Jazz trioInstrumental132 BPM
Last Set
Made with Ken Music 1.5 · Hear what bitrate does to brushed drums
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PromptJazz piano trio, swinging piano solo, upright bass, brushed drums, late-night club, 132 bpm
Free · no upload · up to 250 MB
WAV to MP3 converter: a much smaller file, and no upload
Turn a big WAV into an MP3 you can email, upload or play almost anywhere. At 128 kbps a normal WAV gets about 11 times smaller. It all happens in your browser, so nothing is uploaded, and there's no account or watermark.
Bitrate
Converted on your device, never uploaded
- Nothing is uploaded
- 128, 192 or 320 kbps
- WAV files up to 250 MB
- Free, no account
Updated by the Kenerate AI team
On this page
Quick answer
How do you convert WAV to MP3?
To convert WAV to MP3, choose your file in the tool above, pick 128, 192 or 320 kbps, then press Download MP3. Your browser does the work, so the file is never uploaded, and it's free with no account. It takes WAV files up to 250 MB, about 24 minutes of CD-quality stereo. The MP3 comes out 4 to 11 times smaller, depending on the bitrate. Pick 192 kbps if you aren't sure.
Key facts
- Opens
- WAV, including 8, 16, 24 and 32-bit float PCM, plus M4A, MP3 and OGG (what your browser decodes)
- Won't open
- Compressed ADPCM WAV failed in Edge
- Download
- MP3 at a constant 128, 192 or 320 kbps, 44.1 kHz
- Size saved
- A CD-quality WAV gets about 11 times smaller at 128 kbps, 7 at 192 and 4 at 320
- Channels
- Stereo stays stereo, mono stays mono
- File limit
- 250 MB (about 24 minutes of CD-quality stereo WAV)
- Files at once
- One
- Privacy
- Processed on your device
- Cost
- Free, no account, no watermark
Listen first
No file to hand?
Real AI generations from the Music Studio. These are already MP3s, but the converter opens them too, so you can try a lower bitrate.
Boom-bapInstrumental90 BPM
Crate Digger
Made with MiniMax Music 3.0 · A beat to send to a friend
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PromptClassic boom-bap hip-hop beat, dusty kick and snare, chopped soul sample, deep bass, head-nod groove, 90 bpm
EDMInstrumental128 BPM
Hands Up
Made with MiniMax Music 3.0 · Busy mixes show compression first
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PromptBig-room EDM festival track, huge build-up, massive drop with punchy kick and lead synth, crowd energy, 128 bpm
How to
How to convert WAV to MP3
- Time needed
- Steps
- 4 steps
Step 1
Choose your WAV
Pick a file up to 250 MB. It opens on your device.
Step 2
Pick a bitrate
128 kbps suits speech, 192 kbps suits most music, and 320 kbps keeps the most detail.
Step 3
Check it
Press Preview to hear it. The tool also shows the length and the MP3 size.
Step 4
Download the MP3
It saves under the same name with an .mp3 ending. Your WAV isn't changed.
See it in the app
Open Music Studio and pick a song from a prompt, a song from your lyrics, or an instrumental.
1 / 5 · Choose what to make
Watch the tour · 1:24
Prompt & lyrics to song, instrumentals, models, your tracks & chat
Chapters
Engines
Engines for making new audio
Facts from the app's engine list, for when you'd rather make a track than convert one.
ElevenLabs
ElevenLabs Music v2.5
- Length
- Exact length, 10 s–10 min
- Modes
- Song · Lyrics · Instrumental
Open ElevenLabs Music v2.5Best for
Set the exact duration; clean studio mix
Kenerate
Ken Music 1
- Length
- ~30 s
- Modes
- Song · Instrumental
Open Ken Music 1Best for
Quick clips — hooks, jingles, intros
Kenerate
Ken Music 1.5
- Length
- Up to ~3 min
- Modes
- Song · Lyrics · Instrumental
Open Ken Music 1.5Best for
Default engine: full songs with vocals in any language; can take an image as inspiration
MiniMax
MiniMax Music 3.0
- Length
- Up to 4 min
- Modes
- Song · Lyrics · Instrumental
Open MiniMax Music 3.0Best for
Follows [Verse]/[Chorus] section tags closely
Prompt recipe
Or skip the conversion and make new audio
Open any of these in the Music Studio if a new track would suit you better than a converted one.
