Onyx - Speed Reader
Read faster, Present better
Only for Mac
$4.99
Mac
Read aloud naturally or speed-read up to 800 WPM with a teleprompter that lives in your Mac's notch and works completely offline.
Onyx is a teleprompter that lives in your Mac's notch. Paste your script, hit Start, and a sleek overlay appears at the top of your screen; above every app, even fullscreen. Works completely offline; no internet connection required.
TWO READING MODES
Teleprompter
Read aloud and Onyx follows your voice. Speech recognition highlights each word as you say it and auto-scrolls to keep your place. Works with 63 languages supported by Apple's on-device speech engine; no internet needed.
Speed Reader (RSVP)
Words flash one at a time using Rapid Serial Visual Presentation. Set your pace from 100 to 800 WPM, adjust words-per-flash from 1 to 3, and read faster than ever. Each word is positioned at its Optimal Recognition Point for maximum readability. When you finish, Onyx shows your session stats: actual WPM, reading time, word count, and estimated retention.
WORKS EVERYWHERE
The overlay sits above all windows, including fullscreen apps. Present with Keynote, read from a PDF, or follow a script while recording; Onyx stays on top.
IMPORT YOUR TEXT
Paste directly, drag and drop, or open .txt, .md, and .pdf files. You can also send text from any app using the "Read in Onyx" service in the right-click menu, or open links with onyx://read?text=...
FULLY CUSTOMIZABLE
- Resize the overlay width and height
- Choose from preset accent colors or pick your own
- Adjust overlay opacity and background blur
- Pick your speech recognition language from 63 options
- Configure speed reader font size, default WPM, and chunk size
- Target a specific display in multi-monitor setups
KEYBOARD-DRIVEN
Control everything without touching the mouse. Space to pause, arrows to adjust speed, Esc to dismiss. Designed for presenters and readers who need their hands free.
COMPLETELY OFFLINE & PRIVATE
Everything runs on your device. Speech recognition uses Apple's on-device engine — no server calls, no internet required. No accounts, no cloud, no analytics, no data collection. Your scripts and voice never leave your Mac.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor improvements and polish.
This release also prepares Onyx for expanded localized App Store listings.
The developer, Can Kirsallioba, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Can Kirsallioba
- Size
- 2.6 MB
- Category
- Productivity
- Compatibility
Requires macOS 15.7 or later.
- Mac
Requires macOS 15.7 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Can Kirsallioba
