Increase All-in-One WP Migration

How to Quickly Increase the All-in-One WP Migration plugin Upload Limit

All-in-One WP Migration plugin

The All-in-One WP Migration plugin exports your WordPress website including the database, media files, plugins and themes with no technical knowledge required. With this plugin you'll be able to upload your site to a different location with a drag and drop in to WordPress.

Increasing the 512MB size limit on All-in-One WP Migration Plugin

For the instructions outlined to be able to work, you must use All-in-one WP Migration Plugin the previous version 6.77 or earlier.

You can download the version 6.77 here at, all-in-one-wp-migration.6.77

In the constants file…
/wp-content/plugins/all-in-one-wp-migration/constants.phpFind this…// =================
// = Max File Size =
// =================
define( ‘AI1WM_MAX_FILE_SIZE’, 2 << 28 );

and replace with this…

// =================
// = Max File Size =
// =================
define( 'AI1WM_MAX_FILE_SIZE', 2 << 28 *1.2);

And you will have 16GB upload limit.

Now you be able to Increase All-in-One WP Migration plugin whenever you need to do backup and/or full migration without upload limitations.

Additional Information

If you ever need to increase the upload limit to more than 10GB, simply increase the multiplier. By using a multiplier of 60 instead of 20 (as shown below) you would increase your upload limit to 30GB.

// =================
// = Max File Size =
// =================
define( 'AI1WM_MAX_FILE_SIZE', 536870912 * 60 );

Be aware that the upload limit will revert back to 512MB whenever the plugin is updated, so you will need to repeat this tutorial if you ever update the plugin.