Hearably vs Chrome Live Caption
Chrome has built-in Live Caption. Hearably has Whisper-powered AI captions with 90+ languages, a styled overlay, and volume boost. Which is better for your needs?
Real-time enhancement via extension · Or upload a file for free in Studio
Google Chrome includes a built-in Live Caption feature that transcribes audio playing in the browser and displays the text in a floating panel. It was introduced in Chrome 89 (2021) and has been gradually improved since. For many users, it is the first and only live captioning experience they have encountered — and it works reasonably well for basic English transcription. But it has fundamental limitations that become apparent as soon as you need anything beyond basic English captions.
Hearably takes a different approach to live captioning, using OpenAI's Whisper model (and the lighter Moonshine variant) running in the browser via ONNX Runtime WebAssembly. This gives Hearably access to one of the most capable speech recognition models ever built — trained on 680,000 hours of multilingual audio — while still keeping all processing local on your device. The differences between the two approaches are significant in languages, accuracy, visual presentation, and integration with other audio features.
The most important difference is language support. Chrome Live Caption launched as English-only and has gradually added a small number of languages (French, German, Italian, Japanese, Spanish, and a few others as of early 2026). Hearably's Whisper model supports over 90 languages out of the box, with automatic language detection — no manual selection required. For users who consume content in languages Chrome does not support (Korean, Arabic, Hindi, Portuguese, Dutch, Polish, Turkish, and dozens more), Hearably is the only browser-based captioning option.
Visual presentation is the second major differentiator. Chrome Live Caption renders text in a small, fixed-style system panel that sits below the browser window. You cannot change the font size, color, background, position, or styling. You cannot drag it onto the video player. It looks like a system notification, not a professional subtitle. Hearably renders captions as a styled overlay directly on the webpage — on top of fullscreen video, positioned where you want it, with customizable font size, text color, background opacity, and smooth text buffering that eliminates jittery word-by-word display.
The third differentiator is integration. Chrome Live Caption is a standalone feature — it only does captioning. Hearably's captions work alongside the full DSP suite: volume boost up to 800%, 10-band EQ, multiband compression, noise gate, stereo widener, and Ad Volume Guard. For users with hearing difficulties, this combination is transformative: captions provide visual speech information while volume boost and Voice Boost EQ ensure maximum audibility. No other tool offers this integrated audio enhancement + captioning experience in the browser.
Both tools process audio locally and do not send data to servers — an important privacy point. Chrome uses a smaller, built-in speech recognition model optimized for speed. Hearably uses Whisper, which is larger (74MB for the base model) but significantly more accurate, especially for accented speech, technical vocabulary, and multilingual content. The tradeoff is that Whisper requires a one-time model download and uses more CPU during transcription — a reasonable cost for dramatically better accuracy and language coverage.
Whisper AI vs Chrome's Built-In Speech Recognition
Chrome Live Caption uses a proprietary on-device speech recognition model developed by Google, optimized for low latency and low CPU usage. The model is small (estimated 50-80MB) and produces results with minimal delay. However, it is trained primarily on English data and a limited set of additional languages, and its accuracy degrades significantly with accented speech, technical jargon, overlapping speakers, and noisy audio.
Hearably uses OpenAI's Whisper model (base variant, 74MB) running via ONNX Runtime in WebAssembly. Whisper was trained on 680,000 hours of multilingual, multitask supervised audio data — one of the largest speech recognition training sets ever assembled. This training diversity gives Whisper strong robustness to accents, background noise, technical vocabulary, and code-switching between languages. The base model supports 90+ languages with automatic detection.
The accuracy difference is measurable. On the Common Voice benchmark, Whisper base achieves word error rates (WER) of 7-12% for English and 10-20% for most supported languages. Chrome Live Caption's English WER is comparable for clean speech but degrades more rapidly with noise, accents, and domain-specific vocabulary. For non-English languages, Chrome's coverage is limited to a handful of languages with varying accuracy, while Whisper provides consistent quality across its full 90+ language set.
The performance tradeoff: Chrome Live Caption runs with near-zero perceptible CPU impact because the model is small and optimized for Chrome's internal audio pipeline. Hearably's Whisper model uses 10-25% CPU during active speech transcription (running in a dedicated Web Worker to avoid blocking the main thread). On modern hardware (2020+), this is acceptable, but older devices may experience noticeable load. Hearably mitigates this with VAD gating — the Whisper model only runs when speech is detected, dropping to near-zero CPU during silence and non-speech audio.
How to get the best audio on Hearably vs Chrome Live Caption
Choose Hearably if you need non-English captions
Chrome Live Caption supports a limited set of languages. If you consume content in Korean, Arabic, Hindi, Portuguese, Dutch, Turkish, or any of the 80+ other languages Whisper supports, Hearably is the only browser-based captioning option with accurate transcription.
Choose Chrome Live Caption for minimal CPU usage
If you are on an older or low-power device and only need English captions, Chrome Live Caption uses significantly less CPU than Whisper. It is always-on with no model download required.
Choose Hearably for styled, positioned subtitles
Chrome Live Caption renders text in a fixed system panel. Hearably renders captions directly on the webpage as a draggable, styled overlay — customizable font, color, size, position, and background. This matters for fullscreen video viewing where subtitle placement and readability are critical.
Hearably combines captions with audio enhancement
If you need both captions and volume boost/EQ (common for users with hearing difficulties), Hearably provides both in a single extension. Chrome Live Caption is captioning only — no volume control, no EQ, no compression.
Both are private — no cloud processing
Both Chrome Live Caption and Hearably process audio locally. Neither sends audio to external servers. For privacy-sensitive use cases (medical, legal, confidential meetings), both tools are safe choices.
