How to use Rexa AI

01 Getting started

Install Rexa & open the sidebar

Rexa lives in a side panel that opens on any page in one click — no copy-pasting between tabs.

1. 1Add Rexa to Chrome from the Web Store and pin it to your toolbar.
2. 2Open any web page, then click the Rexa icon (or use the side-panel shortcut) to dock the sidebar.
3. 3Sign in with Google once — no credit card. Pick your language in Settings and you're ready.

• Set a keyboard shortcut at chrome://extensions/shortcuts for instant access.
• The sidebar follows you across tabs and reads whatever page you're on.

02 Page chat

Chat with any page

Ask questions about the article, dashboard, thread or doc you're viewing — Rexa reads the page for context, so you never paste anything.

1. 1Open the sidebar on the page you want to ask about.
2. 2Type your question in the composer — e.g. “What's the refund policy here?”
3. 3Rexa answers grounded in the page, and you can keep asking follow-ups in the same thread.

• Use the ✦ Summarize action for a one-tap TL;DR of long pages.
• Switch reply language anytime from the language pill.

03 Knowledge Base

Chat with your documents

Upload PDFs, slides and docs into folders, then ask across them and get answers with inline citations back to the exact file and page.

1. 1Open the Library from the composer's book icon and create folders.
2. 2Drag in PDFs, Word, PowerPoint, images or text — Rexa indexes them privately.
3. 3Hit “Chat with this folder” and ask. Answers cite the source file and page as [1], [2]…

• Scanned PDFs and images are OCR'd automatically.
• Scope a chat to one folder or specific files for sharper answers.

04 Live web

Search the live web, with sources

Get current, grounded answers with numbered citations you can click and verify — not stale guesses.

1. 1Toggle the globe icon in the composer to enable live web search.
2. 2Ask anything time-sensitive — news, prices, docs, launches.
3. 3Click the [n] chips in the answer to open each source.

• Great for research — Rexa blends page context, your docs and the web.

05 Voice

Talk to Rexa with live voice calls

Start a real-time voice conversation — optionally share your screen — and the whole transcript is saved back to your chat for later.

1. 1Tap the phone icon to open the call panel, choose Voice or Voice + screen.
2. 2Allow microphone access once, then just speak — Rexa replies out loud.
3. 3End the call and the conversation is saved into your normal chat history.

• Turn on “Answer from my Knowledge Base” to ground the call in your files.
• Use headphones for the cleanest audio.

06 Agent

Hand tasks to the do-it-for-me agent

Give Rexa a goal and watch it navigate, click and fill forms in your real tab — narrating each step and confirming before anything important.

1. 1Open the agent from the header robot icon and describe your goal.
2. 2Watch it perceive the page and act step by step, in your logged-in tab.
3. 3Approve the confirmation prompt before it submits, pays, or sends.

• It grounds personal details in your profile and Knowledge Base.
• You can stop or take over at any moment.

07 Replies

Write instant replies in your inbox

A ✦ Reply button appears right inside Gmail, Slack, LinkedIn, Outlook, X and Reddit — draft, paraphrase, change tone, shorten or fix grammar, then send.

1. 1Open a message or composer on a supported platform.
2. 2Click ✦ AI reply to generate a draft grounded in the thread.
3. 3Use the ▾ menu to change tone or length, then insert and send.

• Toggle each platform on/off in Settings → Instant Reply.

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