PNGGauntlet

PNGGauntlet

PNGGauntlet is a free open source image optimizer that can losslessly compress PNG files. It aims to find the optimal compression for PNG images while maintaining compatibility.
PNGGauntlet image
png compression optimizer lossless

PNGGauntlet: Free Open Source Image Optimizer

A free open source image optimizer that losslessly compresses PNG files, aiming to find the optimal compression while maintaining compatibility

What is PNGGauntlet?

PNGGauntlet is a free and open source PNG image file optimizer. It can losslessly optimize and compress PNG images to reduce their file size without losing any quality or information.

Unlike other PNG optimizers, PNGGauntlet tries multiple compression methods and filters to find the smallest possible file size for each image. It tests every combination of PNG encoding options to determine the most efficient compression.

Key features:

  • Losslessly reduces PNG file sizes
  • No quality or data loss
  • Tries multiple compression methods
  • Open source (Mozilla Public License 2.0)
  • Command line interface
  • Cross-platform (Windows, Mac, Linux)

PNGGauntlet is useful for webmasters, designers, and developers who need to optimize PNG images for use online without losing quality. Smaller PNG files means faster load times for websites and applications. It can provide better PNG compression than most image editors.

The only downside is that optimizing images with PNGGauntlet can be slow because of all the compression testing it does. So it's best used for optimizing PNGs before uploading to the web, not optimizing images on the fly.

PNGGauntlet Features

Features

  1. Losslessly compresses PNG files
  2. Open source and free to use
  3. Works on Linux, Mac and Windows
  4. Command line interface
  5. Supports various compression algorithms like zopfli, pngcrush, etc
  6. Can optimize an entire folder of images at once

Pricing

  • Free
  • Open Source

Pros

Greatly reduces PNG file sizes without losing quality

Free and open source

Cross-platform support

Automates PNG optimization

Actively developed and maintained

Cons

Command line only, no GUI

Requires some technical knowledge to use

Compression can be slow for large images

Limited to only PNG file format


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