1 Overview
ADHD Bionic Reader is a Chrome extension developed by Bartosz Bugajski. It applies the Bionic Reading technique to web pages — bolding the first letters of words to improve reading speed and focus.
This Privacy Policy explains what data the extension accesses, what it stores, and what it does not do. We are committed to full transparency.
Developer contact: bartosz.bugajski97@gmail.com
2 Data We Do Not Collect
ADHD Bionic Reader does not collect, transmit, store on any server, or share:
- Your name, email address, or any identifying information
- Browsing history or visited URLs
- Page content or text you read
- Usage statistics or analytics
- Crash reports or diagnostics
- Any data whatsoever sent to an external server
The extension operates entirely on your device. No data leaves your browser.
3 What the Extension Stores Locally
The extension uses chrome.storage.sync exclusively to remember your
preferences. This data is synced across your own Chrome devices via
your Google account — it is never sent to our servers (we have none).
| Key | What it stores | Personal data? |
|---|---|---|
globalEnabled |
Whether Bionic Reading is turned on (true/false) | No |
intensity |
Bold intensity level (numeric, 1–5) | No |
language |
UI language preference ("pl" or "en") | No |
4 Page Content Access
The extension injects a content script into web pages to apply the Bionic Reading effect. This script reads the text of the page locally in your browser to identify words and bold their first letters.
The page text is processed entirely in memory, is never stored, and is never transmitted anywhere. The script only modifies the visual rendering of text — it does not capture, log, or relay any content.
The extension cannot and does not operate on chrome://, chrome-extension://, edge://, about:, or devtools:// pages.
5 Permissions Used
The extension requests the following Chrome permissions and uses them solely as described:
activeTab
Allows interaction with the currently active browser tab when the user invokes the extension.
scripting
Required by Manifest V3 to inject the content script that applies the Bionic Reading effect.
storage
Used exclusively to persist the three preference keys listed in Section 3 via chrome.storage.sync.
<all_urls>
Required to apply the effect on all websites the user visits. No URLs are recorded or transmitted.
6 Third-Party Services
The extension's UI (popup and options page) loads a stylesheet from
Google Fonts to render the Inter typeface. This is a standard CSS
@import — no JavaScript from Google is executed.
By loading Google Fonts, your browser makes a request to Google's servers. This is subject to Google's Privacy Policy. If you prefer to avoid this, you can use the extension offline — fonts will fall back to your system's sans-serif font.
No other third-party service is used.
7 Remote Code
ADHD Bionic Reader does not load or execute any remote code.
All JavaScript is bundled within the extension package and reviewed during the
Chrome Web Store publishing process. There is no eval(), no
remotely-hosted scripts, and no dynamic code execution.
8 Children's Privacy
Because this extension collects no personal data from any user, it poses no specific risk to children. It is not directed at children under 13, but it does not collect information from anyone regardless of age.
9 Changes to This Policy
If this policy changes materially, the updated version will be published at the same URL and the "Last updated" date above will be revised. Since no personal data is collected, changes are unlikely to affect your privacy in any meaningful way.
10 Contact
If you have any questions about this policy or the extension, please reach out: