Code Snippet Redactor & PII Scrubber
Remove likely secrets and personal data from code snippets before sharing them with AI assistants, logs, documentation, or support tickets.
Scrubber
Results
Introduction
Sharing code with AI tools, support teams, or public documentation can accidentally expose secrets, personal data, or internal infrastructure details.
This tool helps you sanitize snippets locally before they leave your machine.
How it works
The tool applies pattern-based redaction rules to the text you provide. It replaces likely sensitive values with clearly labeled placeholders and reports how many replacements were made.
- No snippet data is sent to a server.
- Redaction happens entirely in your browser.
- Placeholders are ignored by generic secret detection.
- Manual review remains necessary.
How to use
- Paste the code, log, or documentation snippet.
- Select the redaction categories you want to apply.
- Click Redact snippet.
- Review the redacted output.
- Copy the result or the redaction report.
Practical example
A configuration object containing an API key, database URL, email address, and local path can be sanitized before being pasted into an AI prompt.
Use cases
- Preparing prompts for LLMs.
- Sharing stack traces with vendors.
- Publishing documentation examples.
- Creating public bug reports.
- Reviewing internal snippets before external use.
Best practices
- Use environment variables in examples instead of real values.
- Replace secrets with obvious placeholders.
- Remove entire lines when the value is not needed.
- Avoid pasting production credentials anywhere.
- Review redacted output before sharing.
Common mistakes
- Assuming automated scrubbing catches everything.
- Sharing encoded or hashed secrets without considering reversibility.
- Leaving usernames in local file paths.
- Forgetting sensitive query parameters in URLs.
- Redacting only the obvious key but leaving the value in logs.
Limitations
- Pattern matching cannot detect every possible secret format.
- Encoded values, split strings, and custom tokens may be missed.
- Phone number detection may produce false positives.
- Credit card detection uses basic pattern and Luhn checks.
- The tool does not replace formal data-loss prevention systems.
Browser compatibility
The tool works in current versions of major browsers using standard JavaScript string processing.
FAQ
Is my snippet uploaded?
No. The snippet is processed locally in your browser.
Is redaction guaranteed?
No. Automated redaction is heuristic. Always review the output before sharing sensitive material.
Can it redact multiline private keys?
Yes. PEM-style private key blocks are detected and replaced with a placeholder.
Should I still remove values manually?
Yes. For high-sensitivity content, manually removing unnecessary values is safer than relying only on automated redaction.