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[ARTICLE · art-19628] src=simonwillison.net pub= topic=ai-tools verified=true sentiment=↑ positive

Pasted File Editor

Simon Willison released a new web tool called Pasted File Editor that automatically converts large text pastes into file attachments, mimicking a feature from Claude AI. The tool, built using Codex desktop, also supports direct file opening with image thumbnails and drag-and-drop functionality.

read1 min publishedJun 2, 2026

Tool: Pasted File Editor I really like how you can paste a large volume of text into claude.ai (or the Claude desktop/mobile apps) and it will detect it as a large paste and turn it into a file attachment instead.

I decided to have Codex desktop build me a version of that as a prototype.

You can also open files directly - including images which will be shown as thumbnails - or drag files onto the textarea.

Tags: javascript, tools, ai-assisted-programming, claude, codex

source & further reading
simonwillison.net — original article datasette 1.0a32 The solution might be cancelling my AI subscription Quoting Karen Kwok for Reuters Breakingviews
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