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Clear Drop

Pseudonymize - Anonymize

Clear Drop masks your sensitive data
Make the most of your AI tools without sharing confidential information.

Clear Drop replaces the sensitive data in your documents, presentations or emails with contextual pseudonyms before they are processed by your AI tools. When you are happy with the result, restore your original information in a few clicks.

  • Documents processed locally
  • Reversible and verifiable
Clear Drop
Illustration of the Clear Drop app protecting a sensitive document
You choose which data to process

Protect your personal data in just a few clicks

Anonymize sensitive information by redaction before sharing documents, or pseudonymize it to reduce data exposure when using your AI tools.

Preview of the Clear Drop interface with reversible pseudonymization and anonymization by redaction

Pseudonyms can be restored locally. Anonymization by redaction removes the selected values from the copy.

AI has become part of everyday work.

To save time, teams paste emails, contracts, meeting notes and database excerpts into AI tools. Those materials may contain personal data, customer information or business secrets. Once shared, their handling depends on the service and its settings; internal rules alone may not prevent these disclosures.

Sensitive data enters AI prompts

Meeting notes, a client email or a code excerpt can contain personal data, confidential information or business secrets.

Hard-to-govern AI use

Public AI tools are sometimes used without company approval. An internal policy alone may not prevent someone from sharing a sensitive document.

Context can reveal identities

Even when a name is removed, other details in a document may still identify a person, customer or project.

  1. Current policy

    Some conversations may be reviewed

    Google explains that Gemini conversations may be reviewed by human reviewers and retained for up to three years. It advises users not to enter confidential information they would not want a reviewer to see.

  2. February 2026

    A configuration error exposes conversations

    A security investigation reported that the Chat & Ask AI app database was accessible without authentication, exposing conversations associated with millions of accounts.

  3. July 2025

    Shared conversations become searchable

    In 2025, search engines indexed ChatGPT conversations shared by link. OpenAI later removed the option that made those pages discoverable.

  4. May 2025

    Deletion does not always override retention duties

    During its litigation with The New York Times, OpenAI said it had to preserve certain ChatGPT data in response to a court order, including data covered by deletion requests.

Prepare documents before sharing them with AI.

Clear Drop processes a copy on your computer. Review detected items, choose what to pseudonymize for later restoration, or what to anonymize by redaction before sharing the document.

  • Process a local copy

    Your documents are analysed on your computer; the app does not automatically send them to an AI service.

  • Choose the treatment

    Pseudonymize values you may want to restore after AI processing, or anonymize by redaction with a black or blurred band.

  • Review before sharing

    Check the proposed changes and approve the copy you want to export.

  • Restore recognized values

    After using AI, re-import the result and review any flagged markers before using the final document.

From the original document to the final result, you stay in control.

Import your document, check the detected data and approve its replacement. Work on the protected version with your usual AI tools, then re-import the result to restore your original information. Document processing is local; update checks and some licence features may require a network connection.

Outbound — protect

  1. 1

    Import

    Drop in your document. The app analyses it on your machine; processing the document does not require sending it over a network.

  2. 2

    Detect

    The engine helps identify sensitive data: emails, IBANs, names, amounts, IP addresses and project names.

  3. 3

    Review

    Stay in control. Approve, adjust or add rules in one click. Nothing is masked without your approval.

  4. 4

    Export

    Get a copy processed according to your choices. Review it before sharing with your AI tool.

Inbound — restore

  1. 5

    Process with AI

    Paste the masked text into ChatGPT, Claude or your internal AI tool. Work normally.

  2. 6

    Restore

    Bring the answer back. Clear Drop replaces the tokens with your original data. Your final document is ready.

Any input, the output you choose: work with any document.

Import your original file, mask its secrets locally, and ask your AI to return the result in the format you choose — from plain text to PowerPoint.

Office & Documents

  • Word.docx
  • PDF.pdf
  • OpenDocument text.odt

Spreadsheets & Data

  • Excel.xlsx
  • CSV.csv
  • OpenDocument spreadsheet.ods

Presentations

  • PowerPoint.pptx
  • OpenDocument presentation.odp

Code & Text

  • Plain text.txt
  • Markdown.md · .markdown
  • Email.eml
TXTIAPPTX / DOCX / PDF

Fluid interconversion: work with your data in one format and receive your restored answer in another.

Your documents are processed on your computer.

Clear Drop prepares copies locally. The software does not automatically send your documents to an AI service.

  • Local document processing

    Processed on your computer: Detection, pseudonymization, redaction and restoration run on your machine. Checking for updates and some licence features may require a network connection.

  • Analysis stays on your device

    No AI service required: The selected document is analysed locally. Processing a document does not require sending it to an AI service.

  • Encrypted mappings

    Secure storage: Mappings between original data and tokens are stored separately on your disk. See the documentation for details about the protections in place.

