Developer script to reset OPFS data on browser.

reset-opfs-script.js

/**
 * Developer script to reset OPFS data
 * (Please run on Chrome devtools console)
 */
async function resetOPFS() {
  if ('storage' in navigator && 'getDirectory' in navigator.storage) {
    const root = await navigator.storage.getDirectory();
    for await (const entry of root.values()) {
      console.log(`Remove: ${entry.name} (${entry.kind})`);
      await entry.remove();
    }
    console.log('OPFS has been reset');
  } else {
    console.log('OPFS is not supported in this browser');
  }
}

resetOPFS().catch(console.error);