Improv - AI Userscript Creator

Name: Improv - AI Userscript Creator
Author: ArchiveBox

Create custom userscripts for any website using AI. Fix bugs, add features, and customize pages with LLM assistance.

As of June 2026, Improv - AI Userscript Creator has 24 users in the Developer Tools category.

ArchiveBox Developer Tools

Chrome Web Store ↗.crx

Users+71.4%

Rating0%

—

— reviews

Reviews0%

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Version

0.1.0

Manifest V3

History

4 snapshots

Tracking since Apr 19, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 19, 2026	14	—	—	0.1.0
May 16, 2026	16	—	—	0.1.0
May 25, 2026	14	—	—	0.1.0
Jun 4, 2026	20	—	—	0.1.0
Now	24	—	—	0.1.0

Permissions & access

Permissions: storageactiveTabscriptingtabssidePanelwebNavigation
Host access: <all_urls>

Screenshots

Improv - AI Userscript Creator screenshot 1

Improv - AI Userscript Creator screenshot 2

Improv - AI Userscript Creator screenshot 3

Improv - AI Userscript Creator screenshot 4

Improv - AI Userscript Creator screenshot 5

About

Live-edit websites with AI assistance to work around site limitations, add custom buttons, customize appearance, and speed up workflows.

Bring your own OpenAI API key! To get started click the extension icon in the menubar, and then the gear icon in the sidebar once it opens. After that you can navigate to any site you want to customize, open the sidebar, click + New Mod at the top.

1. Start by choosing regions of the page to customize (powered by react-grab)
2. Chat with the LLM to describe the changes you want it to make to the page
3. The LLM will generate a userscript mod and the page will auto-refresh to apply it
4. Iterate to ask for tweaks or changes if necessary, the LLM gets a fresh screenshot + html each time
5. Hit save once you're done! After that, your custom mod will apply every time you visit that page.

You can manage the list of active mods for each domain in the sidebar, and failing mods will be auto-marked with a red status icon, making AI-assisted maintenance over time easy.

Extension also includes support for importing and modifying existing user scripts from popular repos like Greasyfork and OpenUserJS.org. After importing an existing script, you can further customize it using the same LLM chat interface.