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Legal Document Redaction Tool for LLM Submissions

Backed by Microsoft For Startups
Guided by Grayver Law Group
AES-256 Encryption
Free during early access

Legal document redaction tool for LLM submissions — Justee is purpose-built for attorneys who need to strip PII from legal documents before submitting them to any large language model. Automatically detect and remove 30+ entity types for safe AI analysis, summarization, or drafting.

Free and no sign-up required.

Upload your document for PII Redaction

Drop a file here or click to browse

Supports PDF, DOCX

Uploaded files are deleted immediately after processing

No one has access to the files you upload

Key Takeaways

LLMs process text inputs that may be logged, cached, or used for training — making PII removal essential

Justee detects 30+ entity types specific to legal documents including case numbers, bar IDs, and SSNs

All documents are protected with AES-256 encryption and deleted immediately after the redaction process

Structured placeholders preserve document context so LLMs can still perform meaningful legal analysis tasks

Under 2 minutes*

Average Redaction Time

30+ types

PII Entity Types Detected

AES-256 Encryption

Document Security

* Estimates based on typical documents. Actual results vary by document size and complexity.

Large language models such as AI models, AI assistants, AI tools, and open-source AI have become increasingly capable tools for legal document analysis, research, and drafting assistance. However, the data handling practices of LLM providers vary significantly, and most commercial LLM services process user inputs on remote servers where data may be temporarily stored, logged, or used to improve future model performance. For attorneys, this creates a tension between the utility of LLMs and the obligation to protect client confidentiality. Redacting personally identifiable information before LLM submission resolves this tension by ensuring that no real client data reaches the model. Justee automates this process specifically for legal documents, detecting entity types that are common in legal contexts — such as case numbers, bar identification numbers, and court references — in addition to standard PII like names, SSNs, and addresses. The result is a document that an LLM can analyze effectively while containing zero actual client information.

What We Redact

Names of all parties, witnesses, judges, and attorneys replaced with sequential [PERSON_N] placeholders

Court identifiers including case numbers, docket IDs, and filing references anonymized to [CASE_NUMBER_N]

Financial data such as damages amounts, retainer fees, and account numbers redacted completely

Contact information including email addresses, phone numbers, and physical addresses removed

Professional identifiers such as bar numbers, medical license numbers, and employee IDs stripped

Risks of Sharing Unredacted Documents

LLM providers may retain input data temporarily or permanently depending on their terms of service

Cloud-based LLMs process data on shared infrastructure, increasing potential exposure surface

Prompts containing client PII may appear in provider logs or debugging systems

Some LLM outputs are reviewed by human evaluators at the provider company for quality assurance

Cross-referencing redacted but patterned data could potentially re-identify clients without full redaction

How It Works

1
Upload Legal Document

Submit your contract, agreement, pleading, or memo in PDF, DOCX, or TXT format to the Justee tool.

2
Smart Entity Detection

Justee identifies legal-specific PII including party names, case numbers, bar IDs, EINs, and financial figures.

3
Verify Redacted Output

Review the preview with typed placeholders ensuring all sensitive data has been properly detected and replaced.

4
Submit to Any LLM

Download the clean document and use it with AI models, AI assistants, AI tools, open-source AI, or any other LLM platform.

Hypothetical Case Study by Justee

An intellectual property law firm was building a research workflow using AI assistants to analyze patent licensing agreements for common royalty structures. The licensing agreements contained inventor names, patent numbers linked to specific individuals, licensing fee structures, corporate party names, and confidential royalty percentages.

Issue Found: Submitting unredacted licensing agreements would have exposed proprietary business terms, inventor identities, and confidential royalty rates to the LLM provider's servers.

Resolution: The firm processed all 30 licensing agreements through Justee before LLM submission. Party names, patent-holder identifiers, financial terms, and contact details were replaced with structured placeholders. AI assistants was able to identify royalty structure patterns across agreements without accessing any real business or personal data.

Patent License Agreement: Before vs. After Redaction

Why it matters: Organization names, individual identifiers, tax IDs, patent numbers, royalty rates, and contact details are all replaced. The LLM can analyze license structure, grant scope, and royalty mechanics without seeing any confidential business information.

No credit card required

The legal profession is adopting LLMs faster than ethics rules can keep up. Until the rules catch up, the safest approach is simple: never send client data to an LLM. Redact first, analyze second.

Artem Dolukhanyan
Artem Dolukhanyan

Partner, Corporate Transactions at Grayver Law Group

AI PII Redaction vs. Manual Redaction

FeatureJustee AI RedactionManual Redaction
LLM CompatibilityWorks with any LLM platform (GPT, AI assistants, AI tools)Same document prep regardless of method
Legal Entity TypesCase numbers, bar IDs, EINs, and 30+ typesLimited to what reviewer thinks to check
SpeedUnder 2 minutes automated processing30-60 minutes per document by hand
Placeholder StructureTyped, sequential placeholders ([PERSON_1])Inconsistent — often uses [REDACTED] for everything
CostFree tier available, no sign-up requiredParalegal or associate billable hours
* Comparison data represents estimates based on internal testing for typical document types. Redaction times and detection coverage vary by document complexity, length, and content type.

