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CastReader — Text to Speech, Read Aloud + AI Explain

Chrome extension by CastReader · Productivity · Tools

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Tools with 3 000 users, a small but real audience.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
3 000
Rating
4.7 (78 ratings)
Users, last 16 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.2.42
Updated in the store
2026-09-13
Published
2026-03-10
Manifest
V3
Browser access
6 permissions, 31 site patterns

How it has moved

Users
unchanged since 31.08
3k · 6 readings
2026-09-02: released 1.2.342026-09-02: released 1.2.352026-09-04: released 1.2.362026-09-07: released 1.2.372026-09-10: released 1.2.382026-09-11: released 1.2.402026-09-14: released 1.2.42
  1. 2026-08-313k
  2. 2026-09-043kreleased 1.2.36
  3. 2026-09-053k
  4. 2026-09-093k
  5. 2026-09-133k
  6. 2026-09-153k
Rating
-0.023 since 31.08
reviewsrating 4.704-4.754 · 6 readings
2026-09-02: released 1.2.342026-09-02: released 1.2.352026-09-04: released 1.2.362026-09-07: released 1.2.372026-09-10: released 1.2.382026-09-11: released 1.2.402026-09-14: released 1.2.42
  1. 2026-08-31reviews69rating4.754
  2. 2026-09-04reviews71rating4.704released 1.2.36
  3. 2026-09-05reviews73rating4.712
  4. 2026-09-09reviews75rating4.720
  5. 2026-09-13reviews76rating4.724
  6. 2026-09-15reviews78rating4.731
Users
unchanged since 31.08
3k · 6 readings
2026-09-02: released 1.2.342026-09-02: released 1.2.352026-09-04: released 1.2.362026-09-07: released 1.2.372026-09-10: released 1.2.382026-09-11: released 1.2.402026-09-14: released 1.2.42
  1. 2026-08-313k
  2. 2026-09-043kreleased 1.2.36
  3. 2026-09-053k
  4. 2026-09-093k
  5. 2026-09-133k
  6. 2026-09-153k
Rating
-0.023 since 31.08
reviewsrating 4.704-4.754 · 6 readings
2026-09-02: released 1.2.342026-09-02: released 1.2.352026-09-04: released 1.2.362026-09-07: released 1.2.372026-09-10: released 1.2.382026-09-11: released 1.2.402026-09-14: released 1.2.42
  1. 2026-08-31reviews69rating4.754
  2. 2026-09-04reviews71rating4.704released 1.2.36
  3. 2026-09-05reviews73rating4.712
  4. 2026-09-09reviews75rating4.720
  5. 2026-09-13reviews76rating4.724
  6. 2026-09-15reviews78rating4.731

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
Show the remaining 3
  • Add items to the right-click menu contextMenus
  • Run work in a hidden page offscreen
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.2.42
  2. Version 1.2.40
  3. Version 1.2.38
Show the remaining 4
  1. Version 1.2.37 · Asked for more permissions (37, was 36)
  2. Version 1.2.36
  3. Version 1.2.35
  4. Version 1.2.34

What changed recently

  1. Package size changed
  2. Released version 1.2.42 (was 1.2.40)
  3. Released version 1.2.40 (was 1.2.38)
Show the remaining 9
  1. Package size changed
  2. Released version 1.2.38 (was 1.2.37)
  3. Package size changed
  4. Asked for more permissions (37, was 36)
  5. Released version 1.2.37 (was 1.2.36)
  6. Released version 1.2.36 (was 1.2.35)
  7. Package size changed
  8. Released version 1.2.35 (was 1.2.34)
  9. Package size changed

Older entries and the full day by day series are in the app.

The publisher

CastReader. Listed website: castreader.com.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Word2Talk Describes nearly the same job, smaller audience 12 users ★ 5.0
  2. ReaderClue Describes nearly the same job, smaller audience 3 users
  3. WebVoice - Web Page Reader Describes nearly the same job, smaller audience 16 users
  4. StorySpeaker Describes nearly the same job, smaller audience 6 users ★ 5.0
  5. ReadThatOut Describes nearly the same job, smaller audience 3 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.