Audio Format Converter: Export Browser-Decoded Audio as WAV
Convert supported audio to PCM WAV with FindUtils. Learn the current output limit, sample-rate behavior, file checks, and why WAV cannot restore lost detail.
Fix compatibility issues or prepare audio for different platforms. Resampling changes how many times per second your audio is measured — different devices and services require different rates.
Drop your audio file here or click to browse
Supports MP3, WAV, OGG, FLAC up to 100MB
How to Resample Audio Online
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Upload Your Audio File
Drag and drop your audio file into the upload area or click to browse. Supports MP3, WAV, OGG, and FLAC files up to 100 MB. -
Choose a Target Sample Rate
Select from quick presets like CD to Video (44.1 kHz to 48 kHz), For YouTube, or For Podcast. You can also enter a custom sample rate in Hz. -
Resample Your Audio
Click Resample Audio. The tool processes your file entirely in the browser using the Web Audio API with high-quality resampling algorithms. No server upload required. -
Preview and Download
Listen to the resampled audio directly in your browser. Once satisfied, click Download to save the resampled file as a WAV to your device.
Guides and articles
Read instructions and examples for this tool.
Audio Metadata Extractor: Duration, Channels and Bitrate Estimate
Inspect audio duration, channels, decoded sample rate, and estimated bitrate with FindUtils. Learn which fields require a separate tag or codec reader.
Audio Resampler: Change Sample Rate and Export WAV
Resample supported audio to a selected sample rate with FindUtils. Compare 44.1 kHz and 48 kHz, check WAV output, and understand conversion limits.
Audio Trimmer: Select a Time Range and Export WAV
Trim a recording with the FindUtils Audio Trimmer. Set start and end times, preview the cut, export WAV, and check the result for clicks or missing audio.
Common Use Cases for Audio Resampling
Video Editing and Post-Production
Most video editing software and broadcast standards require 48 kHz audio. If your music or voiceover was recorded at 44.1 kHz, resampling ensures sync and compatibility across your entire timeline.
Podcast and Voice Optimization
Reduce file size by downsampling voice recordings to 22.05 kHz or 16 kHz without noticeable quality loss. Spoken content rarely benefits from sample rates above 24 kHz, making smaller files ideal for podcast hosting.
Music Distribution and Streaming
Streaming platforms like Spotify and Apple Music accept 44.1 kHz or 48 kHz audio. If your tracks were recorded at higher rates (96 kHz or 192 kHz), downsample them to meet platform specifications while maintaining audible quality.
Combining Audio from Multiple Sources
When merging tracks recorded at different sample rates, mismatched rates cause glitches and drift. Resample all sources to a common rate before mixing to ensure clean, artifact- output.
Why use our Audio Resampler?
Our audio resampler lets you change the sample rate of your audio files to match specific requirements. Whether you need CD quality (44.1 kHz), professional video standards (48 kHz), or optimized voice recordings (16 kHz), this tool has you covered. Use our quick conversion presets for common scenarios like preparing music for video editing, optimizing podcast audio, or matching platform requirements for YouTube and Spotify. All processing happens in your browser using the Web Audio API's high-quality resampling algorithm. Your files are never uploaded anywhere.
Audio resampling is the process of converting an audio file from one sample rate to another. Sample rate determines how many snapshots of sound are captured each second, measured in Hertz (Hz). Standard rates include 44.1 kHz for CD-quality music, 48 kHz for video and broadcast, and 96 kHz or 192 kHz for high-resolution studio recordings. Changing between these rates is essential when your audio needs to meet the specifications of a particular platform, device, or workflow.
This online audio resampler processes files entirely in your browser using the Web Audio API. No files are uploaded to any server, so your recordings stay private. Upload an MP3, WAV, OGG, or FLAC file, choose a target sample rate from the quick presets or enter a custom value, and download the resampled result as a lossless WAV. If you also need to change the file format, use the Audio Format Converter to encode into MP3, OGG, or FLAC. For trimming silence or cutting sections before resampling, the Audio Trimmer lets you edit audio without leaving your browser.
