Privacy Policy

Last updated: May 5, 2026

Sunny Reader ("the extension") is a Chrome browser extension that presents web articles and Wikipedia pages in a calmer reading view, with notes, highlights, a dictionary, edit tools, and a local reading history. This policy explains what the extension stores and when it uses the network.

What stays on your device

The extension uses Chrome's local extension storage and the extension's IndexedDB databases to save the following on your computer:

• Your preferences, such as theme, font, text size, line spacing, column width, toolbar state, loading animation, favicon display, image-resize setting, and the highlight-cache setting.
• Per-page reading choices, such as a saved theme for a page and custom image widths.
• Highlights, sticky notes, and cloud notes you add in Reader View or Wikipedia mode.
• Your reading history: local snapshots of articles and Wikipedia pages you open, including the page URL and normalized URL, title, domain/site, path, favicon URL if available, byline, published date if available, excerpt, article content, text-only article content, language/direction, saved/updated/archive dates, annotation counts, and attached sticky notes, cloud notes, and highlights.
• A temporary copy of the article while Reader View is opening. This is cleared when the tab closes, when the reader closes, and on extension startup or update.

This saved data is not uploaded to Sunny Reader. Options export downloads the extension's Chrome local storage as a file, which may include preferences and some local per-page data such as annotation, highlight, cloud-note, and image-width caches. Options import restores supported settings only. History export/import handles local reading-history snapshots.

Import/export uses files you choose. Edit Mode can read an image file you choose and insert it into the reader as a local data URL. Dictionary copy buttons write the lookup word to your clipboard. One reader recovery prompt may copy the current page URL before restarting Sunny Reader. Paste handlers read text from the paste event. These file and clipboard actions are not uploaded by Sunny Reader.

Network requests

Sunny Reader does not run analytics, tracking, advertising, telemetry, or error-reporting network calls. It does use the network for these feature-specific cases:

• Reader View and saved snapshots. When you open a page in Reader View, the extension reads the already-loaded page in your active tab and creates a local snapshot. Reader View and saved snapshots may load remote assets referenced by the article, including article images, favicons, thumbnails, and permitted media embeds, from the original site or third-party media/image hosts. The extension does not send the article text to Sunny Reader or to an AI service.
• Dictionary lookups. When you use the built-in dictionary, the word or search text you enter is sent to api.dictionaryapi.dev for definitions and pronunciations and to api.datamuse.com for synonyms, related words, and spelling suggestions. Pressing a pronunciation button may also load an audio file from the URL returned by the dictionary service; otherwise the browser's speech synthesis is used. Sunny Reader does not add your account information, a user identifier, or the article URL to those requests. Like any web request, the dictionary services and audio hosts may receive normal technical information such as your IP address from your browser.
• Wikipedia mode. Wikipedia mode runs on the Wikipedia page you already opened. The extension applies bundled styles and tools to that page and saves your notes, cloud notes, and highlights locally. It does not send those annotations to Wikipedia.
• Links you choose to open. Buttons such as "Visit Site," article links, and YouTube thumbnail links open the selected page in your browser. Those sites receive the normal browser request for the page you chose to open.

The extension does not open the Sunny Reader website automatically on install or update.

Permissions, explained

• activeTab, scripting Inject the reader or Wikipedia tools into the current tab after you click the Sunny Reader icon or use its keyboard shortcut.
• storage Save preferences, per-page choices, notes, cloud notes, highlights, image widths, and reading history on your device.
• notifications Show short status messages, such as when Reader View cannot be opened on a restricted page.
• declarativeNetRequestWithHostAccess Adjust technical headers for image requests in the tab where Reader View was opened so images can display inside the extension's reader frame. The tab-scoped session rule may set the Referer header to the article URL, remove the Origin header, and set an access-control response header. The rule is removed when the tab closes. Sunny Reader does not use this permission for cross-site tracking or ad blocking.

Data retention

Library/history snapshots stay on your device until you delete them from History, replace matching snapshots by importing history, or uninstall the extension. Archiving keeps the snapshot and adds an archive date. Deleting a History entry removes the saved library snapshot. Some per-page local data, such as page themes, sticky notes, cloud notes, highlight caches, and image widths, may remain until you remove or overwrite those items, or until you uninstall the extension. Chrome removes Sunny Reader's extension-scoped local storage and IndexedDB data when the extension is removed.

Data sharing

Sunny Reader does not sell your data. It does not have accounts, authentication, analytics, telemetry, cloud sync, or a backend service that receives your reading history, notes, highlights, cloud notes, or article text. Third-party requests made by extension features are described in the Network requests section above.

Children

Sunny Reader is a general-purpose reading and study tool. It has no advertising or behavioral targeting, and it does not knowingly collect data from children under 13.

Changes to this policy

Material changes to this policy will be noted on sunnyreader.com. The "Last updated" date at the top of this policy will reflect the most recent revision.

Contact

Privacy questions or concerns: privacy@sunnyreader.com.