Audio converter tools

Convert OGG (Vorbis or Opus) files to MP3 in your browser. No upload, no signup — files never leave your device.

Convert Opus files to MP3 in your browser — including WhatsApp voice messages. No upload, no signup, files never leave your device.

Convert audio to text online for free. Transcribe MP3, WAV, M4A, and more to text, SRT, or VTT in your browser — no upload, no signup.

Give a start and end time to keep one section of an MP3, WAV, or FLAC file, then download just that piece as a new track.

Pick a target bitrate and re-encode down to it. Taking a spoken-word track from 320 to 96 kbps cuts the file by roughly two thirds.

Line up MP3, WAV, or OGG tracks in whatever order you want and stitch them into a single file with no silence dropped in between.

Set fade in and fade out lengths in seconds so a track eases in and ends without a hard cut. Total duration tells it where the tail sits.

Speed a track up or slow it down, then download the retimed file. Built for lecture recordings, practice loops, and audiobook pacing.

Amplify a quiet recording by a set number of decibels and download the louder file, so an interview taken at arms length becomes audible.

Render any audio track as a 1200 by 200 pixel waveform PNG, the kind of image podcast pages, audiograms, and release posts run above the player.

Strip constant hiss, mains hum, and air conditioner rumble out of a recording, then download the cleaned voice track as an MP3.