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    Made by Gareth Heyes
    Follow me on Twitter: @garethheyes

    Javascript for hackers!

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    Speedy RSVP extension

    By Gareth Heyes (@hackvertor)

    Published 4 months ago • Last updated January 26, 2026 • ⏱️ 2 min read

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    Speedy extension

    I had a spare 30 minutes and I do not trust existing speed-reading extensions. Even when they are free, they could contain security issues or be sold off later. At least I know I will not sell my extension to some evil corporation.

    So I built Speedy! It's A Chrome extension that transforms any webpage into an RSVP (Rapid Serial Visual Presentation) speed reader. Read web content faster by displaying one word at a time with an optimized focal point.

    Features

    • Adjustable Speed: Set your reading pace from 100 to 1000 words per minute
    • RSVP Technology: Words displayed one at a time with an Optimal Recognition Point (ORP) highlighted for faster processing
    • Smart Content Extraction: Automatically extracts article content while filtering out navigation, ads, and other clutter
    • Keyboard Controls: Use Spacebar to pause/resume and Escape to close
    • Progress Tracking: See your current position and total word count as you read
    • Full-screen Reader: Immersive reading experience with a distraction-free overlay

    Installation

    1. Grab the source or from the Chrome web store when available
    2. Open Chrome and navigate to chrome://extensions/
    3. Enable "Developer mode" in the top right corner
    4. Click "Load unpacked" and select the extension folder
    5. The Speedy icon will appear in your browser toolbar

    Usage

    1. Navigate to any webpage you want to read
    2. Click the Speedy extension icon in your toolbar
    3. Adjust the reading speed using the slider (default: 300 WPM)
    4. Click "Read Page" to start the speed reader
    5. Use the controls or keyboard shortcuts to manage your reading session

    Controls

    ControlAction
    SpacebarPause / Resume
    EscapeClose reader
    Pause buttonPause reading
    Close buttonExit reader

    How It Works

    Speedy uses RSVP (Rapid Serial Visual Presentation) to display text one word at a time at your chosen speed. Each word is positioned so that the Optimal Recognition Point (ORP) - highlighted in orange - stays fixed in the center of your vision. This eliminates eye movement and allows for significantly faster reading speeds.

    The ORP position is calculated based on word length:

    • 1 character: 1st letter
    • 2-5 characters: 2nd letter
    • 6-9 characters: 3rd letter
    • 10+ characters: 4th letter

    You can grab the source code from Github: Source

    It's on Chrome webstore now!

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