As of May 6, 2026, DeepSeek does not list an official Chrome extension among its official products. The official DeepSeek website currently points users to DeepSeek Chat, DeepSeek App, DeepSeek Platform, API Pricing, and Service Status, but it does not list a Chrome extension as an official product.

That does not mean you cannot use DeepSeek in Chrome. You can still access DeepSeek through the official web chat, the official mobile app, or the developer API. However, any DeepSeek Chrome Extension you find in the Chrome Web Store should be treated as a third-party tool unless DeepSeek clearly confirms it as official.

This guide explains the current official status, why DeepSeek-related extensions exist, how to verify whether an extension is legitimate, and what to check before installing any AI browser extension.

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Is There an Official DeepSeek Chrome Extension?

At the time of writing, there is no confirmed official DeepSeek Chrome extension listed by DeepSeek.

The most important source to check is the official DeepSeek website. Its product section lists DeepSeek App, DeepSeek Chat, DeepSeek Platform, API Pricing, and Service Status. It does not list a Chrome extension, browser extension, Chrome Web Store listing, or official DeepSeek extension for Chrome.

DeepSeek’s official app announcement also tells users to download only from official channels and says users should search for “DeepSeek” in their app store or visit the official website for direct links. The announcement refers to the official app experience, not a Chrome Web Store extension.

So the safest answer is:

As of May 6, 2026, DeepSeek does not appear to offer an official Chrome extension. DeepSeek-related Chrome Web Store extensions should be considered third-party tools unless DeepSeek officially confirms otherwise.

This distinction matters because many users search for “DeepSeek Chrome Extension” expecting an official product. In practice, some extensions use the DeepSeek name, connect to the DeepSeek API, or provide a browser sidebar for AI assistance, but that does not automatically make them official.

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Why Are There DeepSeek Extensions in the Chrome Web Store?

There are DeepSeek-related extensions in the Chrome Web Store because third-party developers can build browser tools that interact with DeepSeek in different ways.

Some of these tools may:

• Let users enter a DeepSeek API key.
• Send selected webpage text to a DeepSeek model.
• Open a sidebar assistant inside Chrome.
• Summarize webpage content.
• Provide quick prompts for writing, coding, or research.
• Offer shortcut-based access to DeepSeek-style responses.

For example, one Chrome Web Store listing named DeepSeek AI describes itself as a browser extension and explicitly says it is “unrelated to DeepSeek official.” The same listing says users can enter their own API key and select webpage text to receive AI-powered responses.

That example is useful because it shows the exact issue users need to understand: a Chrome extension can use the DeepSeek name or connect to DeepSeek-related functionality without being an official DeepSeek product.

The presence of “DeepSeek” in an extension name is not enough. The developer identity, official DeepSeek links, privacy policy, permission requests, and source of announcement all matter.

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How to Verify If a DeepSeek Chrome Extension Is Official

Before installing any DeepSeek extension for Chrome, use this checklist.

1. Is it linked from the official DeepSeek website?

Start with DeepSeek’s official website. If DeepSeek releases an official Chrome extension, the safest expectation is that it would be linked from an official DeepSeek product page, announcement, app download page, documentation page, or support page.

As of May 6, 2026, the official DeepSeek website lists official product destinations for app, chat, platform/API, pricing, and service status, but not a Chrome extension.

2. Is it announced in DeepSeek’s official docs or news?

DeepSeek’s API documentation has a news section and official documentation pages for API features, model details, pricing, and integrations. If an official DeepSeek browser extension existed, an announcement in those official channels would be strong evidence. The official API documentation currently focuses on API usage, model pricing, token usage, and developer resources rather than an official Chrome extension.

3. Is the Chrome Web Store developer clearly DeepSeek?

Check the Offered by and Developer fields in the Chrome Web Store listing. If the developer is an individual, unknown company, unrelated domain, or separate project, do not assume it is official.

In one visible Chrome Web Store example, the listing says it is offered by “Liuzx” and explicitly describes the extension as unrelated to DeepSeek official.

4. Does the extension page say it is unofficial?

Some responsible third-party developers clearly state that their extension is not affiliated with DeepSeek. That is a good transparency sign, but it also means the tool should not be described as official.

5. Does the privacy policy belong to DeepSeek?

A real official DeepSeek extension should reasonably be expected to use DeepSeek-controlled domains, official DeepSeek support channels, and an official DeepSeek privacy policy. If the privacy policy belongs to a personal GitHub page, a third-party project, or an unrelated domain, treat the extension as third-party.

