1 free run a day

OGG to FLAC Converter

Convert OGG audio to FLAC (lossless FLAC) for archiving without quality loss. Batch, private, in-browser.

Free once a day, no account needed. One file up to 25 MB. Unlimited with Image & Media or All Tools.See plans
Your files never leave your device

How to convert OGG to FLAC

  1. 1

    Choose your OGG files

    Click the upload area or drag files onto it. Nothing is uploaded — files are opened locally.

  2. 2

    Start the conversion

    Press the convert button. Your browser converts the files in seconds.

  3. 3

    Download the result

    Save each file individually or everything at once as a ZIP.

Need FLAC for archiving without quality loss? Convert OGG files on your device — nothing is uploaded, and you can convert a whole album at once.

Read the full guide with screenshots

What is OGG?

OGG is an open audio container, usually holding Vorbis or Opus audio. It is used by games, Android, Discord and WhatsApp voice notes, but Apple devices and many players can’t open it.

What is FLAC?

FLAC (Free Lossless Audio Codec) compresses audio without losing any quality. It is popular with audiophiles and music archives, but many phones, car stereos and players don’t support it.

Is it private?

Yes. Unlike upload-based converters, ZapMorph processes files inside your browser tab, so the file stays on your device. It is never transmitted, stored or logged — close the tab and it’s gone.

Frequently asked questions

Is the ogg to flac converter free?

Yes, once a day. Convert one file up to 25 MB a day without an account. A free account gets one run a day on any Pro tool with files up to 50 MB; Pro and Lifetime plans are unlimited.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser, so your files never leave your device. We only count how many files you convert — never their names or contents.

What is the maximum file size?

Up to 25 MB per file without an account, 50 MB with a free account, and 1 GB on Pro. Very large files also depend on your device’s memory.

Can I convert multiple OGG files at once?

Yes. Select several OGG files at once — up to 5 on the free plan or 50 on Pro — and download all results in a single ZIP.

Does it work on Mac, Windows, iPhone and Android?

Yes. It works in any modern browser — Chrome, Edge, Firefox and Safari — on desktop and mobile, with nothing to install.

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