BeneficResample Audio
Convert between 44.1, 48, 96, 192 kHz and more — output as 16- or 24-bit WAV.
Drop a file, pick a target sample rate and bit depth, and download. Everything runs locally — your audio never leaves your device.
Target sample rates
22.05 kHz 32 kHz 44.1 kHz 48 kHz 88.2 kHz 96 kHz 176.4 kHz 192 kHz
Accepted inputs
FLAC ALAC MP3 WAV DSF Ogg Opus AAC AIFF M4A
Frequently asked questions
Everything you might wonder about resampling audio in Benefic.
What does the resampler do?
It decodes your source audio, converts it to the target sample rate you pick, and writes out a new WAV file at either 16- or 24-bit PCM. Everything happens in the browser — your file is never uploaded.
Which rates can I target?
22.05 kHz, 32 kHz, 44.1 kHz (CD), 48 kHz (DVD / streaming), 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz. The output is WAV/PCM so you can drop it into any DAW or playback pipeline without re-decoding.
What kind of resampling is used?
Linear interpolation between source samples. That is fine for everyday rate conversion (e.g. 48 kHz → 44.1 kHz for CD mastering) and is faster than a polyphase / sinc resampler on large files in the browser. For mastering-grade downsampling we recommend running the output through a dedicated offline tool.
Which input formats are supported?
Anything Symphonia can decode in the browser: FLAC, ALAC, MP3, WAV, DSF (DSD), Ogg Vorbis, Opus, AAC (ADTS or M4A), and AIFF. DSF inputs are decoded to PCM before resampling.
Do my audio files get uploaded to a server?
No. The resampler runs entirely in your browser as WebAssembly. Your audio is decoded, resampled, and re-encoded locally — nothing is sent over the network.
Does it work offline?
Yes, once the page has loaded. The resampler is a static page plus a WebAssembly module — after the first visit it will run without a network connection.