kapynDev Tools

Pasted File Editor

Pasted File Editor is a new tool that emulates Claude's file attachment functionality. It allows users to paste large amounts of text or drag files directly into a textarea, which are then treated as file attachments. This prototype, built using Codex, aims to streamline the process of handling large text inputs and file uploads in AI development workflows.

Simon Willison·Jun 2, 2026

Opening Kapyn…