further.
  4. Drop up to 20 PNG files into the upload area. Settings are snapshotted at upload time. Download individually or use the ZIP button for 3+ files.

Social Media Size Guide

Every platform re-compresses images that do not match its required dimensions. Using the correct size yourself first gives you full control over quality. Instagram posts are 1080x1080 px, Stories are 1080x1920 px. Twitter/X posts work best at 1200x675 px. Facebook cover photos are 820x312 px. Open Graph link previews should be 1200x630 px. LinkedIn covers are 1584x396 px.

For icon work, 256x256 is the standard large icon size, 64x64 for system icons, and 32x32 or 16x16 for favicons. Use our PNG to ICO converter to package multiple icon sizes into a single .ico file.

Frequently Asked Questions

Yes. The output is always a PNG file, so alpha transparency is fully preserved at every size. This includes transparent backgrounds, drop shadows, and semi-transparent areas. Use our PNG to ICO converter if you need transparent favicons afterwards.

Fit scales the image proportionally to fit within the target dimensions - no cropping, no distortion. Fill scales the image to completely cover the target dimensions and center-crops the excess. Stretch forces the image to the exact dimensions without cropping, which may distort proportions.

Yes. Enter dimensions larger than the original. The tool uses Lanczos resampling which produces smoother results than simpler upscaling methods. However, upscaling always introduces some softness - start with the highest resolution original available for best results.

Making an image smaller in dimensions almost always reduces file size. Making it larger increases file size. After resizing, use our PNG Compressor to further reduce the file size without additional visual quality loss.

Quality controls the PNG compression applied after resizing. Higher values preserve more detail at the cost of larger file size. Lower values compress more aggressively. High (85%) is recommended - it produces excellent visual quality at significantly reduced file size compared to Max.

Yes. Drop up to 20 PNG files at once. All files use the settings active at upload time. When 3 or more files are done, a Download ZIP button appears so you can grab them all in one click.