Free Discord anti-raid bot · v1.7 · AES-256-GCM · 19 modules · 10 languages
The Discord security bot
your server
deserves.
CortexGuard is a hosted Discord security bot that stops raids, spam, phishing and bad actors — and shares ban lists across your whole server network — before they cause damage.
Protection suite
Every threat,
covered.
19 independent modules, each with its own configurable action and thresholds. Enable only what your server needs — every module, its defaults, and our recommended settings are documented on the Wiki.
- Anti-Raid
- Anti-Alt
- Captcha
- Anti Token Grabber
- Anti-Nuke
- Shared Ban
- Security Scan
- Anti-Spam
- Anti-Link
- Anti-Invite
- Anti-Mention Spam
- Automod
- Anti-Shout
- Anti-File
- Anti-Emoji Spam
- Anti-Homoglyph
- Auto-Slowmode
- Warn Expiry
- Message Report
Latest release · v1.7
What's new.
Wider detection, one-click recovery and fewer false positives — all live on every server.
One-click raid undo
Every raid sanction log now carries an Undo button: staff with Ban Members can unban the whole wave and lift its timeouts without typing a command. /undo-raid still works.
Front door closed during a raid
While a raid is handled, invites and DMs can be paused through Discord's incident actions. In safe mode the verification level is raised too, then put back afterwards. All adjustable under ⚙️ Tuning.
Forwarded messages scanned
Links, invites and files hidden inside forwarded messages are now caught by Anti-Link, Anti-Invite and Anti-File.
Smarter Anti-Spam
On top of message speed: the same text repeated, long messages sent twice, attachment floods and sticker floods. Thresholds, mute length and spam-wave limits are adjustable, and exempt channels now cover spam, emoji, shout, homoglyph, link and invite filters.
Anti-Nuke sees more
Extended detection now also watches thread floods, scheduled-event floods and vanity URL changes, and strips dangerous roles from the offender when the sanction leaves them in the server.
Fewer false positives
Your own server's invites are allowed by default, Anti-Link counts only automatic strikes from the last 24 hours, repeated bot commands are not spam, and the risk score reads Discord spam flags and suspicious names.
Our commitment
No logs.
No data.
No exceptions.
CortexGuard does not collect, store, or transmit your personal data. What happens on your server stays on your server.
Zero message logging
Message content is read in memory for detection only and is never written to our database. Once a message is processed, it is gone.
Encrypted configuration
Sensitive fields — settings, moderation reasons, moderator IDs, captcha codes and saved profiles — are encrypted at rest with AES-256-GCM.
No third-party sharing
Your server data is never sold, rented, shared or transmitted to advertisers, analytics providers or any other third party.
Minimal data footprint
Only Discord IDs and moderation records are stored — never messages, usernames or avatars. Sensitive fields are encrypted, and every retention period is published in the Privacy Policy.
No analytics, no trackers
This website uses no cookies, local storage, tracking pixels, analytics, telemetry or third-party fonts and scripts. No consent banner is needed because nothing is tracked.
Your records, your control
Server administrators can clear any member's warnings with a single command, and you can exercise your GDPR rights — access, erasure, objection — by contacting us.
Questions
Discord security bot
FAQ.
Quick answers about CortexGuard, its anti-raid protection and its privacy model.
Is CortexGuard free?
Yes. CortexGuard is a free Discord security bot with no paid tier. All 19 modules are available on every server.
How does CortexGuard stop raids on Discord?
Anti-Raid watches join speed and reacts when too many accounts join in a short window. Raid Panic locks the server down, safe mode protects real members, and every sanctioned raid wave gets a one-click Undo button for staff.
Does CortexGuard log my messages?
No. Message content is read in memory for detection only and is never written to the database. Only Discord IDs and moderation records are stored, and sensitive fields are encrypted with AES-256-GCM.
How do I add CortexGuard to my Discord server?
Click Add to Discord, pick your server and authorize the bot. Then run /config in Discord to enable and tune modules.
Which modules are enabled by default?
Anti-Raid, Anti-Spam, Anti-Mention Spam, Automod and Logs are on by default. Every other module is opt-in.
Which languages does CortexGuard support?
The bot interface is available in 10 languages: English, Chinese, Hindi, Spanish, French, Arabic, Portuguese, Russian, Japanese and German.
Is CortexGuard affiliated with Discord?
No. CortexGuard is an independent bot, not affiliated with or endorsed by Discord Inc.
Help keep it running
Support
CortexGuard.
CortexGuard is free and maintained by a solo developer. Votes cost nothing but a click and directly help the bot stay online, get updated, and reach more servers.