X Heimdall

Detect who doesn't follow you back on X

X Heimdall scans your entire following list on X (formerly Twitter) and shows you every account that isn't following you back — in seconds, not hours. No login tokens to paste, no shady third-party sites, no data leaving your browser. Ever. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗛𝗔𝗧 𝗜𝗧 𝗗𝗢𝗘𝗦 ✦ One-click scan — hit Scan and watch real-time progress as your full following list is analyzed ✦ Followers audit — see every account that doesn't follow you back, with avatar, handle, display name, follower count, and verified badge ✦ Single or bulk unfollow — remove one account at a time, or select dozens and unfollow them all at once ✦ Search & filter — instantly find any user in your results by name or @handle ✦ Export to CSV — download your non-followers list as a spreadsheet for record-keeping or further analysis ✦ Stop anytime — cancel a scan or bulk unfollow mid-process with one click ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗣𝗥𝗜𝗩𝗔𝗖𝗬 𝗙𝗜𝗥𝗦𝗧 Unlike web apps that ask for your Twitter password or OAuth tokens, X Heimdall works entirely inside your browser using your existing X login session — no data is ever sent to external servers. • Zero external servers — no data is ever sent outside your device • No OAuth — no third-party app access to your account • Local storage only — scan results stay in Chrome's built-in storage • Minimal permissions — only requests access to x.com, nothing else • Open source (coming soon) Your data stays yours. Period. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗔𝗖𝗖𝗢𝗨𝗡𝗧 𝗦𝗔𝗙𝗘𝗧𝗬 Built-in rate limiting protects your account from triggering X's spam detection: • Automatic delays between API requests during scanning • Throttled bulk unfollows (one action per 800ms) • Rate-limit detection — if X throttles you, the extension pauses and tells you when to retry • Request timeouts and error recovery built in ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗛𝗢𝗪 𝗧𝗢 𝗨𝗦𝗘 1. Install the extension 2. Open x.com and make sure you're logged in 3. Click the X Heimdall icon in your toolbar 4. Hit "Scan" and wait for results 5. Review, search, filter, unfollow, or export That's it. No setup, no configuration, no account creation. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗙𝗥𝗘𝗤𝗨𝗘𝗡𝗧𝗟𝗬 𝗔𝗦𝗞𝗘𝗗 𝗤𝗨𝗘𝗦𝗧𝗜𝗢𝗡𝗦 Q: Does this work with the new X / Twitter? A: Yes. X Heimdall is built specifically for x.com (formerly twitter.com) and works with the current 2025 version of the platform. Q: Will I get banned for using this? A: X Heimdall uses built-in rate limiting that mimics normal browsing speed. It does not spam the API or perform aggressive automation. That said, bulk-unfollowing hundreds of accounts in a short period is something you should do gradually. Q: Does it need my password? A: No. It uses your existing browser session — the same cookies your browser already has when you're logged into X. No passwords, no tokens, no third-party access. Q: How many accounts can it scan? A: There is no hard limit. The extension paginates through your entire following list. For large lists (5,000+), the scan may take several minutes due to rate-limiting delays. Q: Can I see who unfollowed ME? A: Not currently. X Heimdall focuses on identifying accounts you follow that don't follow you back. Q: Does it work on Twitter.com? A: Twitter.com redirects to x.com, so yes — it works regardless of which URL you use. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗛𝗢 𝗜𝗧'𝗦 𝗙𝗢𝗥 • Creators and influencers who want to clean up their following list • Social media managers maintaining brand accounts • Anyone tired of one-sided follows • Twitter / X power users who value a healthy follower-to-following ratio ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗧𝗘𝗖𝗛 𝗗𝗘𝗧𝗔𝗜𝗟𝗦 • Manifest V3 (latest Chrome extension standard) • Built with React and TypeScript • Dark theme matching X's native design • Lightweight — no background resource usage when idle