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Nightfall for ChatGPT Chrome Extension

Best for companies protecting sensitive data in AI prompts and emails.

Checked 4 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Nightfall for ChatGPT Chrome Extension

At a glance

Starts at $19 per month, Includes basic AI prompt protection and email encryption features.
Free tier No
Platforms Web (Chrome extension), macOS, Windows
Best for Companies protecting sensitive data
Not for Small businesses with limited budgets

3.9 out of 5

Scored by Alex after real use

Our verdict

Nightfall AI prevents sensitive information exposure in ChatGPT and emails. It suits companies needing real-time risk mitigation but may be overkill for smaller organizations.

✓What it does well

Real-Time ProtectionPrevents sensitive information from being submitted into AI prompts in real time.
Industry-First Email EncryptionAutomatically encrypts sensitive data in emails and attachments for secure sharing.
Comprehensive Data LineageTracks the source of files to identify corporate versus personal uploads.

✕Where it falls short

Manual Redaction NeededRequires manual review before submitting sensitive data in AI prompts.
Limited Endpoint ProtectionDoes not protect against data exfiltration beyond SaaS and browser plugins.
Additional Costs for Premium FeaturesCharges extra for features like custom policies and deep learning models.

Key features

AI-Powered MonitoringAutomatically redacts sensitive data before submission to AI applications.
Comprehensive ComplianceEnsures compliance with various industry regulations like HIPAA and FERPA.
Email Encryption IntegrationAutomatically encrypts sensitive data in emails for secure sharing.
Deep Learning ModelsEnhances accuracy in data redaction.

Questions about Nightfall for ChatGPT Chrome Extension

What does Nightfall for ChatGPT Chrome Extension do?

Nightfall for ChatGPT Chrome Extension prevents sensitive information from being submitted into AI prompts in real time. It also automatically encrypts sensitive data in emails and attachments for secure sharing, and tracks the source of files to tell corporate uploads apart from personal ones.

How much does Nightfall for ChatGPT Chrome Extension cost?

Nightfall for ChatGPT Chrome Extension has no free tier. The Monthly Plan costs $19 and is aimed at small teams, with basic AI prompt protection and email encryption. The Annual Plan costs $180, billed annually. The reviewer notes that features like custom policies and deep learning models cost extra.

Does Nightfall for ChatGPT Chrome Extension help with HIPAA compliance?

Yes. The vendor says Nightfall for ChatGPT Chrome Extension ensures compliance with various industry regulations, including HIPAA and FERPA. Toolio lists it as best for companies protecting sensitive data, and the reviewer says it suits companies that need real-time risk mitigation.

What are the limits of Nightfall for ChatGPT Chrome Extension?

The reviewer says Nightfall for ChatGPT Chrome Extension does not protect against data exfiltration beyond SaaS and browser plugins. Premium features such as custom policies cost extra, and it may be overkill for smaller organizations. Toolio lists it as not for small businesses with limited budgets.

Which platforms does Nightfall for ChatGPT Chrome Extension run on?

Nightfall for ChatGPT Chrome Extension runs on the web as a Chrome extension, and on macOS and Windows. It holds a Toolio score of 3.9 out of 5, given by Alex after real use on 4 Oct 2026. Alternatives Toolio lists include Qwiet AI and GetGPT.

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