Maskback

What it does

Maskback is a single offline HTML file that swaps names, emails, phone numbers, addresses, card and account numbers, URLs and IPs for placeholders before you paste text into ChatGPT or Claude, then restores the real values in the reply. Nothing leaves your browser. Pattern-based, so review before sending. Free up to 2,000 characters per pass; the paid file has no limit, file mode, a saved dictionary and exportable maps ($19 personal, $79 team).

One offline HTML file. Swaps names, emails, phone numbers, addresses, card and account numbers, URLs and IPs for placeholders before you paste text into ChatGPT or Claude, then restores them in the reply. Nothing leaves your browser.

One file, in your browser. Names, emails and numbers become placeholders; the reply comes back with the real details. Nothing leaves your machine. The free version below does the full redact and restore, up to 2,000 characters per pass. Paste anything with names, emails or numbers in it, press Redact, and read what comes out. Detection is pattern-based: read the output before you send it, every time. Prefer it on its own page? Open the free version . You can turn off your connection after it loads; it keeps working. It finds the shapes personal data usually takes. It is not a guarantee: it can miss things, and it can mask things that are not personal data. That is why the redacted text…from tallyframe.pages.dev

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