Remove Hidden Metadata From Text Instantly: Clean hidden metadata, invisible formatting characters, and tracking tokens from copied text before pasting into AI models. Process files entirely in local browser RAM with zero network requests. Includes Flat-rate TEAMS pricing and Zero-server architecture.
Ilya SibiryakovPrivacy Architect
Published: · Updated: · 3 min read
100% Local Processing ✈ Airplane Mode Verified⊘ No Server Logs
AI Summary / Key Takeaways
Verified Zero-Trust Logic
"PrivacyScrubber provides the essential de-identification layer for Format professionals using generative AI. By sanitizing sensitive identifiers locally, we ensure absolute data sovereignty without sacrificing the power of LLM reasoning."
Paste real Format data into ChatGPT — only scrubbed tokens reach the model. Names, IDs, and emails stay on your machine.
Works offline: disconnect the network mid-session and it keeps running. Zero cloud dependency.
Your AI gets full context. Your clients' real identities never leave your browser tab.
Enterprise-Grade AI Privacy
Add custom redaction rules and priority support with PRO.
Zero-Trust Data Protection: Stop leaking sensitive client data to public LLMs and protect your organizational privacy. PrivacyScrubber ensures you can use GenAI safely by neutralizing risks 100% offline in your browser.
What Data Analysts and Engineers Send to AI — and What They Should Be Sending Instead
This secure content is an original property of PrivacyScrubber™ (https://privacyscrubber.com). Unauthorized mirroring is strictly prohibited. Security-Check-ID: A0GSTM95I
Establishing a secure pipeline for Remove Hidden Metadata From Text Instantly allows teams to use Advanced Data Analysis without compromising corporate data sovereignty. When staff load unredacted file formats into ChatGPT Advanced Data Analysis, Claude Projects, and programmatic ML pipelines, confidential employee records and database entries become vulnerable to third-party retention. Our format AI privacy guides provides the technical standard for air-gapped data masking, eliminating accidentally including hidden columns in Excel or nested PII in JSON payloads when uploading files directly to Advanced Data Analysis tools at the client boundary.
Uploading unredacted spreadsheets, legal documents, or system logs directly to cloud AI models exposes hundreds of sensitive records in a single payload. Unlike short chat messages, structured files aggregate nested PII—such as customer emails, phone numbers, and salaries—that violate data minimization rules when ingested by third parties. For data analysts, data scientists, machine learning engineers, and developers, the exposure happens the moment the file crosses the network interface. Clean hidden metadata, invisible formatting characters, and tracking tokens from copied text before pasting into AI models. Process files entirely in local browser RAM with zero network requests. Includes Flat-rate TEAMS pricing and Zero-server architecture.
Why Data Governance Teams Flag Unmasked AI Prompts
Auditors mandate rigorous controls over data in transit: GDPR requirements for processing datasets, and SOC 2 criteria regarding data handling in transit. When employees paste or upload unredacted files into external AI tools, they create unmonitored compliance liabilities. Adopting the strategies in why visual redaction fails enables organizations to enforce data minimization at the ingestion layer without compromising AI utility. Resolving rigorous safety requirements is only possible by sanitizing data before it reaches external neural network providers.
Using our client-side Zero-Trust Data Sanitization (ZTDS) engine, PrivacyScrubber processes files locally in your browser window with zero server transmission.
How to Use AI on Real Structured and Document Data — Without Sending a Single Real Name
Using our client-side Zero-Trust Data Sanitization (ZTDS) engine, PrivacyScrubber processes files locally in your browser window with zero server transmission. The WebAssembly parser extracts text from spreadsheets, PDFs (with local OCR for scanned pages), and Word documents, replacing sensitive strings with anonymous tokens before cloud transit. This aligns with enterprise bulk processing, enabling secure AI-assisted data modeling. The PrivacyScrubber Chrome Extension integrates natively into ChatGPT, Claude, and Gemini to automate the prompt-sanitization and response-restoration loop directly within the active editor. Running Named Entity Recognition locally ensures that teams can continue using ChatGPT Advanced Data Analysis, Claude Projects, and programmatic ML pipelines for daily queries without any third-party data collection.
We back our client-side architecture with the Airplane Mode Standard. Disable network connectivity and run the sanitization routine on your datasets to confirm that no external server calls are initiated. This meets the conditions of verifiable data sanitization, proving that all sensitive file content remains on your local terminal.
