Audio Converter

How to convert audio files online — 3 steps

What is an online audio converter?

An online audio converter changes an audio file from one format to another without installing anything. Drop in a track, pick the format you need, and download the converted file — everything else about the audio stays as it was.

This one converts between the six formats that matter day to day: MP3, WAV, M4A/AAC, M4R (iPhone ringtone), OGG and FLAC — in and out, in your browser, with nothing uploaded to a server.

The two classic conversions — MP3 to WAV and back

Turning an MP3 into a WAV gives editors a working file; turning a studio WAV into an MP3 gives MP3 to WAV and WAV to MP3 each have their own page, pre-tuned for that exact job.

Lossless options — WAV and FLAC

FLAC and WAV are lossless: converting between them is sample-exact, so a FLAC can become a WAV (and back) without any quality change. MP3, M4A and OGG are lossy formats by design — this converter writes those at high bitrates so the difference stays inaudible.

A map of the formats — what each one is for

Six exports, six personalities. MP3 plays on everything and travels well. WAV is uncompressed — the working format editors and DAWs ask for. M4A is the Apple ecosystem's favourite, and what iPhones record in. FLAC compresses without losing a sample — the archive format. OGG is the open-web choice. And M4R exists for exactly one job: iPhone ringtones. The audio converter speaks all of them in both directions, so the format decision can follow the destination instead of blocking the work.

Lossless stays lossless — with one honest caveat

Between lossless formats the converter is sample-exact: FLAC to WAV and WAV to FLAC change the container, not the audio. That is the backbone of the whole page — an archive can be opened, edited, and re-archived without decay. The caveat is the lossy side of the map: going to MP3, M4A or OGG discards data by design, because those formats exist to shrink files. The converter uses high bitrates to keep that step inaudible, but the direction is one-way — convert a copy, keep the master.

The converter at the centre of a chain

Conversion rarely travels alone. Cut a song with the Audio Cutter, then convert the keep to the format the platform wants. Unwrap an MP3 to WAV for a DAW session. Turn a chorus into an M4R straight from the dropdown — the ringtone step is built in. Add fades with the audio fader before sending the file on. Each neighbour lives one click away in the same browser, under the same nothing-uploaded rule, so a chain that used to need three apps now needs one tab.

Converting on any device — the same page everywhere

Format problems do not wait for a desk. A phone recording needs to be WAV before tonight's session; a FLAC arrives on a laptop that has no FLAC player; an M4A lands on the family tablet. The converter is one page that behaves identically everywhere: open it in any modern browser, pick the file, pick the format, convert locally. No installs, no version of an app to mismatch across devices, and no upload meter crawling over mobile data — the conversion happens on the device you are holding.

The quota is the same everywhere too: guests convert three files a day, free accounts ten — enough that a whole folder of renegades can be processed across a day without paying anything.

Privacy and quota — the operational bits

The operational story in three lines: conversion runs locally in your browser, the file only touches a server if you sign in and deliberately save the result to your library, and the quota is three conversions a day for guests against ten for free accounts. No watermark on any export, no trial countdown, and the six formats in the dropdown are the whole price list — because the price is zero.

Common conversion questions, answered honestly

"Will converting FLAC to WAV lose anything?" — no: lossless to lossless is sample-exact. "What about MP3 to WAV — does quality come back?" — no, and any page claiming otherwise is selling air; conversion forwards, it never restores. "Why does my file get bigger?" — because formats like WAV store uncompressed samples; size is the price of editability. The honest answers are the same ones the FAQ carries, because the facts do not change between sections.

A final word on expectations

The converter's promise is deliberately narrow: the same audio, in the container you need, processed locally, at no cost. It does not enhance, clean up or master — a hissy source stays hissy in whichever format it travels. That narrowness is the feature: no surprises in, no surprises out, and every conversion lands exactly as the format spec says it should.

Free audio converter — 3 conversions a day without an account

• Guests: 3 conversions a day — no sign-up, no card
• Free accounts: 10 conversions a day — results stay on your device until you save them to your library
• Browser-based — your files never reach a server

The audio converter is one of RapKit's 13 zero-cost audio tools — see them all.

More free audio tools

Pull the audio out of a video with MP4 to MP3, shrink big files with the Audio Compressor, or clean up vocals with the Vocal Remover.