Which audio formats can I convert to MP3?

OPUS, M4A, AMR, AAC, 3GP, WAV, MP3, and other common mobile formats.

Are my files stored on the server?

They are stored temporarily for processing and automatically deleted every 24 hours.

Can I transcribe my audio to text?

Yes, we offer online transcription for MP3, WAV, OPUS, AMR, M4A, OGG, and 3GP. Files are deleted after 24 hours.

Yes, you can trim a single file by setting start and end, or adjust clips when mixing multiple audios.

Online MP3 converter: complete guide (WhatsApp to MP3, mix & compress)

Convert your audio to MP3 in 3 steps

Upload your file (OPUS, AMR, M4A, OGG, WAV, AAC, 3GP or video), choose the quality (e.g., 64–128 kbps for voice) and download the MP3. 100% online, fast, and no installs.

This page is our online MP3 converter: complete guide. You’ll learn how to turn WhatsApp to MP3, how to cut and mix clips, how to compress audio files so they take up less space without losing quality, and how to use the bitrate calculator to pick the best size/quality balance.

Converting your audio to MP3 here is fast, safe, and free. This is the flow:

Conversion flow

Lightweight MP3 converter: upload your audio, convert to MP3, download your MP3, and files are automatically deleted every 24 hours

1. Upload your file from your phone or computer.
2. We convert to MP3 automatically in seconds.
3. Download your MP3 directly in the browser.
4. Automatic deletion: files are removed on a rolling basis every 24 h.

🎯 Convert your audio to MP3 now

Open converter

100% online • No installs • Works on mobile and PC

Service benefits

✅ Free and unlimited
✅ No account required
✅ Compatible with OPUS, AMR, OGG, M4A, AAC, WAV, MP3, and more
✅ Built for mobile (WhatsApp, Telegram, voice recorders)
✅ Instant download link
✅ Automatic deletion every 24 h
✅ Extra tools: trim, mix, video to MP3, and bitrate calculator

Supported formats

Convert any of the following to MP3:

Additional services

Transcribe audio to text

Turn voice notes, interviews, or recordings into text in seconds. Supports MP3, WAV, OPUS, AMR, M4A, OGG, and 3GP.

Transcribe audio

Convert video to MP3

Upload your video and download the audio as MP3. Choose quality: 64k, 128k, or 192k.

Convert Video to MP3

Use only content you own rights to or have permission for.

Trim audio (MP3)

Upload an audio file, set start and end precisely, and download the clip as MP3. Great for voice notes or ringtones.

Trim audio

Mix audio (with crossfade)

Combine multiple clips, visually edit each one, and add smooth transitions.

Mix audio

Bitrate & size calculator

Estimate how big your MP3 will be from duration and bitrate, or find the right bitrate to stay under a size limit (WhatsApp, email, cloud, etc.).

Open bitrate calculator

Privacy & retention

Files are processed only for conversion and are automatically deleted every 24 h. They are not shared with third parties.

Start converting

Frequently asked questions

Which formats can I convert?

AMR, OPUS, OGG, M4A, WAV, AAC, 3GP, and WhatsApp audio — all convertible to MP3.

Is it safe to upload my audio?

They’re processed only for conversion and deleted automatically every 24 h.

How long does conversion take?

Usually seconds, depending on file size and your connection.

Can I transcribe audio to text here?

Yes. Start at Transcribe audio to text. Files are deleted after 24 h.

Can I convert videos to MP3?

Yes, with the Video to MP3 tool (64k, 128k, or 192k). Use only content you have rights/permission for.

Can I trim my audio?

Yes. You can trim a single audio by setting start and end, or adjust short clips inside Mix audio if you’re joining several files and adding crossfades.

Can I mix multiple audio files?

Yes. Use Mix audio to combine multiple clips, edit each one, and add smooth transitions.

How do I know which bitrate or size to choose?

You can use the bitrate calculator to estimate how big an MP3 will be from its duration and bitrate, or to find the right bitrate to stay below a size limit (for example, WhatsApp, email, or your cloud service).