OptiPNG AlternativesImage Optimizers & File Compressors like OptiPNG

OptiPNG is described as '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' and is a Image Optimizer in the os & utilities category. There are more than 25 alternatives to OptiPNG for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best OptiPNG alternative is OptiImage, which is both free and Open Source. Other great apps like OptiPNG are ImageOptim, RIOT - Radical Image Optimization Tool, TinyPNG and PNGGauntlet.

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OptiPNG alternatives are mainly Image Optimizers but may also be File Compressors or Image Converters.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of OptiPNG.
OptiPNG iconOptiPNG
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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...

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OptiPNG alternatives page was last updated Mar 27, 2025
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Alternatives
  1. 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.

    53 OptiImage alternatives

    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 OptiPNG

     

    • OptiImage is the most popular Linux alternative to OptiPNG.

    • OptiImage is the most popular Open Source & free alternative to OptiPNG.

    • OptiImage is Free and Open SourceOptiPNG is also Free and Open Source
    • OptiImage is Privacy focused and LightweightOptiPNG is not according to our users
  2. ImageOptim icon

    ImageOptim

     93 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).

    93 ImageOptim alternatives

    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 OptiPNG

     

    • ImageOptim is the most popular Mac & SaaS alternative to OptiPNG.

    • ImageOptim is Free Personal and Open SourceOptiPNG is Free and Open Source
    • ImageOptim is LightweightOptiPNG is not according to our users
  4. RIOT - Radical Image Optimization Tool icon

    RIOT - Radical Image Optimization Tool

     99 likes
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    Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then choosing the right parameters are the key factors of smaller files.

    93 RIOT - Radical Image Optimization Tool alternatives

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Windows
    • GIMP
    • XnView
    • IrfanView
    RIOT - Radical Image Optimization Tool screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Change image size
    2.  Image Optimizer
    3.  Lossless Compression
    4.  Batch processing
    5.  Ad-free
    6.  Works Offline

    RIOT - Radical Image Optimization Tool VS OptiPNG

     

    • RIOT - Radical Image Optimization Tool is the most popular Windows alternative to OptiPNG.

    • RIOT - Radical Image Optimization Tool is Free and ProprietaryOptiPNG is Free and Open Source
    • RIOT - Radical Image Optimization Tool is LightweightOptiPNG is not according to our users
  5. 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.

    88 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 OptiPNG

     
    Comments about TinyPNG as an Alternative to OptiPNG
    Guest
    Positive •Jun 29, 2017
    0

    Excellent. So fast and easy to use, just drag and drop. It reduces 60% of my image. Thats amazing, saves us a lot of trouble.

    OptiPNG Icon
    TinyPNG icon

    • TinyPNG is the most popular Web-based alternative to OptiPNG.

    • TinyPNG is Freemium and ProprietaryOptiPNG is Free and Open Source
  6. 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.

    57 PNGGauntlet alternatives

    License model

    • Free • Proprietary

    Application types

    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 OptiPNG

     
  7. 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.

    91 Oxipng alternatives

    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 OptiPNG

     
  9. 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.

    50 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 OptiPNG

     

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

    • MAZANOKE is Free and Open SourceOptiPNG is also Free and Open Source
    • MAZANOKE is Privacy focusedOptiPNG is not according to our users
  10. 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.

    69 Pingo - image optimizer for web alternatives

    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 OptiPNG

     
  11. Clop icon

    Clop

     1 like
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    Clipboard optimizer for macOS.

    25 Clop alternatives

    License model

    • Freemium • Open Source

    Application type

    Platforms

    • Mac
    Clop screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  No registration required
    2.  Dark Mode
    3.  Ad-free
    4.  No Tracking
    5.  Works Offline

    Clop VS OptiPNG

     
  12. 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 .

    55 Curtail alternatives

    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 OptiPNG

     
  13. pngquant icon

    pngquant

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

    65 pngquant alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux

    pngquant Features

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

    pngquant VS OptiPNG

     
  14. Minuimus icon

    Minuimus

     5 likes
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    Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.

    76 Minuimus alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    • Linux

    Minuimus Features

    1.  PDF compression
    2.  Image Processing
    3.  Lossless Compression
    4.  PNG Compression
    5.  PNG Optimization
    6.  Batch processing

    Minuimus VS OptiPNG

     
12 of 46 OptiPNG alternatives