Now accepting early access · Apple & Microsoft Stores
Anonymize documents for AI.
Zero cloud.
Zero risk.
Upload DOC, TXT, MD or XLSX. Remove names, addresses, AHV numbers, and every trace of personal data — entirely on your Mac or PC. No internet. No external APIs. No data ever leaves your device.

§ 01 — The problem
Your documents contain more personal data than you think.
Contracts, medical records, client correspondence, financial spreadsheets — all carry hidden identifiers. The moment you paste them into ChatGPT or Claude, you are sending sensitive data to servers you do not control, often outside Switzerland.
Even "private" AI modes log your prompts for 30 days to 2 years. Swiss lawyers, doctors, and compliance officers cannot take that risk. Most simply avoid AI altogether — and lose the productivity edge.
§ 02 — The solution
Anonymo strips PII before it reaches any AI.
Detect
Advanced NLP recognizes Swiss-specific identifiers: AHV numbers, Swiss phone formats, cantonal addresses, names in German / French / Italian, IBANs, email domains, and more.
Tag & replace
Every detected entity is replaced with a consistent placeholder — PERSON_1, ADDRESS_ZURICH, AHV_001 — so cross-document context is preserved.
Export clean
Download anonymized, metadata-free files ready for ChatGPT, Claude, DeepSeek, or your internal LLM. Optional encrypted re-identification key stays on your machine.
Original · contract.docx
Sehr geehrter Herr Hans Müller, gemäss unserer Besprechung vom 14.03.2026 bestätigen wir die Übertragung von CHF 145'000 auf Ihr Konto bei der ZKB (IBAN CH93 0076 2011 6238 5295 7). Ihre AHV-Nummer 756.1234.5678.97 wurde an die zuständige Stelle in Zürich übermittelt.
Anonymized · contract.anon.docx
Sehr geehrter Herr PERSON_1, gemäss unserer Besprechung vom DATE_1 bestätigen wir die Übertragung von CHF 145'000 auf Ihr Konto bei der ZKB (IBAN IBAN_1). Ihre AHV-Nummer AHV_1 wurde an die zuständige Stelle in CITY_1 übermittelt.
§ 03 — Backed by
Built by a team that understands Swiss compliance.
Anonymo is developed by Sandsiv, a Swiss B2B software company recognized by Frost & Sullivan and Quadrant Knowledge Solutions for voice-of-customer analytics. We bring enterprise-grade engineering discipline to a tool designed for every Swiss professional who values data sovereignty.
F&S
Best Practices Award
QKS
SPARK Matrix Leader
SR
Gold Medal '22–'24
§ 04 — Early access
Be the first to use Anonymo.
We are preparing Anonymo for the Apple App Store and Microsoft Store. Join the waiting list to get early access, pricing updates, and a first look at the beta.