9 Best Free MP3 to AAC Converter Online Websites

Here is a list of best free MP3 to AAC converter online website. MP3 is a popular audio format that carries audio data and associated information like metadata. On the other hand, AAC is a new and more efficient audio file format that carries high-quality audio without increasing the file size. If you want to convert MP3 audio files to AAC format without using bulky apps and software, then check out these MP3 to AAC converter online websites. Using these websites, users can quickly convert one or more MP3 audio files to AAC, M4A, FLAC, WMA, etc., audio formats. Most of these websites also come with audio property adjustment tools. Using audio adjustment tools, users can manually adjust output audio parameters like audio bitrate, audio sample rate, channel, volume, etc.

The process to convert MP3 to AAC is quite simple on all these websites. Still, to help you out, I have included the necessary conversion steps in the description of each website. A good set of additional file conversion tools are also provided by these websites that may come in handy. Using additional tools, users can convert media files, convert documents, optimize documents, compress files, and more. Go through the list to know more about these websites.

My Favorite MP3 to AAC Converter Online Website:

cloudconvert is my favorite website as it allows users to batch convert MP3 files to AAC at a time. Plus, it allows users to adjust the output audio parameters according to their requirements.

You can also check out lists of best free FLAC to MP3 Converter, AIFF to MP3 Converter, and MP4 to MP3 Converter websites.

cloudconvert

cloudconvert is a free MP3 to AAC converter online website. Using this website users can batch convert multiple MP3 audio files to AAC at a time. Besides AAC, it can also convert MP3 audio files to AIFF, FLAC, WAV, M4A, etc., audio formats. Before starting the conversion process, users can also adjust the output audio parameters like audio codec, audio bitrate, volume, etc. After making all the necessary changes, start the conversion process by following the below steps.

How to convert MP3 to AAC online using cloudconvert:

• Go to this website using the given link.
• After that, click on the Select File button to load one or more MP3 audio files.
• Next, choose AAC as the output from the Format menu.
• Now, go to Settings to manually adjust audio parameters,
• In the end, click on the Convert button to start the conversion process.

Additional Features:

• Archives: Using this section, users can create and extract archive files of various formats.
• Convert Files: It carries multiple online file conversion tools like Archive Converters, Ebook Converter, Image Converter, Video Converter, Presentation Converter, and more.

Final Thoughts:

It is one of the best free MP3 to AAC converter online website through which users can convert multiple MP3 files to AAC at a time.

Convertio

Convertio is another free MP3 to AAC converter online website. It is mainly an online file converter website that can also convert multiple MP3 audio files to AAC audio format. Apart from AAC, it can also convert MP3 audio files to FLAC, AIFF, MP2, AU, etc., audio formats. Plus, it also supports large audio files of up to 100 MB size. A handy Settings panel to adjust the output audio parameters (codec, bitrate, frequency, etc.) is also available in it. Another good feature of this website is its ability to fetch audio files from Google Drive and Dropbox cloud storage services. Now, follow the below steps.

How to convert MP3 to AAC online using Convertio:

• Launch this website and click on the Choose Files button to load one or more MP3 audio files.
• After that, choose AAC from the output format menu.
• Next, go to Settings to specify the output audio parameters like codec, audio frequency, etc.
• Lastly, click on the Convert button to start the conversion process.

Additional Features:

• Convert Menu: This menu comes with multiple online file converters such as Audio Converter, Video Converter, Presentation Converter, Font Converter, and more.
• OCR: It is an advanced tool that allows users to scan and extract text information from images and documents of various formats.

Final Thoughts:

It is another capable MP3 to AAC converter online website that offers all the essential tools to convert MP3 audio files to AAC, AIFF, FLAC, etc., audio formats.

Zamzar

Zamzar is a free online file converter website that can also be used as MP3 to AAC converter online. This website offers a dedicated Convert MP3 to AAC online tool that can batch convert MP3 files to AAC at a time. Besides this, many other audio converters to convert MP3 files to FLAC, AC3, M4A, etc., audio formats are also available in it. A handy email when done feature is also offered by it that can send the converted audio files to users’ registered email accounts. Now, follow the below steps to convert MP3 to AAC online using Zamzar.

How to convert MP3 to AAC online using Zamzar:

• Start this website and go to MP3 to AAC converter section.
• After that, click on the Add Files button to load one or more MP3 audio files.
• Next, choose the email when done option, if you want to get output AAC files on your Gmail account.
• Lastly, click on the Convert Now button to start the conversion process.

Additional Features:

• Converters: This website comes with many online converters through which users can convert formats of documents, images, videos, eBooks, etc., files.

Final Thoughts:

It is another good and easy-to-use MP3 to AAC converter online website that allows users to quickly convert one or more MP3 audio files to AAC and other supported audio formats.

online-convert.com

online-convert.com is another free MP3 to AAC converter online website. This website can convert both locally stored and cloud-stored (Google Drive and Dropbox) MP3 files to AAC, FLAC, M4A, OGG, etc., audio formats. It even allows users to manually adjust output audio quality, audio frequency, and audio channels. Now, check out the below steps.

How to convert MP3 to AAC online using online-convert.com:

• Start this website and go to the Convert to AAC section.
• After that, load locally stored or cloud-stored MP3 audio files.
• Next, go to Options Settings to adjust the output audio parameters as mentioned in the introduction.
• In the end, click on the Start button to start the conversion process.

