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Client-Side Privacy

AI Text Redactor (Sanitize Sensitive Information & PII)

Safely sanitize, mask, and redact sensitive personal information (PII), credentials, payment details, and private identifiers before sharing documents, submitting prompts to AI models, or publishing text online.

Runs 100% locally in your browser using high-speed deterministic pattern detection, Luhn-verified payment card checking, and customizable regex filters. Your text is never sent to any remote server.

0 words•0 characters
Detection Categories
Redaction Masking Style
100% Client-Side Processing. No text is ever uploaded or stored.
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How It Works (Step-by-Step)

1

1. Paste Your Text

Paste or type any document, log snippet, or prompt containing confidential information into the input field.

2

2. Select Detection Categories

Choose which data types to scan—including emails, phone numbers, credit cards, IPv4 addresses, API keys, URLs, or custom regex.

3

3. Review & Configure Masking

Inspect detected matches in the review table, toggle individual items on or off, and choose between block masking ([REDACTED]) or descriptive tokens ([EMAIL_1], [PHONE_1]).

4

4. Copy or Download Sanitized Text

Copy the clean, sanitized text directly to your clipboard or download it as a plain .txt file with one click.

Key Features & Advantages

100% Client-Side Privacy

All detection and text replacement execute strictly inside your browser memory. No data is ever transmitted over the network.

Luhn Algorithm Card Validation

Validates 13-19 digit card numbers using the standard Luhn checksum algorithm to prevent false positives on general numbers.

Flexible Redaction Formats

Switch between uniform [REDACTED] blocks and contextual tokens like [EMAIL_1] or [API_KEY_1] to preserve text structure.

Custom Regex Pattern Support

Add your own custom regular expressions to automatically mask proprietary IDs, ticket numbers, or internal account codes.

Granular Match Review

Inspect every single match individually with line context before applying redactions to ensure accurate results.

Instant Zero-Latency Execution

Processes thousands of words in milliseconds without waiting for server responses or cloud API queues.

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Frequently Asked Questions

How does the AI Text Redactor work?
The redactor scans your text locally using a comprehensive suite of high-confidence regular expressions, entropy heuristics for API secrets, and mathematical checksums (such as Luhn for credit cards). It highlights all matching sensitive tokens and replaces them according to your selected format.
Is my text uploaded to any remote server or AI provider?
No. The entire process runs strictly inside your local web browser using client-side JavaScript. Your text never leaves your device and is permanently cleared when you reset the tool.
Does this tool guarantee detection of all personal data?
No automated pattern-matching tool can guarantee 100% detection of all sensitive content. Free-form names, ambiguous numbers, or uncommon address formats may not be identified. Always review the output before sharing.
What is the difference between Block and Descriptive redaction tokens?
Block format replaces every match with a generic label like [REDACTED]. Descriptive tokens replace matches with numbered category placeholders (e.g. [EMAIL_1], [EMAIL_2], [PHONE_1]), making it easy to understand the context of the redacted text.
Can I redact custom identifiers like employee IDs or project codes?
Yes. Enable the "Custom Regex" category and enter your specific regular expression pattern (for example, EMP-[0-9]{5}) to detect and mask specialized patterns.

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