Rapid Serial Visual Presentation Engine
Tool guide
Paste an article, a set of notes or a chapter and the reader splits it into words, flashing them one at a time at a single fixed point on screen. Your eyes stop hopping along the line hunting for the next word, and those return jumps are where a normal reader loses a sizeable share of the time. That is where the speed comes from. It suits skimming a stack of articles before a meeting, drilling notes before an exam, or simply training focus. The text is processed in the tab and is never uploaded. See also: pull running text out of a subtitle file, clean timestamps out of a video transcript, strip tags from a copied web page.
Take the 250 WPM preset — roughly the pace of unhurried reading aloud and the comfort floor for most people. Read a couple of paragraphs, restate them to yourself, and add 50 if the retelling is complete. After a week of practice, 400 to 500 on easy prose is a realistic target. The 1200 and 1800 ceilings exist for short bursts, not sustained reading.
The Optimal Recognition Point is the position inside a word where the eye identifies the whole word fastest — roughly 30–35% of the way in from the start: the second letter of a five-letter word, the third of a nine-letter one. ORP mode aligns every word on that point and marks it so your gaze does not hunt for a new anchor on each change. If the highlight distracts you, switch to Center or place the anchor yourself with the offset slider, which runs from 0 to 100%.
The uploader accepts .txt only. PDF, DOCX, EPUB and FB2 are not parsed, because the page carries no reader for those containers. The practical route is to open the document in its own application, select the chapter you want and paste it straight into the text box.
Because it removes not only saccades but regressions — the small jumps back to a previous phrase that your brain uses to confirm it understood. On news and familiar topics that costs little; on dense material full of figures, formulas or legal wording it costs a lot. Read those normally and use the reader as a filter: sweep through quickly, then decide what deserves a careful pass.
Yes — the reader is fully keyboard-driven: Space starts and pauses, ← and → step one word back or forward, ↑ and ↓ change the pace by 25 WPM inside the 50 to 1800 range, and Backspace resets to the beginning. Pausing rewinds three words automatically so you never lose the thread of the sentence. The shortcuts stay inactive while the caret sits in the text box, the speed field or the offset slider.
Reading works well: the word is shown large at a single point, so a small screen barely matters when there is only one line. What is awkward is pasting long text and hitting the small speed buttons while the run is going. Set the pace and focus mode before you start and use only pause during playback. Note the interface labels are in Russian.
No. Splitting the text and timing the words is done by script inside the page, and nothing is sent to a server. Reload the tab and you will need to paste again, so keep long material in a .txt file and load it through the uploader instead.
Before: A 9,000-character article, roughly 1,400 words
After: At 600 WPM a full pass takes about 2 minutes 20 seconds
Before: Start on the 250 WPM preset, comprehension intact
After: Add 50 WPM at a time up to 400-450, past which meaning starts slipping
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