Cybersecurity

Log Redaction at Scale

Automatically detect and redact sensitive information like emails, phone numbers, tokens, and PII from log files.

1-2 min

Beginner

Runs locally

All Cybersecurity tools

10000ms CPU256MB RAM64KB in · 5120KB outEducational, no sensitive data

Mode

Redaction style

Strict mode is more aggressive and can redact more.

Log text

Do not paste real customer data. This runs locally in your browser.

Export

Download results as PDF, CSV, or JSON.

Run the tool to enable exports.

Learn About Log Redaction

What is Log Redaction?

Log redaction is the process of removing or masking sensitive information from log files before sharing, analysing, or storing them. It protects PII, credentials, and other confidential data from unauthorised access.

Why Redact Logs?

Logs often contain sensitive data that shouldn't be shared with third parties, stored long-term, or exposed in debugging sessions. Redaction helps meet compliance requirements (GDPR, HIPAA) and reduces data breach risk.

Common Patterns Detected

Email addresses - user@example.com
Phone numbers - +1-555-123-4567
UUIDs - Unique identifiers
JWT tokens - Authentication credentials
URLs - May contain sensitive params

Redaction Modes

Balanced - Standard patterns, fewer false positives
Strict - Aggressive detection including tokens and card numbers

All processing happens locally in your browser. No data is sent to any server.

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