Compress images without losing quality

Users are often annoyed by slow loading web pages. To speed up the process, site owners resize images. Compressing images allows you to save space on the server and reduce traffic consumption. The smaller the image, the better for the service.

Is it possible to compress images without losing quality? The result depends on the graphic source. Some photos can only be reduced by 100 bytes. It is recommended to compress ordinary images from the Internet by 40%.

The pictures should not lose quality. Image compression must be done in special applications. This review will look at the best programs for reducing images.

AdvanceCOMP

This is a legacy command line application. The utility is unlikely to appeal to users accustomed to working with a graphical interface. There is no reference information. Compressing images is carried out by entering a simple line for %a in (path to the image file) do advpng -z -4 "%a. If the user has already worked with the command line, then it will be easier for him to master the program.

After the image compression process is completed, the finished files will replace the original images. The quality of the pictures will remain the same. The compression result may disappoint the user. The size of the PNG image will be reduced by only 14.2%. The program can be used in combination with other utilities to optimize images.

Caesium

A simple open source application used to compress images in PNG, JPG and BMP formats. The program interface is simple and intuitive. To add the required images, click on the Add button. In the window that opens, you need to select pictures and specify a folder to save the results.

Then you need to click on the Compress button. The program will compress images for the site in a few seconds. The developers did not provide features without loss of quality. The utility simply transcodes files using user-specified parameters.

When working with the program, the user will encounter some restrictions. The application allows you to receive only 24-bit files. When using other formats, the weight of the image increases. The image size is reduced by only 1.2%. If the user is not satisfied with the result, he can refuse to save the file.

FILEminimizer Pictures

The program uses a radical approach to image optimization. The user has access to options for changing formats, scaling photographs, removing metadata, recoding JPEG files, taking into account the need to change the weight of the picture. The application is built in a familiar format. After selecting the source file and destination folder, all that remains is one click. The program compresses images very quickly.

The result depends on The user can compress the weight of the JPG image by up to 40%. Optimizing a PNG file gives no more than 28.8%. When compressing GIF, it is possible to reduce the weight of the image by only 16.5%.

FileOptimizer

The application optimizes images, executable files, archives, MS Office documents, PDF and many others. The program has one of the simplest and most intuitive interfaces. The user just needs to drag the pictures into the utility window, right-click on the computer mouse and select “optimize”. The original files will be replaced with new ones. The original versions of the images are moved to the trash.

If necessary, the user can restore files. FileOptimizer application is the best program for compressing PNG images. Images can be reduced by 42.2%. Optimizing images in and GIF gives no more than 17.7% and 15.9%, respectively. The user can also compress other files on their site.

ImageOptim

The program was created for computers running Mac OS. The application compresses pictures and also acts as a wrapper for other utilities. The program allows you to remove descriptions and color profiles. The quality of images after compression remains the same. Files are not re-encoded.

In order to optimize an image, you should drag it into the utility window. The image compression program does not work as fast as we would like. This will not be a problem for users who upload only 5-10 photos to the application.

GIF and PNG files can be compressed by 17.8%. JPG images can be reduced by 18.3%. The application is suitable for users who need a stable and simple tool.

jStrip

The program allows you to remove all unnecessary information: thumbnails, descriptions, color profile, unnecessary bytes at the beginning of files, etc. You cannot count on significant image compression. Since no re-encoding is performed, the quality of the images remains the same.

High-resolution photos can only be compressed by 1%. Small pictures can be reduced by 16.1%. The application cannot be called perfect. The program replaces the original pictures with new images.

OptiPNG

Compressing Wordpress images is done using the command line. The detailed instructions describe all the functions of the utility. PNG images can be reduced by 32.2%. It is recommended to combine the tool with other programs.

PNGGauntlet

The application has a simple graphical interface. The program can serve as a wrapper for other utilities. During compression, three tools are used simultaneously. Therefore, the image optimization process may take a long time. 25 high resolution images are processed in 1 hour.

The application gives excellent compression results. The utility reduced 50 PNG files by 41.3%. However, is the result worth such a long wait? Everyone decides for themselves. Users who need a tool for high-quality optimization of PNG files will definitely include the program in the list of utilities they use.

RIOT

This is the only free application that offers to install unnecessary modules. If the software advertised by the developers is not interesting to the user, then he can uncheck the corresponding items. The application has a clear interface. A multi-threaded process allows you to process several images at once. If necessary, you can compare the results with the originals.

The program reduces the number of colors in photos and recodes JPEG into a low-quality image. After processing, some files may become larger in size. Therefore, you need to check the results. It is worth noting that the application works well with GIF files. Animated pictures can be compressed by 42.8%.

PNGOptimizer

The application size is 146 KB. The program has a primitive interface. The utility compresses images in PNG format. The app removes interlacing, replaces background color, and removes text. The program imports GIF, BMP and TGA files and saves them as PNG images.

The application is inferior in efficiency to other utilities. PNG images can be compressed by only 3.6%. Ordinary pictures from the Internet can be reduced by 40%. Users looking for a small and simple solution for working with PNG files are advised to take a look at this application.

JPEGmini Lite

The program compresses images in two stages. First, the application determines how much of the image can be reduced without losing quality. In this case, a complex processing algorithm is used. The JPEG encoder then compresses the image. The picture quality remains almost the same.

To start the process, drag photos into the utility window. The original pictures will be replaced with the new pictures. The free version allows you to compress no more than 20 images daily.

Results vary depending on source photos. High-resolution images can be compressed by 71.3% without significant loss of quality. Simple JPG images can be reduced by only 8.2%. The larger the image size, the better the compression quality.

ScriptPNG

This is a command line tool. The program optimizes files in PNG format. To compress an image, you need to drag it onto the utility file itself. The command line will appear. The user will be asked to choose one of nine compression methods.

Here you need to indicate the appropriate option. The application will close. File processing will begin. The original photos will be replaced with new photos. When running the program, problems may arise with the installer, so error messages will have to be closed manually.

PNG images can be reduced by 40.1%. If the user wants to add other options, he can edit the script file himself.

conclusions

The FileOptimizer program gives the best results. With its help you can achieve 42.2% compression of PNG images. The app also works great with JPG and GIF files. If the user is not satisfied with this option, then he can take a closer look at the ScriptPNG utility. ImageOptim shows good results when working with images in JPEG and GIF format.