---
title: web-edit 0.1a0
link: https://simonwillison.net/2026/Oct/12/web-edit/
source: simonwillison-net
published: 2026-10-12T15:54:36Z
updated: 2026-10-12T15:54:36Z
first_seen: 2026-10-13T18:08:43.541012300Z
labels:
- ai
- codex
- generative-ai
- llms
- projects
- python
- tailscale
summary: 'Release: web-edit 0.1a0 I was working on a project from my phone using Codex Remote when I found myself wanting to edit a credentials file without round-tripping those credentials through the LLM itself. So... I had Codex and GPT-6 Astra Extra High build this Python web app which provides a web UI for viewing and editing files in a folder. It''s intended to be run over Tailscale, so I can have an agent start this running and then edit files via my Tailscale network directly from my phone. Here''s the interface for browsing files in a folder: Editing uses CodeMirror 6 - I was going to use Monaco but that still doesn''t have a great mobile experience yet. Tags: projects, python, ai, tailscale, generative-ai, llms, codex'
content: extracted
html: 2026-10-12-web-edit-0-1a0.html
remote_preview:
  url: https://static.simonwillison.net/static/2026/web-edit.webp
  alt: Screenshot of a web file manager interface. Header reads "WORKSPACE" above the title "Files", with buttons "Refresh", "Upload files" and "New file" (dark green). A breadcrumb shows "web-edit / web_edit / static". A table with columns "Name", "Size", "Modified" lists four files, each with "Download ↓
---

I was working on a project from my phone using Codex Remote when I found myself wanting to edit a credentials file without round-tripping those credentials through the LLM itself.

So... I had Codex and GPT-6 Astra Extra High build this Python web app which provides a web UI for viewing and editing files in a folder. It's intended to be run over Tailscale, so I can have an agent start this running and then edit files via my Tailscale network directly from my phone.

Here's the interface for browsing files in a folder:

![Screenshot of a web file manager interface. Header reads \"WORKSPACE\" above the title \"Files\", with buttons \"Refresh\", \"Upload files\" and \"New file\" (dark green). A breadcrumb shows \"web-edit / web_edit / static\". A table with columns \"Name\", \"Size\", \"Modified\" lists four files, each with \"Download ↓\" and \"Delete\" links: \"app.css\" 8.4 KB Oct 12, 2026; \"app.js\" 671.5 KB Oct 12, 2026; \"index.html\" 4.3 KB Oct 12, 2026 (underlined, as if hovered); \"THIRD_PARTY_LICENSES.txt\" 32.3 KB Oct 12, 2026. Below the table: \"Images under 2 MB appear inline. Select a text file to edit it.\" A panel below is labelled \"UPLOAD QUEUE\" with heading \"Add files\" and a \"Close\" button. It has a \"Destination folder\" text field containing \"web_edit\", then a dashed drop zone reading \"Choose files or drop them here\" and \"Set a path and filename for each file before uploading.\" with a \"Choose Files\" button and the text \"no files selected\". A greyed-out \"Upload files\" button sits at the bottom right.](https://static.simonwillison.net/static/2026/web-edit.webp)

Editing uses [CodeMirror 6](https://codemirror.net) - I was going to use [Monaco](https://microsoft.github.io/monaco-editor/) but that still doesn't have a great mobile experience yet.