Enhance Video Audio — Improve the Sound of Any Video, Free & In-Browser

Drop your video into Eziclip's Sound Enhancer and pick a preset that matches the clip — Vocal, Podcast or Voiceover for talking, Instrument or Music for a music bed. It cleans the soundtrack and then shapes it so the audio sounds clearer, fuller and more present, lifts a quiet recording with Boost, and muxes the result back onto your untouched video. You A/B it on the footage, then download a clean MP4. It's free and runs right in your browser.

It does both. Removing the steady background noise is the first step, but the enhancer doesn't stop at a quieter, thinner track — it follows the cleanup with a content-matched EQ that adds presence and air to speech or preserves the timbre of instruments, plus an optional level boost. The goal is audio that sounds genuinely better in the cut, not just quieter.

No. Only the audio is replaced — the video stream is copied untouched, so there's no quality loss on the picture. You download a clean MP4 with your original footage and an improved soundtrack.

Yes to both. After processing you get an Original ⇄ Enhanced switch right on your video, so you flip between the source and the improved audio while watching the footage. For a clip with a music bed, the Instrument or Music preset routes the audio to a spectral engine that lowers the noise floor while keeping the instruments intact, instead of the voice-only treatment that mangles music.

The video is decoded, the audio enhanced, and the file remuxed entirely in your browser via WebAssembly, as a web app — so confidential or unreleased footage is handled in the browser. It's free for everyone — no sign-up, no watermark on the export, and no paywall at the download step.