Common questions.
Technically, pseudonymization: aliases are reversible with the mapping file that only you hold — that reversibility is what makes the AI round-trip possible. Under most privacy laws (GDPR, Korea's PIPA), pseudonymized data is still personal data, so handle safe copies accordingly. Remove and mask are one-way; a copy is only anonymous if nothing in it can be linked back.
No. Parsing, detection, and transformation all run in JavaScript inside your open tab. Nothing is uploaded to a Data Alias server. If you choose Save to Google or Save to Notion, only the reviewed, protected copy is sent — to Google directly from your browser, or to Notion through our server, which does not store it.
CSV, TXT, XLSX, JSON, PDF, and DOCX. Most formats are capped at 10 MB; CSV streams up to 100 MB and 200,000 rows on Pro. PDF is text-layer only — no OCR yet — and PDF/DOCX download as an AI-ready .safe.txt extract. XLSX, JSON, PDF, and DOCX are Pro features, free to use during the beta.
No. The Free plan works without any sign-up. Accounts arrive together with Pro — and even then, file processing stays in your browser on every plan.
Pro will be $9 a month ($79 a year) once the beta ends — see the Pricing page. Until then everything, including every Pro feature, is free.
When paid plans launch, your first purchase comes with a 14-day no-questions-asked refund. The full policy is in the terms.
No. No automated detector catches every sensitive value, and any tool claiming otherwise is overselling. That is why the review step exists: check the output before you share it.
Yes. The same source value always maps to the same alias, so joins and repeated identifiers stay analyzable. That holds across every row of a file and across all files in one batch. To keep the mapping stable across separate sessions — so Monday's PERSON_001 is still Friday's PERSON_001 — save it to an alias vault.
Yes. Rules are applied only when you generate the safe copy. You can toggle any column off, change the rule, or reset the session at any time.
No. File contents, column values, and aliases are never logged or sent to a server. Nothing about your file persists between sessions unless you explicitly create an alias vault — an opt-in store, encrypted with your passphrase and kept only in this browser, that carries your alias mappings to the next file. Without a vault, everything is discarded when you reset or reload.