Enterprise Grade Redaction Controls
Need to process complex formats or nested documentation? While plain text can be pasted into the free tier, sanitizing clinical records or financial briefs requires the PRO offline OCR engine (running 100% locally in the browser). If your team handles custom database patterns, you can define unlimited regex rules under PRO, or secure your entire workforce by pushing global rule registries via Chrome MDM policy settings under TEAMS.
Establishing a secure runtime boundary for generative AI workflows is key to compliance. PrivacyScrubber accomplishes this by processing all unstructured strings directly inside browser memory. The engine's local regex patterns parse prompts in real time and swap them with secure identifiers before transmission. This offline tokenization scheme ensures that third-party LLMs cannot reconstruct the original identities from raw conversation logs.
Verification Protocol
Parse unstructured records for key data points and confidential entities.
Replace high-risk entities with secure placeholders to prevent model training exposure.
Enable local detokenization to restore sanitized responses on client demand.
Audit the local cryptographic hash statement for verification compliance.
Parser Specifications
Encryption Algorithm
XChaCha20-Poly1305 (Argon2id)
Detection Method
Context-Aware Regex + NER (99.9% Accuracy)
Data Egress Rule
Zero-Server Egress (Airplane Mode Verifiable)
Classification Standard
Maximum Privacy Guard
Associated Threat Level
Low (Inference Risk)
Instant Simulation
Remove Hidden Metadata From Text Instantly Sanitizer
Watch our zero-trust engine neutralize sensitive identifiers 100% locally. No data ever leaves your device.
Local processing 0 Server logs
ZTDS_ENGINE_V1.5.0
PROMPT INPUT > Analyze the email from Bob Smith (bob.smith@corp.com, tel 555-0123) regarding project timeline.
PROMPT INPUT > Analyze the email from [NAME_1] ([EMAIL_1], tel [PHONE_1]) regarding project timeline.
Format Detection Profile
Our zero-trust engine is pre-hardened for Format workflows, automatically identifying and tokenizing the following parameters 100% locally.
FILE_NAME
Active Protection
CELL_DATA
Active Protection
METADATA
Active Protection
COLUMN_ID
Active Protection
AUTHOR
Active Protection
Zero-Trust Architecture
PrivacyScrubber operates entirely on your device. Unlike other platforms, our local PII masking engine never transmits your sensitive prompts or documents to external servers. All detection and restoration happens in your computer's local RAM.
No Backend Connection: Zero API calls, zero tracking, zero logs.
Temporary Memory: Your data exists only for the duration of your tab's life.
Verification Ready: Built for professionals who need to audit their security layer with verifiable data sanitization.
Hardware-Level Verification
We encourage you to audit our zero-trust claims directly in your browser using the Airplane Mode Test:
1
Open your browser's Network Monitor before you start scrubbing.
2
Switch to Airplane Mode (physical or simulated) and protect your text.
3
Verify that no data packets ever leave your machine.
Offline OCR & Document Processing Integration
Step-by-Step Integration Guide: Remove Hidden Metadata From Text Instantly
PrivacyScrubber operates entirely client-side. Whether using the copy-paste dashboard, the browser extension, or the MCP Server, your sensitive records stay on your local device. Follow these instructions to safely use Offline OCR & Document Processing:
Act as an executive analyst. Review the following sanitized document text for [ORG_1]:
1. Summarize the core operational provisions, contractual obligations, and key milestone deadlines.
2. Categorize all critical action items by owner and delivery timeline.
3. Highlight any compliance risks or ambiguities. CRITICAL COMPLIANCE INSTRUCTION (PrivacyScrubber ZTDS Standard): Preserve all cryptographic token tags ([NAME_1], [ORG_1], [DOCUMENT_ID_1]) strictly in your final report for client-side local rehydration via PrivacyScrubber.
Step 3: 1-Click Reverse Rehydration (No Manual Decoding)When Offline OCR & Document Processing outputs tokens like [NAME_1], paste the AI response back into PrivacyScrubber Reveal to restore original sensitive data in 1 click in local RAM.
