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siddharthvaddem/openscreen

📈 Trending36,468TypeScriptAudience · developerComplexity · 3/5ActiveLicenseSetup · moderate

TLDR

Free, open-source desktop app for recording your screen and turning it into polished product demos with zoom effects, annotations, and custom backgrounds, no subscription required.

Mindmap

mindmap
  root((OpenScreen))
    What it does
      Screen recording
      Zoom effects
      Annotations
      Custom backgrounds
    Features
      Timeline editor
      Speed adjustment
      Crop and trim
      Export options
    Use cases
      Product demos
      Tutorial videos
      Feature announcements
    Tech stack
      Electron
      React
      TypeScript
      PixiJS
    Audience
      Developers
      Designers
      Product managers

Things people build with this

USE CASE 1

Record your screen and add smooth zoom effects to highlight important parts of a product demo.

USE CASE 2

Create tutorial walkthroughs with annotations like text labels and arrows without paying a monthly subscription.

USE CASE 3

Build feature announcement videos with custom backgrounds and adjustable playback speed for your marketing team.

USE CASE 4

Compose polished software walkthroughs by layering zoom effects, text, and speed adjustments over raw screen recordings.

Tech stack

TypeScriptElectronReactVitePixiJS

Getting it running

Difficulty · moderate Time to first run · 30min

Electron app requires Node.js and native build tools; initial build and dev server startup takes time.

Use freely for any purpose, including commercial use, as long as you keep the copyright notice.

In plain English

OpenScreen is a free, open-source desktop application for recording your screen and turning those recordings into polished product demos or software walkthroughs. It positions itself as a simpler, zero-cost alternative to Screen Studio, a popular paid tool (around $29/month) that developers and designers use to create visually appealing screen recordings with smooth zoom effects, backgrounds, and animations. The problem it solves is that creating professional-looking screen recordings typically requires either paying for a subscription tool or accepting a result that looks raw and unpolished. OpenScreen provides the core features most people actually need, recording a specific window or the whole screen, adding zoom effects (both automatic and manual with adjustable depth), cropping video, choosing custom backgrounds (wallpapers, solid colors, gradients), adding annotations like text and arrows, trimming clips, adjusting playback speed, and exporting in various resolutions and aspect ratios, all completely free with no watermarks and no subscriptions. The app works as a standalone desktop application. You install it like any other app, grant it screen recording permission, and use a graphical timeline editor to compose your final video with zoom effects, annotations, and speed adjustments layered over the raw recording. You would use OpenScreen if you are a developer, designer, or product manager who regularly creates demo videos, tutorial walkthroughs, or feature announcements and does not want to pay a recurring subscription for a polished result. The tech stack is Electron (which enables the app to run on macOS, Windows, and Linux as a native-like application), React for the user interface, TypeScript for the code, Vite as the build tool, and PixiJS for rendering the visual effects and timeline. It is licensed under MIT.

Copy-paste prompts

Prompt 1
How do I set up OpenScreen on my Mac and start recording my first screen demo with zoom effects?
Prompt 2
Show me how to add text annotations and arrows to a screen recording in OpenScreen's timeline editor.
Prompt 3
What's the best way to export a screen recording from OpenScreen at different resolutions for web and social media?
Prompt 4
How can I use OpenScreen to create an automatic zoom effect that follows my cursor during a product demo?
Prompt 5
Walk me through cropping, trimming, and adjusting playback speed on a screen recording in OpenScreen.
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.