Prompt Bridge

Prompt Bridge is a Chrome extension that helps users carry AI conversation context across supported chat platforms. It is positioned as local-first, with context captured on demand and no need to restart a thread from scratch.

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Overview

Prompt Bridge is a Chrome extension for moving AI conversation context between supported chat platforms. Its stated purpose is to let users capture an existing conversation, keep that context portable, and continue work without rebuilding the thread manually.

The product is presented as free to use, with no sign-up required, and it works in Chrome, Edge, and Brave. The privacy policy also states that the extension is local-first: prompts, summaries, and AI context stay on the user’s device unless the user explicitly exports data or triggers an action that sends text to a configured AI provider.

Features

On-demand context capture

The extension reads AI conversation text from the DOM of supported sites when the user clicks Capture, rather than collecting conversation content passively.

Portable conversation history

It is designed to carry a full AI conversation context across major AI platforms so users can continue an exchange without starting over.

Local device storage

Conversation threads are stored in browser IndexedDB on the local device, while settings and API keys are stored locally in Chrome storage.

User-controlled summarisation

When the user explicitly triggers summarisation, the extension can send text only to the configured AI provider.

Multiple provider support for API keys

The privacy policy lists configurable providers including OpenAI, Anthropic, Google, DeepSeek, and xAI for summarisation workflows.

Local export and deletion controls

Users can export data, delete individual threads, clear all data, or remove the extension to delete stored content.

Use Cases

Continuing a long AI session
A user working across multiple chats can capture an existing thread and bring the context into another supported platform instead of retyping background information.
Switching between AI tools
Someone who compares answers across ChatGPT, Claude, Gemini, Grok, or DeepSeek can move conversation context as they change tools.
Keeping sensitive context on-device
Users who prefer local-first workflows can keep prompts and summaries on their own device unless they choose to export or summarise.
Managing reusable research threads
A person iterating on research, writing, or planning can preserve a thread locally and revisit it later without losing state.

Pros and Cons

Pros

Free to use.
No sign-up required.
Works in Chrome, Edge, and Brave.
Local-first storage keeps conversation data on the device by default.
Users have explicit controls for exporting, clearing, and deleting stored data.

Cons

The support page lists FAQs about browser and platform support, but the published site text does not provide detailed setup or workflow documentation.
Pricing information is not available on the site because the pricing page currently returns a 404.
The public pages do not give a detailed, itemized list of all supported integrations beyond the platforms named in the privacy policy and homepage copy.

FAQ

What is Prompt Bridge?

Prompt Bridge is a Chrome extension for capturing AI conversation context and carrying it between supported AI platforms.

Does Prompt Bridge store my conversations in the cloud?

No. The privacy policy says conversation threads stay on the local device, and the publisher states it operates no server for the extension.

Which AI platforms are mentioned in the source material?

The privacy policy names ChatGPT, Claude, Gemini, Grok, and DeepSeek as supported sites for capture, and it also lists OpenAI, Anthropic, Google, DeepSeek, and xAI as providers that can be configured for summarisation.

Which browsers are supported?

The homepage says Prompt Bridge works on Chrome, Edge, and Brave.

How do users remove their data?

The privacy policy says users can delete individual threads, clear all data from settings, export data, or uninstall the extension to remove stored information.

Quick Facts

Category: AI Chat
Platform: Chrome extension
Browser support: Chrome, Edge, Brave
Pricing: Listed as free on the homepage; the pricing page itself is unavailable
Data storage: Local-first, with conversation threads stored on the device
Source domain: promptbridge.co