Dafeiyu Cleaner

Dafeiyu Cleaner: Browser extension that identifies and hides AI-driven bot accounts in Bilibili comment sections using offline rules and DeepSeek API.

Dafeiyu Cleaner is a free open-source browser extension designed to identify, label, and hide AI-driven bot accounts and agent-driven characters in Bilibili comment sections and user profile pages. It features an interactive animated character named whale-girl that provides visual indicators, animations, and cleaning tools to manage suspicious bot accounts. The extension operates primarily offline using heuristic rules that evaluate account names, signatures, avatars, and comment patterns, while offering optional precise judgment via the DeepSeek API. Users can customize detection strictness, use a minimalist mode to quietly hide bot comments without animations, and manage whitelists and ban lists through a dedicated settings panel. All actions are performed locally in the user's browser without modifying remote data, calling write APIs, or reading cookies.

Dafeiyu Cleaner at a glance

Best for: Software engineer, Product manager
Runs on: Chrome, Edge, Firefox, Browser extension
Pricing: Free and open source
Released: October 2026
Category: AI productivity tool
Website: github.com/liyupi/dafeiyu-cleaner

Key features

Identifies AI bot accounts in Bilibili comment sections
Provides offline heuristic rules and optional DeepSeek API judgment
Displays animated whale-girl character with interactive weapons and cleanup actions
Generates inspection reports on user profile pages
Includes a minimalist mode to silently hide bot comments
Hides comments that mention or tag suspected bot accounts
Maintains local ban lists and white lists with export and import functions

Use it for

Cleaning automated AI bot comments from Bilibili video comment sections
Auditing Bilibili user profile pages for automated bot activity
Hiding repetitive AI-generated text and desk pet comments
Managing local blocklists of suspicious accounts

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