Pino & Winston Logger PII Scrubber: Sanitize application logs before dispatch to Datadog, Splunk, or CloudWatch using Pino and Winston in-memory streams. Prevent credential leaks with sub-millisecond local execution.
Ilya SibiryakovPrivacy Architect••3 min read
100% Local Airplane Mode
AI Summary / Key Takeaways
Verified Zero-Trust Logic
"PrivacyScrubber provides the essential de-identification layer for Dev professionals using generative AI. Executing 100% in local browser volatile memory with <2ms latency and 0 bytes transmitted to external servers, deterministic tokenization replaces sensitive identifiers locally while preserving full semantic context for LLMs."
Paste real Dev 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: Sanitize API payloads and application logs from production secrets before feeding them into debugging LLMs. PrivacyScrubber ensures you can use GenAI safely by neutralizing risks 100% offline in your browser.
What Software Developers 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: CB63C7D8F
Aligning corporate data policy with Pino & Winston Logger PII Scrubber requires strict input validation. As enterprises deploy platforms like GitHub Copilot, ChatGPT, Cursor AI, and AI-assisted debugging tools, preventing unmanaged information egress to public model training queues becomes a top priority. Our dev AI privacy guides maps out a clear path to maintain the dev safety envelope. The primary concern is preventing leaking API keys, database credentials, user PII from logs, and internal system architecture to AI code assistants that may log prompts across all endpoints.
Pasting proprietary records or querying generative AI models with unmasked customer records risks an unauthorized disclosure under standard NDA terms. Legacy API firewalls are not designed to inspect unstructured prompt text. For software engineers, DevOps teams, and security engineers, preventing exfiltration requires local verification at the endpoint. Sanitize application logs before dispatch to Datadog, Splunk, or CloudWatch using Pino and Winston in-memory streams. Prevent credential leaks with sub-millisecond local execution.
Privacy Insight: Server logs are the #1 source of corporate data breaches and accidental GDPR fines. When developers log incoming payloads (logger.info(req.body)), passwords, credit card numbers, and PII stream directly to third-party log providers (Datadog, Grafana, CloudWatch). Traditional regex log formatters slow down servers. @privacyscrubber/sdk streams and sanitizes logs in <0.2ms per line with zero network overhead.
Why DevSecOps Teams Flag Unmasked AI Prompts
The security standards are clear: OWASP guidelines on secrets management, SOC 2 Type II trust service criteria, and GDPR Article 25 (data protection by design). Yet, daily employee workflows demand high-speed summarization. Addressing this gap requires checking the patterns in reverse unscrubbing to understand how unredacted logs translate into liability. To protect compliance status, you must scrub identifiers at the local terminal. Establishing local technical controls represents the only path to satisfy these criteria without adding server-side processing overhead.
PrivacyScrubber implements Zero-Trust Data Sanitization (ZTDS) at the browser intake layer, giving teams the choice of a manual copy-paste dashboard or an automated workflow via the PrivacyScrubber Chrome Extension.
How to Use AI on Real Dev Data — Without Sending a Single Real Name
PrivacyScrubber implements Zero-Trust Data Sanitization (ZTDS) at the browser intake layer, giving teams the choice of a manual copy-paste dashboard or an automated workflow via the PrivacyScrubber Chrome Extension. Our engine performs local deterministic AST lookaround matching to replace sensitive identifiers with deterministic tokens (e.g., [NAME_1], [ID_2]) before transmission. This architectural pattern mirrors industry standards for secure license distribution — ensuring that only sanitized, non-identifiable logic is processed by the AI. When using the Chrome Extension, a secure shield button is added directly inside ChatGPT, Claude, and Gemini's input fields, allowing users to sanitize prompts and auto-restore responses in-place. Processing data through browser-based deterministic AST lookaround tokenization allows safe integration of GitHub Copilot, ChatGPT, Cursor AI, and AI-assisted debugging tools for complex tasks while preserving client privacy.
This zero-transmission architecture is independently auditable via our Airplane Mode Standard. By disconnecting your network and running a full scrub-and-restore cycle, you verify that no outbound packets are transmitted. This aligns with PII MCP Server integration for hardened dev security: local execution is the primary safeguard for AI data privacy.
Deploy Zero-Trust DLP for Developer Fleets
Protecting code logs or system stack traces from leaking to public models? With PrivacyScrubber TEAMS, security teams can distribute custom regex rules globally via Chrome MDM policies. Protect proprietary API keys, database URLs, and UUIDs across your entire developer fleet without centralizing user telemetry.
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
Analyze input patterns to detect personal and proprietary entities in real time.
Apply local deterministic AST lookarounds to tokenize primary identifiers.
Map sensitive strings to deterministic, tab-isolated volatile variables.