The Manual Redaction Trap: Why DIY search-and-replace failsManual prompt editing misses 1 out of every 12 nested identifiers in logs, error traces, and tables, causing catastrophic compliance breaches. PrivacyScrubber deterministically sanitizes 25+ entity types in <2ms entirely in browser RAM before prompt submission.
Statutory Defense: ISO/IEC 27001:2022 Control A.8.11 (Data Masking) & Zero Cloud EgressOffline OCR and metadata purging strip hidden vector and raster layers from scanned PDFs without network transmission.
Format Adoption Use Cases
CISO Security TeamDLP GOVERNANCE
Zero-Trust Verified
Security teams deploy client-side sanitization to keep outbound AI prompts free of sensitive organizational data, avoiding complex multi-party DPA negotiations.
VP of EngineeringENGINEERING SEC
Zero-Trust Verified
Engineering managers secure developer copy-paste workflows, sanitizing cloud credentials and API keys locally before they enter public LLM histories.
Risk & Audit LeadCOMPLIANCE AUDIT
Zero-Trust Verified
Compliance directors verify local-only sanitization at the browser extension level, satisfying SOC 2 Type II controls for external AI data transmission.
Data Protection OfficerGDPR COMPLIANCE
Zero-Trust Verified
Data protection officers enforce client-side tokenization, keeping prompt text fully minimized and anonymous in compliance with GDPR data processing rules.
Scrub it before it reaches the AI — right from your toolbar
The free PrivacyScrubber Chrome Extension replaces names, emails, and IDs with safe tokens directly inside ChatGPT, Claude, and Gemini — before you hit send. Nothing leaves your browser.
Zero-Trust Data Sanitization (ZTDS) — Verified Architecture
Independently auditable facts for Format compliance teams
Data transmission
0 bytes sent to any server
Processing location
100% browser RAM (volatile memory)
Session map persistence
Destroyed on tab close — never written to disk
Key derivation
Argon2id (memory-hard, server-independent)
Encryption cipher
XChaCha20-Poly1305 (authenticated encryption)
Offline verification
Airplane Mode Standard — full function without network
BAA / DPA required
No — zero PHI/PII reaches PrivacyScrubber servers
Audit method
Chrome DevTools → Network tab — zero outbound requests
How to audit: Open PrivacyScrubber, enable Airplane Mode, paste any format text, click Protect PII. Open Chrome DevTools → Network tab. Zero outbound requests will confirm 100% local execution. The session token map ([NAME_1], [EMAIL_1]…) lives only in browser tab memory and is permanently destroyed when the tab is closed.
COMPLIANCE FAQ
Frequently Asked Questions
Common questions about deploying zero-trust AI for Format Teams.
Does protecting data with PrivacyScrubber before AI processing satisfy GDPR requirements for processing datasets?
Yes. Processing pseudonymized data for a secondary purpose (AI analysis or drafting) aligns with GDPR requirements for processing datasets because no personally identifiable data is transmitted to the AI provider. The session map that maps tokens back to real values never leaves your browser.
What specific PII does PrivacyScrubber detect for format workflows?
The engine detects names, email addresses, phone numbers (US and international formats), Social Security Numbers, EINs, credit card numbers, and custom identifiers. PRO users can add custom regex rules to match format-specific patterns such as proprietary account IDs, MRNs, or internal project codes.
Can I reverse the redaction if I use PrivacyScrubber to mask format data?
Yes. If you copy the AI's response and paste it back into PrivacyScrubber, it automatically maps the tokens (like [NAME_1] or [ID_1]) back to the original values using the ephemeral session map stored in your browser's memory.
Can PrivacyScrubber be used 100% offline without network requests?
Yes. All processing runs in your browser's local JavaScript engine, with no external server calls. Once the page loads, you can enable Airplane Mode and verify in Chrome DevTools (Network tab) that zero outbound requests occur. All cryptographic operations (including client-side pseudonymization and reverse-revealing) utilize hardware-accelerated XChaCha20-Poly1305 encryption and Argon2id key derivation running entirely inside browser RAM, ensuring your format data stays 100% on your device.
How can I verify that PrivacyScrubber sends zero data to servers?
