Paste this in dev console on claude.ai, and it will delete all chats on your claude account.

Bulk-Delete-Claude-Chats.js

async function bulkDeleteClaudeChats() {
  const DELAY_MS = 500;

  const orgMatch = document.location.pathname.match(/org\/([a-f0-9\-]+)/);
  let orgId = orgMatch ? orgMatch[1] : null;

  if (!orgId) {
    const orgResp = await fetch("https://claude.ai/api/organizations", { credentials: 'include' });
    const orgs = await orgResp.json();
    orgId = orgs[0]?.uuid;
  }

  if (!orgId) throw new Error("Could not find Organization ID. Run this while logged into Claude.ai.");

  const listResp = await fetch(`https://claude.ai/api/organizations/${orgId}/chat_conversations`, {
    credentials: 'include'
  });
  
  if (!listResp.ok) {
    console.error("Failed to fetch chats. HTTP Status:", listResp.status);
    return;
  }

  const chats = await listResp.json();
  const count = chats.length;

  if (count === 0) {
    console.log("No conversations found.");
    return;
  }

  const totalSeconds = Math.ceil((count * DELAY_MS) / 1000);
  const minutes = Math.floor(totalSeconds / 60);
  const seconds = totalSeconds % 60;
  const timeString = minutes > 0 ? `${minutes}m ${seconds}s` : `${seconds}s`;

  const proceed = confirm(
    `Found ${count} chats.\n` +
    `Estimated runtime: ${timeString}\n\n`
  );

  if (!proceed) return;

  const delay = (ms) => new Promise(r => setTimeout(r, ms));
  const startTime = Date.now();

  for (let i = 0; i < count; i++) {
    const chat = chats[i];
    
    try {
      const res = await fetch(`https://claude.ai/api/organizations/${orgId}/chat_conversations/${chat.uuid}`, {
        method: 'DELETE',
        credentials: 'include',
        headers: { 'Content-Type': 'application/json' }
      });

      if (res.ok || res.status === 204) {
        console.log(`🗑️ [${i + 1}/${count}] Deleted: ${chat.name || chat.uuid}`);
      } else if (res.status === 429) {
        console.warn("Rate limited. Waiting 10 seconds...");
        await delay(10000);
        i--;
        continue;
      } else {
        console.warn(`[${i + 1}/${count}] Failed: ${res.status}`);
      }
    } catch (err) {
      console.error(`Error on ${chat.uuid}:`, err);
    }


    await delay(DELAY_MS);
  }

  const actualTime = ((Date.now() - startTime) / 1000).toFixed(1);
  console.log(`Finished. Deleted ${count} items in ${actualTime}s. Refresh the page.`);
}

bulkDeleteClaudeChats();