Gongwharf: Volume Booster & Equalizer

Volume booster and equalizer for the tabs you listen to. Gongwharf makes quiet lectures, podcasts and films louder, up to 600%, and a limiter keeps loud moments from crackling.

LOUDER, WITHOUT THE CRACKLE

• Fader from 0% to 600% in 5% steps, or type an exact level
• Limiter holds peaks below −1 dB; turn it off for a clean boost without compression
• The red zone above 300% reminds you to go easy on ears and speakers
• The toolbar button shows the current level of the tab

EQUALIZER, BALANCE AND MONO

• 5 bands from 60 Hz to 12 kHz, ±12 dB each
• Presets: Flat, Voice, Bass, Movie, Night and Headphones
• Save your own presets, rename and duplicate them
• Balance between left and right, and Mono for one earbud or hearing on one side

EVERY PLAYING TAB IN ONE LIST

• Playing now shows each tab with sound, with its own level and a mute button
• Mute others silences every tab except the one you are on; press again to bring them back
• Click a tab name to jump to it

EACH SITE KEEPS ITS LEVEL

• Set 250% on a lecture site once, and it comes back the next time that site plays
• Edit or remove saved sites, search them, undo a removal
• Never touch list keeps Gongwharf off chosen sites completely

MADE NOT TO BREAK SITES

• At 100% with a flat equalizer Gongwharf does nothing to the page
• Players that would go silent if boosted (copy-protected media, media from another site without permission) are only made quieter, and the popup tells you so
• Access is opt-in: allow one site at a time or all sites at once

KEYBOARD FRIENDLY

• Shortcuts for louder, quieter, back to 100% and mute
• Every control works with the keyboard; light and dark themes; 16 languages

PRIVATE

• Settings stay in your browser; export and import them as a JSON file
• No account, no ads, no analytics; nothing is sent anywhere and no sound is recorded

Works offline in Firefox and Opera. This version is free.