Penname

Penname gives private details a pen name before you share a document with an AI assistant — and brings the real details back afterwards. Paste a donor letter, note or report. Penname finds private details — names, organisations, emails, phone numbers, addresses, gift amounts, dates, IDs and fund codes — and replaces each one with a realistic stand-in. You review every replacement, copy the safe version into your AI assistant, then restore the real details in one step. HOW IT PROTECTS YOU - Everything runs on your device. No server, no analytics, no network access. - The key file that reverses the replacement is AES-256 encrypted with your own passphrase and never leaves your device. - A private, encrypted Activity log records what you protected and restored — metadata only, never the values — and you can erase or export it anytime. - A safety check tells you which document a key file belongs to. WHO IT IS FOR Nonprofits, fundraisers and small teams who want the productivity of AI assistants without pasting supporters' personal data into them. HONEST LIMITS Penname reduces the personal data you share; it does not make you GDPR compliant by itself and it is not a legal tool. Always review the safe copy — the app shows you everything it found and lets you add anything it missed.