Convert WMA to OPUS offline by JavaScript

Convert WMA to OPUS offline

Convert local WMA files to OPUS files offline by JavaScript in your web browser without any software downloads or file uploads!

Files:

Target:

Audio bitrate:

Sample rate:

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OUTPUT FILES:

#	File Name	File Size	Actions

How to convert WMA to OPUS offline

Choose local WMA files, choose "OPUS" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation. Use online converter instead if this offline converter doesn't work in your web browser.

Name	WMA	OPUS
Full name	Windows Media Audio	Opus Audio Format
File extension	.wma	.opus
MIME	audio/x-ms-wma	audio/opus
Developed by	Microsoft	IETF codec working group
Type of format	Audio file format	Audio file format
Introduction	Windows Media Audio (WMA) is an audio data compression technology developed by Microsoft. The name can be used to refer to its audio file format or its audio codecs. It is a proprietary technology that forms part of the Windows Media framework. Each WMA file features a single audio track in one of the four sub-formats: WMA, WMA Pro, WMA Lossless, or WMA Voice.	Opus is a lossy audio coding format developed by Xiph and standardized by the IETF, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low end ARM3 processors.