Data Redaction

100% Local Processing. Your data never leaves your browser.

System rules

Source

Redacted result

Custom K–V rules

Data is stored only in this browser. Export a backup before clearing browser data or switching browsers or devices. Private browsing or automatic cleanup may remove it.

No matches does not mean the text is safe to share.

About this tool

Redact sensitive data locally

What does this tool do?

Redact passwords, API keys, IDs, payment data, contact details and IPs from text, logs and configs in your browser. Custom replacements come first. Preview masking as you type, or create reversible tokens with exportable maps.

How to use it

Paste text, configuration or API data and identify sensitive fields.
Add custom K–V rules where needed and check replacements for missed or incorrectly redacted data.
Copy or download the result. Mappings and backups may contain sensitive data; keep them separate.

Data handling and limits

Source: up to 1 Mi UTF-16 units. Output and restoration: up to 4 Mi. Rule-based detection can miss or misidentify data. Stars are irreversible; tokens require their map. Local data is unencrypted. Export a backup before clearing or switching browsers.

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Preview

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