Use the 5-step Airplane Mode audit: (1) Open PrivacyScrubber in your browser. (2) Disconnect your network connection (enable Airplane Mode). (3) Paste a text sample containing names, emails, and phone numbers. (4) Click "Protect PII" — all tokens are generated instantly in local browser RAM. (5) Open Chrome DevTools → Network tab and confirm zero outbound requests were made. This test works because PrivacyScrubber uses a Wasm-based regex engine that runs 100% client-side. The session token map (e.g. [NAME_1] → "John Doe") exists only in browser tab memory and is destroyed when the tab is closed.
Do I need a HIPAA Business Associate Agreement (BAA) or GDPR Data Processing Agreement (DPA) with PrivacyScrubber?
No. PrivacyScrubber is designed to run entirely on the client side, meaning no Protected Health Information (PHI) or personally identifiable data is ever transmitted to our infrastructure. Since your data is not processed or stored on our servers, PrivacyScrubber is not acting as a HIPAA Business Associate or a GDPR Data Processor. Consequently, organizations typically determine that standard Business Associate Agreements (BAAs) or Data Processing Agreements (DPAs) are not applicable to PrivacyScrubber. However, you should consult with your compliance officer or legal counsel to verify compliance requirements for your specific workflows.
Can I customize detection rules for industry-specific data formats?
Yes. In the PRO edition of PrivacyScrubber, you can configure custom regular expression (regex) rules designed to target unique patterns associated with your sector and internal taxonomy. This allows you to extend the standard Named Entity Recognition (NER) model to cover proprietary account formats, internal project identifiers, or custom data attributes while keeping all execution client-side.
Is pasting sensitive data into ChatGPT safe?
Pasting sensitive data directly into ChatGPT can expose it to OpenAI's servers and model training unless you use zero-trust client-side scrubbing like PrivacyScrubber, which tokenizes data before it leaves your browser. Protect your workflows for $15/mo with PRO.
How does client-side PII redaction work?
Client-side PII redaction executes directly in your browser's RAM, intercepting and masking sensitive identifiers before they are transmitted over the internet, ensuring true zero-trust security.
How does the Secure Workspace differ from the Browser Extension?
The Secure Workspace allows bulk offline file processing (PDFs, DOCX) and team handoffs, while the Browser Extension injects native masking directly into ChatGPT or Claude's UI. Both are included in our zero-trust ecosystem.
What is the PII MCP Server used for?
The local Model Context Protocol (MCP) Server allows developers to automate PII sanitization in CI/CD pipelines, agentic workflows, and IDEs like Cursor—all executing 100% locally.
What Data Analysts and Engineers Send to AI — and What They Should Be Sending InsteadWhy Data Governance Teams Flag Unmasked AI Prompts
Auditors mandate rigorous controls over data in transit: GDPR requirements for processing datasets, and SOC 2 criteria regarding data handling in transit. When employees paste or upload unredacted files into external AI tools, they create unmonitored compliance liabilities. Adopting the strategies in why visual redaction fails enables organizations to enforce data minimization at the ingestion layer without compromising AI utility. Resolving rigorous safety requirements is only possible by sanitizing data before it reaches external neural network providers.
How to Use AI on Real Structured and Document Data — Without Sending a Single Real Name
Using our client-side Zero-Trust Data Sanitization (ZTDS) engine, PrivacyScrubber processes files locally in your browser window with zero server transmission. The WebAssembly parser extracts text from spreadsheets, PDFs (with local OCR for scanned pages), and Word documents, replacing sensitive strings with anonymous tokens before cloud transit. This aligns with enterprise bulk processing, enabling secure AI-assisted data modeling. The PrivacyScrubber Chrome Extension integrates natively into ChatGPT, Claude, and Gemini to automate the prompt-sanitization and response-restoration loop directly within the active editor. Running Named Entity Recognition locally ensures that teams can continue using ChatGPT Advanced Data Analysis, Claude Projects, and programmatic ML pipelines for daily queries without any third-party data collection.
Is PrivacyScrubber safe for remove hidden metadata from text online, clean text formatting online, plain text converter secure, strip tracking tokens text, sanitize copied text?
Yes, absolutely. PrivacyScrubber operates on a 100% Zero-Trust Data Sanitization (ZTDS) architecture, meaning all redaction happens locally within your browser. When working with remove hidden metadata from text online, clean text formatting online, plain text converter secure, strip tracking tokens text, sanitize copied text, no sensitive data ever leaves your device or touches a cloud server.
