Convert WEBM to OPUS offline
Convert local WEBM files to OPUS files offline by JavaScript in your web browser without any software downloads or file uploads!
OUTPUT FILES:
| # | File Name | File Size | Actions |
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How to convert WEBM to OPUS offline
Choose local WEBM files, choose "OPUS" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. Each file 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 | WEBM | OPUS |
| Full name | HTML5 Video | Opus Audio Format |
| File extension | .webm | .opus |
| MIME | video/webm, audio/webm | audio/opus |
| Developed by | IETF codec working group | |
| Type of format | Video file format | Audio file format |
| Introduction | WebM is a video file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video tag. It has a sister project WebP for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license. | 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. |
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