Who We Are
LiquidBoost is a free Chrome browser extension developed by Vaibhav Dubey ("we", "our", or "us") under the Mathonymics brand. It amplifies the volume of audio and video playing in your browser using the Web Audio API — up to 300% of normal volume — across all tabs.
Data Stored Locally on Your Device
LiquidBoost stores the following data using Chrome's built-in chrome.storage.local API. This data lives only on your device and is never transmitted anywhere:
- Gain level — the volume boost percentage you have set (e.g. 150%).
- Enabled state — whether the boost is currently on or off.
That's the complete list. Two values. Both stored locally, neither ever leaves your device.
No External Network Requests
LiquidBoost makes zero external network requests. It does not contact any server, API, or third-party service for any reason. The only network activity is the Google Fonts request made by the popup UI to load the Outfit and JetBrains Mono typefaces — a standard browser request with no personal data attached.
How the Audio Boost Works
LiquidBoost uses the browser's built-in Web Audio API to intercept audio and video elements on web pages and route them through a GainNode — a standard browser primitive that amplifies the audio signal. This happens entirely within your browser's sandboxed environment.
The extension injects a small script into web pages to patch HTMLMediaElement.prototype.play so that media elements (including cross-origin ones on sites like Spotify, YouTube, and Twitter) are connected to the gain graph. No audio content is ever recorded, captured, or transmitted — the gain is applied in real-time within the browser tab and discarded.
Permissions Explained
LiquidBoost requests the following Chrome permissions, each with a specific justified purpose:
- scripting — required to inject the audio engine script into web pages so it can intercept media elements.
- storage — required to save your gain setting and enabled state locally so they persist across sessions.
- tabs — required to read the title and favicon of the current tab for display in the popup UI, and to broadcast gain changes to all open tabs.
- host_permissions (<all_urls>) — required so the audio engine can run on any website you visit, including streaming services like Spotify, YouTube, and Twitter/X.
No Advertising, No Analytics, No Tracking
We do not use any advertising networks, analytics platforms (such as Google Analytics), crash-reporting services, or user-tracking tools of any kind. We have no way of knowing who is using the extension, how often, or on which sites.
Data Sharing and Third Parties
We do not sell, trade, rent, or share your data with any third party. There are no third parties involved in the operation of this extension whatsoever.
Children's Privacy
LiquidBoost is not directed at children under the age of 13. We do not knowingly collect any information from children.
Your Rights and Choices
- Delete all data — go to
chrome://extensions, find LiquidBoost, click "Details" → "Clear data". This removes the saved gain and enabled state. - Uninstall — removing the extension from Chrome automatically deletes all locally stored data.
- Reset to default — clicking the power button in the popup and setting the slider to 100% effectively resets the extension to its default state.
Changes to This Policy
If we materially change this policy, we will update the "Last updated" date above. Continued use of the extension after changes constitutes acceptance of the updated policy.