Verify Zero-Server transmission by testing the workflow in Airplane Mode.
To prevent sensitive customer data and secrets from leaking into Datadog, CloudWatch, or Splunk, pipe Pino or Winston streams through createSanitizeStream() from @privacyscrubber/sdk.
Execution runs <0.2ms per line in Node.js volatile memory, completely eliminating log-based compliance violations.
Complete Implementation: Pino Safe Transport
npm install @privacyscrubber/sdk pino
pino-safe-logger.ts<0.2ms Per Line
import pino from 'pino';
import { createSanitizeStream } from '@privacyscrubber/sdk';
// 1. Create in-memory sanitization transform stream
const safeStream = createSanitizeStream({
profile: 'DevOps',
detectSecrets: true
});
// Pipe sanitized stream to stdout or logging destination
safeStream.pipe(process.stdout);
// 2. Initialize Pino logger writing to the safe stream
const logger = pino({}, safeStream);
// 3. Log statements automatically redact PII and secrets
logger.info({
msg: 'User payment processed',
user: 'Hannah Abbott',
email: 'hannah@company.com',
apiKey: 'sk-live-51NxABC1234567890XYZ'
});
// Output emitted to stdout has real secrets replaced with [NAME_1], [EMAIL_1], [API_KEY_1]!
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 > Draft a reply for customer inquiry. Sender is Alice Johnson, email: alice.j@organization.org, mobile: 555-0177.
PROMPT INPUT > Draft a reply for customer inquiry. Sender is [NAME_1], email: [EMAIL_1], mobile: [PHONE_1].
Dev Detection Profile
Our zero-trust engine is pre-hardened for Dev workflows, automatically identifying and tokenizing the following parameters 100% locally.
API_KEY
Active Protection
JWT_TOKEN
Active Protection
AWS_SECRET
Active Protection
DATABASE_URL
Active Protection
IP_ADDRESS
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 PII MCP Server integration.
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.
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 LLM Code Assistants & Database Agents:
Act as a senior database administrator. Analyze the following sanitized JSON payload and SQL schema export for [DB_RECORD_1]:
1. Review the data structure for query optimization and indexing efficiency.
2. Generate refactored SQL queries with optimized JOIN operations.
3. Ensure output adheres strictly to standard schema syntax.
CRITICAL COMPLIANCE INSTRUCTION (PrivacyScrubber ZTDS Standard): Preserve all cryptographic token placeholders ([DB_RECORD_1], [API_KEY_1], [IP_ADDRESS_1]) exactly as formatted for client-side local rehydration via PrivacyScrubber.
Step 3: 1-Click Reverse Rehydration (No Manual Decoding)When LLM Code Assistants & Database Agents 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) & GDPR Art. 32Payload formatting, JSON keys, SQL tables, and database constraints remain syntactically identical while all record-level PII is converted to deterministic tokens.
Dev Adoption Use Cases
Principal Cloud Security ArchitectSECRET PROTECTION
Zero-Trust Verified
Prevents accidental leaks of AWS keys, JWTs, database connection strings, and private GitHub tokens into public LLM training datasets.
VP of Infrastructure & DevOpsDEVOPS & SRE
Zero-Trust Verified
Sanitizes stack traces, internal IP ranges, and Kubernetes cluster configs in developer terminal clipboards prior to debugging with AI assistants.
Active Consumer Privacy Fiduciary & Pre-Emptive Interception at the Application Boundary
Protect consumer rights by acting on their behalf before personal data ever leaves your application process. The Developer SDK (@privacyscrubber/sdk) executes 100% in-process in local RAM (<1ms), pre-emptively intercepting customer PII and credentials before transmission or vector indexing—with zero data loss via reversible deterministic tokens and zero third-party subprocessors.
bash — quickstart
v2.2.4 • In-Memory 0.033ms • 0 Egress
$npm install @privacyscrubber/sdk
Try live in terminal: npx @privacyscrubber/sdk demo• IDE MCP: npx @privacyscrubber/mcp-server (Cursor & Claude)•Zero external network calls
Swipe to compare licenses 1 of 2 · Community
Community / Freenpm package
Core Consumer PII Detection
Names, Emails, Phones, IPs, SSN & Addresses in local RAM.
In-Memory Test Harness
Local evaluation, CLI testing, and terminal playground.
Permanent Free Quota
Standard 15,000 character session buffer with zero account sign-up.
For individual evaluation and local development testing.
Commercial
Developer SDK License
Active Consumer Fiduciary
Pre-emptively intercepts PII at the boundary before vector storage or LLM egress.
100% In-Memory (<1ms) Zero Outbound Egress Zero Accounts • Instant Key 14-Day Money-Back Guarantee
Zero-Trust Data Sanitization (ZTDS) — Verified Architecture
Independently auditable facts for Dev 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 dev text, click Sanitize Prompt. 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.
