ChatPruner — DOM Cleaner for ChatGPT

Automatically prunes old ChatGPT messages from the DOM to keep your browser fast and responsive.

ChatGPT keeps every message loaded in the browser for the entire tab session. After a long conversation, this causes noticeable slowdowns — the page becomes sluggish, scrolling stutters, and responses feel slower. ChatPruner monitors your conversation in real time and removes old exchanges once you hit your limit, keeping the DOM lean and your browser responsive. HOW IT WORKS • Counts full conversation rounds (your message + ChatGPT's reply = 1 round) — never cuts mid-conversation • Warn-first mode: shows a small notification with a "Remove" button before pruning • Auto-remove mode: silently cleans up in the background • Undo button: restore removed messages with one click • Never prunes while ChatGPT is still generating a response • Live conversation count visible in the extension popup • Settings sync across your devices via Chrome Sync PRIVACY • Runs entirely in your browser — no data is collected or transmitted • No external servers, no analytics, no tracking • Settings stored locally via chrome.storage.sync • Fully open source