Official Privacy & Data Protection Resources

NIST AI Risk Management Framework (AI RMF)

Federal framework for managing risks associated with AI systems, including data privacy and security considerations.

ABA Standing Committee on Ethics — Technology Resources

ABA resources on ethical obligations for attorneys using technology in legal practice.

NIST SP 800-188 — De-Identifying Government Datasets

NIST standards for de-identification of personal information from datasets, applicable to legal document processing.

Related Tools

PII Redaction ToolFree Contract ReviewContract ComparisonNDA ReviewEmployment Contract ReviewPlans & Pricing
Important Legal Disclaimer

Not Legal Advice: The information and analysis provided by Justee AI is for general informational purposes only and does not constitute legal advice. While we strive to provide accurate and helpful information, our AI-powered service is not a substitute for professional legal counsel.

No Attorney-Client Relationship: Use of Justee AI does not create an attorney-client relationship. Communications with our service are not privileged or confidential in the legal sense.

Consult a Professional: For specific legal matters, we strongly recommend consulting with a qualified attorney licensed in your jurisdiction. Legal requirements vary by location and circumstances, and only a licensed attorney can provide advice tailored to your specific situation.

Performance Estimates (*): All statistics, metrics, and numerical claims on this page — including review times, cost comparisons, accuracy percentages, and database size — are estimates based on internal testing, industry research, and typical use cases. Actual results vary based on document type, complexity, length, jurisdiction, and other factors. Cost comparisons reference publicly available average attorney rates and are not guaranteed savings. "1M+ laws and regulations" refers to the breadth of Justee's reference database and does not imply that every provision is checked against every law for every document.

By using our service, you acknowledge that you have read and agree to our Terms of Use and understand the limitations of AI-powered legal analysis. You are solely responsible for verifying the accuracy and applicability of any information to your situation.

Frequently Asked Questions

Justee produces redacted documents that work with any LLM — including AI models, AI tools, open-source AI, Mistral, and any other language model. The output is platform-agnostic clean text with structured placeholders.

In addition to standard PII like names and SSNs, Justee detects legal-specific identifiers including case/docket numbers, bar admission numbers, court references, EINs, and matter-specific codes commonly found in legal documents.

Yes. Justee uses typed, sequential placeholders (e.g., [PERSON_1], [ORGANIZATION_2]) that maintain relational context. LLMs can identify which entity is referenced where, analyze clause structures, and provide substantive assistance without real data.

The free tier handles individual documents efficiently. For firms processing large document sets regularly, Justee offers plans with batch processing capabilities. Each document typically processes in under two minutes.

Documents are encrypted with AES-256 during processing and permanently deleted immediately after redaction is complete. Justee does not store, cache, or retain any uploaded or processed documents.

Absolutely. If your firm runs a local LLM instance, Justee's redacted output can be used with it just as easily as with cloud-based models. Redaction adds a privacy layer regardless of where the LLM runs.

Justee focuses on text content redaction, detecting and replacing PII within the document body. For metadata concerns, attorneys should also consider using document metadata scrubbing tools as a complementary step.

Justee works with text-based documents only, including PDF, DOCX, and TXT files. Scanned PDFs without embedded text must be processed through OCR software first to convert them to searchable text before redaction.

PII is replaced with semantic placeholders like [PERSON_1], [SSN_1], and [ORGANIZATION_1] that preserve the document relational structure. LLMs can still understand which entity is referenced where without accessing any real data.

No. All processing occurs on Justee servers. Your documents are never sent to external AI platforms, third-party APIs, or any other outside service during the redaction process.

Justee uses multiple AI detection layers combined with pattern matchers tuned for legal entity types. While this provides broad coverage across 30 entity types, detection is not guaranteed to be 100% accurate. Always review the redacted output before submitting to any LLM.

Your original file is deleted from our servers immediately after redaction completes. The redacted version is deleted immediately after you download it.

We detect 30 entity types across personal and corporate data. Personal: names, SSNs, addresses, emails, phone numbers, dates of birth, driver's licenses, passports, bank accounts, credit cards, IBAN codes, routing numbers, medical licenses, Medicare IDs, NPI. Corporate: organization names, EINs, business and insurance policy numbers, SWIFT/BIC codes, case numbers, bar IDs, geographic locations.

Yes — you get free redactions per month without signing up. Create a free account for more redactions per month. Premium plans provide even larger limits.

Ready to Redact PII from Your Documents?

Upload your document above to get started. No sign-up required.

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Last updated: May 13, 2026

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