Demolens - Annotate, Zoom & Record on Screen

Tracking since Apr 23, 2026.

Changelog

• May 5, 2026
  description

  Demolens turns Chrome into a live presentation layer for demos, walkthroughs, training, and screen sharing. Draw arrows, shapes, and freehand annotations on any webpage, spotlight the exact area you want people to notice, zoom into important details, and trigger pre-saved overlays or form-fill snippets with a single hotkey — all without leaving your tab or interrupting your flow.
  
  Built for people who present live, Demolens helps product managers, sales engineers, customer success teams, UX researchers, trainers, teachers, webinar hosts, and anyone running live walkthroughs explain things more clearly on Zoom, Google Meet, Microsoft Teams, Webex, or screen share.
  
  Why Demolens stands out
  Most annotation tools slow presenters down. You have to open a toolbar, switch panels, or click through controls before you can do anything useful. In a live demo, that breaks momentum.
  
  Demolens is hotkey-first.
  One keystroke lets you draw. Another highlights or zooms. Another drops a saved overlay or fills a form instantly. Your audience sees a smooth, guided presentation — not a presenter searching through menus.
  
  Core features
  - Draw on any webpage in real time with arrows, rectangles, circles, freehand ink, and text
  - Spotlight and focus mode to dim distractions and guide attention to the right area
  - Smooth zoom to highlight buttons, charts, tables, forms, and small UI details
  - Customizable keyboard shortcuts for faster, interruption-free presenting
  - Pre-saved overlays for promo messages, pricing callouts, CTAs, and feature highlights
  - Form-fill snippets to instantly enter demo emails, company names, and sample data
  - Laser pointer mode for clearer screen sharing during meetings, webinars, and presentations
  - One-key clear to instantly remove all annotations and continue your flow
  - Works across web apps, dashboards, internal tools, staging sites, Google Docs, Slides, and more
  
  Who it’s for
  Demolens is designed for:
  - Sales engineers and SaaS teams running live product demos
  - Product managers leading stakeholder walkthroughs and reviews
  - Customer success and onboarding teams delivering live training
  - UX researchers guiding participants through prototypes or flows
  - Teachers, trainers, and educators teaching over screen share
  - Webinar hosts and speakers who need a cleaner, more visible on-screen pointer
  
  Best use cases
  Use Demolens for live product demos, customer onboarding, sales walkthroughs, webinar presentations, teaching sessions, internal training, stakeholder reviews, design critiques, UX research sessions, and recorded screencasts where clarity matters.
  
  Privacy first
  Demolens runs in your browser and is built for fast, focused presenting. No recording is required. No unnecessary setup. Your annotations stay within your session unless you choose to save them.
  
  Get started fast
  Add Demolens to Chrome, pin it to your toolbar, press your hotkey, and start presenting with more clarity and control.
  
  Demolens helps you guide attention, explain faster, and deliver cleaner live demos — right inside Chrome.

  Live demos shouldn't break your flow.
  
  Demolens is a presenter-grade overlay for Chrome that lets you annotate, zoom, spotlight, record, and reuse demo copy on any webpage — without ever leaving the page or opening a separate tool. Built for SaaS sales reps, customer success managers, founders, teachers, and webinar hosts who walk people through software live, every day.
  
  Hold one trigger key. Draw with a press. Switch tools with a single shortcut. Trigger a saved promo overlay or fill a demo form with a snippet without breaking eye contact with your audience. Press one shortcut to record the active webpage tab — no separate screen recorder needed. Everything stays on your machine.
  
  🎬 BUILT FOR LIVE DEMOS, NOT JUST SCREENSHOTS
  
  Most annotation tools are designed for marking up a screenshot after the fact. Demolens is designed for the moment you're presenting — on a sales call, in a webinar, screen-sharing with a customer, or recording a product walkthrough. The whole interface assumes you have one hand on the keyboard and a live audience watching.
  
  ✨ KEY FEATURES
  
  ✏️ Annotate any webpage live
  Pencil, rectangle, circle, oval, arrow, tick, cross, text, underline, highlight, eraser. All live, all on top of the real page, all keyboard-driven.
  
  🎯 Spotlight, focus blur & laser pointer
  Dim the rest of the page and emphasize one chart, one button, one paragraph. Keep your audience's eyes exactly where you want them.
  
  🔎 Smooth zoom mode
  Zoom into a specific UI element without losing your place. Exit and the page returns to normal — no broken styles, no scroll jump.
  
  🎥 One-shortcut tab recording
  Press Alt+Shift+R to start and stop. Records only the active webpage tab and your overlays — never the Chrome toolbar, never another window. Saves a local WebM file when you're done.
  
