Conversion & Utility

Online Sample Rate Converter

Resample audio to 8 kHz, 16 kHz, 44.1 kHz, 48 kHz, or 96 kHz directly in your browser. Fast, accurate, and completely private.

Drop audio here or click to browse

Supports MP3, WAV, FLAC, M4A, OGG, AAC & WebM

Process

How Sample Rate Conversion Works

Upload Audio

Drop any audio file. Your browser's Web Audio API decodes it and reports its native sample rate (e.g., 44,100 Hz for most MP3 and WAV files).

Choose Target Rate

Pick from common rates: 8 kHz (telephony), 16 kHz (speech), 22.05 kHz, 44.1 kHz (CD), 48 kHz (professional), or 96 kHz (high-res). Conversion uses OfflineAudioContext for high-quality resampling.

Download WAV

The converted audio is encoded as PCM WAV. Preview it in-browser and download it — ready for DAWs, video editors, or voice assistants.

Common Sample Rates

RateCommon UseFrequency Range

8,000 HzTelephone, voice codecsUp to 4 kHz

16,000 HzSpeech recognition, VoIPUp to 8 kHz

22,050 HzLegacy multimedia, AM-radioUp to 11 kHz

44,100 HzCD audio, streaming, MP3Up to 22 kHz

48,000 HzProfessional audio, videoUp to 24 kHz

96,000 HzStudio recording, hi-resUp to 48 kHz

FAQ

Frequently Asked Questions

What is sample rate and why does it matter?

Sample rate is how many audio samples are captured per second. Higher rates can represent higher frequencies. CD audio uses 44,100 Hz; professional video production typically uses 48,000 Hz. Mismatched rates can cause playback speed issues or pitch shifts.

Will converting to a lower rate reduce quality?

Yes. Downsampling (e.g., 48 kHz → 16 kHz) removes frequencies above half the target rate. For music this is usually audible; for speech it is often acceptable. Upsampling (e.g., 16 kHz → 44.1 kHz) does not add information that wasn't there originally.

Does the file stay on my device?

Yes, entirely. All processing uses the browser's built-in OfflineAudioContext API. No audio data is transmitted to any server.

Why is the output always WAV?

WAV (PCM) is lossless and universally compatible. Browser APIs don't natively encode MP3 or AAC without additional external libraries. WAV ensures you get converted audio without any lossy compression artifacts.

Can I convert a 48 kHz file to 44.1 kHz for iTunes or Spotify?

Yes. Select 44,100 Hz as the target, convert, and download. Most streaming services and media distribution pipelines accept 44.1 kHz WAV files.