Png Optimizer Software

1. PNG compression and optimization tool to compress PNG images into PNG-8 format with transparency support. Click UPLOAD FILES to choose up to 20 PNG images you want to compress. Wait for the upload and compression processes to complete.
2. Latest Blog Post: PNGGauntlet 3.1.2 - Bugfixes and forced PNG conversion June 17, 2012 PNGGauntlet 3.1.2 is a minor update that resolves some bugs, and adds a much-requested option. First, the bugfixes - PNGGauntlet will now correctly add directories that have a ‘.' in their name.
3. FileOptimizer, free download. File optimizer software for Windows: A tool used to compress and shrink the size of files for many uses. Review of FileOptimizer. Includes tests and PC download for Windows 32 and 64-bit systems.
4. Lowers the image size to make sure the webpage loads quicker.

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To boost up the load time and reduce bandwidth of your website, one of the best ways is to optimizing images on your website and reduces the sizes of images as much as possible.

With low size images, website can download fast and gives a great surfing experience to visitors, and that can be done by compressing the images. Image compression is not just used for the web, but one can compress the image to send it over the internet without taking much time or reduce the disk space on their computer.

Have you ever tried optimizing image sizes without affecting image quality and clarity? Here, we are representing 11 Best Image Compression Software. These image Compression Tools are excellent in their own ways.

We have collected different types of image compressing programs. Few of them are Windows-based lossless image compressing applications and also Web services and Mac programs. So, you can choose among these mentioned image compressing tools as per your requirement.

Free PNG Optimizer is compatible with Windows XP/Vista/7/8/10 environment, 32-bit version. The program's installer file is commonly found as PngOptimizerStarter.exe. Apple movie maker app. The software is included in Photo & Graphics Tools.

These Image Compression Tools can edit and compress images of different file formats and also can convert them into different image formats like JPEG, JPG, PNG, BMP, TIFF, SVG, GIF and many more. All these Image Compression Tools have varying characteristics and image formats.

Among these photo compressing programs, few are free, and few are paid versions. You can download Windows based image compressing application on your PC and use them for free, for example, Kraken. Without downloading any program or registering yourself on any website, you can use image compression tool in an extremely timely manner just by drag and drag option, for example-PUNYpng.

By using these image compression applications, one can enhance their website speed. Few of these applications works in batch processing also. So, in this manner it saves your time and energy, which you can utilize in some other work.

So, as per your requirement choose among showcased user-friendly, appropriate image compression tools. These programs are chosen due to their superb loss ratio, meaning they do not reduce image quality and clarity. The resultant image is generally impressive in each of these programs, and the loss is negotiable, which cannot be recognized by an average eye.

Below is the list of 11 Best Image Compression Software. Take a trial of them and we are sure that you will love to use them. Transfer mac files to windows external hard drive. Feel free to give your suggestions and recommendations about image compression tools.

11 Image Compression Software

1. FileOptimizer

FileOptimizer is an excellent image compression tool. Not only FileOptimizer compresses PNG, JPG, GIF files but also it can work with archives, executable files, PDF files, Microsoft office documents etc. It also compresses JPEG files without affecting the image quality. It compresses other downloaded files on your system.

File Optimizer is a Windows based image compression software. To get started working with FileOptimizer, you have to drag and drop your images that you want to compress on the interface. Right click and select optimize option and the image is compressed. Before and after file sizes of the image are displayed.

But a drawback with this compressor is that the original document goes to recycle bin, and the nicest thing is that it can be recovered.

2. Caesium

Caesium is simple open source image compressor. It compresses BMP, JPG and PNG formats.

This tool is free to download. It can be used on Windows PC and you can upload compressed images on the web instantly. This is very easy application; in few simple steps it can be executed. For this, you just need to do is Add program, choose your image source and select an output folder and click compress and you will get the desired result. You can also view the original file as well as the resultant file side by side and can view by zoom-in and zoom-out.

This amazing image compressor tool compresses files in the batch also. So, Caesium saves space on the web; loads faster, sends photos by e-mails quickly, compresses up to 90%.

3. PunyPNG

PunyPNG is one of the best lossless JPG compressors.

It provides lossless compressions to GIF, PNG, JPG files. For this service, you would not require to get yourself registered, you can use this service without login. The only thing you required is Flash player on your computer and create an account with PunyPNG to compress more images and image size.

It shrinks up to 10 images at a time with a maximum of 100KB each. In the advanced version, you are allowed to work with 15 images with a maximum size of 150KB each.

