Download of PasteTXT 1.1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Productivity Tools, more precisely Clipboard Tools. We recommend checking the downloaded files with any free antivirus. The actual developer of this free software for Mac is Juan Enrique Hernández Pérez.
From the developer:
PasteTXT lets you copy and paste your texts everywhere with just one click. PasteTXT is a text collection manager application that lets you compose texts quickly, by showing your text collection in a floating window that appears on top of any application you are working on, and allows you to select a text to copy and paste it instantly.
You may want to check out more Mac applications, such as StringEscaper, Pastarena or Clipster, which might be related to PasteTXT.