Read web pages and PDFs aloud with open source natural TTS voices (supertonic) - offline, private, and local
Users
152
+13 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#71K
#59K among extensions
Version
0.01.00
updated 10 Dec 2025
Users
monthly, 10 months
Latest, 15 Oct 2026:152 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 15 Oct 2026:3 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About OfflineTTS
OfflineTTS reads web pages, PDFs, and selected text aloud using high-quality AI voices — completely offline and private. No data ever leaves your browser.
Features
- 4 Natural AI Voices — Choose from Male 1, Male 2, Female 1, or Female 2
- Read Full Pages — Extract and read article text with one click
- Read Selected Text — Highlight text, right-click, and select "Read with OfflineTTS"
- PDF Support — Read PDF documents directly in your browser
- Speed Control — Adjust playback from 0.5x to 2.0x
- Pause & Resume — Stop anywhere and continue later
- Keyboard Shortcuts — Alt+P (play/pause), Alt+O (stop), Alt+. (skip forward), Alt+, (skip back)
Privacy First
Everything runs locally on your device using ONNX Runtime. Your browsing data and text content are never sent to any server.
Lightweight
Runs entirely on CPU — no GPU required.
Open Source
OfflineTTS is free and open source under the Apache 2.0 license. View the source code and contribute at github.com/hkdb/offline-tts
Credits
Powered by Supertonic (github.com/supertone-inc/supertonic) for high-quality neural TTS voices.
Early Development
OfflineTTS is in active development (v0.1.0). Currently supports English (tested) and Korean (not-tested). Feedback and contributions welcome!