Free Sample Rate Converter

Instantly change the sample rate of your audio files to 44.1kHz, 48kHz, 96kHz, and more.
Ensure perfect synchronization for video editing and audio mastering.

Online Audio Sample Rate Converter

Resample your original voiceovers and royalty-free tracks directly in your browser. Seamlessly convert between industry-standard frequencies.

What is Sample Rate Conversion?

Our Free Audio Resampler is an advanced online tool that changes the "resolution" of your digital audio files. Sample rate, measured in kilohertz (kHz), determines how many audio snapshots are captured per second. While 44.1kHz is the standard for music streaming, 48kHz is strictly required for modern video post-production. By doing this locally in your browser, your original studio recordings remain 100% secure, as no files are ever uploaded to a remote server.

How to change audio sample rate?

Upload your audio file, such as a WAV or MP3. Use the dropdown menu to select your desired target sample rate (ranging from low-fi 8kHz to high-resolution 96kHz). You can preview the track using the built-in waveform player. Once you click export, the tool mathematically recalculates the waveform and provides a pristine, uncompressed WAV file ready for your digital audio workstation (DAW).

Who uses this tool?

This browser-based audio resampler is heavily utilized by video editors needing to convert 44.1kHz podcast audio to 48kHz to perfectly sync with camera footage, sound designers matching the sample rate of their royalty-free samples to a master session, and independent music producers finalizing high-resolution tracks for streaming platforms.

How to Change Sample Rate in 3 Steps

Step 1

Upload Audio

Select your original royalty-free track or voiceover. We support MP3, WAV, M4A, and FLAC formats.

Step 2

Select Target Rate

Choose the exact sample rate (e.g., 48000 Hz for video) from the dropdown menu.

Step 3

Export Audio

Click Export to mathematically resample the track and download your new studio-quality WAV file.

Resampler Tool Area

Select Audio File

Supported formats: WAV, MP3, M4A, OGG, FLAC, AAC

Recommendation: For the best experience, use headphones. If you are on a mobile device without headphones, make sure your device is not on Silent/Mute mode.
Loading audio... Please wait
00:00 / 00:00

Choose Target Sample Rate

Which Sample Rate Should I Choose?

If you are unsure which frequency to pick, refer to this industry-standard guide below. Note: Upsampling a low-quality file to 96kHz will increase the file size but cannot magically create lost frequencies.

Sample Rate Best Used For Quality / File Size
8 kHz - 16 kHz Voice memos, Walkie-Talkies, VoIP, Telephone audio. Low Quality / Small Size
22.05 kHz - 32 kHz AM/FM Radio broadcasts, optimizing sounds for old mobile games. Medium Quality
44.1 kHz The Universal Standard. CD Audio, Spotify, Apple Music, MP3s. High Quality
48 kHz The Video Standard. YouTube, TV, Movies, Podcasts, TikTok. High Quality
88.2 kHz - 96 kHz Professional Studio Recording, Audio Mastering, Audiophile High-Res. Ultra Quality / Huge Size

Export Resampled Audio

Pro Tip: Need your file in .MP3 format? Export as WAV here, then use our fast converter.
WAV to MP3 Converter

Frequently Asked Questions

Is the Sample Rate Converter really free?
Yes. This online audio resampler is completely free, requires no signup, and has no daily limits. You can process and export as many original tracks as you need.

Are my audio files safe and private?
Absolutely. All resampling and audio conversions are performed locally within your web browser's memory. Your private audio files and original recordings are never uploaded to any external servers.

What is a Sample Rate (kHz)?
Sample rate is the number of times per second an analog audio signal is "sampled" or measured to convert it into a digital file. For example, 44.1kHz means the audio was sampled 44,100 times per second (Standard CD quality), while 48kHz is the standard for video production.

Why would I need to change the sample rate?
Different platforms have different requirements. If you recorded a podcast at 44.1kHz but your video editor requires 48kHz to sync with the camera footage perfectly, you need to resample the audio to prevent playback speed or pitch issues.

Does upsampling to 96kHz improve audio quality?
No. Converting a file from 44.1kHz to 96kHz (upsampling) does not magically add missing high-resolution data. However, it is often required if your digital audio workstation (DAW) project is set to 96kHz and you need to import a lower-quality sample without causing glitches.

Do I need to install any software?
No. The Sample Rate Converter works entirely online directly within your web browser, removing the need to install or download heavy audio editing software.