How does it handle custom data structures for format?
Our engine includes 22+ built-in industry profiles optimized for format data. Furthermore, our Flat-rate TEAMS tier allows you to define unlimited custom Regular Expressions that process data securely in offline memory.
Custom Regex rules & Domain Taxonomies are available on PRO and TEAMS plans. Default 25 profiles active.
Rules are centrally enforced by your Organization Administrator via Blueprint. Local modifications are locked.
Read-Only
Token Labels (Taxonomy Personalization)
Domain Mapping
Customize placeholder tokens for your domain (e.g. NAME → CLIENT).
Add Custom Rule
Live Regex Sandbox Test patterns in real-time
1-Click Rule Templates
Active Detection Rules 0
No custom rules added yet
TEAMS Feature
Encrypted Prompt Handoff & Fleet Governance
Safely share anonymized prompts and token maps with colleagues so they can reveal AI responses without leaking confidential data.
Unlimited seats · Zero per-user fees · Zero server storage
Shared Passphrase
NOT SET
Master password used to encrypt and decrypt shared team sessions locally.
Zero-Server Security: Your passphrase never touches any server. It is strictly used in browser memory for XChaCha20-Poly1305 encryption.
Encrypted Session Transfer
.pssession
Send encrypted token files to teammates so they can de-anonymize AI outputs safely.
Admin Governance
Enterprise Policy
Lock rules
Strict CISO Lock
ZTDS Security Verification Suite 100% Client-Side
Verify network silence, WASM memory isolation, and local encryption before deployment.
ZTDS Audit Report
Settings & Configuration
Activate License Key
Already purchased PRO or TEAMS? Enter your license key or paste your activation URL below.
Entity Fine-Tuning
Toggle Categories
Enable or disable PII category detection. Changes apply to all scrub operations.
Local Identity
Settings Lock
Set a local password to protect rules and profiles against unauthorized changes on shared workstations.
Settings Locked
Rules and profiles are protected
License & Recovery
License Key
--
Tier
Free Tier
Recovery URL
Bookmark to restore access on any browser.
Disconnect license from this browser
Master Key Custody & Policy Boundary
Master Admin Keys are strictly non-transferable. Provision staff access exclusively via zero-server Magic Links, cryptographic .psblueprint files, or Chrome Enterprise Policy.
Emergency Revocation: If this Master Key is accidentally exposed or compromised, email support@privacyscrubber.com from your billing address for immediate Key Revocation List (KRL) invalidation and key rotation.
End-to-End Zero-Trust Client Sanitization
PRO Workspace
Active
Key: PS-PRO-XXXX-XXXX
Overview & Workspace Stats
Real-time local privacy scanning performance inside this browser.
Chars Protected
0
Files Scanned
0
DLP Saved
$0.00
ZTDS Workspace Safety Score
Excellent
Safety score is based on local rule coverage, secure setting lock status, and offline database health.
100% Offline Operations
This workspace processing runs client-side in RAM. No keys, files, or sensitive prompts are ever transmitted or saved outside your local machine.
Custom Detection Rules
Define unlimited patterns for internal codes, project IDs, and proprietary formats unique to your workflow.
Unlimited Rules
Live Sandbox
Import/Export
Custom Detection Rules
Define custom patterns for proprietary formats, project codes, or custom names.
Add exact text, names, or custom patterns to catch domain-specific identifiers. Labels will appear as [LABEL_N].
Live Regex Sandbox
Active Rules
No rules added.
Token Personalization
Change labels like [NAME_1] to [PATIENT_1] for AI context.
Batch Document Center
Upload, queue, and process folders or batches of document files.
Batch Sanitization
Concurrently parse .txt, .docx, .csv, and PDFs. Local CPU handles rendering & parsing instantly.
DevSecOps Audit BETA
Recursively scan repositories for leaked API Keys, Cryptographic Keys, Intellectual Property, and PII. 100% offline.
Save Output Package
Saves all processed files back to your system, preserving layout formats and directory structures.
Offline Engines
Entirely private extraction engines. No files are ever sent to a server.
Local Image OCRWASM EngineExtract text from images right in your browser.
Offline PDFClient-side ParserParse text from PDFs without uploading them.
Choose how redacted text looks.
Select an industry-specific detection profile.
