Clotr

Clotr is a browser extension that warns users before sending sensitive data to AI chats.

Clotr is a browser extension that warns you before you send a password, a key, or a personal detail to an AI chat. It runs entirely on your computer, meaning there is no AI inside, no network connection, and no accounts to manage. The software is free and open source, allowing users to verify code or rebuild from tags. It installs by unzipping and loading unpacked in the browser. Developers can also verify installations using command line tools and provenance checks.

Clotr at a glance

Best for: Software engineer
Runs on: Chrome extension
Pricing: Free
Released: October 2026
Category: AI productivity tool
Website: github.com/clotr-app/clotr

Key features

Warns before sending passwords to AI chats
Detects keys and personal details
Runs locally on your computer
Contains no AI inside
Operates without a network
Requires no accounts
Open source codebase

Use it for

Preventing accidental transmission of passwords to AI chats
Blocking personal details from AI prompts
Protecting API keys during AI usage

Alternatives to Clotr

Clutterstrike — Provides immediate validation of suspicious digital communications.
Jab — Runs locally in the browser in two milliseconds with no network requests.
Clai — Query twelve models and local Ollama directly from your terminal using unix pipes.
Ontor.ai — On-device analysis with optional cloud backup.
Claudian — Turns an Obsidian vault into a functional directory for AI agents.
Nuvrail — Stages every AI agent email write and send for human sign-off before reaching the mail server.
Boltbar — Access AI models from any app with a keyboard shortcut and an agent mode.
DataAnonymiser — Processes data locally on your device to keep confidential information private.
Shobr — Uses your authenticated browser to scrape and apply without detection.
Smart Blur — It runs entirely on-device with local AI and requires no account to protect data.
Klar — Runs fully on the Mac without sending messages to the cloud.
AI Newtab — Generates a personalized daily homepage using browsing history and Claude.

All Clotr alternatives