Free tools
MP3 converter for audio files
Use this MP3 converter online to change an audio file to MP3: add the file and download the result. Conversion is free, runs in your browser, and needs no signup or upload.
Drop a file or click to choose
Free · no signup · runs in your browser · nothing uploads
This is a video file. The tool uses its audio, so the result is audio only.
Want the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWant the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWhy is this free? Hushscript runs it entirely in your browser. No server processes your file, so there's nothing to charge for.
How to convert audio to MP3 online
Add one supported audio or video file, then download the MP3. This free conversion happens on your device, with no signup or upload.
Which audio files can become MP3?
This audio to MP3 converter accepts WAV, M4A, FLAC, OGG, AAC, Opus, AIFF and WMA files, as well as .oga and .weba audio. It also accepts video files and uses their audio, so the MP3 has no picture. An extension alone cannot guarantee conversion: the audio codec inside the file must work with the available browser conversion path. For a specific pair, see WAV to MP3, M4A to MP3 or FLAC to MP3.
Make an MP3 listening copy
An MP3 can help when a player or sharing workflow accepts MP3 but not your source format. The output uses lossy compression with a 192 kbps target. Converting an MP3 re-encodes it at the same target; actual bitrate can vary with source sample rate and encoder. It cannot restore detail missing from the original. File size and playback depend on the source and your player; keep your original and test the download where you plan to use it.
Local conversion and separate transcription
This converter keeps the audio on your device. If you need words instead of another audio file, you can transcribe the recording through Hushscript’s separate service without converting it here first. Transcription uploads prepared audio and requires an account. Speaker labels are available when selected. Eligible personal accounts can receive 30 free minutes once after successful card verification, or with their first purchase if not already granted.
Updated:
Frequently asked questions
Is this online MP3 converter free?
Yes. Converting an audio file to MP3 in your browser is free and needs no account. Transcription is a separate service with its own account and minute pricing.
Does converting audio to MP3 upload my file?
No. The converter processes the file in your browser and downloads the MP3 to your device. Choosing transcription separately uploads prepared audio.
Can I convert WAV, M4A, FLAC, OGG or AAC to MP3?
You can add audio files with these extensions, as well as Opus, AIFF and WMA. Video files work too; the MP3 then holds only their audio. Conversion depends on the codec inside the file and your browser or device.
Can I choose the MP3 bitrate?
This MP3 file converter targets 192 kbps and does not offer a bitrate selector. Actual bitrate can vary with source sample rate and encoder; file size and sound also depend on the source.
Will the MP3 play on every device or always be smaller?
No. Check whether your player supports MP3 and test the download there. The file size depends on the source and length, so keep the original if you need it.
Can I transcribe the audio instead?
Yes, through separate Hushscript transcription, which uploads prepared audio and requires an account. Speaker labels are available when selected.
Need the words? Transcribe it with 30 free minutes
Preview up to 5 minutes before you create an account, and a new personal account gets a free preview of its first upload in the app. Full transcription needs an account and minutes; eligible personal accounts get 30 free minutes once, after card verification or with a first purchase. No subscription.
Get 30 free minutes