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 alt–s and clicking on the block of text you wish to read. Alternatively, select some text before pressing alt–s.
Change size with +/-.
Go faster/slower with up/down arrow keys.
Go back/forward a sentence with left/right arrow keys (hold alt to navigate by paragraphs).
Pause with space.
Close with escape.
Switch between light/dark themes with 0
Toggle summary stats with / or ? at the end of a run
Interested in a CLI version for a Raspberry Pi project? I was and found speedread to be ideal.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.