Introduction

ChatZilla (@ChatzillaBot) is a moderation bot for Telegram groups. You add it to a group as an administrator, choose the rules in its mini app, and from then on it checks every new message and every new member against those rules.

What it does

• New members. Greets them with your welcome message, asks them to pass a check (a button, a choice of buttons, a math problem, a CAPTCHA picture or a subscription to your channel) and, in groups with join requests, screens applicants before anyone is let in. See Welcome messages, User verification and Join requests.
• Filters. Removes the media types, links, forwards, bot commands, words and languages you don't allow. See Media and message filters, Word filters and Language filter.
• Anti-spam. Counts every filter hit and bans a member who collects too many in a set time. See Anti-spam.
• Community tools. Automatic replies to words and phrases, karma with a top 10 rating, and your own wording for every bot message. See Triggers, Karma and Bot messages.
• Control. Day-by-day statistics, an event log of every action, and access for your team. See Statistics and logs.

Each tool starts switched off or permissive, and every group you add keeps its own settings.

Where the settings live

Everything is configured in the bot's mini app: open @ChatzillaBot, press Manage chats and pick the group. In the group itself the bot only applies your rules; the one command members use there is /rating (see Commands).

What it costs

Nothing. ChatZilla has no paid plan: every feature on this site works in every group. See Plans.