Audio · Converter

Audio trimmer.

Trim and convert audio to MP3, WAV, M4A, or OGG, with the bitrate control shown up front instead of hidden behind a paywall. Runs entirely in your browser via ffmpeg.wasm — nothing is uploaded. Free: one file at a time, full format and bitrate control. Premium: batch-convert several files with the same settings.

Inputs

Audio files Choose audio… MP3, WAV, M4A, OGG, and most audio formats · 1 file at a time (free tier).

Trim start (seconds)

Trim end (seconds, blank = end)

Output format

Bitrate Shown up front — most converters bury this.

Result

Choose audio and press Convert.

How it works

On-device: conversion runs with ffmpeg.wasm right in your browser tab — your audio is never uploaded to a server.
Trim: set a start time and, optionally, an end time in seconds. Leave the end blank to keep everything after the start point.
Bitrate stays visible: most free converters pick a bitrate for you or hide it behind a paid plan. Every option here is on the page from the start.

Free vs Premium

Free converts one file at a time with the full format and bitrate selection. Premium applies the same trim and format settings to up to 10 files in one batch.