Chrome Extension · Zero Dependencies

Save chats, build prompt libraries, switch personas, enforce guardrails, and more — all running 100% locally in your browser.

What’s Inside

Twelve features, zero compromises.

Save & Organize Chats

Never lose a conversation. One-click save, instant search, inline rename — all stored locally.

Prompt Snippets

Save frequently used prompts as reusable snippets. Insert with a single click. Stop rewriting.

Personas

Create custom system instructions and switch between them on the fly. One-Shot Mode included.

Guardrails

Define behavioral rules injected into every prompt. Multiple active simultaneously, independently toggleable.

Chat Fold

Injected prefixes collapse into compact accordion badges. Click to expand. Stay readable.

Context Questions

Smart follow-up question suggestions based on your conversation context and detected language.

Sidebar Toggles

Hide or show the chat history sidebar, templates, and ad banners with simple toggle switches.

Floating Actions

Quick-access FAB menu for personas, guardrails, snippets, rename & save. Collapses on mobile.

Custom Greeting

Personalize the Z.ai greeting with your own name. Click to edit, blur to save.

Dark Mode

Every component fully supports light and dark themes. Auto-matches the active Z.ai theme.

Data Manager

Export and import all your Zenhance data — saved chats, personas, guardrails, snippets — as a single file.

Philosophy

Your data never
leaves your machine.

Zero cloud. Zero accounts. Zero tracking. Zenhance stores everything on browser — your preferences, saved chats, personas, and snippets live on your device only.

Pricing

Free. Forever.

No tiers. No trials. No catch.

  • Save & organize unlimited chats
  • Prompt snippet library
  • Custom personas & One-Shot Mode
  • Guardrails with multi-rule support
  • Chat fold & context questions
  • Sidebar toggles & floating actions
  • Custom greeting & dark mode
  • Data export & import
  • Zero data collection, always
  • All future updates, included

If Zenhance has been helpful, a small tip helps keep the late-night code sessions fueled. Only if you want to — no expectations, ever.

Legal

Privacy Policy

Overview

Zenhance is a browser extension that enhances the Z.ai chat interface. This policy explains what data we handle and how.

Data Collection

Zenhance does not collect, transmit, or share any personal data. The extension operates entirely within your browser.

Local Storage

The extension uses the browser’s built-in chrome.storage API to save your preferences and settings on your device only. This data:

Permissions

Only one permission is requested: storage — used exclusively to save user preferences locally. Zenhance does not access browsing history, tabs, cookies, or any data outside the Z.ai page.

Scope of Operation

Zenhance runs exclusively on https://chat.z.ai/* and *://z.ai/*. It does not interact with any other websites or services.

Third-Party Services

Zenhance does not integrate with, load content from, or communicate with any third-party services, analytics platforms, or advertising networks.

Children’s Privacy

Zenhance does not knowingly collect data from anyone, including children under 13.

Changes

If future updates change how data is handled, this policy will be updated accordingly. Continued use after changes constitutes acceptance of the revised policy.

Last updated: April 25, 2026