The Best Free Online Audio Converter

Using our audio converter tool, you can quickly and easily convert audio and video files to a range of popular audio formats including MP3, WMA, WAV, AAC, M4A, FLAC, OGG, AIFF, Opus, and more. You don't even need to register an account or install any software on your computer or mobile device.

Simply drag and drop (or browse and select) the file you wish to convert, choose your desired output audio format from the dropdown menu, and click the 'Convert' button. Our tool handles the rest, providing you with a download link in seconds. It couldn't be easier!

How to Convert Audio or Video Files Online

Converting files with AudioConverter.co is a simple, three-step process:

Upload File: Drag and drop your audio or video file onto the upload box above, or click the 'Choose File' button to browse your device.
Select Output Format: Choose the target audio format (e.g., MP3, WAV, AAC) you want from the 'Convert to:' dropdown list.
Convert & Download: Click the 'Convert' button. Once the conversion finishes, a 'Download' button will appear. Click it to save your new audio file.

Wide Format Support

Our tool is designed to handle a wide variety of input files:

Video Inputs Accepted: We can extract audio from most common video formats, including MP4, MPEG, AVI, MOV, FLV, WEBM, M4V, WMV, MKV, 3GP, and others.
Audio Inputs Accepted: Convert from numerous audio formats like MP3, AIFF, WAV, WMA, AAC, M4A, FLAC, OGG, Opus, AC3, AMR, etc.
Audio Outputs Supported: Convert *to* all the essential audio formats you need, including MP3, WAV, AAC, M4A, FLAC, OGG, AIFF, WMA, Opus, AC3, AMR, and MP2. Visit our specific converter pages for more details on each format.

Why Use AudioConverter.co? Key Features

100% Free: Our conversion service is completely free to use, with no hidden charges or limitations on the number of conversions.
Safe & Secure (Privacy Guaranteed): We prioritize your privacy. All uploaded and converted files are automatically and permanently deleted from our servers within one hour of processing.
No Registration Required: Convert your files instantly without the hassle of creating an account.
100% Online (No Software Needed): As a browser-based tool, you don't need to download or install anything. This saves space on your device and works anywhere with an internet connection.
All Platforms Supported: Use our converter seamlessly on any operating system (Mac, Windows, Linux) and device (Desktop, iPhone, Android) with a modern web browser.
Unlimited Conversions & Downloads: Convert as many files as you need, whenever you need to. Download your converted files directly.
Easy to Use: Our interface is designed to be intuitive and user-friendly, making the conversion process straightforward for everyone.
Rocket-Fast Conversions: We use efficient backend processing and modern codecs to convert your files as quickly as possible (actual time depends on file size and server traffic).
Convert Video to Audio: A popular feature! Easily extract high-quality audio tracks from your video files (e.g., MP4 to MP3, MOV to WAV).
Direct Original File Conversion: Upload your source files directly without needing intermediate steps or worrying about complex settings.
Experience & Support: We have years of experience providing reliable conversions. If you encounter issues, feel free to reach out (Contact details if available).

Why Might You Need to Convert Audio Files?

There are many reasons why you might need to change an audio file's format:

Compatibility: Different devices (smartphones, car stereos, old MP3 players) or software (video editors, audio tools) support different formats.
File Size: You might need to reduce file size for emailing, uploading to cloud services, or saving space on portable devices (e.g., converting WAV to MP3 or Opus).
Quality Requirements: You might need an uncompressed format (WAV, AIFF) for editing or a high-quality lossless format (FLAC) for archiving.
Specific Applications: Some applications or platforms might recommend or require a specific format (e.g., OGG for some web applications, AAC for Apple platforms).
Extracting Audio from Video: Saving just the soundtrack or voiceover from a video file.

Whatever the reason, our free online audio converter provides a simple and effective solution.

Explore Specific Converters

Need detailed information or want to set a different default format? Visit our specific converter pages: