weconvertit

Audio

FLAC to AAC Converter

Free, private, and instant — your files never leave your device.

Loading converter…

Encoding FLAC to AAC gives the AAC encoder the best possible starting point — lossless audio with zero prior encoding artifacts. The result is a high-quality AAC file suitable for Apple devices, YouTube, and streaming, with file sizes 4–8× smaller than the FLAC.

When you’d want this conversion

  • Creating portable copies of a FLAC archive for Apple devices, iPhones, and iPads.
  • Delivering audio to platforms that prefer AAC (YouTube, Apple Podcasts).
  • Reducing archival FLAC file sizes for streaming or sharing without re-encoding from MP3.
  • Syncing lossless library content to a device with limited storage.

What to watch for

Keep the original FLAC for archival — AAC is lossy and that loss is permanent.
The output is a raw .aac bitstream. For iTunes or Apple Music, the same codec in an M4A container may be preferred. Most players accept both.
From.flac

FLAC

Free Lossless Audio Codec

  • Lossless
  • Size: medium (15–25 MB / song)
  • Best for: archival, audiophile listening, music libraries
To.aac

AAC

Advanced Audio Coding

  • Lossy compression
  • Size: small (3–8 MB / song)
  • Best for: mobile streaming, YouTube, Apple devices

More FLAC Conversions

FLAC to MP3 Converter FLAC to WAV Converter

Convert Other Formats to AAC

MP3 to AAC Converter WAV to AAC Converter

Related Tools

Audio Converter All Conversions

How to Use

  1. 1

    Drop your audio file onto the converter above, or click to browse.

  2. 2

    Select your target format from the format buttons.

  3. 3

    Click Convert — processing happens entirely in your browser.

  4. 4

    Preview the result with the built-in audio player, then download.

Frequently Asked Questions

Is FLAC to AAC better than MP3 to AAC?

Yes, significantly. Encoding from FLAC (lossless) gives AAC the full, undegraded audio. Encoding from MP3 means the encoder works with already-compressed audio. For best AAC quality, always start from lossless.

What bitrate is used?

This converter outputs 192 kbps AAC. This is the standard high-quality bitrate — transparent (indistinguishable from lossless) in most listening tests on most music content.

Should I use AAC or MP3 for my device?

AAC is preferred for Apple devices and most modern Android devices. MP3 is better for legacy hardware that predates AAC support (older car stereos, early MP3 players). When in doubt, AAC is the better modern choice.

Convert any audio format

Drop any audio file into the converter — MP3, WAV, M4A, AAC, OGG, FLAC, or Opus.

Audio Converter