4. JPEGmini

JPEGmini is a wonderful image compression application. You can compress images without losing quality of images. It compresses photos online without bothering you for downloading any program or registering with any website. You can use your Facebook or Gmail account to sign up with JPEGmini.

JPEGmini Diet is desktop version of JPEGmini it is available fo Mac and Windows. It allows you to compressed files up to 5x. But, the only drawback with JPEGmini Diet is that it takes longer time to process batch files. It works with GIF, PNG and JPG formats.

5. PNGGauntlet

PNGGauntlet is one of the best image compressing tools. This combines 3 open source programs like PNGOUT, DeflOpt, and OptiPNG. PNGGauntlet always justifies the quality image. It converts GIF, JPG, TIFF, PNG and BMP files. It runs on Linux, Mac and Windows (requires .NET 4.0).

PNGGauntlet combines amazing features like configuration option, clean interface etc. and the result is always impressive. It also do the batch processing and delivers great PNG compression and optimization power for the least efforts added.

6. Kraken

If you wish to save the bandwidth of your website and improve its load time, then Kraken is the best option. It is an ultra fast image optimizer. This image compressing tool supports PNG, JPEG, SVG and GIF files.

Kraken has a very sleek and clean interface. You can use Firefox and Chrome, download API. It has world best Image compressing features, lossy optimization option, SSL protection, exceptional user support.

It optimizes the images, speed ups the websites and various applications. Kraken also optimizes Tablets and Smartphones so as to reduce image weight from these devices.

7. PNGOUTWin

PNGOutWin is an easy to use image compressing software. It creates small images, saves time, and speeds up load time of files and of your website. It creates more potential customers and reduces the bandwidth. With this PNG Optimizer, you can compress and convert PNG files from GIF, BMP, TIFF and other formats and also optimizes your existing files.

PNGOutWin is easy and familiar to use. You just drag and drop your images onto the program window, and it will automatically start compressing the images with the help of multiple threads to execute different tasks on different images and saves time. It decreases bandwidth, lessen the load of the website, free space on your hard drive and provide smart background processing.

8. Compress PNG

Compress PNG is another user-friendly image compression application. To use this program, you not need to install any program or register with any website. You can simply visit the website, upload the image file, folder or anything and get it compressed. This is very easy to use tool.

The uniqueness in this compressor is its combination of colors. This tool use similar colors and use them in a mixed pattern, and the result is amazing.

9. PNGOptimizer

PNGOptimizer is one of the smallest applications among the listed programs here. It has a very basic interface. It cleans up client's PNG files of wrong information. PNGOptimizer reduces weight of PNG format images. It converts images of different formats like GIF, BMP and TGA into PNG format. It also supports Animated PNG (APNG) also creates easily available PNG screenshots.

It can remove interlacing; keep, replace or remote the background color of image and also removes text from images. It supports high resolution PNG photos and do not affect the image quality. PNGOptimizer supports Windows seven/XP/Vista/7.

10. Advanced JPEG Compressor

Advanced JPEG Compressor is an image editing tool, which compresses your images or photos across a wide range of parameters. It also converts image files of different formats into JPEG.

An advantage of using this compressor is that it keeps the original image as it is without even doing a supplementary change. It provides excellent tools for editing and correcting images. These tools can do amazing changes. To sum it all up, Advanced JPEG Compressor provides converting and editing tools and user-friendly interface.

11. Smush.it

Smush.it is a Yahoo's web-based application. Smush is available for Firefox extension and online addition. It makes optimization of photos a breeze. To use this image compression tool you no need to get yourself registered, or make any account or sign-up with anyone. One can download crunched images in a ZIP file.

Smush.it can convert most of the image formats into GIF. It is one of the best GIF compressors among all the listed image compressor tools.

Hope you liked the above illustrated 11 Best Image Compression Software. We are waiting for your valuable feedback.

There are many types of different image formats and some of those most commonly found on the Internet are JPEG, GIF, BMP, TIFF and PNG. Each image format has its own purpose such as GIF is used for animated images, JPEG for high quality photos which automatically gets degraded after each save or even a resize, while our favorite PNG is best used on small and transparent pictures. Another huge advantage in PNG files is they're lossless meaning you can compress PNG's without losing quality.