6. Does DeepSeek link back to the Chrome Web Store page?

A Chrome Web Store listing alone is not enough. Look for a link from DeepSeek’s official website or documentation back to that exact Chrome Web Store page.

7. Does the extension ask for sensitive permissions?

Even if an extension is useful, review what it can access. AI browser extensions often need access to selected text, webpage content, or user inputs. That can create privacy risks, especially when using the tool on email, banking, work dashboards, private documents, or client websites.

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DeepSeek Chrome Extension vs Official DeepSeek Web Chat

The safest way to use DeepSeek in Chrome is usually to open the official DeepSeek web chat directly in the browser. The official DeepSeek website links to DeepSeek Chat as one of its product destinations.

Here is a practical comparison:

Feature	Third-Party DeepSeek Chrome Extension	Official DeepSeek Web Chat
Official status	Not official unless confirmed by DeepSeek	Official DeepSeek product destination
Browser permissions	May require site access or webpage access	No extension permissions required
API key exposure	Some extensions ask users to enter an API key	No third-party extension needs your API key
Convenience	Can provide sidebar, shortcuts, selected-text actions	Requires opening the chat page
Privacy risk	Depends on developer, permissions, and data handling	Uses DeepSeek’s official service directly
Best use case	Workflow convenience after careful review	Safest general browser access

The main advantage of a third-party DeepSeek browser extension is convenience. It may let you highlight text, summarize pages, or open an AI assistant without leaving the current tab.

The main disadvantage is trust. A browser extension may request permissions that give it access to webpage content or user data. Google’s Chrome Web Store Help says some extensions request permissions or data, and users should only approve extensions they trust.

For most users, especially anyone handling private, business, legal, financial, or client information, the official DeepSeek web chat is the safer starting point.

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Safe Ways to Use DeepSeek in Chrome Without an Official Extension

You do not need an official Chrome extension to use DeepSeek in Chrome. Here are safer options.

1. Use the official DeepSeek web chat

Open the official DeepSeek website and use the DeepSeek Chat link. This avoids installing third-party browser code and avoids giving an extension access to your websites, browser activity, or selected text.

This is the best option for most users who simply want to use DeepSeek in Chrome.

2. Use the official DeepSeek App where available

DeepSeek has an official app experience. The official app announcement tells users to download only from official channels to avoid being misled.

The Google Play listing for DeepSeek – AI Assistant describes it as DeepSeek’s official AI assistant and lists DeepSeek as the developer.

3. Use the official DeepSeek API directly

Developers can use the official DeepSeek API through DeepSeek Platform and the API documentation. DeepSeek’s API docs include quick-start resources, token usage guidance, model pricing, and developer features.

This is the better option for developers who want controlled integration rather than relying on an unknown browser extension.

4. Use trusted development tools carefully

Some trusted development environments or AI tools may support DeepSeek-compatible API usage. This can be safer than using a random browser extension, especially if the tool has a strong reputation, clear privacy documentation, and local configuration controls.

Still, avoid entering API keys into tools you do not trust.

5. Avoid unknown extensions for sensitive work

Do not use unknown AI extensions on pages containing passwords, private documents, company data, customer information, payment details, legal files, health records, or confidential research.

Even if an extension is not malicious, unclear data handling can still create risk.

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Risks of Third-Party DeepSeek Chrome Extensions

A third-party DeepSeek AI Chrome extension can be useful, but it can also introduce risks.

Access to website content

Some AI extensions need webpage access to summarize or analyze selected text. That may be expected for the feature, but it also means the extension could process sensitive content.

Google’s Chrome help explains that some extensions can read and change site data, and Chrome lets users choose whether an extension can access the current site, specific sites, or all sites.

Broad browser permissions

Chrome’s developer documentation warns that broad host permissions such as access to all URLs can give extensions extensive access to a user’s web activity. Google’s documentation notes that extensions with broad access can collect browsing history, scrape data, harvest credentials, or exploit users in other ways if abused.

API key exposure

Some DeepSeek-related extensions ask users to enter their own API key. One Chrome Web Store listing says users can enter an API key to access DeepSeek models.

If you give an API key to a third-party extension, you are trusting that extension with a credential that may be connected to your usage and billing. Only do this if you understand how the key is stored, whether it is transmitted, and how to revoke it if needed.

