Epupp: Live Tamper your Web

Unknown author · Developer Tools

Open in Chrome Web Store

Users

139

Avg rating

5.0

Ratings

Updated

Jul 19, 2026

Media

1 item

Description

Make web pages you visit behave like you want them to with live tampering, or with userscripts, TamperMonkey style. Epupp lets you tamper with web pages, It has two modes of operation: 1. Live REPL connection from your editor to the web page, letting you inspect and modify the page on the fly, with or without the assistance of an AI agent. 2. Userscripts: Tampermonkey style. Saved scripts that you can run, automatically or manually, on pages you visit. The two form a powerful pair. The live REPL connection, while happily supporting one-off changes or data extractions, is also a very efficient and fun means to interactively develop userscripts.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
27
Description length
Characters in the listing description.
654
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
79

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.