Browser EQ
Parametric Browser Equalizer

Shape the sound of any tab.

Browser EQ is a visual parametric equalizer for browser tabs. Adjust frequencies directly on the graph, use built-in presets, and control output gain from a clean extension interface designed for fast, everyday sound shaping.

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Browser EQ interface screenshot

What Browser EQ does

Browser EQ gives you direct, visual control over browser audio without forcing you into a large or confusing interface. It is built around a practical browser workflow: open a tab, shape the sound, and keep moving.

Parametric EQ graph

Add points directly on the graph and move them visually to change frequency and gain in a natural way.

Built-in presets

Start with ready-to-use tonal profiles such as Flat, Bass Boost, Vocal, or Bright for faster everyday tuning.

Output gain control

Compensate for tonal changes with a dedicated output gain control so the final level stays comfortable and balanced.

How Browser EQ works

Browser EQ is designed to keep the equalizer workflow simple and understandable, even for users who are not used to studio plugins.

1

Open the extension on a supported tab

Browser EQ works with supported browser tabs that allow audio capture. If a page cannot be captured, the popup clearly shows that state instead of failing silently.

2

Adjust the curve visually

Click on the graph to create a point, then drag it to shape the curve. This makes tonal changes easier to understand than working with abstract numeric controls alone.

3

Use presets as a fast starting point

Built-in presets let you move quickly from a neutral curve to a more focused sound profile without building every adjustment from scratch.

4

Balance the final level

Output gain helps you compensate for boosts and cuts so the result feels controlled and usable, not just louder or thinner.

Why a parametric equalizer?

A parametric equalizer is more flexible than a simple bass/treble control. Instead of changing broad frequency ranges with fixed knobs, it allows you to target specific areas of the spectrum and shape sound more precisely.

  • Lift low end without making everything muddy
  • Reduce harsh or boxy frequency areas more selectively
  • Improve clarity for speech, podcasts, videos, or music
  • Create a more personal listening profile for browser audio

Privacy and permissions

Browser EQ needs access to specific browser permissions in order to process audio from supported tabs and save your settings.

  • tabs — to identify and manage the current tab
  • tabCapture — to capture supported tab audio
  • offscreen — to process audio in the background
  • storage — to save settings and presets

Browser EQ is designed as a local browser-side tool. Replace this paragraph if your final release adds any remote services or external data handling.

FAQ

Quick answers to the most common questions about setup, supported pages, and expected behavior.

Why does Browser EQ say that a tab cannot be captured?
Some pages or browser-internal URLs do not allow normal tab audio capture. This is expected behavior. Try the extension on a regular website tab that is actively playing sound.
Do my EQ settings affect all browser tabs?
In the current release, Browser EQ is built around a shared profile workflow. This means the active EQ profile can be reused across supported tabs instead of being rebuilt from scratch each time.
Will Browser EQ work on every website?
Not every browser page supports audio capture in the same way. Browser EQ is intended for supported website tabs, not for every browser-internal or restricted page.
Does Browser EQ send my audio anywhere?
Browser EQ is intended to work locally in the browser. If your release build later changes how data is handled, update this page and your store privacy details accordingly.
Can I save my own custom presets?
Built-in presets are included in the current release. Support for more advanced preset workflows may be expanded in later updates.

Bug Report

If you run into a problem, please include enough detail so the issue can be reproduced and fixed faster.

What to include in a report

  • Browser name and version
  • Operating system
  • Website or page where the issue happened
  • What you expected to happen
  • What actually happened
  • Whether the issue is constant or random
  • Screenshots or short screen recordings, if possible

How to report a bug

You can send bug reports by email or through an issue tracker.

  • Email: zeronsfwhelp@gmail.com
  • Issue tracker: ...

Support (Crypto)

If Browser EQ was useful to you and you want to support future updates, you can do it here.

BTC
bc1qjkylyv0sqjcpj4m0khkjj7yus8ujs3w3xavzhf
ETH / ERC-20
0xb8Ac41cA81C95eb32EC706fCaED86305820ffe47
TON
UQANY-hZ1zw2E9tTOZwo4khPX4QM6bhNREij229c9oOHxcaC
USDT (TRC20)
JYBkbZt9AprNUVXHEDRnE4ZQad3V2EtGk

Crypto support is completely optional and does not affect the availability or functionality of the extension.