You can easily find many tools on the Internet to compress PNG files but most, if not all of them produce different file sizes due to the algorithm unless they are using the same library/technology. Reducing the image file size to the maximum helps to save bandwidth cost, time to download and even achieving a higher Google PageSpeed score because 'optimize images' is one of the priorities. In this article we've put 13 free PNG compressor tools (online, command line, desktop) to the test to find the one that produces the smallest file size.

https://ilcametho1983.mystrikingly.com/blog/adobe-premiere-pro-cc-mac-vs-pc. To view the compression test results and summary, they can be found on page 2.

Command Line Tools

1. advpng

advpng is part of AdvanceCOMP that contains multiple free utilities to recompress PNG, ZIP, MNG and GZ files. advpng hasn't been updated since 2005 but the compression speed and results will surprise you. Older machines with slower hardware specifications takes slightly longer to process while the newer multi-core CPU takes only a second to produce amazing results.

advpng maximum compression command:

advpng.exe -z4 file.png

Download AdvanceCOMP

2. OptiPNG

OptiPNG is another open source command line PNG compressor that supports Windows and Linux operating system. Both stable and development versions are available to download. Do take note that the maximum command line compression for the stable and development versions are slightly different. The highest level of compression for the OptiPNG stable is -o7 while the development is only -o6. If you try to force -o7 on the development build, you will still get the same file size as -o6.

OptiPNG stable maximum compression command:

optipng.exe -o7 file.png

OptiPNG development maximum compression command:

optipng-hg-latest-win32 -o6 file.png

Download OptiPNG

3. Pngcrush

Pngcrush is also a commandline application that attempts to optimize PNG images by trying out different compression levels and PNG filter methods. If you use the -brute switch, Pngcrush will test the image with 148 methods to find the one that gives the best compression.

Pngcrush maximum compression command:

Pngcrush.exe -brute file.png output.png

Download Pngcrush

4. PngOptimizerCL

PngOptimizer comes with a simple graphical user interface program and all you need to do is drag the images that you want to compress to the program's window, and also a command line application that runs in command prompt. Other than cleaning up wrong/useless information on PNG to reduce the file size, it can also support animated PNG format (apng) which is still uncommon today. You can either specify the exact file name to optimize or can even use the asterisk character as a wildcard.

PngOptimizerCL maximum compression command:

PngOptimizerCL.exe -file:'file.png'

Download PngOptimizerCL

5. PNGOUT

Unlike most of the command line PNG optimizers, PNGOUT is not open source because the compression algorithm is incorporated into their commercial GUI version called PNGOUTWin that has batch processing and multi-core CPU support. Although it is not open source, you can find pre-compiled binaries for Windows, Linux, BSD and Mac OS X. PNGOUT is one of the easiest to use because by default it uses the highest Xtreme compression algorithm for optimization without specifying an additional command line switch.

PNGOUT maximum compression command:

pngout.exe file.png

Download PNGOUT

3. PunyPNG

PunyPNG is one of the best lossless JPG compressors.

It provides lossless compressions to GIF, PNG, JPG files. For this service, you would not require to get yourself registered, you can use this service without login. The only thing you required is Flash player on your computer and create an account with PunyPNG to compress more images and image size.

It shrinks up to 10 images at a time with a maximum of 100KB each. In the advanced version, you are allowed to work with 15 images with a maximum size of 150KB each.

4. JPEGmini

JPEGmini is a wonderful image compression application. You can compress images without losing quality of images. It compresses photos online without bothering you for downloading any program or registering with any website. You can use your Facebook or Gmail account to sign up with JPEGmini.

JPEGmini Diet is desktop version of JPEGmini it is available fo Mac and Windows. It allows you to compressed files up to 5x. But, the only drawback with JPEGmini Diet is that it takes longer time to process batch files. It works with GIF, PNG and JPG formats.

5. PNGGauntlet

PNGGauntlet is one of the best image compressing tools. This combines 3 open source programs like PNGOUT, DeflOpt, and OptiPNG. PNGGauntlet always justifies the quality image. It converts GIF, JPG, TIFF, PNG and BMP files. It runs on Linux, Mac and Windows (requires .NET 4.0).

PNGGauntlet combines amazing features like configuration option, clean interface etc. and the result is always impressive. It also do the batch processing and delivers great PNG compression and optimization power for the least efforts added.

6. Kraken

If you wish to save the bandwidth of your website and improve its load time, then Kraken is the best option. It is an ultra fast image optimizer. This image compressing tool supports PNG, JPEG, SVG and GIF files.

Kraken has a very sleek and clean interface. You can use Firefox and Chrome, download API. It has world best Image compressing features, lossy optimization option, SSL protection, exceptional user support.

