New v1.0 Release

Reading,
Reimagined.

The modern PDF viewer with ambient immersion, smart search, and a focus-first design.

Readlet Interface

Everything you need.
Nothing you don't.

Ambient Mode

Experience a new level of immersion. Readlet extracts dominant colors from your document to create a dynamic, glowing atmosphere.

Focus Mode

Zero distractions. Just you and your content.

Smart Search

Find exactly what you're looking for, even in scanned documents. Built-in OCR happens locally.

invoice total
P.3 ...the invoice total is $2,450...
P.7 ...previous invoice total amount...

Privacy First

Your documents never leave your device. All processing happens locally in your browser.

Light & Dark

Switch between themes to match your preference.

Light
Dark

Designed for speed.

Built for power users who want to fly through their documents without ever touching the mouse.

Instant Loading

Readlet is built on a high-performance web worker architecture. Documents load instantly, and specialized workers handle OCR in the background without slowing down your reading.

Sidebar Navigation

Jump between sections effortlessly with a generated table of contents. Visual page thumbnails help you find the slide or diagram you remember seeing.

Drag & Drop

Simply drop any PDF into the window to open it. It works just like a native app, but lives in your browser or Chrome extensions bar.

Smart Intelligence

Using Tesseract.js, Readlet silently scans your document's images. So when you search for "invoice total", it finds it—even if the text is inside a scanned image.