---
title: "ePub Viewer – Chrome extension stats, history and permissions"
description: "5,000 users, rated 3.64 by 14 people. Version 0.2.0, updated 2021-08-17. Requests 5 permissions."
url: "https://extensiontracker.com/extension/oebdflcjlggijfonbhnoliacddjgkjna"
---

# ePub Viewer

Live in the Chrome Web Store.

- Users: 5,000
- Rating: 3.64 from 14 ratings
- Last checked: 2026-09-27 06:43 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #10,298 of 264,703 live extensions
- Rank in Workflow & Planning: #3,223 of 44,474

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Read ePubs in a reader view style window, convert into PDF or use text to speech

- Extension ID: `oebdflcjlggijfonbhnoliacddjgkjna`
- Developer: [brian.girko](https://extensiontracker.com/developer/ud5508f939bc9b6cceaeb493519261502)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2019-07-01
- Last updated: 2021-08-17
- Version: `0.2.0`
- Size: 211 KiB
- Minimum Chrome: 88
- Languages (1): English
- Support page: `https://add0n.com/epub-reader.html`
- Chrome Web Store: <https://chromewebstore.google.com/detail/epub-viewer/oebdflcjlggijfonbhnoliacddjgkjna>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Foebdflcjlggijfonbhnoliacddjgkjna>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 5,000 | 3.64 | 14 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `chrome://favicon/`: favicon
- `*://*/*.epub*`: Every website
- `*://*/*.opf*`: Every website

### Browser features

- `contextMenus`: Add items to the right-click menu
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Always active Window - Always Visible](https://extensiontracker.com/extension/ehllkhjndgnlokhomdlhgbineffifcbj) | 300,000 | 3.97 | 223 | Tools |
| [OCR - Image Reader](https://extensiontracker.com/extension/bhbhjjkcoghibhibegcmbomkbakkpdbo) | 200,000 | 4.09 | 246 | Developer Tools |
| [Alarm, Timer and Stopwatch](https://extensiontracker.com/extension/jgpddkifkljmnfahlaofmjdeempjbpke) | 80,000 | 4.37 | 109 | Workflow & Planning |
| [Multiple Search and Highlight](https://extensiontracker.com/extension/doagleaopbffngpffnmnajoiablpakfj) | 20,000 | 4.20 | 46 | Workflow & Planning |
| [Save as MHTML](https://extensiontracker.com/extension/ahgakckdonjmnpnegjcamhagackmjpei) | 10,000 | 3.48 | 40 | Developer Tools |
| [Desktop Screen Recorder](https://extensiontracker.com/extension/chjblpopkoelbkolfboniibdhjmlkphf) | 10,000 | 3.82 | 11 | Social Networking |
| [Open in Brave™ Browser](https://extensiontracker.com/extension/mgmnomlncpmfgelhofilonnecmbdaoia) | 10,000 | 3.04 | 23 | Tools |
| [Bookmarks Commander](https://extensiontracker.com/extension/knfpajocfeohpaipkfpdbfhgibajfmcf) | 7,000 | 4.43 | 69 | Workflow & Planning |
| [Webcam Recorder](https://extensiontracker.com/extension/emnihidmoimigeeigckbihmejnejhohc) | 3,000 | 4.00 | 3 | Art & Design |
| [Design Mode - Page's Rich Text Editor](https://extensiontracker.com/extension/omdilgkadhcoliihkpbgpkdcpogkbhah) | 3,000 | 4.73 | 15 | Developer Tools |

All 16 extensions by [brian.girko](https://extensiontracker.com/developer/ud5508f939bc9b6cceaeb493519261502).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-27 06:43 UTC; next check around 2026-10-01.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “ePub Viewer” (oebdflcjlggijfonbhnoliacddjgkjna). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/oebdflcjlggijfonbhnoliacddjgkjna. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_oebdflcjlggijfonbhnoliacddjgkjna,
  title   = {ePub Viewer (oebdflcjlggijfonbhnoliacddjgkjna)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/oebdflcjlggijfonbhnoliacddjgkjna},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/oebdflcjlggijfonbhnoliacddjgkjna>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.