Convert audio locally
Select an output format and optional resampling settings.
Progress0%
Choose a local audio file first.
Local output preview
Load audio to see the local output.
Features & quick guide
A clear local path from source audio to a reusable file.
Decode local audio with Web Audio, resample it and export MP3, WAV or OGG without uploading. Everything stays in this browser tab.
3-step guide
- 1Choose a local file or set your options.
- 2Adjust the controls and preview the local result.
- 3Run the workflow and download the Blob output.
Browser-only privacy
Files, decoded data and exports stay in memory or local Blob URLs in this tab.
Performance depends on device memory and browser support.
Frequently asked questions
Which formats can I use?
WAV, MP3, OGG and other browser-decodable audio are supported.
Is audio uploaded?
No. Decoding, resampling and encoding stay in this tab.
Why can a long file be slower?
Local encoding uses device CPU and memory; shorter files are easier to process.