Tallyframe
Maskback
Redact before you paste into an AI. Restore after.
One HTML file. Paste text that contains names, emails, phone numbers or account numbers. Press Redact and each one becomes a placeholder like [NAME_1]. Paste the placeholder version into ChatGPT or Claude. Paste the reply back, press Restore, and the real values return. Once this page has loaded, nothing leaves your browser: no server, no account, no upload.
Try it now, free
The free version below does the full redact and restore, up to 2,000 characters per pass. Pattern-based detection: read the output before you send it, every time.
Prefer it on its own page? Open the free version.
What it looks for
- Names (a dictionary you control, plus a conservative capitalised-name rule)
- Email addresses
- Phone numbers, North American and international
- Street addresses
- Card numbers that pass the Luhn check, and other long account numbers
- URLs and IPv4 addresses
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 stays on screen for you to read before you copy it.
The paid file
- No length limit (the free page stops at 2,000 characters per pass)
- File mode: open a .txt, .csv or .md file, redact it, download the result; restore the same way
- A custom dictionary of names and terms you always want masked, saved in your browser
- Exportable token maps, so a reply from an earlier session can still be restored
- One file, yours to keep, no subscription, works offline
Personal, 49.00 USD, one purchase, for one person. Team, 149.00 USD, one purchase, for the people of one organisation.
The paid file is not on sale yet. This line changes to a checkout button when the store is open. The free version above is complete for anything under 2,000 characters.
Delivered by the checkout provider immediately after payment, as a download link on the receipt. Refund in full within 14 days if it does not do what this page says, no questions asked.
Plain answers
- Who is behind this?
- Tallyframe, a one-person software studio. No names or faces here, by design: the tool exists so that people can keep their own details private, and the studio keeps the same rule for itself. Everything the tool does is visible in the one file you download.
- Does my text go anywhere?
- No. After the page loads there are no network requests. You can turn off your connection and it keeps working. There is no analytics script on this site.
- Will it catch everything?
- No tool can promise that. Detection is pattern-based. Names are the hardest case, so the rule for names is deliberately cautious and you can add your own names to the dictionary in the paid file. Review before sending.
- What are the terms?
- You buy a copy of a file for your own use (personal) or your organisation's use (team). Do not resell or redistribute it. You are responsible for reviewing what you send to any third party. The seller is not liable for what you send or fail to send. Nothing here is legal advice.