- Voice recording
- 128 kbps. Speech doesn't need more, and the file is about 11 times smaller.
- Podcast episode
- 128 kbps for talk, 192 kbps if it has a music bed. Check your host's own advice too.
- Music for everyday listening
- 192 kbps is a safe middle choice.
- Your own mix or master
- 320 kbps, the highest bitrate MP3 allows. Keep the WAV as your master.
- Email or upload limit
- Check the MP3 size in the tool, then go lower if it's too big.
Podcast bed
Calm background music for a spoken podcast, soft plucked guitar, light percussion, steady
Intro sting
Short bright podcast intro sting, clean electric piano and light drums, ends on a warm chord
Video background
Upbeat background music for a short video, clean electric guitar and hand claps
Study loop
Gentle lofi study loop, warm piano, vinyl crackle, slow steady beat
Tips
Good to know before you convert
A few things that save a second try.
Keep your WAV. It's the full-quality copy, and an MP3 can't be turned back into it.
Make every edit in the WAV first, then export the MP3 last, so the audio is only compressed once.
Tags and cover art aren't copied, so add them again in your music app if you need them.
Only need one section? Cut it with the audio trimmer first, then convert the WAV it saves.
Only convert audio you have the right to use.
FAQ
WAV to MP3 Converter questions
10 questions
How do I convert WAV to MP3 for free?
Choose your file in the converter at the top of this page, pick a bitrate, then press Download MP3. It's free, with no account and no watermark.
Link to this answerIs my WAV uploaded anywhere?
No. Your browser decodes the file and builds the MP3 on your device, so the audio never reaches our servers. The only download is the small encoder itself, which the page fetches the first time you export.
Link to this answerHow much smaller is an MP3 than a WAV?
A CD-quality stereo WAV takes about 10.6 MB a minute. The MP3 takes 0.96 MB at 128 kbps, 1.44 MB at 192 kbps and 2.4 MB at 320 kbps, so it's about 11, 7 or 4 times smaller. Our three-minute test WAV went from 31.75 MB to 2.88 MB at 128 kbps.
Link to this answerDoes converting WAV to MP3 lose quality?
Yes. WAV usually holds uncompressed audio, and MP3 is lossy, so some detail is removed for good. At 192 kbps or above, most people won't notice on everyday music. Keep the WAV if you may need the full quality later.
Link to this answerWhich bitrate should I use for music, voice and podcasts?
Use 128 kbps for voice and talk podcasts, 192 kbps for most music and podcasts with music, and 320 kbps for a mix you care about. If you aren't sure, 192 kbps is a sensible default.
Link to this answerWhat's the biggest WAV I can convert?
250 MB, which is about 24 minutes of CD-quality stereo. Higher-resolution files run out sooner: about 12 minutes of 32-bit float at 44.1 kHz, or 7.5 minutes of 24-bit audio at 96 kHz. A 262 MB WAV worked in Edge on a desktop. We haven't tested phones, which have less memory.
Link to this answerCan it convert 24-bit or 96 kHz WAV files?
Yes. In our tests 24-bit 96 kHz and 32-bit float WAV files opened in Edge. The MP3 is always 44.1 kHz, so higher sample rates are resampled on the way.
Link to this answerWhy won't my WAV open?
WAV is a container, so the audio inside can vary. Ordinary PCM files worked in our tests, while a compressed Microsoft ADPCM WAV failed in Edge. For those, try ffmpeg: ffmpeg -i input.wav -b:a 192k output.mp3
Link to this answerCan I convert several WAV files at once?