Whether you are preparing voiceover for a video project, optimizing podcast episodes for smaller downloads, extracting audio from video with the Video to Audio converter and then matching a target rate, or combining recordings from different devices, this tool handles the conversion in seconds. Check embedded metadata before and after resampling with the Audio Metadata Extractor to confirm the new sample rate was applied correctly.
How it compares
Desktop audio editors like Audacity and Adobe Audition include resampling as one feature among hundreds, but they require installation, project setup, and navigating complex menus for a simple rate conversion. Online alternatives often upload your files to remote servers, raising privacy concerns for unreleased music or confidential recordings. This browser-based audio resampler runs entirely on your device with no upload, no signup, and no usage limits. Processing uses the Web Audio API's built-in high-quality resampling algorithm, the same engine used by professional web applications.
Compared to command-line tools like FFmpeg or SoX, this resampler offers an immediate visual interface with quick presets for common conversions such as 44.1 kHz to 48 kHz. You get a real-time audio preview before downloading, something that requires extra steps in terminal-based workflows. For users who need batch processing or scripting, FFmpeg remains the better choice, but for quick one-off conversions this tool is faster and requires zero setup.
Audio Resampling Tips
- Always resample before editing. Converting sample rates after applying effects can introduce subtle artifacts that degrade your final mix.
- Use 48 kHz as your default for video projects. It is the universal standard for film, television, YouTube, and streaming platforms.
- Downsampling removes frequencies above the new Nyquist limit. For music, avoid going below 44.1 kHz to preserve the full audible spectrum (20 Hz to 20 kHz).
- For voice-only content like podcasts or phone systems, 16 kHz to 22.05 kHz is sufficient and dramatically reduces file size compared to 44.1 kHz or 48 kHz.
- If you need a different output format after resampling, use an audio format converter to encode the WAV result into MP3, OGG, or FLAC.
Frequently Asked Questions
What is sample rate?
Sample rate is the number of audio samples captured per second, measured in Hz. Higher sample rates capture more detail but create larger files. Common rates: 44.1 kHz for music, 48 kHz for video.
What sample rate should I use?
44.1 kHz is CD quality and good for music. 48 kHz is standard for video and streaming platforms. Use our Quick Presets for automatic recommendations based on your use case.
Will resampling affect audio quality?
Downsampling removes high-frequency content above the Nyquist frequency. Upsampling doesn't add new detail but can improve compatibility. Our tool uses high-quality algorithms to minimize artifacts.
Are my files uploaded to a server?
No, all processing happens entirely in your browser. Your files never leave your device.
What output format is used?
Resampled audio is output as WAV format, preserving the highest possible quality.
What audio formats can I resample?
You can upload MP3, WAV, OGG, and FLAC files up to 100 MB. The resampled output is always a lossless WAV file. If you need a different format afterward, use the Audio Format Converter.
What is the difference between 44.1 kHz and 48 kHz?
44.1 kHz is the CD standard and captures frequencies up to 22.05 kHz, covering the full range of human hearing. 48 kHz is the video and broadcast standard, capturing up to 24 kHz. For most listeners the difference is inaudible, but matching the correct rate avoids sync issues in video editing.
Can I upsample audio to improve quality?
Upsampling increases the sample rate but does not add new audio detail that was not in the original recording. It is useful for meeting format requirements, such as converting a 44.1 kHz file to 48 kHz for a video editor, but it will not make a low-quality recording sound better.
Does this audio resampler require a signup?
No. It is available with no signup, and no usage limits. All processing happens in your browser, so there are no server costs to pass on to users.
What sample rate does YouTube recommend?
YouTube recommends 48 kHz for uploaded audio. While it accepts other rates, 48 kHz avoids an extra server-side conversion step and preserves the best possible quality on the platform.