It optimizes the images, speed ups the websites and various applications. Kraken also optimizes Tablets and Smartphones so as to reduce image weight from these devices.

7. PNGOUTWin

PNGOutWin is an easy to use image compressing software. It creates small images, saves time, and speeds up load time of files and of your website. It creates more potential customers and reduces the bandwidth. With this PNG Optimizer, you can compress and convert PNG files from GIF, BMP, TIFF and other formats and also optimizes your existing files.

PNGOutWin is easy and familiar to use. You just drag and drop your images onto the program window, and it will automatically start compressing the images with the help of multiple threads to execute different tasks on different images and saves time. It decreases bandwidth, lessen the load of the website, free space on your hard drive and provide smart background processing.

8. Compress PNG

Compress PNG is another user-friendly image compression application. To use this program, you not need to install any program or register with any website. You can simply visit the website, upload the image file, folder or anything and get it compressed. This is very easy to use tool.

The uniqueness in this compressor is its combination of colors. This tool use similar colors and use them in a mixed pattern, and the result is amazing.

9. PNGOptimizer

PNGOptimizer is one of the smallest applications among the listed programs here. It has a very basic interface. It cleans up client's PNG files of wrong information. PNGOptimizer reduces weight of PNG format images. It converts images of different formats like GIF, BMP and TGA into PNG format. It also supports Animated PNG (APNG) also creates easily available PNG screenshots.

It can remove interlacing; keep, replace or remote the background color of image and also removes text from images. It supports high resolution PNG photos and do not affect the image quality. PNGOptimizer supports Windows seven/XP/Vista/7.

10. Advanced JPEG Compressor

Advanced JPEG Compressor is an image editing tool, which compresses your images or photos across a wide range of parameters. It also converts image files of different formats into JPEG.

An advantage of using this compressor is that it keeps the original image as it is without even doing a supplementary change. It provides excellent tools for editing and correcting images. These tools can do amazing changes. To sum it all up, Advanced JPEG Compressor provides converting and editing tools and user-friendly interface.

11. Smush.it

Smush.it is a Yahoo's web-based application. Smush is available for Firefox extension and online addition. It makes optimization of photos a breeze. To use this image compression tool you no need to get yourself registered, or make any account or sign-up with anyone. One can download crunched images in a ZIP file.

Smush.it can convert most of the image formats into GIF. It is one of the best GIF compressors among all the listed image compressor tools.

Hope you liked the above illustrated 11 Best Image Compression Software. We are waiting for your valuable feedback.

There are many types of different image formats and some of those most commonly found on the Internet are JPEG, GIF, BMP, TIFF and PNG. Each image format has its own purpose such as GIF is used for animated images, JPEG for high quality photos which automatically gets degraded after each save or even a resize, while our favorite PNG is best used on small and transparent pictures. Another huge advantage in PNG files is they're lossless meaning you can compress PNG's without losing quality.

You can easily find many tools on the Internet to compress PNG files but most, if not all of them produce different file sizes due to the algorithm unless they are using the same library/technology. Reducing the image file size to the maximum helps to save bandwidth cost, time to download and even achieving a higher Google PageSpeed score because 'optimize images' is one of the priorities. In this article we've put 13 free PNG compressor tools (online, command line, desktop) to the test to find the one that produces the smallest file size.

https://ilcametho1983.mystrikingly.com/blog/adobe-premiere-pro-cc-mac-vs-pc. To view the compression test results and summary, they can be found on page 2.

Command Line Tools

1. advpng

advpng is part of AdvanceCOMP that contains multiple free utilities to recompress PNG, ZIP, MNG and GZ files. advpng hasn't been updated since 2005 but the compression speed and results will surprise you. Older machines with slower hardware specifications takes slightly longer to process while the newer multi-core CPU takes only a second to produce amazing results.

advpng maximum compression command:

advpng.exe -z4 file.png

Download AdvanceCOMP

2. OptiPNG

OptiPNG is another open source command line PNG compressor that supports Windows and Linux operating system. Both stable and development versions are available to download. Do take note that the maximum command line compression for the stable and development versions are slightly different. The highest level of compression for the OptiPNG stable is -o7 while the development is only -o6. If you try to force -o7 on the development build, you will still get the same file size as -o6.

OptiPNG stable maximum compression command:

optipng.exe -o7 file.png

OptiPNG development maximum compression command:

optipng-hg-latest-win32 -o6 file.png

Download OptiPNG

3. Pngcrush

Pngcrush is also a commandline application that attempts to optimize PNG images by trying out different compression levels and PNG filter methods. If you use the -brute switch, Pngcrush will test the image with 148 methods to find the one that gives the best compression.