Additional Features:

• File Compression Tools: This website offers a good set of file compression tools through which users can compress PDF, JPG, and PNG files.
• File Conversion Tools: Using these tools, users can convert file formats of Archive, Audio, CAD, Ebooks, etc., files.

Final thoughts:

It is another simple MP3 to AAC converter online website that anyone can use to online convert MP3 audio files to AAC format.

FreeConvert.com

FreeConvert.com is another free MP3 to AAC converter online website. As the name of this website implies, it is an online file converter website that can convert the formats of various types of files like media files, documents, text files, archive files, etc. To convert MP3 to AAC, it offers a dedicated AAC to MP3 converter tool under its Audio Converter section. This tool allows users to convert multiple MP3 files of up to 1 GB combined size to AAC audio format. Plus, various tools to adjust the output audio parameters are also available in it such as audio codec, volume, fade in audio effect, etc. Now, follow the below steps.

How to convert MP3 to AAC online using FreeConvert.com:

• Go to this website and access its MP3 to AAC converter tool.
• After that, load one or more MP3 files that you want to convert to AAC format.
• Next, go to Settings to specify the output AAC audio parameters.
• Lastly, hit the Convert to AAC button to start the conversion process.

Additional Features:

• File Compressors: Use these tools to compress Video, JPEG, PNG, PDF, etc., files.
• Converters: It contains a good set of file converters like MP4 to GIF Converter, WebM to GIF Converter, Video to MP3, and more.
• Video Tools: Using these tools, users can Crop and Trim video files of various formats.

Final Thoughts:

It is another good MP3 to AAC converter online website that anyone can use to convert MP3 audio files to AAC, and other supported audio file formats.

aconvert.com

aconvert is yet another free MP3 to AAC converter website. Using this website, users can easily convert up to 10 MP3 files to AAC at a time. Apart from AIFF, it also converts MP3 audio files to WMA, AIFF, FLAC, AU, AMR, etc., formats. It also allows users to manually adjust audio bitrate and sample rate parameters.  Now, check out the below steps to convert MP3 to AAC using this service.

How to convert MP3 to AAC online using Aconvert:

• Go to this website and click on the Add Files button to load one or more MP3 files.
• After that, select the AAC audio format from the Target menu.
• Next, specify the audio bitrate and audio sample rate parameters.
• Lastly, click on the Convert Now button to start the conversion process.

Additional Features:

• Conversion Tools: This website offers multiple file conversion tools Ebook Converter, Audio Converter, Video Converter, and more.

Final Thoughts:

It is another good MP3 to AAC converter online website that anyone can use to batch convert MP3 audio files to AAC audio file format.

AnyConv

AnyConv is another free convert MP3 to AAC converter online website. Using this website, users can batch convert MP3 audio files to AAC at a time. Apart from AAC, it can also convert AIFF audio files to WAV, WMA, MIDI, OGG,  etc., formats. Now, follow the below steps to convert MP3 to AAC using this online converter.

How to convert MP3 to AAC online using AnyConv website:

• Go to this website and click on the Choose File button to load one or more MP3 audio files.
• Next, choose AAC as the output audio format from the Format menu.
• Lastly, click on the Convert button to start the conversion process.

Additional Features:

• This website offers many additional online tools such as Ebook Converter, Font Converter, Audio Converter, Archive converter, and more.

Final Thoughts:

It is another good MP3 to AAC converter online website that anyone can use to convert MP3 to AAC without much hassle.

freefileconvert.com

freefileconvert.com is the next free MP3 to AAC converter online website. According to its name, it is mainly a file conversion service through which users can convert files, media, and documents of various formats. Plus, batch file conversion is also supported by it. Although, at a time, it can only convert up to 5 MP3 audio files to AAC at time. It is also capable of converting MP3 files to AC3, AIFF, FLAC, M4A, OGG, etc., audio formats. . Now, follow the below steps to convert MP3 to AAC using this website.

How to convert MP3 to AAC online using freefileconvert.com:

• Go to this website and click on the Choose File button to load one or more MP3 audio files.
• Next, select the AAC format from the Output Format menu.
• Now, press the Convert button to start the conversion process.
• Lastly, click on the Download button to locally save the output AAC audio files.

Additional Features:

• This website comes with multiple file conversion tools such as Video Converter, Archive Converter, Presentation Converter, and more.

Final Thoughts:

It is another good MP3 to AAC converter online website that can also be used to convert documents, files, and media of various formats.

convertfiles.com

convertfiles.com is the last free MP3 to AAC converter online website. Using this website, users can convert one MP3 audio file to AAC at a time. It can also be used to convert audio files of other formats as it supports many input and output audio formats like FLAC, OGG, M4A, AAC, AMR, etc., formats. It also offers a send a download link to email feature that sends the link output AAC files to registered email addresses. Now, follow the below steps.

How to convert MP3 to AAC online using convertfiles.com:

• Open the interface of this website and click on the Browse button to load an MP3 audio file.
• After that, select MP3 from the input format menu and AAC from the output format menu.
• Lastly, click on the Convert button to start the conversion process.

Additional Features:

• This website can also be used to convert Archive Files, Presentation Files, Image Files, Audio Files, etc., of various formats.

Final Thoughts:

It is another good MP3 to AAC converter online website that anyone can use to convert one MP3 file to AAC at a time.