Hearably auto-detects language — no manual selection
Whisper identifies the spoken language from the first few seconds of audio. Chrome Live Caption requires you to download the language model and select it manually. For multilingual content (a speaker switching between languages), Hearably adapts automatically.
Use both if needed — they do not conflict
Chrome Live Caption and Hearably operate at different levels of the audio pipeline. You can technically enable both, though having two caption displays is redundant. Use Chrome Live Caption as a fallback for when Hearably is not enabled on a particular tab.
Built for this exact use case
90+ Languages vs Limited Set
Hearably supports 90+ languages with Whisper auto-detection. Chrome Live Caption supports English and a small number of additional languages. For multilingual content, Hearably is the clear choice.
Styled Overlay vs System Panel
Hearably renders captions directly on the webpage — customizable font, color, size, position, draggable. Chrome Live Caption uses a fixed-style system panel below the browser window.
Audio Enhancement Integration
Hearably combines captions with 800% volume boost, 10-band EQ, compression, noise gate, and stereo widening. Chrome Live Caption provides captioning only — no audio processing.
Whisper Accuracy on Accented Speech
Whisper's massive multilingual training set gives it superior accuracy on accented speech, technical vocabulary, and noisy audio compared to Chrome's smaller built-in model.
Choose your method
Different situations call for different tools. Hearably gives you both.
Chrome Extension
Enhance audio live while you stream. The extension intercepts your tab's audio and processes it in real-time — volume boost, EQ, presets — without downloading anything.
- Streaming on Hearably vs Chrome Live Caption, Netflix, Spotify
- Video calls on Zoom, Meet, Teams
- Any website with audio
- When you want instant, always-on enhancement
Free Online Studio
Upload an audio or video file, apply volume boost + 10-band EQ, preview in real-time, then download the enhanced WAV. Your file never leaves your browser.
- Downloaded videos or music files
- Podcast episodes you want to boost before sharing
- Voice recordings, lectures, interviews
- When you need a permanently enhanced file
Pro tip: Use a YouTube-to-MP3 tool to download the audio, then enhance it in Hearably Studio with EQ + volume boost. Perfect for offline listening, DJ sets, or sharing on social media.
Three clicks to better audio
Install
Add Hearably from the Chrome Web Store. Under 300KB, installs in seconds.
Enhance
Click the Hearably icon and tap "Enhance." Boost kicks in instantly.
Enjoy
Adjust volume, EQ, and presets. Works on any website with audio.
Hearably vs Chrome Live Caption
| Feature | Hearably | Chrome Live Caption |
|---|---|---|
| Price | Free tier available. Pro: €9.99/mo or €79.99/yr | Free (built into Chrome) |
| Languages | 90+ with auto-detection (Whisper) | English + limited additional languages |
| Speech model | OpenAI Whisper base (74MB, 680k hours training) | Google on-device model (smaller, Chrome-optimized) |
| Accuracy (accented speech) | Strong — diverse multilingual training data | Moderate — degrades with accents and noise |
| Caption display | Styled overlay on webpage, customizable, draggable | Fixed system panel below browser window |
| Font/color customization | Full — font size, color, background, position, lines | Minimal — basic size and position only |
| Language auto-detection | Yes — automatic from first few seconds | No — manual language selection required |
| Audio enhancement | Yes — 800% boost, EQ, compression, noise gate | No — captioning only |
| CPU usage | 10-25% during speech (VAD-gated) | Minimal (optimized for Chrome pipeline) |
| Privacy | 100% local — no cloud processing | 100% local — no cloud processing |
| Caption export | Via Hearably Studio (SRT/TXT) | No export |
| Platform | Chrome & Edge desktop | Chrome desktop & Android |
Frequently asked questions
Is Chrome Live Caption free?
Yes. Chrome Live Caption is a built-in Chrome feature, free for all users. Hearably's live captions are included in the extension — free tier includes captions with the base feature set, Pro unlocks additional customization options.
Which is more accurate for English?
For clean, standard American English speech, both are comparable. For accented English, technical vocabulary, noisy audio, or overlapping speakers, Whisper (Hearably) is measurably more accurate due to its larger and more diverse training data.
Does Chrome Live Caption support my language?
Chrome Live Caption supports English, French, German, Italian, Japanese, Spanish, and a growing but still limited set of additional languages. Check chrome://settings/accessibility for the current list. If your language is not listed, Hearably's Whisper model almost certainly supports it.
Can I customize Chrome Live Caption appearance?
Very minimally. Chrome offers basic text size and position options, but you cannot change the font, color, background, or render captions on the actual webpage. Hearably offers full customization: font size, text color, background opacity, position, line count, and drag-to-reposition.
Which uses more CPU?
Chrome Live Caption uses minimal CPU — it is optimized for Chrome's internal audio pipeline. Hearably's Whisper model uses 10-25% CPU during active speech (in a Web Worker thread). With VAD gating, Hearably drops to near-zero CPU during silence. On modern hardware, the difference is acceptable.
Do both work offline?
Chrome Live Caption works offline once the language model is downloaded. Hearably works offline once the Whisper model is cached in the browser (74MB one-time download). Both process audio entirely on-device.
Can I use Hearably captions on Chrome for Android?
No. Hearably is a Chrome extension that requires Chrome desktop (Windows, macOS, Linux, ChromeOS). Chrome Live Caption is available on Chrome desktop and Chrome for Android.
Which is better for hearing-impaired users?
Hearably, because it combines captions with audio enhancement. Volume boost, Voice Boost EQ, and compression make audio more audible, while captions provide visual confirmation. Chrome Live Caption provides captions only. For hearing accessibility, the combination is significantly more effective.