Title: Crumbler – Cookie Consent Author: compresso Published: June 22, 2026 Last modified: June 22, 2026 --- Search plugins ![](https://ps.w.org/crumbler-cookie-consent/assets/banner-772x250.png?rev=3582180) ![](https://ps.w.org/crumbler-cookie-consent/assets/icon.svg?rev=3582180) # Crumbler – Cookie Consent By [compresso](https://profiles.wordpress.org/compresso/) [Download](https://downloads.wordpress.org/plugin/crumbler-cookie-consent.1.0.0.zip) * [Details](https://wordpress.org/plugins/crumbler-cookie-consent/#description) * [Reviews](https://wordpress.org/plugins/crumbler-cookie-consent/#reviews) * [Installation](https://wordpress.org/plugins/crumbler-cookie-consent/#installation) * [Development](https://wordpress.org/plugins/crumbler-cookie-consent/#developers) [Support](https://wordpress.org/support/plugin/crumbler-cookie-consent/) ## Description Crumbler is a hosted cookie consent service. This free, open-source plugin is the WordPress connector for it: enter your Site Key, enable the widget, done. The plugin provides: * Cookie consent banner with configurable design * Automatic script blocking before consent * Automatic iframe blocking (e.g. YouTube, Google Maps) * Cookie cleanup for non-accepted categories * Google Consent Mode v2 support * Cookie declaration (Gutenberg block and shortcode) with all detected services and cookies * Multi-language support (DE, FR, IT, EN) #### Free plugin, paid service (no trialware) The plugin itself is free and completely open source — none of its functionality is locked, time-limited or restricted to a paid tier. The cookie consent **service** behind it (operated by Compresso AG) requires a Crumbler account and subscription; a free trial is available. See **External services** below for exactly what data is exchanged. #### How it works 1. Create an account at [crumbler.ch](https://crumbler.ch) 2. Add your domain and copy the Site Key 3. Install and activate this plugin 4. Enter the Site Key under Settings > Crumbler 5. Enable the widget — done! The settings screen shows a live connection status, so you can see right away whether your domain is set up and active in Crumbler. ### External services This plugin connects your website to **Crumbler**, a hosted cookie consent service operated by Compresso AG. The plugin is a free, open-source client; the service requires a Crumbler account and subscription (a free trial is available). The plugin contains no locked or paid functionality. The plugin does not contact the service until you enter a Site Key and enable the widget. It communicates with the Crumbler service (cmp.compresso.ch) in three ways: 1. **Consent widget script.** On every front-end page (once enabled and a Site Key is set) the plugin loads the consent widget from `https://cmp.compresso.ch/widget/ cmp.min.js`. The widget renders the consent banner, blocks third-party scripts and iframes before consent, applies Google Consent Mode v2, and records the visitor’s anonymised consent decision with the service. Data sent: your Site Key and the visitor’s consent interaction. 2. **Cookie declaration data.** When the cookie declaration block or shortcode is displayed, the visitor’s browser requests the list of detected services and cookies from `https://cmp.compresso.ch/api/public/cookies`. Data sent: your Site Key and the requested language. 3. **Connection status check.** On the plugin’s settings screen (administrators only), the plugin requests `https://cmp.compresso.ch/api/public/config` to show whether your domain is set up and active. Data sent: your Site Key and your site’s domain. The result is cached temporarily. No data is sent to any party other than the Crumbler service. * Service provider: Compresso AG * Terms of Service: https://crumbler.ch/agb.php * Privacy Policy: https://crumbler.ch/datenschutz.php ### Credits This plugin bundles the **Press Start 2P** font by Cody Boisclair, licensed under the SIL Open Font License 1.1. The full license is included at `assets/fonts/Press- Start-2P-OFL.txt`. ## Screenshots [⌊The Crumbler settings page: enter your Site Key and see the live connection status.⌉⌊ The Crumbler settings page: enter your Site Key and see the live connection status .