HearSub is a consumer product built for youTube viewers learning from or watching foreign-language videos.

Does HearSub have a free plan?

Yes — there is a free tier, with paid plans for advanced use.

What platforms does HearSub run on?

HearSub runs on the web and embeddable surfaces.

Is HearSub still active?

Unverified. HearSub has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to HearSub?

Similar projects tracked by PulseGate include Add Subtitle.ai, Subtitle Speaker, and DoubleSubs.

Who develops HearSub?

HearSub is developed by HearSub.

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HearSub

Name: HearSub
Author: HearSub

hearsub.aiVoice & speech translation

HearSub is a browser extension that translates YouTube subtitles in real time and displays bilingual captions. It synchronizes AI-generated dubbing with playback, supports multiple target languages, and processes nearby lines without requiring full-video uploads.

FreemiumWebEmbeddableCloud-managed

Visit hearsub.ai

Overview

8 features

HearSub is a Voice & speech translation project. It focuses on understanding foreign-language YouTube videos without waiting for full-video processing or uploading the video. It is built as a consumer product for youTube viewers learning from or watching foreign-language videos. HearSub follows a freemium model. It ships for the web and embeddable surfaces.

HearSub builds and maintains HearSub, and it first shipped in 2026. Among its 8 catalogued features are live subtitle translation, bilingual captions, and AI dubbing.

Live subtitle translation
Bilingual captions
AI dubbing
Playback synchronization
Target language selection
Automatic subtitle display
YouTube support
Privacy-focused processing

Built with & integrations

Connectors

chrome

Runs on

BrowserEmbeddableCloud-managed

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed3 Sept · 00:52 UTC
HearSub for Firefox verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about HearSub

What is HearSub?: HearSub focuses on understanding foreign-language YouTube videos without waiting for full-video processing or uploading the video. It is catalogued under Voice & speech translation on PulseGate.
Who is HearSub for?: HearSub is a consumer product built for youTube viewers learning from or watching foreign-language videos.
Does HearSub have a free plan?: Yes — there is a free tier, with paid plans for advanced use.
What platforms does HearSub run on?: HearSub runs on the web and embeddable surfaces.
Is HearSub still active?: Unverified. HearSub has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to HearSub?: Similar projects tracked by PulseGate include Add Subtitle.ai, Subtitle Speaker, and DoubleSubs.Add Subtitle.ai Subtitle Speaker DoubleSubs
Who develops HearSub?: HearSub is developed by HearSub.
When did HearSub launch?: HearSub first shipped in 2026.

At a glance

Platforms: Web
Languages: English
First seen: 3 Sept 2026
Built for: YouTube viewers learning from or watching foreign-language videos
Model: B2C
Solves: Understanding foreign-language YouTube videos without waiting for full-video processing or uploading the video.

Registered as

Chrome Web Store: jakmaalogdcamibalgapooggepolifip
Firefox Add-ons: hearsub-for-firefox

Index record

Indexed: 3 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 3 Sept 2026

Identity audit (13)

Slug: hearsub-for-firefox-hearsub-ai
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 3 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Taken from the project's own store listing.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 3 Sept 2026
Canonical URL: https://hearsub.ai/

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