SuperchargeAudio vs Sound Booster: Real Data (2026)

Key takeaways

• Sound Booster (ID nmigaijibiabddkkmjhlehchpmgbokfj) has ~2M users and 4.5 stars as of June 2026: a solid 600% boost with bass control, nothing fancier.
• SuperchargeAudio matches the 600% ceiling, then adds a 10-band graphic EQ, 8D audio, crossfeed, mono mix, stereo widen, smart mute, and per-site full profiles.
• Both request the same audio-access permissions and both keep data local. The split is feature depth, not safety.

Sound Booster — increase volume up (Chrome Web Store ID nmigaijibiabddkkmjhlehchpmgbokfj) has roughly 2,000,000 users and a 4.5/5 rating from about 13,500 reviews as of June 2026. It boosts any tab up to 600% and adds a bass control. SuperchargeAudio hits the same 600% ceiling, then layers on a 10-band equalizer, 8D spatial audio, and per-site profiles, all at the same zero-cost, no-account baseline.

If you only want a tab louder, both deliver. The reason to read on is the gap above “louder”: tonal control, headphone comfort, and settings that remember themselves per site.

The Head-to-Head Data Table

Both numbers below for Sound Booster were live-checked against its Chrome Web Store listing in June 2026, not copied from older roundups (one of which listed it at a stale 4.8 stars).

The shape of the comparison: Sound Booster wins on install base and track record. SuperchargeAudio wins on everything between “make it louder” and “shape how it sounds.”

How Both Boost Past 100%

Both extensions use the same core mechanism. The Web Audio API exposes a GainNode that sits between the page’s audio source and the output. Set the multiplier to 2.0 and the signal roughly doubles (+6 dB); set it to 6.0 and you reach the ~600% ceiling both advertise.

This works on YouTube, Twitch, Spotify Web, SoundCloud, podcast players, and any standard HTML5 <audio> or <video>. It does not work on Widevine DRM streams: Netflix, Disney+, and Amazon Prime Video are protected below the layer any extension can reach.

One practical difference shows up at aggressive gain. Pushing past roughly 200–300% makes signal peaks exceed 0 dBFS, which clips. SuperchargeAudio places a dynamics compressor after the gain stage to tame those peaks while holding average loudness high, so a quiet podcast pushed to 500% stays cleaner. Sound Booster’s listing does not document a limiter stage.

Where Sound Booster Is the Right Pick

Two million users is a real signal. Sound Booster does the one job most people open a volume booster for, and it does it with a small, fast popup. No EQ to misconfigure, no spatial toggle to wonder about. Drag the slider, nudge the bass, done.

If your need is “this one YouTube video is too quiet” and nothing more, the lighter tool is the better tool. Fewer controls means fewer ways to end up with a setting you forgot you changed. The 4.5-star average across ~13,500 ratings reflects a utility that mostly works as advertised.

The one recurring friction in its reviews: a few users report the boost slipping when a video enters fullscreen, because fullscreen shifts the active-tab context the extension hooks. For casual single-video use, that is a shrug. For someone who watches a lot of fullscreen video, it is a daily papercut.

Where SuperchargeAudio Pulls Ahead

Three situations where the extra features stop being nice-to-have and start mattering.

The audio is quiet and wrong. A flat boost makes a muffled lecture recording louder and still muffled. The 10-band EQ lets you cut 80–250 Hz mud or lift the 2–5 kHz presence range before the gain stage runs. The per-site profile saves that EQ curve next to the gain level, so the fix applies itself the next time you open that domain.

Headphones for hours. Crossfeed bleeds a little of each stereo channel into the other, restoring the natural cross-ear mixing you get from speakers but lose on headphones, so long sessions feel less fatiguing. 8D audio rotates the stereo image on a slow cycle for a moving, around-you effect. Neither exists in a plain volume booster.

Several tabs making noise at once. Smart mute surfaces every audible tab and puts the controls in one place. Music in one tab, a call in another, an autoplay ambush in a third: you handle it without hunting through tabs or muting at the OS level.

And because the boost binds to a per-site profile rather than the transient active tab, it survives fullscreen toggles on the same domain — the exact spot Sound Booster reviewers flag.

Permissions and Privacy: Read This Before You Trust Either

Most comparison posts get this part wrong, so be precise. Both extensions request broad site access. That is not a red flag specific to either one. Chrome’s Web Audio API and tabCapture have to attach to whatever page is currently playing sound, and that page can be any site, so the permission screen reads “read and change your data on the sites you visit” for clean and shady boosters alike. The permission is not the warning sign. The behavior behind it is.

On declared behavior, both look clean. Sound Booster’s listing states it does not collect or use your data. SuperchargeAudio stores everything in chrome.storage.local with no account and no external sync, and its source contains no analytics network calls — a claim you can check, because the processing happens locally in the browser and nothing is shipped out.

One disambiguation that matters for safety searches: a different extension also named “Sound Booster,” with around 200,000 users and a different ID, was named in a 2026 LayerX report as part of a malicious cluster contacting flagged domains. That is not the ~2M-user nmigaijibiabddkkmjhlehchpmgbokfj listing compared here. The shared name is exactly why you check the ID before installing anything in this category.

Which One to Install

If the slider is the whole job, Sound Booster earns its two million installs and you can stop here. If you want to shape the sound — EQ, spatial audio, per-site memory that holds your full setup, and a boost that does not drop when you go fullscreen — SuperchargeAudio covers that ground for free, with no account and nothing leaving your machine.