100% Offline • Zero Exposure

Finally use AI on your sensitive files. Without the risk. Fully offline.

promptShield removes sensitive information from your documents before you share them with any AI — locally, in seconds, with no data ever uploaded.

Try the desktop app
100% Offline ProcessingYour Documents Never Leave Your DeviceFree Starter plan — no card
GDPR Compliant
HIPAA Ready
Air-Gapped
Zero Data Retention
The Shadow AI problem

Right now, someone on your team is pasting client data into an AI nobody approved.

That's Shadow AI — not a strategy, but a habit every professional and organization needs to eliminate. Not by banning AI, but by making it safe to use on the work that matters.

The avoiders

"We just don't paste client data into AI."

Real work stays outside AI. The productivity gap grows silently.

The risk-takers

"I'll paste it anyway — nobody will know."

Shadow AI. One incident away from a compliance crisis.

The workarounds

"I manually delete names before I paste."

Time-consuming, error-prone, no audit trail — and it still makes the AI worse.

There's a fourth path.
Under 90 seconds

Two steps. That's the whole flow.

One pass finds what's sensitive and swaps it for safe codes — then restore it whenever you want, all on your own machine.

  • 01Protect

    Names, IDs, emails — found and swapped for consistent codes the AI can follow, in one pass

  • 02Decode

    Restored to real names on your machine

The web app is built for a bigger screen — open promptShield.ca on a laptop or desktop to try it live.

Works out of the box.

Every other tool that does this was built for developers. This one was built for you — download, open, protect your first document.

No codeNo setupNo ITNo cloud

100% offline. Your documents never leave your device — not even in this demo.

Protect, ingest, restore

promptShield encodes sensitive data before it ever reaches an AI. Feed the protected document to any LLM, then decode the output to get real results, with zero data exposure.

From sensitive document to AI insight — and back.

The complete workflow. Protect your document, put it to work with any AI, and bring real data back — all on your machine.

Built for how client work actually arrives

Your client's file keeps growing.Your AI conversation grows with it.

The Library is where every file lives — Protect, Decode, and your AI conversations all start from there. And because real work doesn't fit in a single document, every time the same entity reappears across new files, promptShield gives it the same code instantly — across every document, and across every conversation with your AI.

On your customer's side

Monday
First batch arrives
3 contracts · Alice Marchand → [P0ABCD]
Friday
More files come in
+2 contracts · Alice → still [P0ABCD]
Next month
Addendum lands
+1 document · same entity, same code

In your AI conversations

Monday
"Summarize these contracts."
AI sees [P0ABCD] for the first time
Friday
"Compare the new ones to the originals."
Same thread · same [P0ABCD]
Next month
"Is the addendum consistent with the original?"
New session · still [P0ABCD]
[P0ABCD]persists across every document and every conversation.
Add files anytime

Drop new documents into the folder whenever your client sends them. They inherit the existing code registry instantly — no re-coding, no mental remap, no broken references.

Your AI keeps its memory

[P0ABCD] means the same person in Monday's chat and next month's chat. Your AI never loses the thread, even across sessions, weeks, or model upgrades.

One folder per client. One code per entity. Your tooling finally scales the way your client relationships actually grow.

Try the Library free
Clean by default

Protected files: 100% metadata-clean

Every file you export — PDF, Word, Excel, or image — leaves with its metadata wiped at the binary level. Automatic, every time, with nothing to configure.

PDF
PDF Documents
  • Author, Title, Subject, Keywords
  • Creator & Producer software names
  • XMP (XML metadata) block
  • Table of contents / bookmarks
  • +5 more
DOCX
Word Documents
  • Author, LastModifiedBy
  • Title, Subject, Keywords, Category
  • Tracked changes (deleted / inserted text)
  • Inline comments & annotations
  • +2 more
XLSX
Excel Spreadsheets
  • Creator, LastModifiedBy
  • Title, Subject, Keywords, Category
  • Cell comments
  • Defined named ranges / formulas
IMG
Images (JPEG / PNG / TIFF)
  • All EXIF data (camera, GPS, date, serial)
  • IPTC metadata (caption, copyright, author)
  • XMP metadata block
  • ICC colour profiles
  • +1 more

Compliance, built in

Because nothing ever leaves your machine, the hardest parts of GDPR, HIPAA, and data-residency rules simply don't apply.

GDPR Compliant

No personal data is transmitted, stored, or processed externally. All sensitive data detection and redaction happens locally on your device.

HIPAA Ready

No PHI ever leaves the machine. Zero network transmission eliminates the need for a BAA with promptShield.

