PngOptimizer Alternatives

PngOptimizer is described as 'Compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the PNG format using simple drag-and-drop' and is an app in the photos & graphics category. There are more than 25 alternatives to PngOptimizer for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best PngOptimizer alternative is Caesium Image Compressor, which is both free and Open Source. Other great apps like PngOptimizer are OptiImage, ImageOptim, TinyPNG and PNGGauntlet.

PngOptimizer iconPngOptimizer
  16
  • Free • Open Source
  • ...

PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG...

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PngOptimizer alternatives page was last updated Mar 27, 2025
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  1. Caesium Image Compressor icon

    Caesium Image Compressor

     75 likes
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    Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and multiple image processing at the same time, everyone will be able to reach the best result.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • IT flagItaly
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    BETA Version

    Properties

    1.  Lightweight

    Features

    1.  Image Optimizer
    2.  Batch processing
    3.  Portable
    4.  Ad-free
    5.  Drag and Drop
    6.  Works Offline
    7.  No registration required
    8.  Batch Rename Files
    9.  Dark Mode
    10.  Multiple languages

    Caesium Image Compressor VS PngOptimizer

     

    • Caesium Image Compressor is the most popular Web-based, Windows, Mac & Linux alternative to PngOptimizer.

    • Caesium Image Compressor is the most popular Open Source & free alternative to PngOptimizer.

    • Caesium Image Compressor is Free and Open SourcePngOptimizer is also Free and Open Source
    • Caesium Image Compressor is LightweightPngOptimizer is not according to our users
  2. OptiImage icon

    OptiImage

     10 likes
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    Optimize PNG, JPEG, WebP, and SVG images efficiently with flexible lossless and lossy compression modes, metadata control, and safe mode to avoid data loss, using tools like oxipng, jpegoptim, scour, and cwebp, enhancing image storage and load efficiency.

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Linux
    • Flathub
    • Flatpak
    OptiImage screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  No Tracking
    2.  No registration required
    3.  Ad-free
    4.  Works Offline
    5.  PNG Compression

    OptiImage VS PngOptimizer

     
  4. ImageOptim icon

    ImageOptim

     94 likes
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    ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).

    License model

    • Free Personal • Open Source

    Application types

    Country of Origin

    • PL flagPoland
    • European Union flagEU

    Platforms

    • Mac
    • Software as a Service (SaaS)
    ImageOptim screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Lossless Compression
    2.  PNG Compression
    3.  Lossless quality
    4.  Remove EXIF Data
    5.  Batch Editing
    6.  Ad-free
    7.  Works Offline
    8.  Support for GIF
    9.  Support for Multiple threads
    10.  PNG Optimization
    11.  Support for SVG
    12.  Remove metadata

    ImageOptim VS PngOptimizer

     

    • ImageOptim is the most popular SaaS alternative to PngOptimizer.

    • ImageOptim is Free Personal and Open SourcePngOptimizer is Free and Open Source
    • ImageOptim is LightweightPngOptimizer is not according to our users
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  6. TinyPNG icon

    TinyPNG

     23 likes
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    Using advanced lossy compression, TinyPNG reduces PNG file sizes by 50-80%, preserving full transparency and minimizing quality loss. Ideal for web designers, it increases website speed, saves bandwidth, and offers tools like a Photoshop plugin and API for seamless integration.

    90 TinyPNG alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Online
    • Adobe Photoshop
    • Wordpress
    TinyPNG screenshot 1

    TinyPNG Features

    1.  PNG Compression
    2.  PNG Optimization
    3.  Web-Based

    TinyPNG VS PngOptimizer

     
  7. PNGGauntlet icon

    PNGGauntlet

     32 likes
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    -Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG -Ultra-configurable

    PNGGauntlet is a .NET program that uses Ken Silvermans PNGOUT, OptiPNG and DeflOpt to optimize PNG fil.

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    PNGGauntlet screenshot 1

    PNGGauntlet Features

    1.  Works Offline
    2.  Lossless Compression
    3.  PNG Optimization
    4.  Optimization
    5.  PNG Compression
    6.  Image Processing

    PNGGauntlet VS PngOptimizer

     
  8. Oxipng icon

    Oxipng

     7 likes
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    Oxipng is a multithreaded lossless PNG compression optimizer in Rust. It can be used via a command-line interface or as a library in other Rust programs.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Squoosh

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Command line interface
    2.  PNG Optimization
    3.  PNG Compression
    4.  Portable
    5.  Works Offline
    6.  Ad-free
    7.  No Tracking
    8.  No registration required

    Oxipng VS PngOptimizer

     
  10. MAZANOKE icon

    MAZANOKE

     2 likes
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    MAZANOKE is a simple image compressor and converter that runs entirely in your browser. No external uploads, works offline as a web app, and is powered by Browser Image Compression.

    52 MAZANOKE alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Self-Hosted
    • Docker
    MAZANOKE screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Works Offline
    2.  No Tracking
    3.  Dark Mode
    4.  Ad-free
    5.  Progressive Web App
    6.  WebP Convert
    7.  WEBP Support

    MAZANOKE VS PngOptimizer

     

    • MAZANOKE is the most popular Self-Hosted alternative to PngOptimizer.

    • MAZANOKE is Free and Open SourcePngOptimizer is also Free and Open Source
    • MAZANOKE is Privacy focusedPngOptimizer is not according to our users
  11. OptiPNG icon

    OptiPNG

     20 likes
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    OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • RO flagRomania
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux

    OptiPNG Features

    1.  Command line interface
    2.  Image Processing
    3.  Optimization
    4.  PNG Optimization
    5.  PNG Compression

    OptiPNG VS PngOptimizer

     
  12. Pingo - image optimizer for web icon

    Pingo - image optimizer for web

     10 likes
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    Experimental, fast Web PNG/JPG optimizer which offer lossless, visually lossless or lossy compression. it performs image reductions over iterations thanks to recursive multi-processing and multithreading systems.

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Windows
    Pingo - image optimizer for web screenshot 1

    Pingo - image optimizer for web Features

    1.  Command line interface
    2.  PNG Optimization
    3.  PNG Compression
    4.  Lossless Compression
    5.  Export to SVG
    6.  Image Processing

    Pingo - image optimizer for web VS PngOptimizer

     
  13. Curtail icon

    Curtail

     6 likes
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    Curtail (previously ImCompressor) is a useful image compressor, supporting PNG and JPEG file types. It support both lossless and lossy compression modes with an option to whether keep or not metadata of images. It is inspired by .

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • Flatpak
    • Flathub
    • GNOME
    Curtail screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  No registration required
    2.  No Tracking
    3.  Ad-free

    Curtail VS PngOptimizer

     
  14. pngquant icon

    pngquant

     13 likes
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    pngquant is a command-line utility and a library for lossy compression of PNG images.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • PL flagPoland
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux

    pngquant Features

    1.  Command line interface
    2.  Portable
    3.  PNG Compression
    4.  Image Processing
    5.  PNG Optimization

    pngquant VS PngOptimizer

     
  15. FFShare icon

    FFShare

     4 likes
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    An Android app to compress images and videos through ffmpeg before sharing them.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Android
    • F-Droid
    FFShare screenshot 1
    FFShare screenshot 2
    FFShare screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  FFMPEG support

    FFShare VS PngOptimizer

     

    • FFShare is the most popular Android alternative to PngOptimizer.

    • FFShare is Free and Open SourcePngOptimizer is also Free and Open Source
    • FFShare is LightweightPngOptimizer is not according to our users
12 of 47 PngOptimizer alternatives