Which platforms does Sider Omni support?

Sider Omni is a macOS application that docks a sidebar to the windows of other apps.

Do I need to upload files for the AI to work with them?

No. The sidebar sees what's on your screen and acts on it directly where you're working, so nothing needs to be copied or uploaded.

Can I use more than one agent at a time?

Yes. Sider Omni supports one agent per window and can operate across windows when needed.

Sider Omni Sidebar

Give every Mac app an Agent Sidebar

Productivity

AI Agent

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Listing details

HiCyou directory record

Listed

Listed website: sider.ai
Directory record created: Sep 19, 2026
Last record update: Sep 19, 2026

Listing information

Overview
5 key features
3 use cases

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What is Sider Omni Sidebar

Sider Omni is a macOS AI assistant that docks as a sidebar to the window you're working in — documents, spreadsheets, email, notes, PDFs, and the browser. It can see what's on your screen and act on it directly in place, so you don't need to copy content or upload files. It supports multiple models, runs one agent per window, and can work across windows when needed.

Key Features

Agent sidebar that docks beside any Mac app

Reads on-screen content and acts on it directly, with no copying or uploading

Multi-model support with one agent per window

Cross-window operation when needed

Quick Google sign-in

Use Cases

Working with AI assistance alongside documents, spreadsheets, email, and notes
Asking questions about and acting on PDF content without leaving the app
Getting in-context help while browsing the web

Why do startups need this tool?

Sider Omni brings AI assistance directly into the apps founders and teams already use on macOS, reducing context switching and manual copy-paste workflows. Its per-window agents and multi-model support make it flexible for everyday tasks across documents, email, and browsing.