One click, right beside your window
Omni appears at the edge of your current window. Start working together instantly — no new app to find.
Work where you work.
Sider Omni is the AI teammate that docks to the window you're in — docs, spreadsheets, email, notes, PDFs, browser — and gets things done right where the work happens. No switching apps. No copying context.
Supports macOS 15 and later · Sign in with Google · Works with any app window
Works beside the apps you already use
WordExcelPowerPointOutlookPagesNumbersKeynoteNotesObsidianNotionSafariChromeMailPreviewPDF ExpertSlack
How it works
A teammate that never leaves your window.
Omni doesn't live in a separate app. It lives beside yours — and follows it everywhere.
It moves when your window moves
Drag, resize, or switch apps — Omni stays attached to its window. Never a stray chat box on your desktop.
Fullscreen, without losing it
Go fullscreen and Omni shares the space side by side with your app. Stay deep in focus, task still in view.
One Omni per window
Your spreadsheet, your inbox, and your research tab can each have their own Omni — each with its own context, none colliding.
Multi-model, your choice
Every task can run on a different model — switch between leading models in one click and pick the one that fits the job and the price.
One chat, entirely your call
Stay focused on the current window, or ask Omni to reach across windows — one conversation, your command. Launch several tasks at once and let them run in parallel.
Getting started
Up and running in minutes.
Install, sign in, and meet Omni at your first window — no setup marathon.
Install & sign in
Download Sider Omni, install it, and sign in — that's all it takes to get started.
Authorize & pick your avatar
Click to approve the permissions Omni needs — then choose the avatar you like.
Open a window & just talk
Select any window, click the avatar at its top-right corner to open the Omni sidebar, and start chatting in plain language.
Scenarios
Everyday work, done beside you.
If it happens in a window, Omni can help with it. Here's where it earns its keep.
Reading & research
Turn what you're reading into what you need.
Summarize the paper, contract, or article on your screen — key points, deadlines, and numbers extracted in seconds, without leaving the PDF.
PreviewPDF ExpertSafariChrome
Notes & follow-up
Make your notes do the follow-up.
From a page of meeting notes, Omni pulls out action items, owners, and next steps — ready to drop into your task list.
NotesObsidianNotion
Kill the inbox backlog.
Summarize long threads, find the email you need, and draft replies in your voice — inside Mail or Outlook, not in a side window.
MailOutlookGmail
Presentations
From outline to deck.
Turn a document or rough notes into slides, tighten the copy, and write speaker notes — right inside Keynote or PowerPoint.
KeynotePowerPoint
Why Omni
Why Omni, not another AI app?
Most AI assistants live in their own window and make you bring the work to them. Omni does the opposite.
| Capability | Sider Omni | ChatGPT / Claude desktop | Microsoft Copilot |
|---|---|---|---|
| Works with any app — no integration needed | Yes | No | No |
| Understands what's on your screen | Yes | Partial* | Partial† |
| Follows your window when it moves | Yes | No | No |
| One agent per window — cross-window on request | Yes | No | No |
| Multiple models to choose from | Yes | No — provider-locked | No — provider-locked |
| Stays with you in fullscreen | Yes | No | No |
| No copy-paste or file exports to get context | Yes | No | Partial† |
* ChatGPT Computer Use operates on the whole screen, not per-window. † Copilot works only inside Microsoft apps.
Privacy
Private by design.
An assistant that reads your screen needs to earn trust. Here's how Omni is built for it.
Nothing is read silently
Omni only accesses window content when a task needs it, the model chooses a tool, and macOS permission allows it.
Separate permissions
Accessibility and Screen Recording are independent — and revocable. Normal chat works even without screen recording.
Local by default
Your conversations and artifacts are kept by a local agent runtime on your Mac, not in the cloud.
No ads. No data selling.
We don't sell personal information, and we never use your tasks to target ads at you.
FAQ
Questions, answered.
Every window deserves a teammate.
Download Sider Omni for macOS and give your first window a teammate. Install, sign in with Google, and you're ready.