⌉[ The Crumbler settings page: enter your Site Key and see the live connection status. [⌊The "Cookie Declaration" block in the block editor.⌉⌊The "Cookie Declaration" block in the block editor.⌉[ The “Cookie Declaration” block in the block editor. [⌊The cookie declaration on the front end: intro text, the visitor's consent status and the detected services grouped by category.⌉⌊The cookie declaration on the front end: intro text, the visitor's consent status and the detected services grouped by category.⌉[ The cookie declaration on the front end: intro text, the visitor’s consent status and the detected services grouped by category. ## Blocks This plugin provides 1 block. * Cookie Declaration Displays the Crumbler cookie declaration with all detected services and cookies. ## Installation 1. Upload the `crumbler-cookie-consent` folder to `/wp-content/plugins/`, or install the plugin through the WordPress Plugins screen. 2. Activate the plugin through the “Plugins” menu in WordPress. 3. Go to Settings > Crumbler. 4. Enter your Site Key and enable the widget. ## FAQ ### Do I need a Crumbler account? Yes. The plugin is the connector to the Crumbler service; the consent banner, blocking and cookie declaration are provided by that service. You can start with a free trial at [crumbler.ch](https://crumbler.ch). ### Where do I find the Site Key? In your Crumbler dashboard, under the respective site. It is a UUID in the format` af232e06-59c2-4810-b09d-7a2b25632d1b`. ### Do I need to manually tag scripts? No. The widget automatically detects third-party scripts based on provider patterns from the Crumbler database. You can also tag scripts manually: ``` ``` ### Does the plugin support Google Consent Mode v2? Yes. The widget sets `gtag('consent', 'default', {...})` and updates the consent status after the user’s decision. ### How do I embed the cookie declaration? Two options: 1. **Gutenberg block**: add the “Cookie Declaration” block. The language can optionally be overridden in the block settings. 2. **Shortcode**: use `[crumbler_cookies]` on any page or post, optionally with a language parameter: `[crumbler_cookies lang="fr"]`. ### Can I hide the widget for administrators? Yes. Under Settings > Crumbler there is an option to hide the widget for logged- in administrators. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Crumbler – Cookie Consent” is open source software. The following people have contributed to this plugin. Contributors * [ compresso ](https://profiles.wordpress.org/compresso/) [Translate “Crumbler – Cookie Consent” into your language.](https://translate.wordpress.org/projects/wp-plugins/crumbler-cookie-consent) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/crumbler-cookie-consent/), check out the [SVN repository](https://plugins.svn.wordpress.org/crumbler-cookie-consent/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/crumbler-cookie-consent/) by [RSS](https://plugins.trac.wordpress.org/log/crumbler-cookie-consent/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.0 * Initial public release. * Settings page with Site Key, language and advanced options. * Live connection status check against the Crumbler service. * Automatic widget integration on the front end. * Cookie declaration as Gutenberg block (block.json) and shortcode. * Multi-language support (DE, FR, IT, EN). ## Meta * Version **1.0.0** * Last updated **13 hours ago** * Active installations **Fewer than 10** * WordPress version ** 5.0 or higher ** * Tested up to **7.0** * PHP version ** 7.4 or higher ** * Tags * [consent management](https://wordpress.org/plugins/tags/consent-management/)[cookie banner](https://wordpress.org/plugins/tags/cookie-banner/) [cookie consent](https://wordpress.org/plugins/tags/cookie-consent/)[GDPR](https://wordpress.org/plugins/tags/gdpr/) [google consent mode](https://wordpress.org/plugins/tags/google-consent-mode/) * [Advanced View](https://wordpress.org/plugins/crumbler-cookie-consent/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/crumbler-cookie-consent/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/crumbler-cookie-consent/reviews/) ## Contributors * [ compresso ](https://profiles.wordpress.org/compresso/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/crumbler-cookie-consent/)