Anonymat

Local Text Anonymizer

Description

Local Text Anonymizer fills a gap for professional environments where the use of AI tools for text translation, correction, or improvement is severely limited by data protection regulations.
This lightweight, browser-based tool enables semi-automated anonymization of sensitive text, making it safe to use with external AI APIs — and just as easily allows re-identification of the text afterward.

The tool runs as a single HTML file directly in the browser on almost any office machine.
A simple, clean user interface ensures anonymization can be done with minimal effort and time.

Important: This is a partial automation tool. Final responsibility for proper anonymization remains with the user.
Detection is intentionally simple and purely pattern-based. Expect incomplete and sometimes incorrect matches — this is a helper for local pre-processing, not a guaranteed anonymization service.

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Key Features

• Detects and anonymizes:
  • Names
  • Email addresses
  • Phone numbers
  • IBANs
• Fully local execution (no data leaves your device)
• GDPR-compliant workflow

  GDPR (General Data Protection Regulation) is an EU law enforcing strict privacy and data protection standards.

• Easy deanonymization for re-importing edited texts
• Designed for professional use cases in regulated environments
• Zero installation: runs as a single file in any modern browser
• Minimal, distraction-free interface

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Example: Anonymize Before Using AI

1. Original text:
   Please contact John Doe at +1 555 123 4567 or john.doe@example.com for more information.
2. In Anonymat, click Anonymize → for example:
   Please contact [Name] at [Number] or [Email] for more information.
3. Send this anonymized sentence to an AI system (e.g. for translation or rewriting).
4. Paste the AI output back into Anonymat and click Deanonymize to restore the original name, phone number, and email locally.

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Use Cases

• Anonymize internal or client texts before sending them to AI tools for translation, correction, or summarization
• Temporarily remove personal identifiers from reports or documentation for external review
• Prepare text content for any scenario where privacy must be ensured

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Why GDPR-compliant?

All processing happens in your browser, offline, without external servers.
This ensures that the tool can be used within GDPR-regulated environments and respects strict corporate privacy policies.

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How It Works

1. Download the file dist/anonymat-<version>.html and open the HTML file in your browser.
2. Paste or type the text.
3. Click Anonymize — detected personal data will be replaced by placeholders.
4. Edit or process the anonymized text in external tools.
5. Paste the processed text back into the tool and click Deanonymize to restore the original data.

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Limitations

• The tool provides semi-automated anonymization;
• Complex text structures or unusual data formats might not be detected automatically.
• The final responsibility for checking and verifying the anonymized text lies with the user.

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Browser Support & Privacy

• Requires a modern browser with ES2018+ regex support (lookbehind, Unicode classes). Tested on recent Chrome/Edge/Firefox; Safari 16+ recommended.
• Everything runs locally; no network requests are made. The app stores language preferences in a short-lived AppConfig cookie and sets no telemetry.

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Contributing

Suggestions and pull requests are welcome!
Please open an issue before making significant changes.

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License

GPL V.3.0