Is my transcript data safe?

Yes, 100% safe. All processing happens locally in your browser. Your transcripts never leave your device. No data is transmitted to servers, stored, or tracked.

What types of PII does Redact detect?

Redact detects names, emails, phone numbers, locations, organizations, Social Security Numbers, credit card numbers, and dates of birth using a combination of ML (BERT model) and smart regex patterns.

Can I use redacted transcripts with ChatGPT and Claude?

Yes, that is the primary use case. Redact prepares interview transcripts for AI analysis by removing PII, making them safe to share with ChatGPT, Claude, NotebookLM, or other AI tools.

What file formats are supported?

Redact supports .txt (plain text), .vtt (video captions), and .docx (Word documents) files up to 1MB in size.

How long does redaction take?

5-15 seconds for typical interviews with WebGPU acceleration. First-time visitors may experience a model download, but subsequent redactions are instant.

Is Redact GDPR and HIPAA compliant?

Since all processing happens locally with no data transmission or storage, Redact helps maintain GDPR and HIPAA compliance by ensuring sensitive data never leaves your control.

Redact - Privacy-First Transcript Redaction

Hi, I'm Brian, a Fractional Head of Research & AI Builder who's deep diving into AI by building practical tools.

I built Redact to solve a problem I kept running into: manually scrubbing PII from user interview transcripts before sharing them with ChatGPT, Claude, or NotebookLM to help with analysis. It was tedious, error-prone, and slowing down my client work.

Plus, I wanted an excuse to learn Claude Code (officially addicted now).

How it works

100% local processing using a BERT ML model trained for NER (Named Entity Recognition) + smart regex patterns, powered by Transformers.js
No data leaves your browser - processing is all done locally using JavaScript, ML model is downloaded to your local memory, no data is sent to any server
Your files are never uploaded, stored, or transmitted anywhere - they stay on your device
Supports .txt, .vtt, and .docx files up to 1MB
Redacts names, emails, phone numbers, locations, organizations, Social Security Numbers, credit card numbers (with validation), and dates of birth automatically
Export redacted transcripts as Text, Markdown, or Word formats, with optional line numbers

How you can help

I made this for myself, but I think it's helpful for the broader community. It'd be hugely appreciated if you tried it out and let me know what's missing.

Found a bug? Have an idea?and help make this better for everyone.

Want updates on new Redact functionality?.