What is the best free audio file converter?

There are a wide variety of audio file formats available, including MP3, WAV, FLAC, MP4, AIFF, and more. Each format has different technical specifications and use cases. For example, MP3 is a common compressed format optimized for smaller file sizes, while WAV files are uncompressed and provide higher audio quality. FLAC is also lossless but compresses better than WAV.

Sometimes you may need to convert between different audio formats. For instance, you may want to compress large WAV or FLAC files to save space, convert files for compatibility with certain media players, or extract higher quality audio from compressed formats like MP3. This is where free audio converters come in handy.

Using a free audio converter provides several key benefits:

  • Saves money compared to paid converter software
  • Allows batch converting multiple files
  • Supports common audio formats like MP3, WAV, FLAC, etc.
  • Offers customizable output options like bitrate, sampling rate, channels, etc.
  • Easy to use with straightforward interfaces

In this guide, we’ll compare the top free converter tools and make recommendations based on performance, format support, and ease of use. With the right free audio converter, you can effortlessly batch convert files for playback and storage needs.

Top Free Audio Converters

When looking for the best free audio converter, there are several excellent options to consider that provide high-quality conversion without any watermarks:

1. Freemake Audio Converter

Freemake Audio Converter is an easy-to-use and powerful audio converter for Windows that supports over 40 input and output audio file formats. Key features include batch conversion, audio extraction from video, and preset support for optimal conversion settings. It can convert between MP3, WMA, WAV, FLAC, AAC, OGG, and many other formats.

2. MediaHuman Audio Converter

MediaHuman Audio Converter is a simple drag-and-drop audio converter for macOS and Windows. It can convert multiple audio files at once between formats like MP3, AAC, WMA, FLAC, OGG, WAV, and AIFF. Useful features include audio tag editing, quality presets, and output file size settings.

3. Switch Audio Converter

Switch Audio Converter is a versatile audio file converter for Windows, macOS, and Linux. It supports over 40 audio formats and offers batch processing and format preset profiles for easy conversion. Key features include CUE sheet support, chapter/metadata editing, and file merge options.


XRECODE is a lightweight but powerful audio converter available for Windows, macOS, and Linux. It can convert between audio formats like MP3, WAV, WMA, OGG, FLAC, AAC, and more. Useful features include tag editing, quality presets, resampling, and format specific encoding settings.

5. Free Audio Converter

Free Audio Converter is an intuitive audio converter for Windows. It supports converting between MP3, WMA, WAV, OGG, FLAC, AAC, and other audio formats. Key features include audio effects, metadata editing, and preset profiles for quick format conversion.

Key Features to Look For

When evaluating free audio converters, there are a few key features to consider:

Format support – Look for a converter that supports both common audio formats like MP3, WAV, WMA, AAC and more esoteric ones like FLAC, OGG, AIFF, etc. A wide range of import/export formats gives you flexibility. According to The Importance of Audio Converters, some of the top formats to look for include MP3, WAV, FLAC, AIFF, and OGG.

Output quality settings – Higher bitrates and sampling rates generally mean better audio quality. However, larger file sizes too. A good audio converter allows you to customize output quality. As noted in Buyer’s Guide: Audio Converters, key settings like bit depth and sample rate impact audio quality.

Platform availability – Check if the converter works on your operating system, i.e. Windows, Mac, Linux. Online audio converters are OS agnostic as long as you have an internet browser. According to What is An Audio File Converter, web-based converters provide added convenience.

Converter Recommendation

Based on research, the top two recommendations for the best free audio file converters are Freemake Audio Converter and NCH Switch Audio File Converter.

Freemake Audio Converter is an excellent choice because it supports over 40 input and output audio file formats, provides fast conversion speeds, and has an intuitive and easy-to-use interface. It can convert audio files individually or in batches, and allows you to tweak encoder settings for optimal quality. Download it from the official website.

NCH Switch is another great free option that can convert between multiple audio formats and has various advanced features like metadata editing and channel mixing. It has a simple drag-and-drop interface for batch converting files. You can download it from the NCH website.

Both converters are completely free to use with no hidden costs or trial limitations. They work well for basic audio format conversion needs, are easy to use, and do not require advanced audio editing knowledge.

Pros and Cons

The top recommended audio converters like Sit Stand Converter offer a number of advantages. They convert audio files quickly and efficiently while maintaining high audio quality. Some key pros include:

  • Simple and intuitive interface – Easy for beginners to use
  • Supports conversion between all major audio formats – No limitations on file types
  • Allows batch conversion – Convert multiple files at once
  • Retains metadata like ID3 tags
  • Totally free with no paid upgrades or limitations

Potential downsides could include lack of advanced customization options that paid software may offer, like bitrate tweaking. Free converters may also lack proprietary audio codec support that paid options provide. However, for most basic conversion needs, the top free tools recommended here are more than sufficient for most users.

