// the story behind Calvio
Hi, I'm Keshar Suthar — a developer passionate about building tools that solve real problems for content creators. Calvio was born out of frustration with silence-filled recordings that waste hours of editing time.
Every podcaster, YouTuber, and voiceover artist knows the pain: you hit record, talk for 20 minutes, and then spend another 45 minutes scrubbing through dead air and awkward pauses. Professional editing software can cost hundreds of dollars and requires a steep learning curve.
Calvio does one thing — and does it instantly, directly in your browser. No installs. No subscription. No uploading your private audio to a stranger's server. Your files never leave your device.
Calvio uses the Web Audio API to decode your audio or video file directly in the browser. It scans the waveform using RMS (Root Mean Square) analysis to identify silent regions, then surgically removes them while preserving natural padding around cuts so the result doesn't sound choppy.
You can export your cleaned audio as WAV (lossless) or MP3 (compressed, smaller file size) — all processed locally on your machine.
Calvio supports MP3, WAV, OGG, M4A, MP4, and WEBM files. For video files, the tool extracts and processes the audio track and exports it as an audio file.
Your audio and video files are processed entirely on your device using browser APIs. No file is ever uploaded to any server. Calvio has no backend — it's a single HTML page running purely in your browser.
Have a feature request, bug report, or just want to say hello? Head over to the Contact page and drop a message.