Recursive script to delete all Chrome bookmarks via the browser's UI.

delete-all-bookmarks.js

/**
 * Script to recursively delete all bookmarks using the Chrome Bookmarks Manager UI.
 * This script continues to run until no more bookmarks are available.
 * 
 * Instructions:
 * 1. Open Chrome Bookmarks Manager:
 *    - Go to `chrome://bookmarks` in your Chrome browser.
 * 
 * 2. Open Developer Tools:
 *    - Right-click anywhere on the page and select "Inspect" OR
 *    - Press `Ctrl+Shift+I` (Windows/Linux) or `Cmd+Option+I` (Mac).
 * 
 * 3. Go to the Console Tab:
 *    - Click on the "Console" tab in the Developer Tools.
 * 
 * 4. Paste This Script:
 *    - Copy the entire script and paste it into the Console.
 *    - Press `Enter` to execute the script.
 * 
 * 5. Let It Run:
 *    - The script will begin deleting bookmarks recursively.
 *    - **Do not close or navigate away** from the page until the script completes.
 * 
 * 6. Important Notes:
 *    - **Backup Your Bookmarks First!**
 *      This script permanently deletes bookmarks and cannot be undone.
 *    - Delays are included to ensure Chrome processes each action properly. Do not interrupt the process.
 * 
 * 7. After Completion:
 *    - Refresh the page (`Ctrl+R` or `Cmd+R`) to confirm all bookmarks are deleted.
 */

async function deleteAllBookmarks() {
    const bookmarks = [...document.querySelector("body > bookmarks-app")
        .shadowRoot.querySelector("#main-container > bookmarks-list")
        .shadowRoot.querySelectorAll("[id*=bookmark]")];
    
    if (bookmarks.length === 0) {
        console.log("No more bookmarks to delete.");
        return; // Exit when no bookmarks are left
    }

    for (const el of bookmarks) {
        const btn = el.shadowRoot.querySelector("#menuButton");
        if (!btn) continue; // Skip if there's no menu button

        btn.scrollIntoView({ behavior: "smooth", block: "end", inline: "nearest" });
        await sleep();

        btn.click();
        await sleep();

        const deleteButton = document.querySelector("body > bookmarks-app")
            .shadowRoot.querySelector("bookmarks-command-manager")
            .shadowRoot.querySelector("cr-action-menu > button:nth-child(5)");

        if (deleteButton) {
            deleteButton.click();
            await sleep();
        }
    }

    // Recursively call the function to check for remaining bookmarks
    deleteAllBookmarks();
}

/**
 * Utility function to introduce a delay in execution.
 * @param {number} ms - Milliseconds to wait (default: 500ms).
 * @returns {Promise<void>} A promise that resolves after the specified time.
 */
function sleep(ms = 500) {
    return new Promise(resolve => setTimeout(resolve, ms));
}

// Start the deletion process
deleteAllBookmarks();