Convert to OPUS | Fast & Free & Secure
Convert to OPUS online in seconds. No signup. Secure processing; files auto-delete in ~2h. Works on mobile & desktop.
Smart Auto-Detection – ConvertSea
No need to select your file type — we've already detected it.
Just upload your file and choose the format you want to convert it to. Our system automatically recognizes the input format, so you can focus on getting the output you need.
What is Opus?
Opus is a modern, royalty-free audio codec standardized by the IETF (RFC 6716) that excels at both speech and full-band music. It blends Skype’s SILK and Xiph’s CELT technologies to deliver transparent quality from very low bitrates (≈6 kbps) up to 510 kbps, with ultra-low latency using 2.5–60 ms frames. Opus supports variable bitrate, constant bitrate, and constrained VBR; features include packet-loss concealment, in-band forward error correction, and adaptive complexity for real-time networks. Files typically use the .opus extension in an Ogg container, and streams appear in WebM/Matroska. Native support in browsers and WebRTC makes Opus the default for voice chat, calls, gaming, and live streaming; many players and OSes also decode it. Compared with MP3/AAC at the same size, Opus usually sounds cleaner, especially for speech.
Upload Your File
Upload your file (drag & drop or click). Input type is auto-detected—no need to choose it.
Pick Format & Options
Pick the output format and (if available) adjust options like OCR, quality, bitrate, or resolution.
Convert & Download
Convert & download your file. Rate us.
Convert Your Files Instantly – Fast, Secure & Free
Welcome to ConvertSea, the ultimate online tool to convert your files with speed, accuracy, and zero hassle. Whether you're changing image formats, converting videos, editing documents, or extracting audio, our platform delivers instant, high-quality results across hundreds of file types.
No downloads, no registration, and no watermarks — just upload your file, choose the format you need, and download your converted file in seconds.
From PDF to Word, MP3 to WAV, JPG to PNG, or MP4 to MOV, ConvertSea ensures that your content stays clean, secure, and exactly how you want it.