NotebookLM web client guide
Working Definition
The "web client" refers to the browser-based interface — the primary way people accessed the AI research assistant before native mobile apps arrived in May 2025, and still the richest surface for desktop work. This page covers browser compatibility, keyboard shortcuts, the multi-pane layout, and the ways the browser version differs from the iOS and Android apps.
Browser support and requirements
The research notebook's web client is built as a modern single-page application. It requires a browser that supports ES2020 JavaScript, the WebCrypto API, and Service Workers. In practice that means any version of Chrome, Edge, or Brave released after mid-2021, Firefox 90 or later, and Safari 16 or later. Older Safari builds — notably Safari 15, which ships on macOS Monterey — have known issues with the audio playback component and may show a blank panel where the audio overview controls should appear. The fix is to update Safari or switch to a Chromium-based browser.
The tool does not require any browser extension to function. Some corporate environments deploy content-security-policy headers or proxy configurations that block the domains the tool calls for model inference. If you see a blank interface after sign-in on a managed device, the likely cause is a proxy or CSP rule rather than a browser compatibility problem. Your IT administrator will need to allowlist the relevant Google API domains.
Performance varies noticeably across browsers when handling large notebooks. In informal testing with a notebook containing fifty long PDFs, Chrome and Edge consistently produced chat responses roughly 15-20 percent faster than Firefox on the same machine. The difference is smaller on notebooks with fewer sources. Safari on Apple Silicon hardware performs comparably to Chrome for text-only notebooks but shows slightly higher latency when audio generation is involved, likely due to WebKit's handling of streaming audio responses.
The three-pane layout
The web client's core workspace divides the screen into three resizable panels: the source panel on the left, the chat panel in the centre, and the notes panel on the right. This layout is the clearest functional difference between the browser experience and the mobile app, where the same three panels appear as a vertical stack that you scroll through rather than viewing side by side.
The source panel lists every document, link, and pasted item in the notebook. Clicking any source opens a preview pane where you can read the full text and see which passages have been cited in recent chat turns. Sources can be dragged to reorder, toggled off temporarily to exclude them from the active context, or deleted permanently. The panel also hosts the source-add button and the source-search bar (keyboard shortcut: Ctrl/Cmd+K), which does a full-text search across all your sources without sending the query to the model.
The chat panel is where you interact with the grounded research assistant. Each answer displays inline citation numbers; clicking a number opens a highlight in the source panel showing exactly which passage the model drew from. The chat panel also hosts the audio overview generation controls and, for Plus subscribers, the notebook-sharing button.
The notes panel on the right collects every note the assistant has produced — study guides, briefing docs, timelines, and manually saved chat responses. Notes can be edited, tagged, reordered, and exported as a Google Doc or plain text. The notes panel is the feature most users under-use initially because it is not obviously interactive; it takes on more value once a notebook has dozens of saved notes from different sessions.
Keyboard shortcuts
The web client has a modest but useful shortcut set. Ctrl/Cmd+Enter submits the current chat prompt. Escape closes any open modal or preview pane. Ctrl/Cmd+K opens the source search. Tab cycles focus between the three panels, which helps keyboard-only users navigate without a mouse. In the chat input, typing / at the start of a message opens a command palette listing preset prompts — "Create a study guide", "Summarise all sources", "Find connections between sources", and others. These slash commands are the quickest way to generate structured outputs without typing a full prompt from scratch.
The audio overview player has its own shortcuts: Space pauses or resumes playback, Ctrl/Cmd+Left/Right skips backward or forward by 30 seconds, and M mutes. These shortcuts are active only when the audio player has browser focus, which you can confirm by checking that the player's background is highlighted.
Multi-tab behaviour
Each browser tab holds an independent notebook session. You can run five different notebooks simultaneously in five tabs, which is useful when moving material between a research notebook and a writing notebook, for example. The sessions do not communicate with each other and do not share a conversation thread. If you need to reference something from notebook A while working in notebook B, the fastest approach is to copy the relevant text from the note pane in tab A and paste it as a source in tab B rather than trying to merge the notebooks.
One edge case worth knowing: if you open the same notebook in two tabs and both tabs attempt to save a note at the same time, the second save may trigger a sync-conflict warning. The interface presents a simple "keep this version" or "keep other version" dialogue. There is no automatic merge. For shared notebooks where multiple people may be writing notes simultaneously, this means the last-writer-wins rule applies — a limitation the product team has flagged as a future improvement.
Browser compatibility summary
| Browser | Supported | Notes |
|---|---|---|
| Chrome 100+ | Full support | Recommended for best audio performance |
| Edge 100+ | Full support | Chromium-based; behaviour matches Chrome |
| Firefox 90+ | Full support | Slightly slower response streaming |
| Safari 16+ | Full support | Audio controls may differ on iOS Safari |
| Safari 15 or earlier | Partial — audio broken | Update recommended |
| Brave | Full support | Disable aggressive fingerprint shielding if sign-in fails |
| Internet Explorer (any) | Not supported | ES2020 not available |
Web client — frequently asked questions
Questions specific to using the browser-based interface, answered concisely.
Does the web client work without a Google account sign-in?
No. Signing in with a Google account is required. This is how the tool associates notebooks with an account boundary for data handling and source-limit enforcement. If you want to try the tool without committing to an account, you can create a free Google account for that purpose — there is no trial mode that bypasses sign-in.
Can I use the web client on a Chromebook?
Yes. Chromebooks run Chrome natively and the web client works without any additional configuration. Because Chromebooks are often used in education settings, the tool's performance on lower-specification Chromebook hardware is worth noting: the interface itself is lightweight and responsive, but generating an audio overview on a slow connection may take longer than on a desktop browser with a faster link.
Is there a dedicated desktop application outside of the browser?
Not as of mid-2025. The tool is available as a browser-based web client and as native mobile apps for Android and iOS. There is no dedicated macOS or Windows desktop application. If you want a near-native desktop experience you can install the web client as a Progressive Web App (PWA) from Chrome's address-bar install prompt; this opens it in a standalone window without browser chrome.
How do I use the slash-command palette in the chat input?
Type a forward slash ( / ) at the very beginning of a new chat message. A floating menu appears listing preset prompts grouped by output type: summaries, study aids, timelines, FAQs, and briefing documents. Click any item or continue typing to filter the list. Pressing Enter on the highlighted item inserts the full prompt text into the input field so you can customise it before submitting. The palette closes if you type a character that does not match any command name.
Open the web client and try a notebook
The fastest way to understand what the three-pane layout makes possible is to load a real document and run a few questions. It takes under two minutes to reach a cited answer.
Walk through the first-notebook flowConnected reference pages
If you are comparing the browser experience to the native apps, the mobile app guide documents the features that are exclusive to Android and iOS — particularly offline audio and the share-sheet extension. For a full map of all the surfaces you encounter when using the tool, visit the platform overview. Regional access questions — whether the tool is available in your country, and how Workspace accounts route differently from personal accounts — are covered on the online access guide. The features overview is the canonical list of everything the tool can do regardless of which surface you are using.
For deeper technical context, the Gemini model architecture page explains what happens server-side when you submit a prompt from either the web client or the mobile app. The audio overviews guide covers the full set of playback modes and customisation options, most of which are more easily accessed on the web client's larger screen. The comprehensive guide walks through every major workflow in order. For an independent look at how web-based AI tools handle user data, the OECD AI policy resource on privacy is a useful reference for teams doing their own due-diligence review. The pricing page clarifies what the Plus tier adds for power users of the web interface.