Security & Privacy Sanitizer100% Client-Side • Zero Server Leakage

Markdown PII & Secret Redactor

Safely scrub sensitive credentials, API keys (OpenAI, GitHub, AWS), emails, phone numbers, IP addresses, and credit card numbers from Markdown docs before sharing publicly.

8 Secrets Scrubbed

Active Scrubbers:API Keys & Tokens (OpenAI, GitHub, AWS)Email AddressesIPv4 AddressesPhone NumbersCredit Card Numbers

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Raw Markdown with Sensitive Data

Input: 727 charactersRaw text

Sanitized Safe Output8 items redacted

# Incident Post-Mortem Report: 2026-08-14

## Executive Summary
On August 14th, an unauthorized debug log was generated containing production environment variables.

### Incident Details
- **Reported By**: Engineer Alice at [REDACTED_EMAIL] (Direct Phone: +[REDACTED_PHONE])
- **Originating Server IP**: [REDACTED_IP]
- **Internal Bastion Host**: [REDACTED_IP]

### Compromised Credentials in Logs:
```bash
# Exposed API credentials
OPENAI_API_KEY=[REDACTED_API_KEY]
GITHUB_TOKEN=[REDACTED_API_KEY]
AWS_ACCESS_KEY_ID=[REDACTED_API_KEY]
TEST_CARD_NUMBER=[REDACTED_CARD]
```

> Please sanitize this entire post-mortem before publishing to our public GitHub status repository!

Safe for public GitHub repositoriesZero server upload guarantee

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Complete Guide & Overview

Redact API Keys, PII & Secrets from Markdown Online

Cleanse sensitive information from Markdown documents, server logs, incident post-mortems, and technical tutorials before publishing to GitHub or sharing with clients.

How to Use the Markdown Redactor

Paste Sensitive Markdown

Input your post-mortem, application log, or configuration guide into the editor.

Configure Scrubbing Rules

Select which sensitive data types (API keys, emails, IPs, phones) should be replaced with tags.

Export Clean Markdown

Copy the sanitized text or download the safe .md file ready for public release.

Key Features & Capabilities

Pattern Matching for Secrets: Detects and scrubs OpenAI keys, GitHub personal access tokens, and AWS access keys.

PII Scrubbing: Masks email addresses, international phone numbers, IP addresses, and credit card numbers.

Granular Toggles: Enable or disable specific redactor filters depending on your compliance requirements.

Guaranteed Zero Data Leakage: All regex execution occurs directly in your local browser JavaScript runtime.

One-Click Copy & Export: Save sanitized documents directly as .md files for immediate public commit.

Pro Tips & Best Practices

•Always run this redactor on incident post-mortems and pull request discussions before making internal repositories public.

Frequently Asked Questions

Is it safe to paste real API keys into this tool?

Yes! This tool runs 100% client-side inside your browser sandbox. Your browser never sends the text across the network.

What format are redacted items replaced with?

Items are replaced with explicit descriptive markers like [REDACTED_API_KEY], [REDACTED_EMAIL], and [REDACTED_IP] so readers know data was sanitized intentionally.

Does it scrub keys inside code blocks?

Yes! It scrubs throughout the entire document, including comments, code blocks, and inline code fences.

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