Text-to-speech (TTS), dictation (STT) & PDF reader 100% free with ads or ad-free with Premium. 100% private and local.
Users
32
+10 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#126K
#105K among extensions
Version
4.2.4
updated 9 Oct 2026
Users
monthly, 8 months
Latest, 15 Oct 2026:32 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 months
Latest, 15 Oct 2026:2 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 ZenithNexus - PDF Text to Speech (TTS) & Dictation (STT)
📖 Read PDFs, Dictate & Listen Aloud – ZenithNexus
Read any PDF aloud with word-by-word highlighting. Your privacy is guaranteed — everything processes locally, nothing leaves your browser.
Why ZenithNexus?
One extension. Five powerful tools. Zero compromises on privacy.
🎧 Text-to-Speech (TTS)
- Select any text and hear it read aloud instantly
- Word-by-word highlighting — follow along as it reads
- Adjustable speed: 0.5x to 2.0x — find your perfect pace
- Handles long texts automatically, perfect for articles and documents
📄 Native PDF Reader
- Read any PDF directly in the browser — no external tools needed
- Extract and listen to PDF content with the same TTS engine
- Speed presets, bookmarks, and text panels for a complete reading experience
- Ideal for students reviewing papers, professionals analyzing reports
🎤 Voice Dictation (STT)
- Speak and text appears wherever you're typing
- Works in any text field — emails, forms, social media, chat apps
- Configurable timeout: hands-free or push-to-talk mode
- Real-time visual indicator so you know it's listening
🔊 Narrator Mode
- One shortcut and it reads entire web pages — intelligently
- Automatically skips ads, navigation, sidebars, and clutter
- Turns any article into a podcast-like experience
- Great for multitasking, commuting, or reducing eye strain
🔒 Total Privacy
- 100% browser-side processing — nothing leaves your computer
- Zero data collection — no tracking, no storing, no sharing
- Your voice is never recorded or transmitted externally
- Minimal permissions — only what's strictly necessary
🌍 9 Languages, Fully Translated
- English (US/UK) - Español - Français - Português (Brasil)
- Italiano - Deutsch - 日本語
- Interface, menus, and notifications in your language
- Separate language settings for dictation and reading
- Change one, syncs all three (UI + STT + TTS)
⌘ Shortcuts at a Glance
Ctrl+Shift+L = Read selection / Narrate page
Ctrl+Shift+X = Stop any action
Ctrl+Shift+Q = Toggle microphone
Ctrl+Shift+W = Toggle auto-write
All shortcuts work with the popup closed. Mac: Replace Ctrl with Cmd.
Download ZenithNexus free today and transform the way you read and write on the web.
ZenithNexus — Communication at its peak.
Growth
Window
Users
Change
Ratings
Rating
7 days
−11
−25.6%
0
0.00
30 days
+10
+45.5%
0
0.00
6 months
+29
+966.7%
+1
0.00
Chrome Web Store search rankings
Where ZenithNexus - PDF Text to Speech (TTS) & Dictation (STT) appears when people search the store, with the 30 day change