Entity Fine-Tuning
Toggle core PII categories detection.
100% Client-Side Processing
All engines run locally. Confirmed via zero network requests.
Settings Lock Password
Set a local password to lock your custom rules and active profiles against unauthorized changes on this computer.
Settings are Locked.
Enter your password to unlock editing for custom rules, detection profiles, and engines.
Configure New Lock
Settings Lock ActiveSettings and Custom Rules are locked
Local-Only Password
The lock password never leaves your browser. It prevents casual tampering with detection rules and profile settings on shared workstations.
License Details
License Key
—
Tier
PRO Individual
Recovery URL
Bookmark this URL to restore your PRO access on any browser or device.
Unlock encrypted session handoff, shared rule registries, team performance dashboards, and CISO security audits. Flat $99/mo — no per-seat pricing.
Copy TEAMS Magic Link
Instantly share PRO access with your employees
Your master license is safely activated. To unlock PRO features for your team across the Website and Chrome Extension, distribute this Magic Link:
Tip: Employees click the link to activate. No logins.
Keep this master link secure. Anybody with this URL can utilize your corporate TEAMS subscription.
Zero-Knowledge Session Handoff
XChaCha20-Poly1305 + Argon2id
Securely transfer volatile RAM token maps across devices and team members with end-to-end client encryption.
Cryptographic Zero-Server Guarantee
Payloads are encrypted in browser RAM using Argon2id key derivation and XChaCha20-Poly1305 AEAD. Zero server transmission.
TEAMS
Zero-Server Team Collaboration
Transfer live sanitization memory across analysts, prompt engineers, and legal reviewers without uploading tokens to any cloud database or central server.
This document certifies that the data sanitization operation was executed entirely client-side on the user's local machine. Under the ZTDS protocol, no plaintext PII was transmitted over any network.
Timestamp:2026-07-17T12:35Z
Session Hash:a4b9c1d3...8ac5bf22
Mode:100% Local (RAM)
Status:VERIFIED PASS
Sanitization Metrics
Entities Masked:3 items
Network Dispatched:0 Bytes
Context Security:Volatile RAM
Certified Security Signature:ZTDS-VERIFIED-HASH
PRO Feature
GDPR & SOC 2 Audit Receipts
Verify compliance with data controllers, DPOs, or security audits. Download a signed PDF certificate generated locally in your browser to prove that no prompt data left your network.
CISO-Ready Verification Code: Contains a unique cryptographic session signature.
Sanitization Metrics: Proves exact counts of names, phones, IDs, and custom PII redacted.
Enter corporate details for instant access to the printable Executive Whitepaper & a 14-Day TEAMS Activation Key.
Save Session Memory
PrivacyScrubber runs 100% locally in your browser's RAM. Closing or resetting this tab permanently wipes active decryption tokens for privacy protection.
Zero-Trust Session Backup
Download your encrypted session file (.pssession). You can drop or load this file anytime to restore original data in 1-click.
DevSecOps Audit Report
Zero-Trust Directory Scan Complete. 100% Offline.
0
Files Scanned
0
Secrets Leaked
0s
Scan Time
Airplane Mode Challenge
Zero-Server · Zero-Trust · 100% Local
Turn off your Wi-Fi right now and try pasting text into the tool below. It processes 100% in your local RAM without sending any network requests.
Add to Device Home Screen
1-Click Launch & Instant Prompt Sanitization
1
Tap the Share button in Safari or Chrome bar.
2
Scroll down and select Add to Home Screen.
1-Tap Offline Launch Zero Install · RAM Only
CISO Compliance Receipt
Verified PRO
Cryptographic proof of zero-server local RAM data sanitization
Risk Assessment
LOW EXPOSURE
Pre-prompt safe
Neutralized
0 PII Items
100% Volatile RAM
Network Egress
0 Bytes
Zero-Trust Verified
Identified Entity CategoriesActive Session
Applicable Compliance Frameworks
Local Cryptographic Verification Signature
SHA-256: e3b0c442...
Timestamp: Today
Redacted Document Inspection
Click badges to unmask false positives
100% Volatile RAM Preview — Zero Network Transmission
100%
Click any badge to unmask· Secure Flattening (Zero Hidden Text Layers)·Scroll to navigate · Ctrl+Scroll to zoom