Usage Tips

When converting audio files, here are some tips to help the process go smoothly and avoid errors:

Set the output format to a high-quality lossless format like WAV or FLAC to preserve all of the original audio quality according to this guide. Lossy formats like MP3 compress the audio and lose quality.

Choose the recommended sample rate of 44.1 kHz or 48 kHz for music files. Higher sample rates take up more space without providing audible quality improvements.

Select 16-bit or 24-bit depth to capture the full dynamic range. 16-bit is fine for most applications according to recommendations from this source.

Avoid clipping or distorting the audio levels by leaving around -3 dB of headroom when recording.

Export to the same channel type as the source audio to prevent losing channels.

Check the file extensions match the selected output format to ensure compatibility.

Be patient and expect longer conversion times for large, high-quality audio files.

Correct any encoding errors reported before using the converted files.

Alternative Paid Options

While there are many excellent free audio converters available, some premium paid options offer additional features and benefits that may be worth the cost for power users. Here are a few of the top paid converters to consider:

VideoProc Converter – This full-featured converter allows batch conversion, editing, recording, downloading, and screen recording. It supports over 370 input and output formats and offers advanced audio effects like volume normalization and pitch changing.

XRECODE – Designed for audio engineers and enthusiasts, XRECODE offers high-quality conversions between 150 audio formats. It provides sample rate conversion, channel mixing, and dithering options not found in free converters.

Switch Audio Converter – Switch boasts fast conversion speeds and a wide range of audio tweaks like gain control and trimming. The program can extract audio from video files and handle over 40 formats.

The key advantages of paid converters are their broader format support, batch processing capabilities, editing tools, and advanced settings that provide finer control over audio quality and parameters. They may be worth the investment for frequent, large-scale audio conversion projects.

Online Audio Converters

Online audio converters allow you to convert audio files directly in your web browser without needing to download any software. They can be quick and convenient for one-off conversions. However, there are some downsides to be aware of.


  • No need to download anything – conversions happen fully online.
  • Simple and easy to use – just upload your file and select output format.
  • Accessible from any device with an internet browser.


  • Limited file size – most free online converters have a max file size around 50-100MB.
  • Privacy and security concerns – you’re uploading your files to a third-party site.
  • Limited conversion options – you may not get full control over output quality.

Two of the most reliable free online audio converters are:

Zamzar – Supports over 1200 file formats with no limits on file size for free users.

Online-Convert – Clean interface and supports common formats like MP3, WAV, FLAC with a 50MB size limit.

Mobile Audio Converter Apps

For converting audio on the go, mobile apps provide a convenient option.

Top Apps for Android and iOS

Some top audio converter apps for Android and iOS include:

  • Documents by Readdle – Supports many formats like MP3, FLAC, WAV, and M4A.
  • AV Converter – Handles common formats and includes editing tools.
  • Audio Converter for Android – Fast batch converting, over 40 formats.
  • AudioConvert for iOS – Intuitive interface, metadata support.

Key Features and Limitations

Benefits of mobile audio converter apps include:

  • Portability – Convert files anywhere without a computer.
  • Batch processing – Queue up multiple files to convert.
  • Format support – Handle common formats like MP3, FLAC, M4A.

Downsides to be aware of:

  • Limited features – Less advanced options compared to desktop software.
  • File size limits – Apps restrict max file size due to device storage.
  • Slow speeds – Mobile device processing can be slower.

Overall, mobile audio converter apps provide a handy lightweight solution for simple on-the-go audio conversion needs.


In summary, Format Factory is the recommended pick for the best free audio file converter due to its versatile format support, speed, easy-to-use interface, and additional handy features like extract audio from video. It works great for most common audio conversion needs.

When evaluating free audio converters, look for ones that support the input and output formats you need, perform fast batch conversion, are easy to use, and offer additional utility features. Reading reviews from trusted sources can help narrow down the top options.

Be sure to pay attention to the installation process with free converters, avoiding misleading download buttons or bundled software. Follow best practices when downloading and installing to avoid adware.

While free converters meet most people’s needs, paid alternatives like Xilisoft Audio Converter do offer advantages like faster conversion speeds, technical support, and no ads. Evaluate if these are worth the premium for your usage.

Online audio converters provide a quick alternative for one-off conversions but are less ideal for bulk conversion tasks. Mobile apps can also get the job done in a pinch when you’re on the go.

With the right free audio converter downloaded, you can quickly and easily convert between audio formats for all your music and audio needs.

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