Remove Yoast from front end for a single post or page

yoast_seo_disable_single_post.php

<?php
/********* DO NOT COPY THE PARTS ABOVE THIS LINE *********/
/* Remove Yoast from front end for a single post or page
 * Credit: Dodinas https://stackoverflow.com/questions/37845968/disable-wordpress-yoast-seo-on-single-page
 * Last Tested: Nov 08 2019 using Yoast SEO 12.4 on WordPress 5.2.4
 * Note: For version 14+, please use the code here: https://developer.yoast.com/customization/yoast-seo/disabling-yoast-seo
 *********
 * DIFFERENT POST TYPES
 * Post: Change 123456 to the post ID
 * Page: Change is_single to is_page and 123456 to the page ID
 * Custom Post Type: Change is_single to is_singular and 123456 to the 'post_type_slug'
    Example: is_singular( 'cpt_slug' )
 *********
 * MULTIPLE ITEMS
 * Multiple of the same type can use an array.
    Example: is_single( array( 123456, 234567, 345678 ) )
 * Multiple of different types can repeat the if statement
 */

add_action( 'template_redirect', 'remove_wpseo' );
function remove_wpseo() {
    if ( is_single ( 123456 ) ) {
        global $wpseo_front;
        
        if ( defined( $wpseo_front ) ) {
            remove_action( 'wp_head', array ($wpseo_front, 'head' ), 1 );
        } else {
            $wp_thing = WPSEO_Frontend::get_instance();
            remove_action( 'wp_head', array( $wp_thing, 'head' ), 1 );
        }
    }
}

@fabianrod This is not the proper place to request support. Please check out our extensive help section or visit the free support forum. If you require further support, upgrading to our premium version provides you with access to our support team.

This GIST solution will not work with Yoast version 14 and above.

You now need to use.

$front_end = YoastSEO()->classes->get( Yoast\WP\SEO\Integrations\Front_End_Integration::class ); remove_action( 'wpseo_head', [ $front_end, 'present_head' ], -9999 );

Thanks @APlusDesign. That worked perfectly

If you only deactivate the Yoast's Front_End_Integration, it will still hide the title_tag and some other built-in wordpress filters (front-end-integration.php, line 207 and following:

/**
 * Registers the appropriate hooks to show the SEO metadata on the frontend.
 *
 * Removes some actions to remove metadata that WordPress shows on the frontend,
 * to avoid duplicate and/or mismatched metadata.
 */
public function register_hooks() {
  
  \add_action( 'wp_head', [ $this, 'call_wpseo_head' ], 1 );
  // Filter the title for compatibility with other plugins and themes.
  \add_filter( 'wp_title', [ $this, 'filter_title' ], 15 );

  \add_action( 'wpseo_head', [ $this, 'present_head' ], -9999 );

  \remove_action( 'wp_head', 'rel_canonical' );
  \remove_action( 'wp_head', 'index_rel_link' );
  \remove_action( 'wp_head', 'start_post_rel_link' );
  \remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head' );
  \remove_action( 'wp_head', 'noindex', 1 );
  \remove_action( 'wp_head', '_wp_render_title_tag', 1 );
  \remove_action( 'wp_head', 'gutenberg_render_title_tag', 1 );
}

Use this snippet to completely disable YOAST in the frontend:

add_action( 'plugins_loaded', 'disable_yoast_seo_frontend' );
function disable_yoast_seo_frontend() {
  if( is_admin() || !defined('WPSEO_VERSION') ) return;
  $loader = \YoastSEO()->classes->get( \Yoast\WP\SEO\Loader::class );
  \remove_action( 'init', [ $loader, 'load_integrations' ] );
  \remove_action( 'rest_api_init', [ $loader, 'load_routes' ] );
}

Tested with Yoast V. 15.7