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Live on the Chrome Web Store

Read Reddit aloud, right in Chrome.

Install on Chrome, open any thread, and press play. Every commenter gets their own voice, and you choose how it sounds.

Add to Chrome, free See the four engines
Chrome 88+ No sign-up reddit.com & old.reddit.com Free

Four engines, one switch

Read Reddit aloud at the quality you want.

Start with your OS voices for an instant listen, then opt into AI neural engines whenever you want studio-grade narration. Switch from the popup at any time.

  • Default Instant

    System voices

    Zero download. Works on every Chrome.

    Uses the speech voices already installed on your device. Instant playback, no setup, and unlimited voices, anything your operating system already has.

    Download 0 MB
    Voices Unlimited (your system)
    Runtime Web Speech API
  • AI · CPU Near real-time

    AI neural · CPU

    A neural voice model running locally on your CPU.

    A neural voice model running on your CPU via WASM, fully on-device. No GPU required. Five hand-picked English voices, far warmer and more natural than your OS voices. Each voice downloads once and stays cached until you uninstall.

    Download ~63 MB / voice
    Voices 5 voices
    Runtime WASM (CPU)
  • AI · GPU Lite Fast on GPU

    AI neural · GPU Lite

    A lighter neural model on your GPU.

    A lighter neural model running locally on your GPU via WebGPU. Five English accents from a single download, a smaller install than the full GPU tier with quality close behind. Great when you want GPU-quality neural speech without the larger model.

    Download ~177 MB once
    Voices 5 accents
    Runtime WebGPU
  • AI · GPU Fastest on GPU

    AI neural · GPU

    Studio-grade voices on your own GPU.

    The full neural model running locally on your GPU via WebGPU. Eleven distinct voices from a single download. Rich, even-toned, and podcast-ready.

    Download ~325 MB once
    Voices 11 voices
    Runtime WebGPU

AI neural voices download once, then every engine runs fully offline. No audio, no text, and no usage data ever leaves your browser.

Install the Reddit Chrome extension in seconds

  1. Install from the Chrome Web Store.

    One click, no account required.

  2. Open any Reddit thread.

    The extension activates automatically on reddit.com and old.reddit.com.

  3. Pick an engine, press play.

    Start with System voices for an instant listen, or opt into an AI neural engine when you want studio-grade.

Built for long Reddit listening.

Every detail tuned for hours of unattended playback, without sounding robotic or losing your place.

  • Multi-voice rotation

    Up to 11 voices on the GPU engine, unlimited on System voices, so every commenter gets a consistent voice hashed from their username. u/foo always sounds like u/foo.

  • Per-author overrides

    Pin a specific voice to a specific user. Useful for AMAs, recurring posters, or just dialing in your favorite mod.

  • Voice preview

    Audition any voice before you commit. Three short sample sentences with your current rate, pitch, and pause settings.

  • Drag-to-seek scrubber

    Skip around inside a segment without losing place. The scrubber updates as the current segment plays, no audio doubling on jumps.

  • Queue across threads

    Stack multiple threads, reorder them, auto-advance from one to the next. Persists across Chrome restarts so a long listen survives a reboot.

  • Download once, cached

    AI neural voices download once and stay cached until you uninstall the extension. No re-downloads on Chrome restart, and no data sent on later listens.

Sleep mode

Sleep mode: drift off to a thread.

Queue a long AskReddit, pick an ambient track, and set a fade timer. Voices slow, music dims, the screen goes dark. The quietest way to end a scroll.

  • Ten ambient backdrops, or drop in your own track.
  • Independent volume sliders: voice and ambient mix separately, so the narration sits gently on top.
  • Configurable sleep rate: voices ease to 0.85× by default, and you can tune it however you like.
  • Fade-to-silence timer: no jarring stop, just a gradual hand-off to silence.
Sleep mode
On
Ambient track
Reflections of Light ∞ loop
Voice volume 70%
Ambient volume 40%
Speech rate 0.85×
Fade-out 60 s
Fading to silence in 47 s

Private by design

Your listening stays on your machine.

ThreadCast collects nothing about what you read. Every engine synthesizes audio locally, with no servers in the loop.

  • No accounts, no tracking

    No sign-up. No email. No analytics on threads, voices, or usage patterns. Settings sync only through your own Chrome account.

  • Honest about the network

    System voices need zero network. AI neural voices download once, then run fully offline. Nothing you read or hear leaves your device.

  • Minimal permissions

    The extension only requests access to reddit.com. No broad host permissions, no history access, no tab-content scraping outside Reddit.

Coming soon to the extension

The side panel above previews two upgrades on the way: save any thread as an MP3 (already on Android Premium), and read beyond Reddit with a universal web reader, PDFs, and pasted text. Both land in a future Chrome update.

Also on your phone

Listen to Reddit on your phone, too.

The Chrome extension is the free desktop way in. On Android, ThreadCast reads Reddit aloud with on-device AI voices, MP3 export, an offline comment cache, and full TalkBack accessibility. Free to start, Premium for the AI voices.

Listen to Reddit on Android
Get it on Google Play
Available on Chrome App Store coming soon

Ready to listen to Reddit?

Free Chrome extension. No account, no tracking, no catch.

Add to Chrome, it's free