Maskback

About

Maskback is an offline HTML tool that operates entirely within your browser. It replaces sensitive details like names, email addresses, phone numbers, physical addresses, payment card and account numbers, URLs, and IP addresses with placeholder text before you paste content into AI platforms such as ChatGPT or Claude. The original values are then restored in the AI's response. This process is pattern based, so users should review the text before submission. The free version handles up to 2,000 characters per operation, while the paid version offers unlimited use, includes a file mode, a saved dictionary, and exportable mapping files. Pricing is set at $19 for personal use and $79 for teams.