  🎙️ Optional voice narration
  Off by default. Enable it only when you want it, grant Chrome microphone permission once, and your narration is bundled into the local recording. No mic is ever captured silently.
  
  🏷️ Watermark snapshots and recordings
  Add a text watermark or upload a PNG logo. Choose any corner, scale to taste. Branded clips without a video editor.
  
  ⚡ Reusable form-fill snippets
  Stop typing the same demo email, demo company, or pricing example on every call. Save snippets once, assign a shortcut, fill any input field instantly during the demo.
  
  📢 Promotional overlay snippets
  Show a launch offer, talking point, or call-out as a polished centered overlay during webinars and product reveals. Custom duration or stay-until-dismissed.
  
  🗂️ Side-panel snippet manager
  Search, filter, edit, import, export, and merge snippets from a Chrome side panel. Move your demo script between machines or share a snippet pack with teammates.
  
  ⌨️ Presenter-first shortcuts
  Hold the trigger key, press a tool letter, draw, release. Built for muscle memory, not menu hunting.
  
  🪶 Non-destructive overlays
  Demolens draws above the page, never edits it. Zoom and focus modes restore the original page styles cleanly when you exit.
  
  🔒 100% LOCAL-FIRST PRIVACY
  
  Demolens does not require an account. Does not upload your screen, your snippets, or your recordings to any server. Does not sell or share your data. Settings can sync only through your existing signed-in Chrome profile, and only if you choose to. No third-party servers, no telemetry, no analytics on your demo content.
  
  Recordings are saved as local WebM files via the Chrome download dialog — they live on your machine, full stop.
  
  🎯 PERFECT FOR
  
  ▶ SaaS sales reps running discovery and product demos
  ▶ Customer success managers walking customers through features
  ▶ Founders running founder-led demo calls
  ▶ Teachers and trainers screen-sharing during lessons
  ▶ Webinar hosts and live content creators
  ▶ Solutions engineers and pre-sales teams
  ▶ Anyone who explains software live, on screen-share
  
  🚀 HOW IT WORKS
  
  1️⃣ Pin Demolens. Hold your trigger key on any webpage and the floating toolbar appears.
  2️⃣ Draw, highlight, spotlight, focus, or zoom — switch tools with one keystroke.
  3️⃣ Press Alt+Shift+R to record the active tab. Press again to save a local WebM.
  4️⃣ Open the side panel to manage snippets, assign shortcuts, and trigger form-fill or promo overlays mid-demo.
  
  💬 WHY DEMOLENS IS NOT ANOTHER WEB PAINT TOOL
  
  Drawing on a webpage is the easy part — many tools do that. Demolens is different because it is designed around the rhythm of an actual live demo:
  
  ▶ Trigger key + tool letter = one-handed control while screen-sharing
  ▶ Spotlight, focus, and zoom keep audiences on the part of the UI that matters
  ▶ Snippets remove the typing tax of repeating the same demo data on every call
  ▶ Recording starts in one shortcut — no second app, no toolbar capture, no surprise upload
  ▶ Local-first means your demo content and recordings stay on your machine
  
  Stop fumbling with a screenshot editor mid-demo. Stop retyping demo data on every call. Stop opening a separate recorder. Press the shortcut. Demo. Done.
  
  📥 GET STARTED
  
  Click "Add to Chrome", pin Demolens, hold your trigger key on any webpage, and start drawing. Open the side panel to add your first snippet. Press Alt+Shift+R to record your first demo.
  
  Have feedback or feature requests? We read every one.

• May 5, 2026
  short_description

  Draw, annotate, highlight, zoom & overlay on any webpage with hotkeys - for live SaaS demos, sales, teaching & webinars.

  Draw, annotate, highlight, zoom, record & overlay on any webpage with hotkeys - for live SaaS demos, sales, teaching & webinars.

• May 5, 2026
  name

  Demolens - Annotate, Draw & Zoom on Screen

  Demolens - Annotate, Zoom & Record on Screen

• May 5, 2026
  host_permissions

  (empty)

  <all_urls>

• May 5, 2026
  permissions

  storage, activeTab, sidePanel, tabs

  storage, sidePanel, tabCapture, offscreen, activeTab, downloads, tabs, declarativeNetRequestWithHostAccess

• Apr 28, 2026
  short_description

  Draw, annotate, highlight, zoom & overlay on any webpage with hotkeys — for live SaaS demos, sales, teaching & webinars.

  Draw, annotate, highlight, zoom & overlay on any webpage with hotkeys - for live SaaS demos, sales, teaching & webinars.

Permissions & access

Permissions

storagesidePaneltabCaptureoffscreenactiveTabdownloadstabsdeclarativeNetRequestWithHostAccess

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