Pngcrush maximum compression command:

Pngcrush.exe -brute file.png output.png

Download Pngcrush

4. PngOptimizerCL

PngOptimizer comes with a simple graphical user interface program and all you need to do is drag the images that you want to compress to the program's window, and also a command line application that runs in command prompt. Other than cleaning up wrong/useless information on PNG to reduce the file size, it can also support animated PNG format (apng) which is still uncommon today. You can either specify the exact file name to optimize or can even use the asterisk character as a wildcard.

PngOptimizerCL maximum compression command:

PngOptimizerCL.exe -file:'file.png'

Download PngOptimizerCL

5. PNGOUT

Unlike most of the command line PNG optimizers, PNGOUT is not open source because the compression algorithm is incorporated into their commercial GUI version called PNGOUTWin that has batch processing and multi-core CPU support. Although it is not open source, you can find pre-compiled binaries for Windows, Linux, BSD and Mac OS X. PNGOUT is one of the easiest to use because by default it uses the highest Xtreme compression algorithm for optimization without specifying an additional command line switch.

PNGOUT maximum compression command:

pngout.exe file.png

Download PNGOUT

6. ScriptPNG

ScriptPNG is actually a batch file that is capable of running up to 10 PNG compressors to optimize an image file. Selecting the ultra brute option number 9 will use the maximum compression options to produce the smallest file size but taking more time to complete the optimization process. All you need to do is drag and drop your PNG files to the program from Explorer and followed by selecting one of the 9 available options.

Download ScriptPNG

7. TruePNG

TruePNG only supports PNG files unlike some of the PNG compressors above that can attempt to convert other image formats such as JPEG and GIF into PNG if it is able to achieve a smaller file size.

TruePNG maximum compression command:

TruePNG.exe input.png /o max

Download TruePNG

Desktop Software

8. PNGGauntlet

PNGGauntlet is actually a front-end tool that uses 3 different PNG optimizers (PNGOUT, OptiPNG, and DeflOpt) to further compress PNG files instead of normally using just 1. The usage of 3 compressors does increase the time taken to compress the PNG files but definitely yields a smaller file size. A nice feature found in PNGGauntlet is the ability to automatically queue multiple files for batch processing. The default options from the Tools menu are already best (maximum) settings unless you want to preserve the PNG metadata, use grayscale color type and etc. Microsoft .NET Framework 4 is required to run.

Download PNGGauntlet

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ScriptPNG isn't available anymore. The download link instead takes me to an unrelated Lossy PNG compressor called Pingo. Also, I couldn't even test Pingo on my computer because its 64-bit only.

I originally used PngGauntlet for everything, but recently that program bricked itself on my Windows 10 laptop [read: within the past week]; any attempt to launch it leads to absolutely nothing happening, not even an error message. Reinstalling the program, updating and reinstalling .NET, and even reinstalling Windows system components did not help. Running as Administrator, running in compatibility mode, double clicking the executable itself and double checking the shortcuts did not help either.

I really wish the creator of the software would actually update the stupid thing. In the meantime, if anybody has a backup download/installation link for ScriptPNG, I would really appreciate it.

I've updated the ScriptPNG link with the latest download I could find from 2016.

PNGGauntlet works fine here on the latest Win 10 32-bit and 64-bit. Could be an issue specific to you. The developer hasn't updated the program since 2012 so I doubt if anything new will be released now. Sadly it's not open source so nobody else can carry on the project.

This is Quant – >>> pngquant.org/
And this is Gaundlet ->>> pnggauntlet.com/
The bad thing is that Gaundlet takes a lot of time 20m+
From my tests the best format is quant – > gaundlet – > quant with the follwing results:
stage0 – original ~ 15.455mb
stage1 – quantonly ~ 5.456mb
stage2 – quantgaundlet ~ 5.246mb
stage3 – quantgaundletquant ~ 4.797mb – From my point of view this is the best variant conv. time/quality
stage3.1 – quantgaundletquantgaundlet ~ 4.630mb
stage3.2 – quantgaundletquantgaundletquant ~ 4.427mb
stage3.3 – quantgaundletquantgaundletquantgaundlet ~ 4.268mb
stage3.4 – quantgaundletquantgaundletquantgaundletquant ~ 4.180mb
stage3.5 – quantgaundletquantgaundletquantgaundletquantgaundlet ~ 4.028
The other way around with gaundlet first is WORST, a lot of TIME is lost for nothing for example stage 2 is equal with stage 6 and stage 6 takes 40 minutes
stage4 – gaundletonly ~ 12.703mb
stage5 – gaundletquant ~ 5.456mb
stage6 – gaundletquantgandlet ~ 5246mb

CompressPNG.com, when it is online, compresses up to 20 images at a time, and allows you to the compression (colour count) if the file is sill too large.
I don't work for them, but have compressed 1000's with them.

