EWWW Image Optimizer Plugin WordPress, Download, Install

EWWW Image Optimizer Plugin WordPress

Reduce image sizes in WordPress including NextGEN, GRAND FlAGallery, FooGallery and more using lossless/lossy methods and image format conversion.

EWWW Image Optimizer Download Now

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Originals Link WordPress.org


How to Install EWWW Image Optimizer Plugin, Manually

  1. Upload the ‘ewww-image-optimizer’ plugin to your ‘/wp-content/plugins/’ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. Ensure jpegtran, optipng, pngout and gifsicle are installed on your Linux server (basic installation instructions are below if they are not). You will receive a warning when you activate the plugin if they are not present. This message will go away once you have them installed.
  4. The plugin will attempt to install jpegtran, optipng, and gifsicle automatically for you. This requires that the wp-content folder is writable by the user running the web server.
  5. If the automatic install did not work, find the appropriate binaries for your system in the ewww-image-optimizer plugin folder, copy them to wp-content/ewww/ and remove the OS ‘tag’ (like -linux or -fbsd). No renaming is necessary on Windows, just copy the .exe files to the wp-content/ewww folder. IMPORTANT: Do not symlink or modify the binaries in any way, or they will not pass the security checks. If you transfer files via FTP, be sure to transfer in binary mode, not ascii or text.
  6. If the binaries don’t run locally, you can sign up for the EWWW IO cloud service to run them via our optimization servers: https://ewww.io/plans/
  7. Recommended Visit the settings page to enable/disable specific tools and turn on advanced optimization features.
  8. Done!

If these steps do not work, more detailed instructions are available below the video tutorials. If you need further assistance using the plugin, please visit our Support Page. The forums are community supported only.

At the bottom of this page, you will find a list of known working webhosts. If you have any contributions or corrections to these lists, please contact me via the form at https://ewww.io/contact-us/

EWWW IO – Getting Started

EWWW IO – Advanced Settings

EWWW IO – Converting Images


EWWW IO – Cloud API Walkthrough

Using EWWW IO:

Installing pngout

Pngout is not enabled by default because it is resource intensive. Optipng is the preferred PNG optimizer if you have resource (CPU) constraints. Pngout is also not open-source for those who care about such things, but the command-line version is free.

  1. Go to the settings page.
  2. Uncheck the option to disable pngout and Save your settings.
  3. Click the Automatic link in the Plugin Status area to install pngout for your server, and the plugin will download the pngout archive, unpack it, and install the appropriate version for your server.
  4. Adjust the pngout level according to your needs. Level 0 gives the best results, but can take up to a minute or more on a single image.

To manually install pngout:

  1. Click the Manual link in the Plugin Status.
  2. Download the version of pngout that matches your webserver (NOT your desktop/laptop). Always use the -static downloads for Linux and FreeBSD. If you don’t know if you have a linux server, or Mac, or whether it is 32-bit vs 64-bit, ask your webhost, or turn on debugging and post the debug information in the forums with your request for assistance.
  3. If you have Windows on your personal computer, you may need to install 7-zip or something similar to extract the .tar.gz files. Linux and Mac OS X systems should have built-in support for gzipped files.
  4. For Linux and FreeBSD pngout downloads, you will see an i686 folder and x86_64. The first is for 32-bit the latter is for 64-bit. Upload the pngout-static file (pngout for Mac, pngout.exe for Windows) to the wp-content/ewww/ folder on your web server.
  5. Make sure the permissions are set correctly. It is recommended to use 755 or rwxr-xr-x, which is read, write, execute for the owner, read/execute for the group, and read/execute for everyone else.
  6. If pngout still is not working, you can download older versions, but do not go further back than the 20130221 release: http://static.jonof.id.au/dl/kenutils/

Installing (Compiling) other tools



In general, these lists only apply to shared hosting services. If the providers below have VPS or dedicated server options, those will likely work just fine. If you have any contributions or corrections to these lists, please contact me via the form at https://ewww.io

Webhosts where things work (mostly) out of the box:

Webhosts where the plugin will only work in cloud mode or only some tools are installed locally:



EWWW Image Optimizer Plugin WordPress

EWWW Image Optimizer Plugin WordPress

Plugin Not Working?

If any errors or problems with the plug-in then write comments.

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