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DocSanitizer
Censor private PII & shrink docs to fit any AI prompt
DocSanitizer is a zero-cloud, privacy-first document sanitizer. Censor private data & shrink docs to fit into any AI prompt. 100% on-device, no telemetry, no cloud.
Hey Product Hunt!
I built DocSanitizer out of personal frustration with everyday AI workflows.
We all paste logs, contracts, PDFs, and internal notes into ChatGPT, Claude, and Gemini. But doing so creates two massive problems:
Accidental PII leaks: Sending client emails, credit cards, internal IPs, or medical identifiers to cloud LLMs violates compliance and common sense.
Token fluff: Raw documents are packed with repeated headers, broken line wraps, and whitespace that burn through context windows and degrade model accuracy.
Most anonymizers rely on cloud APIs-which defeats the entire purpose of privacy.
DocSanitizer takes a zero-cloud approach:
High-performance Rust core: Everything runs locally on your device.
Transient RAM execution: Documents live in temporary memory during processing and are wiped immediately. Zero telemetry, zero analytics, zero network requests.
Domain Pattern Library: Out-of-the-box support for financial data, medical codes (MRN, ICD-10, NDC), and court filings (FRCP 5.2 masking), plus custom regex.
Token Analytics: Accurate on-device BPE token counts for OpenAI and Claude so you know exactly what you’re sending.
It's live on desktop and web, with iOS and Android builds planned. I’d love your feedback on our redaction patterns and token optimization rules-what features or domain libraries would make this indispensable for your workflow?
Thanks for checking it out!
About DocSanitizer on Product Hunt
“Censor private PII & shrink docs to fit any AI prompt”
DocSanitizer was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #149 on the daily leaderboard. DocSanitizer is a zero-cloud, privacy-first document sanitizer. Censor private data & shrink docs to fit into any AI prompt. 100% on-device, no telemetry, no cloud.
On the analytics side, DocSanitizer competes within Privacy, Developer Tools and Artificial Intelligence — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how DocSanitizer performed against the three products that launched closest to it on the same day.
Who hunted DocSanitizer?
DocSanitizer was hunted by Elad Yifee. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of DocSanitizer including community comment highlights and product details, visit the product overview.
Elad Yifee