---
title: Convert WAV to MP3
slug: convert-wav-to-mp3
url: https://apyverse.com/apyhub/service/convert-wav-to-mp3
provider: ApyHub
tags: [audio-conversion, wav-to-mp3, mp3-export, audio-processing, file-conversion]
auth: api_key
---

# Convert WAV to MP3

What it does WAV to MP3 Converter turns a WAV audio file into an MP3 file. Send a binary WAV upload or a public WAV file URL, and get back either the converted audio as a binary download or a signed link to the MP3 output. Use the multipart endpoints when you already have the file in hand, or the U…

## Endpoints

| Method | Path | Description | Atoms |
| --- | --- | --- | --- |
| POST | `/convert/audio/wav-file/mp3-file` | What it does Converts an uploaded WAV file to MP3 and returns the converted audio as a binary downl… | 100 |
| POST | `/convert/audio/wav-file/mp3-url` | What it does Converts an uploaded WAV audio file to MP3 and returns a signed URI to the converted f… | 100 |
| POST | `/convert/audio/wav-url/mp3-file` | What it does Converts a WAV audio file fetched from a public URL into an MP3 and streams the conver… | 100 |
| POST | `/convert/audio/wav-url/mp3-url` | What it does Converts a WAV audio file fetched from a publicly accessible URL into an MP3 file and… | 100 |

## About

## What it does
WAV to MP3 Converter turns a WAV audio file into an MP3 file. Send a binary WAV upload or a public WAV file URL, and get back either the converted audio as a binary download or a signed link to the MP3 output.

Use the multipart endpoints when you already have the file in hand, or the URL endpoints when the source audio is already hosted elsewhere. The upload limit is 100 MB for the file-based routes, and the URL-based routes expect a publicly accessible WAV file.

The response is simple and predictable: one path streams the MP3 file back, and the other returns a `data` field containing a signed URI. That makes it easy to plug this service into upload workflows, media pipelines, or back-office tools that need to normalize audio into a widely supported format.

If you’re building a media library, podcast workflow, or voice app, this is the kind of conversion step you can insert before storage, playback, or distribution.

## Usage

Authenticate with an ApyHub API key in the `apy-token` header.
Full docs and a live playground: https://apyverse.com/apyhub/service/convert-wav-to-mp3