Discord auto-moderation bot (no code): filter spam, links & bad words

Auto-moderation keeps your server clean without a human watching chat 24/7. This guide shows the most useful moderation rules you can copy, and how to run them automatically on your own Discord bot — no code, in about five minutes.

What auto-moderation can catch#

A moderation rule is always the same shape: a trigger (a new message arrives), a condition (does it break a rule?), and an action (delete it, warn the user, time them out). Here are the rules most servers want:

• Banned words — profanity, slurs, or server-specific terms you don't allow.
• Invite links — messages containing discord.gg/ (a classic ad-spam and poaching vector).
• External links — block all links, or allow only a whitelist of trusted domains.
• Spam & flooding — the same message repeated, or many messages in a few seconds.
• Mass mentions — messages that @everyone, @here, or ping many users at once (raid behaviour).
• ALL CAPS / wall-of-text — messages that are mostly uppercase or extremely long.
• New-account posting — a brand-new member dropping a link in their first message.

Common rules to copy#

Start with these three — they cover the majority of real abuse:

1. Invite-link filter — delete any message where the content contains discord.gg/ or discord.com/invite/, then DM the user: Please don't post server invites here.
2. Bad-word filter — keep a private list (e.g. word1, word2, word3); if the message contains any of them, delete it and add a warning. Repeat offenders get a timeout.
3. Mention-spam guard — if a message pings more than 5 users (or uses @everyone from a non-moderator), delete it and time the sender out for 10 minutes.

Escalation ladder that works well: 1st offence → delete + warn, 2nd → 10-minute timeout, 3rd → kick or ban. You can build each rung as its own branch.

Locking the server down during a raid#

Per-message rules handle the steady state. A raid is different: dozens of fresh accounts arriving at once, faster than any per-message rule can escalate. Two server-wide levers help, and both are one action each:

• Discord — Update Server with Verification level set to High stops accounts that only just joined from posting at all. Pair it with a second workflow (or a Wait node) that sets the level back afterwards, so you don't leave the server locked for weeks.
• Discord — Set Channel Permission, denying Send Messages for @everyone on your busiest channel, closes just that room instead of the whole server.

A common shape: a Member Join trigger counts joins with a Scores node, and if more than N arrive inside a minute, it raises the verification level and posts a heads-up in your mod channel.

Logging what your moderators do#

Rules catch members. A mod log catches everything else — and Discord only records who performed an administrative action in the audit log, so that's where the answer lives.

The Discord — Audit Log Entry trigger fires whenever something is written there, giving you the action (member_kick, channel_delete, role_update…), who did it, the target and the reason. Two filters keep it useful: Action Filter narrows it to the actions you care about (leaving it empty fires on everything, which is noisy on a busy server), and Only when done by watches specific people.

Wire it into a Send Embed in a private #mod-log channel and you have a permanent, searchable record. Your bot needs the View Audit Log permission — without it Discord never sends the event at all.

Set it up with Noria (no code)#

Try the moderation workflow in the real editor below. Move or connect steps and edit their settings; changes stay in this demo and reset when you leave:

You don't need to rent a generic bot — connect your own and let it enforce your rules:

1. Connect your Discord bot to Noria (paste your bot token — it stays encrypted). Give it Manage Messages and Moderate Members permissions.
2. Open the editor and add a Discord — Message trigger.
3. Add a Condition that checks the message content against your rule — for example, "contains discord.gg/".
4. On the match branch, add a Delete Message action, then an optional Send Message (a DM or channel warning) and a Timeout Member action.
5. Click Activate. Every new message is now checked automatically.

The fastest start is the Discord Auto-Moderation template — it opens pre-wired so you only edit the word list and the channel.

Make it your own#

• Whitelist your mods — add a condition that skips the rule if the author has a moderator role, so staff aren't caught by their own filters.
• Log every action — send a copy of each deletion to a private #mod-log channel with the user, the message, and the rule that fired.
• Combine rules — an invite-link filter and a mention-spam guard can run as separate workflows on the same bot; they don't conflict.
• Tune the escalation — read the triggers and actions guide to add timeouts and role changes to the ladder.

That's a self-cleaning server — running on your own bot, with rules only you control.