Prompt and chat data exposure

If an extension sends your selected text, prompts, or webpage content to an external service, your data may leave the browser. That may be necessary for the feature, but it should be clearly explained in the extension’s privacy policy.

Misleading “official” wording

Some extensions use product names in ways that can confuse users. A title like “DeepSeek AI” or “DeepSeek Assistant” does not prove that the extension is official.

Unclear privacy policies

Google’s Chrome Web Store policies require extensions that handle personal or sensitive user data to post a privacy policy and handle user data securely, including secure transmission.

However, the existence of a privacy policy does not automatically mean the extension is safe. You still need to read what data is collected, why it is collected, where it is sent, and whether it is shared.

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When a Third-Party DeepSeek Extension Might Be Useful

A third-party DeepSeek browser extension may be useful for convenience-focused workflows, such as:

• Summarizing selected webpage text.
• Opening a floating AI sidebar.
• Sending highlighted text to the DeepSeek API.
• Formatting AI responses in Markdown.
• Copying code snippets quickly.
• Using keyboard shortcuts for faster research.
• Exporting or organizing conversations.

These features can save time. For example, a researcher may want to summarize a long article without copying text into a separate chat window. A developer may want quick code explanations while browsing documentation. A writer may want a sidebar assistant for outlines or rewrites.

But the important rule remains:

These are convenience tools, not official DeepSeek products unless DeepSeek confirms them through official channels.

Use third-party extensions only after checking the developer, permissions, privacy policy, data handling, update history, and whether the tool asks for your API key.

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What to Check Before Installing Any DeepSeek Browser Extension

Before installing any extension that claims to be a DeepSeek Chrome Extension, review the following checklist.

Developer identity

Who offers the extension? Is it DeepSeek, a verified DeepSeek entity, or a third-party developer?

Official confirmation

Can you find the exact extension linked from DeepSeek’s official website, app announcement, API docs, or official social channels?

Chrome Web Store details

Check the listing details carefully. Look at the update date, developer, support site, privacy policy, ratings, number of users, and user reviews.

Permission requests

Does the extension ask to read and change data on all websites? Does it need that access for its core feature? Can you limit access to specific sites?

Chrome lets users manage whether an extension can access the current site, specific sites, or all sites.

Data collection

Does the extension handle authentication information, website content, prompts, or personal data? Does the privacy section explain this clearly?

API key storage

If the extension asks for your DeepSeek API key, check where the key is stored. Ideally, the developer should explain whether the key is stored locally, encrypted, or transmitted to any server.

Privacy policy quality

A privacy policy should clearly explain what data is collected, how it is used, whether it is shared, and how users can contact the developer.

Source code availability

Open-source code can be a positive sign, but it is not a guarantee. The published Chrome Web Store version should match the code users can inspect.

Reviews and complaints

Read negative reviews, not just positive ones. Look for complaints about unexpected permissions, billing issues, suspicious behavior, broken features, or unclear data handling.

Use case

Ask whether you really need the extension. If your goal is simply to chat with DeepSeek, the official web chat is simpler and safer.

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Recommended Wording for Users

A careful and accurate summary would be:

If you want the safest official option, use DeepSeek Chat, DeepSeek App, or DeepSeek API from DeepSeek’s official website. If you install a Chrome extension using the DeepSeek name, treat it as a third-party tool unless DeepSeek officially confirms it. Review permissions, privacy practices, and API key handling before using it.

This wording avoids the biggest mistake: calling a third-party extension “official” without evidence.

For website owners, reviewers, and SEO writers, the same rule applies. Do not publish titles such as “Download the Official DeepSeek Chrome Extension” unless DeepSeek has officially announced one. A more accurate title is:

DeepSeek Chrome Extension: Is There an Official One?

That title matches the user’s search intent while staying factually safe.

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Final Verdict

There is currently no confirmed official DeepSeek Chrome Extension listed by DeepSeek as of May 6, 2026.

DeepSeek’s official channels point users to web chat, app access, platform/API access, pricing, and service status. Third-party Chrome Web Store extensions may offer DeepSeek-related functionality, but they should not be treated as official unless DeepSeek directly confirms them.

For most users, the safest way to use DeepSeek in Chrome is to open the official DeepSeek web chat. Developers should use the official API directly. Third-party extensions can be convenient, but they require extra caution because they may handle webpage content, API keys, prompts, or other sensitive data.

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FAQ