  • No usage telemetry

    No trace: Clear Drop does not include usage telemetry. Documents are processed on the device; update and licence features may exchange technical data with online services.

  • Review before using the result

    You approve: Review the result and any warnings shown by the application before using or sharing the file.

  • Review the copy before sharing

    You stay in control: Review the result before exporting. The level of anonymization depends on the content you choose to redact.

Learn more about security and privacy

An honest approach to data protection.

A security tool that oversells its guarantees creates a false sense of safety. We prefer clarity.

  • People remain in charge: automatic detection is an aid; review its results and approve the proposed changes.

  • Intelligent pseudonymization: the markers preserve some context while replacing selected sensitive values. Pseudonymization reduces exposure but does not eliminate every re-identification risk.

  • Built for your governance: Clear Drop processes documents locally according to your choices, without replacing decisions made by your risk or DPO teams.

  • Designed for approved use: the tool secures workflows with the AI systems your company has approved.

Pay for output, not a subscription.

Document processing takes place on your computer. Choose the plan that fits your pace, with no commitment.

Free

Early access

€0

Planned free allowance when an account is created.

  • When an account is created: 8 pseudonymizations and 8 anonymizations by redaction.
  • Each following month: 2 pseudonymizations and 2 anonymizations by redaction; monthly allowances do not roll over.
  • The current free monthly allowance is used before pass credits.
  • The perpetual licence provides unlimited use and does not receive the monthly free allowance.
Join the waitlist

Pass

Planned Pricing

From €6 excl. tax

20 documents; planned options: 60 for €15 or 150 for €30, before tax

  • Pass credits are used after the available free allowance for the month.
  • The monthly free allowance continues to renew while a pass is available.
  • Applicable taxes are added according to the buyer’s country.
Join the waitlist

Lifetime License

Planned launch price

€99 excl. tax

One-time payment; applicable taxes added according to the buyer’s country

  • Unlimited use of the application under licence terms to be published before sales open.
  • The application remains usable after the first year in the version then installed.
  • The first year includes updates and support.
  • After one year: optional updates and support at a planned €49 per year, before tax.
Join the waitlist
Compare all plans and features →

Indicative launch prices, before tax; applicable taxes depend on the buyer’s country. Purchases are not open yet. No enterprise offer is available at launch.

Frequently asked questions

Everything you need to know about Clear Drop privacy, how it works and its editions.

Document detection, pseudonymization, redaction and restoration take place on your computer. The app does not automatically send the documents it processes to an AI service. Update checks and some licence features may require a network connection. If you export a pseudonymized copy to an AI provider, pseudonymization reduces exposure but does not remove every re-identification risk.

No, and that is by design. You keep using the AI provider of your choice or the one approved by your organization (ChatGPT, Claude, Mistral, and others). Clear Drop can prepare a pseudonymized copy before you send it, then restore recognized values in the response.

Pseudonymization replaces sensitive values with reversible masks: it reduces exposure but does not eliminate every re-identification risk. Anonymization is done by redaction, using a black or blurred band. You review and approve each change before export.

The same sensitive value receives the same mask across documents in a project. Correspondence tables are stored separately on your disk. During restoration, review any masks flagged by the app.

Clear Drop restores recognized masks. If a mask is modified or unknown in AI-generated text, it is left in place and flagged for review.

Clear Drop supports Plain Text, Markdown, CSV, Word (.docx), Excel (.xlsx), PowerPoint (.pptx), OpenDocument (.odt, .ods, .odp), E-mails (.eml), and PDF. Formulas in spreadsheets and presenter notes in slide decks are preserved. Scanned image PDFs are not yet supported.

An account receives 8 pseudonymizations and 8 anonymizations by redaction when created, then 2 of each per month. Monthly allowances do not roll over and are used before pass credits. Planned launch prices are €6, €15 and €30 before tax for 20, 60 and 150 documents, and €99 before tax for the perpetual licence. Purchases are not open yet.

At the start of the next month, the allowance is replaced with 2 pseudonymizations and 2 anonymizations by redaction; unused monthly allowances do not carry over. If a pass is available, its credits can then be used.

The licence remains usable after the first year in the version then installed. The first year includes updates and support; renewing them is optional at a planned price of €49 per year, before tax.

Installation limits and usage rules will be specified in the licence terms published before sales open.

No. Clear Drop helps you process and govern sensitive data locally, but it does not claim regulatory certification or guaranteed automatic anonymization. It reduces data exposure as a tool for your governance.

Clear Drop is available and verified for macOS. The Windows version is undergoing advanced testing, and Linux support is planned for a later phase.

Clear Drop is in development. The official launch is planned for 4 January 2027, subject to project progress. Any beta terms will be announced separately; no sales are open today.

No. Clear Drop is proprietary software sold under a standalone license.

Get the best from AI, with peace of mind.

The official Clear Drop launch is planned for 4 January 2027. Join the waitlist for project updates and the availability announcement. Any beta terms will be announced separately.

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