compressvid.ioShrink a huge WAV into a portable MP3 that plays anywhere. Pick a bitrate, download the file — free, no watermark, nothing to install.
Need volume, waveform, or ringtone export? Open the full audio editor · M4R to MP3
WAV is studio-grade and enormous — a few minutes can be hundreds of megabytes. MP3 keeps the same audible story in a file that fits in a chat message, an email attachment, a website, or a phone with little space left. You choose the bitrate, convert in the browser, and download a standard .mp3 that plays on every device. Free, no watermark, nothing to install.
WAV is uncompressed. MP3 throws away sounds ears rarely hear — the bitrate decides how hard it compresses.
| Bitrate | Best for | Rough size for a 3-minute song |
|---|---|---|
| 128 kbps | Voice, podcasts, tiny attachments | ~2.5–3 MB |
| 160 kbps | Everyday music and sharing | ~3.5–4 MB |
| 320 kbps | Music masters you want to keep | ~7–8 MB |
Going the other direction is rare — MP3 to WAV only helps when an editor demands PCM. For normal listening and sharing, stay in MP3. Limits checked October 2026.
Three steps. No DAW required.
Drop in the file (M4A and FLAC also work). The browser preview loads so you can confirm it is the right take.
160 kbps is the everyday default. Use 320 for music you care about, 128 when the attachment must stay tiny.
Press Convert to MP3 and save the compressed file. It plays in every music app and messaging tool.
Most jobs come from these situations.
| Situation | Why MP3 helps | What to do |
|---|---|---|
| Email / chat attachment | WAV often exceeds size caps | Convert at 128–160 and attach the MP3 |
| Website or podcast upload | Hosts expect compressed audio | Export MP3 at 128–192 for speech |
| Phone storage / offline playlist | MP3 is many times smaller than WAV | Convert the library you want offline |
| Voice memo from a recorder | Recorders spit huge PCM files | Convert, then delete the WAV if space is tight |
| Share a demo mix | Friends cannot open giant WAVs on mobile | 160–320 kbps is plenty for a demo |
If you need to cut, fade, or change volume first, use the audio editor — it can export MP3 as well.
A focused one-job converter: WAV in, portable MP3 out. Deliberately small so you finish in under a minute.
128, 160, or 320 kbps CBR. Default 160 balances size and fidelity for most files.
Guests process daily up to 250 MB. Signed-in users get monthly credits for larger libraries.
If the source is not WAV but you still want MP3, the same tool works.
Trim, volume, and fades live in the audio editor — export MP3 from there when the job grows.
Answers before you compress the take.
Upload, pick a bitrate, download — free and no watermark.