No, this tool handles one file at a time. For a big batch, a desktop tool such as ffmpeg will be quicker.
Link to this answerIn depth
WAV to MP3 Converter, explained
What works, what to avoid, and how the pieces fit.
On this page
WAV vs MP3: what changes when you convert
WAV is a container that most often holds uncompressed PCM audio [1], which is why the files are so large. CD-quality stereo needs 1,411 kbps, or about 10.6 MB a minute. MP3 uses lossy compression to remove detail that listeners are less likely to notice [2], so it needs far less space.
That trade only goes one way. Going from WAV to MP3 is a single lossy step, so it's the cleanest way to make an MP3. Going back with the MP3 to WAV tool gives you a bigger file but doesn't restore what was removed.
How much smaller your file gets
This tool writes a constant bitrate, so the MP3 size depends only on the length. These figures compare with a CD-quality stereo WAV.
- 128 kbps — about 0.96 MB per minute, around 11 times smaller. A three-minute WAV goes from 31.75 MB to 2.88 MB.
- 192 kbps — about 1.44 MB per minute, around 7 times smaller. The same WAV comes to 4.32 MB.
- 320 kbps — about 2.4 MB per minute, around 4 times smaller, and the highest bitrate MP3 supports [2]. The same WAV comes to 7.2 MB.
- Mono WAV — it starts at half the size, but the MP3 is the same size as stereo at the same bitrate, so 128 kbps is usually plenty.
How long a WAV fits in 250 MB
WAV size depends on the sample rate, bit depth and channels, so the same limit covers different lengths. The tool checks the file size, not the length.
- 16-bit, 44.1 kHz stereo (CD quality) — about 24 minutes.
- 32-bit float, 44.1 kHz stereo — about 12 minutes.
- 24-bit, 96 kHz stereo — about 7.5 minutes.
What happens to your file
When you choose a file, the browser reads it from your disk and decodes it to raw audio in memory. The first time you export, the page fetches a 133 KB copy of the LAME MP3 encoder [3] from our site, and that encoder turns the audio into an MP3 on your device. Audio only travels from your disk to your browser, and closing the tab clears it.
The MP3 is always 44.1 kHz, so a 48 or 96 kHz file gets resampled. Mono files stay mono, and a surround file keeps only its first two channels.
How long it takes
We timed the converter's decode and encode steps on 5 November 2026 in Edge on one Windows desktop, using generated test tones. Real music may take a little longer, and we haven't measured phones, Safari, Firefox or Chrome.
- Three-minute WAV, 31.75 MB — opened in under a second. It took about 3 seconds at each bitrate.
- Almost 25 minutes of WAV, 262 MB — opened in 1.2 seconds. It took 24 seconds at 128 kbps (23.76 MB) and 27 seconds at 320 kbps (59.4 MB).
- Three-minute 24-bit 96 kHz WAV, 103.7 MB — came out as a 4.32 MB MP3 at 192 kbps.
- Microsoft ADPCM WAV — wouldn't open in Edge.
When a browser tool isn't the right fit
This converter suits one file you want to keep private. Use something else in these cases:
- Files over 250 MB, batches or ADPCM WAV — ffmpeg is free and runs on your own computer: ffmpeg -i input.wav -b:a 192k output.mp3
- You want part of the file — the audio trimmer saves just the section you keep.
- Your file is an M4A — the M4A to MP3 tool explains what changes for that format.
- The audio is inside a video — pull it out first with the extract audio from video tool.
By the Kenerate AI teamLast updated and reviewed
We build and run the Kenerate Music Studio. Every demo on this page is a real output of the engine named on it, made from the prompt shown; engine facts were checked against the app's code.
Sources: wasm-media-encoders (LAME compiled to WebAssembly; LAME is LGPL) · FFmpeg documentation
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