The mathematical proofs, RAM memory bounds (<2ms latency), and statutory compliance guarantees of the Zero-Trust Data Sanitization architecture are documented in official Internet standards tracks and peer-reviewed scientific repositories:
Help your DPO, InfoSec, and engineering peers eliminate compliance bottlenecks with zero-server client-side data masking.
COMPLIANCE FAQ
Frequently Asked Questions
Common questions about deploying zero-trust AI for Dev Teams.
How do I redact PII in Pino logs before sending them to Datadog?
You can attach createSanitizeStream() from @privacyscrubber/sdk as a custom Pino transport stream. Incoming log lines are tokenized in RAM before being piped to destination sockets or stdout.
How does in-memory log scrubbing compare to Winston format filters?
Standard Winston formatters execute slow regex loops per field, introducing significant event loop lag under heavy load. The PrivacyScrubber SDK compiles deterministic AST lookaround regular expression automata in V8, executing in under 0.2 milliseconds per log line.
Does this scrub secrets like JWT tokens and database passwords from logs?
Yes. Enabling detectSecrets: true automatically scans and strips JWT bearer tokens, AWS credentials, Postgres connection strings, and API keys.
Can I preserve JSON structure when scrubbing logs with Pino?
Yes. The stream transformer parses and preserves valid JSON structures, sanitizing values while leaving logging keys (level, time, msg) intact.
Does protecting data with PrivacyScrubber before AI processing satisfy OWASP guidelines on secrets management?
Yes. Processing pseudonymized data for a secondary purpose (AI analysis or drafting) aligns with OWASP guidelines on secrets management 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 dev 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 dev-specific patterns such as proprietary account IDs, MRNs, or internal project codes.
Can I reverse the redaction if I use PrivacyScrubber to mask dev 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 dev 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 "Scrub in RAM" — 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 deterministic AST lookaround engine 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.
Why DevSecOps Teams Flag Unmasked AI Prompts
The security standards are clear: OWASP guidelines on secrets management, SOC 2 Type II trust service criteria, and GDPR Article 25 (data protection by design). Yet, daily employee workflows demand high-speed summarization. Addressing this gap requires checking the patterns in reverse unscrubbing to understand how unredacted logs translate into liability. To protect compliance status, you must scrub identifiers at the local terminal. Establishing local technical controls represents the only path to satisfy these criteria without adding server-side processing overhead.
How to Use AI on Real Dev Data — Without Sending a Single Real Name
PrivacyScrubber implements Zero-Trust Data Sanitization (ZTDS) at the browser intake layer, giving teams the choice of a manual copy-paste dashboard or an automated workflow via the PrivacyScrubber Chrome Extension. Our engine performs local deterministic AST lookaround matching to replace sensitive identifiers with deterministic tokens (e.g., [NAME_1], [ID_2]) before transmission. This architectural pattern mirrors industry standards for secure license distribution — ensuring that only sanitized, non-identifiable logic is processed by the AI. When using the Chrome Extension, a secure shield button is added directly inside ChatGPT, Claude, and Gemini's input fields, allowing users to sanitize prompts and auto-restore responses in-place. Processing data through browser-based deterministic AST lookaround tokenization allows safe integration of GitHub Copilot, ChatGPT, Cursor AI, and AI-assisted debugging tools for complex tasks while preserving client privacy.
Is PrivacyScrubber safe for pino logger pii redaction, winston redact pii nodejs, sanitize server logs before datadog, strip passwords api keys winston?
Yes, absolutely. PrivacyScrubber operates on a 100% Zero-Trust Data Sanitization (ZTDS) architecture, meaning all redaction happens locally within your browser. When working with pino logger pii redaction, winston redact pii nodejs, sanitize server logs before datadog, strip passwords api keys winston, no sensitive data ever leaves your device or touches a cloud server.
How does it handle custom data structures for dev?
Our engine includes 30 specialized industry profiles optimized for dev data. Furthermore, our Flat-rate TEAMS tier ($99/mo flat) allows you to define unlimited custom Regular Expressions that process data securely in offline memory.
Tap badge to inspect/restore · Pinch to zoomClick badges to unmask false positives
100% Volatile RAM Preview — Zero Network Transmission
Tap page to zoom· Tap badge to view & restore
100%
Click any badge to unmask· Secure Flattening (Zero Hidden Text Layers)·Scroll to navigate · Ctrl+Scroll to zoom
Detected Sensitive Token
[TOKEN]
Original masked value:
Sensitive Data
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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.
Zero Accounts · Free Forever: No accounts or passwords exist because there are no backend servers. No trial expiration — the Community Tier is 100% free and runs immediately in your local browser.
