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    © 2026 builtbyindies, Inc.

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    DemoVexa

    Turn application code into animated product demo videos.

    DemoVexa

    DemoVexa

    Turn application code into animated product demo videos.

    B
    Baltej Singh

    Screenshots

    Screenshot 1
    Screenshot 2
    Screenshot 3
    Freemium
    AI Video
    DevTool
    Screen Recording
    Built with
    ReactReact
    RemotionRemotion
    Node.jsNode.js

    What is DemoVexa?

    DemoVexa is a local desktop application that creates narrated, animated product demonstration videos directly from software source code. Instead of capturing actual displays through screen recording tools, the software examines project repositories, documentation, and interface components to generate product walkthroughs. It handles script creation, voiceover synthesis, and interface animations while keeping source code stored locally on your device.

    Software teams frequently struggle with maintaining up-to-date video demonstrations. Traditional screen recordings quickly become outdated whenever an interface updates, exposing sensitive test data or requiring manual editing, script adjustments, and fresh voice talent. DemoVexa resolves this maintenance bottleneck by recreating application interfaces using clean sample data and code-level representations that update whenever new code deploys.

    What sets DemoVexa apart is its code-aware architecture powered by AI integrations like Claude, Codex, or GitHub Copilot alongside Remotion. It translates components and user flows into customizable React scenes. By working directly with your underlying code and personal API accounts, it renders crisp visuals across multiple aspect ratios without marking up third-party platform costs.

    Who is it for?

    DemoVexa is built for individuals and teams looking to produce technical product videos without manual screen recording:

    • SaaS founders seeking to launch professional feature announcements and onboarding walkthroughs quickly.
    • Product marketing managers needing localized assets across multiple social media formats.
    • Developer relations specialists producing technical tutorials, changelog reviews, and documentation guides.
    • Digital agencies delivering client software showcases and product demonstrations at scale.
    • Indie hackers maintaining regular product update videos alongside agile release cycles.

    Key features

    • Codebase Inspection: Reads code repositories, local files, and documentation across any language or framework to map out user workflows and interface screens automatically.
    • Programmatic Interface Recreation: Rebuilds screens in React using clean demo data, ensuring sharp rendering at any scale without recording real customer information.
    • Remotion-Powered Motion: Animates interface actions, cursor clicks, and scene transitions timed precisely to narration pacing and audio cues.
    • Multilingual Scripting and Voiceover: Generates translated scripts in 85 languages with voice synthesis integration through ElevenLabs, Sarvam, and Deepgram.
    • Multi-Format Social Exports: Renders finished 1080p MP4 videos in 16:9, 9:16, and 1:1 aspect ratios alongside ready-to-post social text and cover images.
    • Workspace Brand Kits: Saves brand standards including typography, color palettes, logos, and call-to-action buttons across every video project.
    • Conversational Revisions: Adjusts timing, scene order, interface colors, and copywriting through natural language prompts without manual timeline editing.
    • Batch Queue Rendering: Queues multiple project variations and localized videos to process and render overnight on local desktop hardware.

    Use cases

    Software launches benefit from DemoVexa by generating full launch videos across YouTube, X, and LinkedIn from a single project folder, complete with aspect ratios adapted for both mobile feeds and desktop players.

    Customer success teams can convert knowledge base tutorials and changelog notices into narrated walkthroughs, teaching complex user workflows step-by-step using dummy data instead of private client records.

    Global product releases use DemoVexa to translate interface scripts and sync native voiceovers into dozens of languages, keeping UI terms accurate while timing scene transitions to fit each localized narration track.

    Pricing

    DemoVexa offers a 14-day free trial supporting 3 videos, 15 renders, and 30-second video lengths with no credit card required. Paid plans start with the Solo tier at $29 monthly ($290 annually) for 20 videos, 100 renders, and 3 workspaces. The Team plan costs $79 monthly ($790 annually) for 60 videos, 300 renders, 10 workspaces, and 3 seats. The Agency plan is $199 monthly ($1,990 annually) for unlimited videos, renders, and workspaces across 10 seats. AI model usage and voice services require your own separate API keys or account logins with providers like Anthropic, OpenAI, ElevenLabs, Sarvam, or Deepgram.

    FAQ

    Where does DemoVexa run?

    DemoVexa runs locally on your computer as a desktop app for macOS, Windows, and Linux, and can also be installed via npm.

    Does DemoVexa upload application code to external servers?

    No, your code folder is processed locally on your computer and is not uploaded to DemoVexa servers.

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