Verified Secure Tool

Local .env & Secret Token Scanner

100% Local & Private

Client-side static analysis tool to detect AWS keys, OAuth tokens, private keys, database credentials, and high-entropy secrets without remote uploads.

Zero-Knowledge Guarantee: All regex matching, entropy calculations, and git diff parsers execute entirely in your browser memory. No code or credentials are ever transmitted over the network or saved to persistent storage.

Shortcuts: Ctrl+S to scan

Target Configuration

Target: .env.production22 lines • 1.2 KB

Security Audit Posture

Heuristic credential and entropy risk assessment

Clean / Low Risk

Risk Score100/100

Critical / High0

Med / Low0

Active Leaks0

Paste configuration content or upload a file and click "Run Security Scan".

Professional In-Browser Secret Detection & Hardening Utility

Hardcoded credentials, leaked environment files, and committed cloud keys remain one of the most widespread initial access vectors for security breaches. ToolLok's Local .env & Secret Token Scanner enables developers, security researchers, and DevOps engineers to perform fast static secret detection directly within browser memory. Explore our complementary Cybersecurity Tools and Developer Tools to secure your software delivery pipelines.

Detection Capabilities

Multi-Cloud & SaaS Coverage: Scans for AWS IAM keys, Stripe secret tokens, Slack webhooks, Google API keys, GitHub PATs, and GitLab tokens.
Shannon Entropy Calculations: Evaluates mathematical randomness (bits per character) to flag undocumented or custom API keys that bypass static regex signatures.
Git Diff Addition Tracking: Pinpoints credentials introduced in new commit lines (prefixed with +) to speed up code reviews.
Zero Server Transmission: Built using client-side execution to ensure proprietary source code and tokens never touch an external server.

Frequently Asked Questions

Is my code or .env file uploaded to any server?

No. All pattern matching, entropy analysis, and report generation take place strictly within your local browser memory. No network requests are made with your file content.

How does the scanner differentiate real secrets from placeholders?

The engine cross-references detected strings against common placeholder dictionaries (e.g. example, your-token, changeme) and evaluates Shannon entropy to lower the confidence and severity of non-sensitive test strings.

How to use Local .env & Secret Token Scanner

1Select your file format (.env, JSON, YAML, Git Diff) or drag and drop a configuration file into the editor.
2Click 'Run Security Scan' (or press Ctrl+S) to inspect text using verified signatures and Shannon entropy checks.
3Review detected credentials categorized by severity, line number, confidence score, and calculated entropy.
4Export sanitized compliance reports in JSON, CSV, or Markdown format to assist with credential rotation.

Professional In-Browser Secret Detection & Hardening Utility

Detection Capabilities

Multi-Cloud & SaaS Coverage: Scans for AWS IAM keys, Stripe secret tokens, Slack webhooks, Google API keys, GitHub PATs, and GitLab tokens.

Shannon Entropy Calculations: Evaluates mathematical randomness (bits per character) to flag undocumented or custom API keys that bypass static regex signatures.

Git Diff Addition Tracking: Pinpoints credentials introduced in new commit lines (prefixed with +) to speed up code reviews.

Zero Server Transmission: Built using client-side execution to ensure proprietary source code and tokens never touch an external server.

Frequently Asked Questions

Is my code or .env file uploaded to any server?

No. All pattern matching, entropy analysis, and report generation take place strictly within your local browser memory. No network requests are made with your file content.