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Bulk AAC to AVIF Converter Online — Free HD Quality

Drag and drop your multiple AAC files into this free online AAC to AVIF converter (.aac to .avif), and click the Convert button to bulk convert them to AVIF format in HD quality. Use the quality slider to fine-tune your AVIF output, then download your converted files one by one or as a single ZIP — your original AAC files are removed from our servers right after.

To:
85%

Drop images here or click to browse

PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more

Max 100MB per file

AAC vs AVIF — File Format Comparison

Feature AAC AVIF
File Extension .aac .avif
MIME Type audio/aac image/avif
Compression Type Lossy Lossy & Lossless
Metadata Support Yes Yes

What Is AAC Format?

Advanced Audio Coding — the successor to MP3 adopted by Apple, YouTube, and mobile platforms; delivers better quality than MP3 at the same bitrate, especially below 128 kbps.

  • Compression: Lossy
  • Tags & Metadata: Supported

What Is AVIF Format?

AV1 Image File Format with superior compression for modern browsers.

  • Compression: Lossy & Lossless
  • Tags & Metadata: Supported

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