Convert Any Audio to MP3 Instantly

Got an audio file that nothing will play? Cacao Docs converts it to MP3 in seconds — free, private, works on any device.

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1.5M users
17,150 reviews

How It Works

Audio to MP3 Converter — Convert Any Audio File to MP3 Online Free | Cacao Docs
1
Upload Your Audio File. Drag any audio file into Cacao Docs or click to browse. WAV, FLAC, OGG, M4A, AAC, WMA, OGG — whatever format you've got, it works.
2
Cacao Docs Converts It to MP3. Our engine decodes your audio and outputs a high-quality MP3 in seconds. No settings to mess with, no waiting around.
3
Download Your MP3. Grab your MP3 and play it anywhere — phone, laptop, car stereo, streaming app. The most compatible audio format on the planet.

Your Complete Audio & Video Toolkit

Transcribe, convert, extract — everything audio & video, handled in one place.

AI Transcription

Speech to text with speaker labels, timestamps, and 95%+ accuracy.

Format Conversion

MP3, WAV, M4A, OGG, FLAC — convert any audio or video format instantly.

Video to Audio

Extract audio from MP4, YouTube, Zoom recordings, and more.

Lightning Fast

Most files processed in under three minutes. No waiting around.

No Signup
Start instantly
100% Secure
Auto-deleted
Browser-Based
No installs

People Love These Tools

Podcasters, researchers, marketers, and remote teams use our audio & video tools every day.

Feb 9
Converted my weird audio files in seconds
Had a bunch of audio files in formats nothing would play. Dropped them into Cacao Docs and got clean MP3s out in minutes. Didn't even need to know what format they were in.
Lena FischerInstagram logo
Lena Fischer
Jan 27
Best free audio converter I've found
Tried loads of converters before this. Cacao Docs is the only one that handled all my different audio formats without complaining. Fast, clean, no watermarks.
Emeka ObiInstagram logo
Emeka Obi
Jan 15
No sign-up, no drama, just works
Every other site wanted an account or showed me sketchy ads. Cacao Docs just converted my audio and let me download the MP3. Bookmarked for good.
Sofia AndersenInstagram logo
Sofia Andersen
824 people converted files today
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Trusted and Secured by Industry Experts

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Why People Pick Our Audio & Video Tools

Any Format, One Output

Got a weird audio format that nothing plays? Cacao Docs handles WAV, FLAC, OGG, M4A, AAC, WMA, and more — all converted to a clean, universally compatible MP3.

MP3 Plays Everywhere

MP3 is the universal audio standard — every phone, speaker, car stereo, and streaming app supports it. Cacao Docs gets your audio into that format fast.

High-Quality Output

Cacao Docs encodes your MP3 at high bitrate so the audio sounds clean and sharp. No muffled output, no weird artifacts — just good sound.

Batch Convert Fast

Got a stack of audio files in different formats? Cacao Docs lets you queue them up and convert them all to MP3 back to back. No repetitive uploading, no wasted time.

Transcribe After Converting

Once you have your MP3, run it through Cacao Docs AI transcription to get an accurate text transcript, subtitles, or captions. One platform, full workflow.

Private & Auto-Deleted

Your audio is encrypted on upload and wiped from Cacao Docs servers the moment your MP3 is ready. Nobody sees your files — ever.

Any Format, One Output

Got a weird audio format that nothing plays? Cacao Docs handles WAV, FLAC, OGG, M4A, AAC, WMA, and more — all converted to a clean, universally compatible MP3.

MP3 Plays Everywhere

MP3 is the universal audio standard — every phone, speaker, car stereo, and streaming app supports it. Cacao Docs gets your audio into that format fast.

High-Quality Output

Cacao Docs encodes your MP3 at high bitrate so the audio sounds clean and sharp. No muffled output, no weird artifacts — just good sound.

Batch Convert Fast

Got a stack of audio files in different formats? Cacao Docs lets you queue them up and convert them all to MP3 back to back. No repetitive uploading, no wasted time.

Transcribe After Converting

Once you have your MP3, run it through Cacao Docs AI transcription to get an accurate text transcript, subtitles, or captions. One platform, full workflow.

Private & Auto-Deleted

Your audio is encrypted on upload and wiped from Cacao Docs servers the moment your MP3 is ready. Nobody sees your files — ever.

Audio to MP3 Online

No signup needed. Just pick a tool and go.

Convert Audio to MP3
4.6
1,340 reviews
4.5
13,920 reviews
4.6
4,550 reviews

Frequently Asked Questions

Quick answers about our audio & video transcription and conversion tools.

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Audio to MP3 Converter — Convert Any Audio File to MP3 Online Free | Cacao Docs - Cacao Docs