Step 01
Upload your audio files
Add one or more audio files from your device. The converter supports popular formats such as MP3, WAV, OGG, AAC, AIFF, M4A, WMA, and FLAC.
Audio Converter Online
Convert audio formats directly in your browser. Batch process files, choose the output format, and download results without uploading audio to a backend server.
FAST · LOCAL · PRIVATE
Upload audio files to convert
Supports MP3, WAV, OGG, AAC, AIFF, M4A, WMA, FLAC · Up to 50MB per file · Batch convert in browser
Files in queue: 0/50
Conversion runs locally in your browser for supported files. Your audio is not uploaded to a backend server for processing.
How to convert audio online in 3 simple steps
FreeTTS Audio Converter lets you upload multiple files, choose one output format, and convert audio directly in your browser with a simple batch workflow.
Step 02
Choose the output format
Select the format you want to convert to, including MP3, WAV, OGG, AAC, AIFF, M4A, or FLAC. All files in the queue will use the same output format.
Step 03
Convert and download
Start batch conversion in your browser, then download each converted file one by one or save all completed files together as a ZIP file.
Why use FreeTTS Audio Converter
Built for fast audio conversion, easy batch processing, and private local browser use, FreeTTS helps you change audio formats without a complicated workflow.
Convert audio directly in your browser
Your conversion runs locally in the browser, so you can process files without uploading audio to a backend server.
Batch convert multiple audio files
Upload several files into one queue, choose a target format once, and convert them together in a single workflow.
Support for popular audio formats
FreeTTS Audio Converter works with common formats like MP3, WAV, OGG, AAC, AIFF, M4A, WMA, and FLAC for flexible everyday conversion.
Easy download and queue control
Download finished files individually, save completed results in a ZIP file, remove single items, or clear the whole queue before starting again.
Audio Converter FAQ
Find answers about supported formats, browser-based conversion, batch processing, downloads, and queue behavior in FreeTTS Audio Converter.
No. The current conversion workflow runs fully in your browser, and your audio files are not uploaded to a backend server for processing.