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WAV to MP3
Shrink WAV recordings into MP3s about a tenth of the size.
WAV stores sound uncompressed: CD-quality stereo takes about 10 MB a minute. An MP3 at 128 kbps takes about a tenth of that, which is why recordings, podcasts and voice notes are usually shared as MP3. This page takes AIFF and FLAC files too.
Almost any file
Images, vector art, video, audio, documents, spreadsheets, slides, ebooks and archives: more than 400 conversions. Before anything runs, Filebender says what a conversion will lose and estimates the size of video, audio and many pictures; other files show their size once converted. It compresses PDFs, pictures and videos to the size you choose.
No ads, no watermarks
With a free account: 20 files a day, 2 of them videos, each up to 500 MB. No plan has ads, and nothing is stamped on your files. A pass is one payment that never renews, and one you haven't used can be refunded in full.
Private by default
Files are deleted an hour after converting, or at once when you ask, and photo location is removed unless you choose to keep it. Photos converted to JPG, PNG or WebP are done on your device when your browser can, so they never leave it. They still need your account and count towards your plan.
How to convert WAV to MP3
- Create a free account with Google or your email address, or sign in.
- Choose your files: drop them on the box, pick them from your computer, open them from Google Drive, or paste a link.
- Pick the format each file should become. The gear button has size, quality and other settings.
- Press “Convert”, then download each file, or all of them in one ZIP.
Choosing a bitrate
128 kbps, the default, suits speech and everyday listening. For music, 192 to 320 kbps keeps it sounding close to the WAV, and even at 320 kbps the MP3 is under a quarter of the WAV's size. Spoken word can go down to 64 or 96 kbps.
What's lost
MP3 leaves out detail people struggle to hear, so it isn't a master copy. Keep the WAV if you'll edit, remaster or convert the recording again, and share the MP3. A 24-bit or high sample-rate WAV converts the same way, but the MP3 can't carry that extra resolution.
How it counts
Each WAV counts as one ordinary file: with a free account, 20 files a day, each up to 500 MB, and with a pass files up to 2 GB. The MP3's size is shown before you convert, worked out from its length and bitrate. Conversion runs on Filebender's servers, and files are deleted an hour after converting.
Related tools
- FLAC to MP3Shrink lossless FLAC music into MP3s that play almost everywhere.
- M4A to MP3Convert M4A audio, like iPhone voice memos, to MP3.
- Audio CompressorMake audio files smaller by lowering the bitrate.
- Trim AudioCut the silence, the intro or anything else off a recording or a song, using its waveform.
Questions
Can I cut the recording too?
Yes. Press Trim on the file to keep only the part you want. For a file added from your computer, the timeline can show its waveform, which makes the gaps easy to find.
Will the MP3 play everywhere?
Yes. MP3 plays on practically every phone, computer, car stereo and music player.
Can I make a FLAC instead?
Yes, in the Audio Converter. FLAC keeps every detail of the WAV at roughly half the size.
Is Filebender free?
Yes, with a free account: 20 files every day (up to 2 of them videos), each up to 500 MB, with no watermark and no ads. Make the account with Google or your email address. Files converted on your device count the same way as the rest. If you need more, a Day, Week or Month Pass is one payment that never renews; see the Pricing page.
What happens to my files?
It depends on the file. Pictures your browser can convert itself, and everything you do with the PDF tools, from merging and splitting PDFs to putting photos into one, are handled on your device and never leave it, unless you choose to send a file to Filebender's servers. They still need your account: Filebender receives only their type and size, to count them against your plan like any other file. Everything else is converted on Filebender's servers on Google Cloud and deleted an hour after the conversion finishes, or straight away when you press “Delete files now”. Nobody looks at your files, and they're never used for anything else.
Is there a size limit?
With a free account, each file can be up to 500 MB (about 4 minutes of HD phone video), and a batch can have up to 20 files. Any pass takes files up to 2 GB (about 15 minutes of HD video).