Online Tool Store
Sample Rate Converter
Free sample rate converter: drag in audio to resample from 8 kHz to 96 kHz, choose mono/stereo and 16-bit or 32-bit float, compare waveforms, download a WAV.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Sample: studio-clip.wav
00:12 · 44,100 Hz · Stereo · 2.02 MB
Local processing
Your browser decodes and resamples the audio. No recording or file is uploaded.
Conversion settings
Choose the target sample rate
Source
44.1 kHz
Target
48 kHz
Est. WAV
2.20 MB
Choose your own audio file to enable conversion.
How it works
- Drag and drop an audio file, or click to browse - your browser reads its real sample rate, channels, and duration instantly.
- Pick a target rate from 8 kHz (telephony) up to 96 kHz (hi-res); the rate that already matches your file is disabled automatically.
- Choose mono, stereo, or original channels, and 16-bit PCM or 32-bit float output.
- Resample locally, compare the real input and output waveforms, preview the WAV, and download it.
FAQ
What is an audio sample rate?
Sample rate is how many measurements of the audio waveform are stored per second. 44.1 kHz is common for music, while 48 kHz is standard for video production.
Does converting to a higher rate improve quality?
No. Upsampling can meet a project requirement but cannot restore detail absent from the source. Downsampling may remove frequencies above the new Nyquist limit.
What output format is created?
The browser creates an uncompressed WAV - 16-bit PCM for standard compatibility, or 32-bit IEEE float for extra headroom in further processing - at your selected sample rate and channel count.
Is my audio uploaded?
No. The Web Audio API decodes and resamples the file locally, and the WAV is assembled in browser memory.
Which sample rate should I pick?
44.1 kHz for music and CD-style delivery, 48 kHz for video and broadcast, 16 kHz for speech-to-text and ASR pipelines, and 8 kHz for telephony/IVR systems. 96 kHz is for hi-res archival work.
Why is the target rate matching my file disabled?
There's nothing to convert if the target equals your file's current sample rate, so that preset is disabled automatically once your file loads.
What audio file formats can I upload?
WAV, MP3, M4A, OGG, AAC, FLAC, and any other format your browser can decode. If a file fails to decode, try converting it to WAV or MP3 first.
Do I need to sign up or install anything?
No. The converter is free, requires no account, and runs entirely as a page in your browser - there is nothing to install.
Can I convert MP3 to WAV with a different sample rate in one step?
Yes. Upload an MP3 (or any browser-decodable format), pick a target rate, and the download is a WAV at that rate - the format change and the resample happen together.
How we compare
| Feature | Online Tool Store | Notevibes | xcodecpack.com | ToolMagic |
|---|---|---|---|---|
| Local processing, never uploaded | ✓ | ✓ | ✗ (server-side FFmpeg) | ✓ |
| 16-bit PCM and 32-bit float output | ✓ | ✗ (MP3 only) | ✓ | ✓ |
| Real input/output waveform preview | ✓ | ✗ | ✗ | ✓ |
| Telephony and speech presets (8/16 kHz) | ✓ | ✓ | ✓ | ✓ |
| Drag-and-drop upload | ✓ | ✓ | ✓ | ✓ |
Compared September 2026 against notevibes.com/sample-rate-converter, xcodecpack.com/sample-rate-converter, and toolmagic.io's audio converter.