Air-Gapped Processing

Works fully disconnected from the internet. Deploy in secure environments, classified networks, or air-gapped workstations.

Zero Data Retention

No documents, codes, or sensitive data are stored after processing. Nothing is logged, cached, or sent to any server, ever.

License management

Every license, under control

Track renewals, organize by tag, and keep base licenses out of the way — all from one dashboard.

Licenses6
  • sarah.mitchell@acme.cobase
    JARC-CEXUU-YUCQH-0798
  • sarah.mitchell@acme.cobase
    QVAB-FLBAZ-BMQBA-1750
  • emma.laurent@acme.colegal
    BECF-RZEUF-EJXSQ-5441
  • aisha.rahman@acme.co
    MVMT-ADWJS-GGLTQ-9926
  • o.tremblay@acme.cofinance
    FQHK-PXDER-DPERA-9908
  • priya.patel@acme.co
    ZRTK-MNPQ-HWXZ-2847

Sample data shown for illustration purposes.

Manage every license from your browser

Track renewals, tag by department, and add seats in one click. No IT ticket, no provisioning scripts.

For compliance & DPOs

Hope is not a plan.

Buying anonymization software is step one. Unless you can see who's actually using it, you're just hoping the team is compliant — and hope is not a control.

Working solo? Skip ahead — promptShield works the same for individual users. This section is for teams that need to prove privacy rules are actually followed.
Seats
27
Compliant
22
Policy gaps
5
Pending
3
  • Sarah Mitchell
    Owner
    Today
  • David Chen
    Admin
    Today
  • Emma Laurent
    Admin
    2 days ago
  • Marcus Johnson
    Member
    47 days ago
  • Aisha Rahman
    Admin
    5 days ago
  • Olivier Tremblay
    Member
    Today

Sample data shown for demonstration. The live dashboard reflects real activity from your team.

Need this in front of your audit committee?

No sales call required. Forward the feature breakdown to your team. Every feature maps to GDPR Art. 32, HIPAA §164.312, SOC 2, and ISO 27001.

For compliance & DPOs

Every action, on the record.

When an auditor asks "who anonymized this document, and when?", a tamper-evident log answers in seconds. Every detection, encode, export, and decode — attributed, timestamped, and exportable.

Audit Log8,412
  • Anonymize
    sarah.mitchell@acme.co
    Today
  • Export
    sarah.mitchell@acme.co
    Today
  • Detect
    d.chen@acme.co
    Today
  • Anonymize
    emma.laurent@acme.co
    Yesterday
  • Decode
    a.rahman@acme.co
    Yesterday
  • Detect
    o.tremblay@acme.co
    2 days ago

Sample data shown for demonstration. The live log reflects real activity from your team.

Need an audit trail your compliance team can stand behind?

No sales call required. Filter, search and export the full trail — the sample data above shows exactly what it records.

Simple, fair pricing

Start free for 7 days. Upgrade when you're ready, cancel anytime.

MonthlyYearly
Most Popular
Desktop Basic
$29/mo
+ applicable tax
Licenses

For individuals and small teams. Your 2 personal device slots are always included.

Get Basic
  • Web app — in your browser
  • Desktop app
  • 100% offline
  • All 70+ entity types
  • Multiple entity-recognition models
  • OCR for scanned docs
  • PDF & image files
  • MS-Office files (Word, Excel, PowerPoint)
  • Export redacted PDFs
  • Search for expressions with spreadsheet
  • Folder-based file linking
  • Trust Badge
Desktop Pro
$59/mo
+ applicable tax
Licenses

For teams needing central compliance and license management.

Get Pro

Everything in Desktop Basic +

  • Deep Analysis (local LLM)
  • CLI & self-hosted API
  • Audit log
  • License management dashboard
  • Compliance monitoring
  • Offline activation
Also available
Web Starter
$0Free forever

The full web app in your browser — free, forever. Plus a 7-day trial of the desktop app.

Launch web appDesktop only
  • Web app — in your browser
  • 100% offline
  • All 70+ entity types
  • OCR for scanned docs
  • PDF & image files
  • Export redacted PDFs
  • Search for expressions with spreadsheet
  • Trust Badge
Desktop Week Pass
$19/week
+ applicable tax

Full access for one week. 2 devices, email support included.

Get Week Pass

Secured payment with Stripe. Cancel anytime from your dashboard.

Every plan includes built-in in-app help — get answers without leaving the app.

Zero exposure. Zero compromise.

Your sensitive files. Finally safe for AI.

7-day free trial. No credit card. No cloud. Anonymize your first document in under 2 minutes.

See How It Works