The optimizers are often impractically slow when dealing with large images that aren't expected to be viewed that many times. 24-bit truecolor screenshots with sharp edges, especially where fonts don't have anti-aliasing, can typically be reduced in size by switching off PNG prediction (none, sub, paeth). If your imageset is a guide/review with most images of this kind, then you can batch convert all of them in FastStone Image Viewer and improve their size and decoding speed. Sometimes scans without any transparency get saved as a layer with alpha by some software. They can be made smaller by flattening the image to background beforehand.

Well this was not good at all! I just wasted 15 hours of compressing PNG files with PNGAUNTLET and FileOptimizer, only to see Googles Page Speed still complaining about compression. So I checked a file, and either PNGAUNTLET or Fileoptimizer reduzed my 400kb PNG by a single byte! So I downloaded one of the other tools PNG Optimizer, same there. This PNG doesnt seem to compress with windows compression tools.

https://vpaeg.over-blog.com/2021/01/apple-store-dj-equipment.html. I tried the compressor.io website and it compresses the image by 90% wooosh… Fuck!

I am beginning to think that none of the windows apps are updated and are running old compression algorythms. I will download and check out one of the dos tools you have here since I post this, but if I do not come with an update after this post consider the windows tools useless by todays standards.

Kim Steinhaug

thanks!

ScriptPng worked best for my 20k photos. I tried them all.
CPUS will take a pounding at 100% for days if using 8 cores under. I switched to a super computer (4) e78860s a few hours it was done but not before I was sweating and my hearing went deaf from the turbo fans kicking in. If you use the above scriptPNG you should use

1) CPUID HWMonitor – MONITORS CPU TEMPS MUST HAVE
2) SpeedFan by almico.com/speedfan.php – configures temps of CPU/GPU etc

All in all watch those temps NOT the CPU at 100%. its the temps that will kill your comp.

Not for newbies! But works great under these conditions.

I'm pretty sure TinyPNG is using PNGoo with 128 colors, dithered based on the file size. I would have just used TinyPNG but I needed to work on ~1000 images.

With the simple images (charts) I was working with, I couldn't really see any difference in the quality from the original ~500k image, the ~400k lossless compressed image from PNGGauntlet, and the ~200k lossy image from PNGGoo. I was able to eek out a few more K (~6%) by running first through PNGoo (128 colors, no dithering) and then through PNGGauntlet. Real numbers example: 581k -> 168k -> 157k (72% total decrease!)

Great list! You may check out resizeimage.net too, it can resize and optimize images in one step. Wipe macbook pro yosemite.

Hi Reymond,

I love your comparison articles – please keep them up!

I have done my own image compression comparison, and would love if you could have a peak in it.

myblog.chaiware.org/2013/09/best-lossless-image-size-reduction.html

I have signed up to your RSS.

Thanks for sharing, Raymond
I'll try pngout for Mac OS X, it seems interesting.
I currently use compresspng to optimize. It is a fantastic online tool.

Nyc i am using pngout it consume processor so much during compression

Best Free Pc Optimizer Software

Two other programs of interest:

* RIOT is useful to cut down on unnecessary extra colors ahead of additional compression. If the image looks the same to you with only 16 colors as with 256, that's a big size difference.
* FileOptimizer – although it's just a front end for some of the programs already discussed above
* Png Optimizer psydk.org/PngOptimizer.php probably not the same compression level, but will compress animated PNG files (APNG).

RIOT is a great plugin for irfanview

thanks Raymond for this info :)

Thanks for the update!

thanks a lot Raymond! just what i was looking for. pngout is really good. only thing lags is transparent color. but it is awesome that how this can save lot of bandwidth. really helpful post. thanks again.

thanks!! it help me alot. Imovie for mac cost.

Thanks mate!

thx ray~

Png Optimizer Software Developer

Png Optimizer Download

PNG is the best image format in saving bandwidth :D Now you can crush it summore…

Network Optimizer Software