One AI sidebar
for the entire web.
Rexa reads the page you're on, your documents and the live web — then answers, summarizes, talks back by voice and clicks through tasks for you. All in one sidebar, on any site.
Loved by early users
- Free to start
- No credit card
- Works on any site
AI startups raised $48B in Q1 2026, up 22% YoY 1 — led by agentic tools 2.
Ask anything, on any site…
One sidebar — works on every site you already use
01 One extension, everything
Every AI tool you reach for, docked to the side of the web.
Rexa folds a dozen assistants into a single sidebar — so you stop tab-hopping and start finishing things.
Chat with any page
Rexa reads the page you're on — articles, dashboards, docs, threads — and answers in context. No copy-paste.
Chat with your documents
Upload PDFs, slides and docs into a Knowledge Base. Ask across folders and get answers grounded in your files with inline citations.
Your Q3 report shows a 31% lift in retention1.
Live web search
Grounded, up-to-the-minute answers with numbered [n] sources you can click.
Live voice calls
Talk to Rexa out loud — optionally share your screen — for a real-time conversation.
Do-it-for-me agent
Give it a goal and watch it navigate, click and fill forms in your real tab — confirming before anything important.
Instant replies
One-click replies and rewrites right inside Gmail, Slack, LinkedIn, Outlook, X and Reddit.
Summarize PDFs
Open any PDF and get the gist — then ask follow-up questions about it.
Summarize videos
Pull the transcript from YouTube, TikTok, Instagram, X and Facebook and summarize it.
Screenshot to ask
Drag to capture any region of the screen and ask a vision model about it.
Writing assistant
Grammar fixes and rewrites — improve, shorten, or change tone — on any text field you type in.
Select & act
Highlight text anywhere to explain, translate, summarize or rewrite it from a floating menu.
50+ languages
Pick your language once — every answer comes back in it.
Light & dark, your way
A minimal interface that follows your system theme and stays out of the way.
02 Where the magic happens
Not just a chatbot. A copilot that does the work.
Reply in your voice, without leaving the inbox
A ✦ Reply button appears right inside Gmail, Slack, LinkedIn, Outlook, X and Reddit. Generate a full draft, paraphrase, change the tone, shorten or fix grammar — then send.
- 6 platforms supported
- Tone & length controls
- Grounded in the thread
Hand it a goal. Watch it click through the web.
The agent perceives the live page, narrates each step, and navigates, types and fills forms in your real tab. It grounds personal answers in your profile and always confirms before anything important.
- Works on any site
- Confirms before submitting
- Narrates every action
Talk it out loud — grounded in real sources
Start a live voice call, optionally share your screen, and have a natural conversation. Web search keeps answers current, with clickable [n] citations you can verify.
- Real-time voice
- Optional screen share
- Cited, current answers
Listening…
The keynote starts at 9am PT and the lineup was just updated1.
03 Up and running in a minute
Three steps to your AI sidekick.
Add Rexa to Chrome
Install in one click and pin it. Sign in with Google — no credit card, no setup.
Open the sidebar anywhere
Hit the side-panel button on any page. Rexa reads what you're looking at and is ready to help.
Ask, or let it act
Type or talk. Get answers with sources, draft replies in place, or hand it a goal to finish for you.
04 Questions
Good to know.
Everything you might wonder before adding Rexa to your browser.
What exactly is Rexa AI?
Rexa is an AI sidebar for Chrome. It docks to the side of any page and lets you chat with that page, your own documents and the live web — plus reply, summarize, translate, take voice calls and run agent tasks, all without leaving the tab you're in.
Which sites does it work on?
The sidebar and most tools work on every website. In-page features like instant replies are tuned for Gmail, Slack, LinkedIn, Outlook, X and Reddit, while video summaries support YouTube, TikTok, Instagram, X and Facebook.
Do I need to pay or add a credit card?
No. You sign in with Google and start using Rexa for free — no credit card required.
Can it really fill forms and click for me?
Yes. The do-it-for-me agent perceives the live page and performs actions in your real, logged-in tab — navigating, typing and selecting. It narrates each step and asks you to confirm before anything important, like submitting or paying.
How does it answer from my own documents?
Upload files into your Knowledge Base and Rexa builds a private, searchable index. When you ask a question it retrieves the most relevant passages and answers with inline citations back to the source file and page.
What languages are supported?
More than 50. Choose your language once in settings and every response — chat, replies, summaries — comes back in it.
Give every tab a brain.
Add Rexa to Chrome and turn the browser you already live in into your most capable assistant.