Use every AI.
Expose nothing.

We use ChatGPT and online LLMs every day — to rewrite emails, process documents, crunch financials. But we don't know how they train on our data. Obscura strips personal information before every prompt, and restores it after. All the productivity, none of the exposure.

Your Prompt 4 entities found
Rewrite this email more professionally:

Hi David Chen, this is Sarah Mitchell from Acme Corp. My direct line is (415) 555-0187. I wanted to follow up on the proposal I sent to [email protected]. Can we schedule a call this week?
Sent to ChatGPT Safe to send
Rewrite this email more professionally:

Hi [NAME_1], this is [NAME_2] from Acme Corp. My direct line is [PHONE_1]. I wanted to follow up on the proposal I sent to . Can we schedule a call this week?
Processing locally · 0 bytes sent to OpenAI
Name ×2 Phone Email
See how it works ↓
39 creators and companies
Built for professionals, hobbyists & enterprise
Beta users across 3 continents

The AI keeps working.
Your data stays home.

Large corporations get on-premises AI to keep everything private. The rest of us paste our lives into ChatGPT and hope for the best. Obscura closes that gap.

Nothing Leaves Your Machine

All detection and anonymization runs locally on your device. No API calls, no cloud processing, no telemetry. Your names, emails, and financials never touch a server you don't own.

Catches Everything

Names, emails, phone numbers, SSNs, credit cards, addresses, passport numbers — 40+ entity types. Hybrid AI + pattern matching for 98%+ accuracy across real-world text.

Placeholders That Work

Obscura replaces PII with clearly labeled tokens like [NAME_1] and [EMAIL_1]. The AI understands the structure and responds correctly — with the placeholders in the right places. Paste the output and click restore.

Round-Trip Restore

Send the anonymized prompt. Get the AI's response. Paste it into Gmail, Slack, or Docs. Click restore — your original names, numbers, and details flow right back in. The full loop, zero exposure.

The full loop.
Zero exposure.

01

Write your prompt

Type normally. Obscura detects every name, email, phone number, and sensitive detail in real-time before you hit send.

Your Prompt
Rewrite this for a client: Hi David Chen, this is Sarah Mitchell. Reach me at (415) 555-0187 or [email protected].
02

AI gets the safe version

Obscura swaps PII for labeled placeholders. ChatGPT sees [NAME_1] and [PHONE_1] — and still understands your request perfectly.

ChatGPT sees
Rewrite this for a client: Hi [NAME_1], this is [NAME_2]. Reach me at [PHONE_1] or .
03

Paste, restore, done

The AI responds with placeholders in the right places. Paste the output into Gmail, Slack, or Docs. Click restore — real names flow back in.

Restored
Dear David Chen, I hope this message finds you well. This is Sarah Mitchell. Please feel free to contact me at (415) 555-0187 or [email protected].

Enterprise-grade privacy.
Individual-friendly.

The same level of data protection that Fortune 500 companies pay millions for — running as a Chrome extension on your laptop.

Hybrid Detection

GLiNER AI model + regex pattern matching. Catches what each method misses alone.

Cross-Tab Sessions

Anonymize in one tab, paste in another, restore in a third. Session mappings persist across your browser.

User Corrections

Reject false positives, relabel entities, add missed detections. Obscura learns from your feedback.

Configurable Sensitivity
Inline Highlighting
Detection Presets
Context Analysis
Local SQLite Storage
Scan History

AI is part of the workflow.
Privacy should be too.

Rewriting Emails
Ask ChatGPT to polish your email without giving it every name, phone number, and address in the thread. The rewrite still works perfectly.
Processing Documents
Summarize contracts, extract data from PDFs, analyze spreadsheets with AI — without exposing client names, account numbers, or financials.
Handling Financials
Use AI to format invoices, reconcile expenses, or draft reports — without credit card numbers, bank details, or SSNs ever hitting the cloud.
Sharing Safely
Paste meeting notes into Notion, upload logs to Jira, or share data with contractors — with personal details stripped out until you choose to restore them.

Keep using AI.
Stop giving it everything.

AI is a bigger part of our lives every day. Stay safe, private, and local — while keeping the productivity multiplier.