A JavaScript script that deliberately and automatically undoes reposts or retweets one by one on X (Twitter).

Automatically Undo Retweets or Reposts

/**
 * Before you execute the script on your profile page, scroll down to the 7th post or so.
 * Use stop() to clear the time interval and stop the process at will.
 */

let interval; 

// Stop process function
const stop = () => {
  clearInterval(interval);
}

// The post undoing process function
const undoRepost = (index) => {
  interval = setInterval(() => {
    try {
      let button = document.querySelectorAll('[data-testid=cellInnerDiv]')[4].querySelector('[role=group]').querySelectorAll('[dir]')[1];
    
      //Click the button only if it's a Repost button
      if (button.style.color === 'rgb(0, 186, 124)') {
        button.click();
      }

      //Click the Undo Repost button from the dropdown menu
      setTimeout(() => {
        try {
          document.querySelector('[data-testid=unretweetConfirm]').click();
          window.scrollTo(0, window.pageYOffset+300);
        } catch (error) {
          console.log("Undo Post button doesn't exist: ", error);
          window.scrollTo(0, window.pageYOffset+300);
        }
      }, 1000);

    } catch (error) {
      console.log("Post index was: ", index);
      console.error(error);
      
      if (index < 9) {
        index++;
        console.log("Post index is now: ", index);
      }
      
      clearInterval(interval);
      undoRepost(index);
    }
  }, 2000);
}

// Find and highlight the first post in the chain of posts to be removed, 
// by increasing or decreasing the number in the square brackets below.
document.querySelectorAll('[data-testid=cellInnerDiv]')[6];
 
// Start the process
undoRepost(6);