Easily remove bookmarks en masse on Twitter/X via the browser's developer tools console.

bulkUnbookmark.js

// Easily remove bookmarks en masse on Twitter/X via the browser's developer tools console.
//
// NOTE: If you have many bookmarks, you WILL encounter the "429 (Too Many Requests)" error. 
// The best way to resolve this is use a VPN to change your IP while still logged into your existing account.
//
// NOTE 2: Code was generated by ChatGPT and modified by me.

const bulkUnbookmark = (() => {
  let running = false;
  const sleep = (ms) => new Promise(r => setTimeout(r, ms));

  // Try several selectors because Twitter/X changes labels frequently.
  function findRemoveButtons() {
    const selectors = [
      // Common aria-label variants.
      'button[aria-label="Remove Bookmark"]',
      'button[aria-label="Remove bookmark"]',
      'button[aria-label="Remove from Bookmarks"]',
      'button[aria-label="Remove from bookmarks"]',
      // Sometimes it's a menu item (less common).
      '[role="menuitem"][data-testid="removeBookmark"]',
      // Fallback: some builds use testids.
      'button[data-testid="removeBookmark"]',
      // Very broad fallback: any button whose aria-label contains "Remove" + "Bookmark".
      'button[aria-label*="Remove"][aria-label*="Bookmark"]',
      'button[aria-label*="Remove"][aria-label*="bookmark"]',
    ];

    for (const sel of selectors) {
      const nodes = Array.from(document.querySelectorAll(sel));
      if (nodes.length > 0) return nodes;
    }
    return [];
  }

  async function clickButtons(buttons, delayMs) {
    // Click from bottom up to reduce layout shifting surprises.
    for (const btn of buttons.reverse()) {
      if (!running) return;
      btn.click();
      await sleep(delayMs);
    }
  }

  async function loop({
                        clickDelayMs = 250,
                        roundDelayMs = 800,
                        maxEmptyRounds = 8,
                      } = {}) {
    let emptyRounds = 0;

    while (running) {
      const buttons = findRemoveButtons();

      if (buttons.length === 0) {
        emptyRounds += 1;
        if (emptyRounds >= maxEmptyRounds) {
          console.log("[bulkUnbookmark] No more remove buttons found; stopping.");
          running = false;
          break;
        }

        await sleep(roundDelayMs);
        continue;
      }

      emptyRounds = 0;
      console.log(`[bulkUnbookmark] Found ${buttons.length} remove buttons. Clicking...`);
      await clickButtons(buttons, clickDelayMs);

      // Give the UI time to re-render/remove items
      await sleep(roundDelayMs);
    }
  }

  return {
    start: (opts) => {
      if (running) return console.log("[bulkUnbookmark] Already running.");
      running = true;
      console.log("[bulkUnbookmark] Starting...");
      loop(opts).catch(err => {
        running = false;
        console.error("[bulkUnbookmark] Error:", err);
      });
    },
    stop: () => {
      running = false;
      console.log("[bulkUnbookmark] Stopped.");
    },
  };
})();

bulkUnbookmark.start();
// Use the below line to stop the script when needed.
// bulkUnbookmark.stop();