Loading repository data…
Loading repository data…
Jamil-M03 / repository
Bionic reading for any website or PDF, a Firefox & Chrome extension that bolds the start of each word to guide your eyes. MV2 + MV3, pdf.js reader, 100% local.
A transparent discovery signal based on current public GitHub metadata.
This score does not audit code, security, maintainers, documentation quality, or suitability. Verify the repository and its current documentation before adoption.
Bionic reading for any website or PDF, bolds the first part of each word to guide your eyes and help you read faster. Available for Firefox and Chrome.
Ctrl+Alt+B on Firefox, Alt+Shift+B on Chrome, both customizable).Bionic reading highlights the leading letters of each word so your eyes can move faster while your brain fills in the rest. On web pages, the extension restyles text in place. For PDFs, it uses a bundled copy of pdf.js to render the page and lay bionic text over it, so images and layout are preserved.
Bionic Reader collects, stores, and transmits no data. Everything happens locally in your browser. See PRIVACY.md.
Everything is shared between the Firefox and Chrome builds except the manifest.
The two manifests live in manifests/ (manifest.firefox.json is Manifest V2,
manifest.chrome.json is Manifest V3); build.sh selects the right one.
build.sh is bash.zip command-line utility.pdfjs-dist)../build.sh firefox # -> dist/firefox/ + bionic-reader-firefox.zip (Manifest V2)
./build.sh chrome # -> dist/chrome/ + bionic-reader-chrome.zip (Manifest V3)
Each run downloads pdfjs-dist@4.10.38 from npm, copies the matching manifest
plus the shared source and the pdf.js library into dist/<target>/, and zips it
with manifest.json at the archive root.
content.*, background.js, popup.*, viewer.*, and icons/icon.svg.pdfjs/pdf.mjs and pdfjs/pdf.worker.mjs are the
official, unmodified, non-minified build of pdfjs-dist@4.10.38 from npm
(reproduce with npm pack pdfjs-dist@4.10.38).icons/icon.svg with any SVG rasterizer.about:debugging#/runtime/this-firefox -> Load Temporary Add-on ->
pick dist/firefox/manifest.json.chrome://extensions -> enable Developer mode -> Load unpacked ->
pick the dist/chrome folder.MIT — see LICENSE.
You're free to view, fork, modify, and use this code for any purpose,
including commercial — just keep the copyright notice and license text
from the LICENSE file in any copies or derivatives. If you
build something interesting on top of it, I'd love to hear about it via
my GitHub profile.
PDF rendering is powered by pdf.js, Mozilla's open-source PDF library, bundled unmodified. Inspired by the "bionic reading" idea of emphasizing the start of each word to guide the eye.
© 2026 Jamil M. Licensed under MIT.