Jetzt is an open source speed-reader extension for the Google Chrome Browser. It helps most readers move from a typical reading speed of 250 words per minute to speeds up to 650 WPM. Jetzt makes use of a technique called Rapid Serial Visual Presentation (RSVP) which allows the reader to read a single word at a time in a fixed location avoiding any unnecessary eye tracking.
This extension is capable of helping readers reach their maximum reading rate. People going up to 650 WPM have been documented to experience a 20% reduced comprehension. I’ve enjoyed reading news sites at 650 WPM, but have found that 450 WPM is really easy to keep up with.
There are some fun applications for this type of reader. It creates new opportunities for reading large documents on tiny OLED displays, watch screens and heads up displays.
Control is currently keyboard-only.
Initiate jetzt by pressing
sand clicking on the block of text you wish to read. Alternatively, select some text before pressing
Change size with
Go faster/slower with up/down arrow keys.
Go back/forward a sentence with left/right arrow keys (hold
altto navigate by paragraphs).
- Pause with space.
- Close with escape.
- Switch between light/dark themes with
- Toggle summary stats with
?at the end of a run
Interested in a CLI version for a Raspberry Pi project? I was and found speedread to be ideal.