01 / Extension · Chrome
The agent, on
every page.
Right-click any selection — explain, review or fix it with the free RareMatter agent, without leaving the tab. No subscription, no context switch, same wallet.
Right-click
Four actions, one menu
Explain it, review it, fix it — or ask about the whole page. The answer lands in a card pinned to the corner, brand-crafted and code-aware.
Selection-aware
Reads what you highlighted
Highlight code anywhere — docs, a PR diff, a Stack Overflow answer — and get a real review or fix, severity ordered.
Same wallet
Free, or your Atoms
Works anonymously with fair limits. Paste your rm_ token and it spends the same 100 daily Atoms as Web, Chat, CLI and Cloud.
Zero noise
Nothing runs until you ask
The content script only draws the reply card. Nothing is sent anywhere until you right-click and choose an action — no keystrokes, no browsing history.
Install · 60 seconds
Unzip.
Load unpacked.
Download & unzip. Save extension.zip anywhere — Downloads is fine.
Load it. Open chrome://extensions, turn on Developer mode, click Load unpacked, pick the unzipped folder.
Use it. Pin the ⚛ icon for the popup — or just right-click any page: Explain · Review · Fix.
Extension FAQ
Before you
grant access.
Is it really free?
Yes. Anonymous runs ride the free model with fair limits — no account needed. Connect your token and runs spend the same 100 daily Atoms as every other RareMatter surface. Pro models work there too, if you're on Pro or bring your own key.
Does it read my browsing?
No. The content script listens for your right-click action and draws the reply card — that's all. A request goes out only when you explicitly pick an action or hit Run, and it contains only your selection or the current page's text. Nothing is logged on your side beyond normal server request handling.
Edge, Firefox, Arc?
Anything Chromium-based loads it today via Load unpacked (Edge, Arc, Brave, Vivaldi). Firefox needs the zip converted with its extension loader — coming if there's demand.
Start