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Convert OPUS to FLAC - Archive Your Audio in Lossless Quality

Convert OPUS audio files to FLAC format for lossless storage and editing compatibility.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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Why Convert OPUS to FLAC?

OPUS is excellent for streaming and storage efficiency, but FLAC offers something different: true lossless audio in a universally recognized format. If you need to archive your OPUS files or use them in audio editing software, FLAC is the better choice.

In our testing, FLAC files work seamlessly with every major DAW and audio editor, while OPUS support remains inconsistent. Converting gives you broader compatibility without any generation loss during the conversion process itself.

How to Convert OPUS to FLAC

  1. Upload your OPUS file - Drag and drop or click to select from your device
  2. Choose FLAC as output - Select FLAC from the format options
  3. Download your FLAC - Get your converted lossless file instantly

The entire process happens in your browser. No software installation required, and your files stay on your device.

Understanding the Format Difference

OPUS uses lossy compression designed for low bitrates and streaming. It sounds excellent at 128 kbps - often better than MP3 at the same bitrate. FLAC uses lossless compression, meaning the decoded audio is bit-perfect to the original source.

Converting OPUS to FLAC won't restore any audio data lost during the original OPUS encoding. However, it does preserve everything in your current OPUS file without further quality degradation. Think of it as putting your audio in a protective container.

  • OPUS - Lossy, efficient, 64-128 kbps typical, excellent for streaming
  • FLAC - Lossless, larger files, 800-1400 kbps typical, ideal for archiving

When to Convert OPUS to FLAC

Audio Production

Many DAWs like Pro Tools, Logic Pro, and older versions of Audacity don't support OPUS natively. Converting to FLAC ensures your audio imports correctly without plugins or workarounds.

Long-Term Archiving

FLAC has been the standard lossless format since 2001. Its longevity and universal support make it a safer choice for files you want to keep for years. OPUS, while technically superior for lossy compression, is newer and less established for archival purposes.

Hardware Compatibility

High-end audio players, CD burning software, and many car stereos recognize FLAC but not OPUS. If your playback device rejects OPUS files, OPUS to WAV or OPUS to FLAC conversion solves the problem.

What to Expect

Your FLAC file will be larger than the source OPUS - typically 4-8 times the size. A 5 MB OPUS file might become 25-40 MB as FLAC. This is normal and expected when moving from lossy to lossless encoding.

Audio quality remains exactly as it was in your OPUS file. No enhancement occurs, but no degradation happens either. The conversion is transparent.

For maximum quality archiving with smaller files, consider OPUS to MP3 if you need wider compatibility without the file size increase of FLAC.

Pro Tip

If you're converting OPUS files for use in a DAW, batch convert everything to FLAC before starting your project. This prevents format compatibility issues mid-session and ensures consistent audio handling across your timeline.

Common Mistake

Expecting quality improvement from the conversion. OPUS to FLAC preserves your audio perfectly but cannot restore frequencies or details lost during original OPUS encoding. Start with the highest quality source available.

Best For

Audio producers needing to import OPUS recordings into professional software, archivists wanting a universally compatible lossless format, and users whose playback devices don't support OPUS.

Not Recommended

If storage space is limited and you're happy with OPUS playback on your devices, converting to FLAC just increases file sizes without audible benefit. Keep OPUS for portable use.

Frequently Asked Questions

No. FLAC is lossless, but it can only preserve what's already in your OPUS file. Any audio data lost during original OPUS compression cannot be recovered. The conversion prevents further quality loss but doesn't enhance existing quality.

OPUS uses lossy compression achieving very small files (64-128 kbps). FLAC uses lossless compression, which preserves all audio data and results in much larger files (800-1400 kbps). A 5x-8x size increase is normal when converting from lossy to lossless.

Yes. FLAC is supported by virtually all professional audio software including Pro Tools, Logic Pro, Ableton, FL Studio, Audacity, and Reaper. This is often the main reason for converting from OPUS.

Yes. CD burning software universally supports FLAC. Convert your OPUS files to FLAC, then import them into your CD burning application. Note that audio CDs have limited space (80 minutes), so plan accordingly.

For archival storage, FLAC is better because it's lossless - perfect copies every time. For everyday listening with limited storage, OPUS offers better quality per megabyte. Many people keep FLAC archives and OPUS copies for portable devices.

Most conversions complete in seconds. A typical 4-minute song converts almost instantly in your browser. Larger files or batch conversions take proportionally longer but remain fast.

No. Conversion happens entirely in your browser using your device's processing power. Your audio files never leave your computer, ensuring complete privacy.

The FLAC file maintains the same sample rate as your source OPUS file. If your OPUS was encoded at 48 kHz, your FLAC will be 48 kHz. No upsampling or downsampling occurs during conversion.

Yes. Upload multiple OPUS files and convert them all to FLAC in a single batch. Each file converts independently, and you can download them all together when finished.

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