Convert MP3 to AAC

MP3 → AAC. Source file ≤ 100 MB · Output ≤ 100 MB.

MP3 is lossy audio; a higher bitrate usually produces a larger file. Raw AAC may report an estimated duration; M4A provides a timed container.

MP3 → AAC: Example settings

60 s × 192 kbps ÷ 8 ≈ 1.44 MB • AAC

AAC: Output

Sizes are examples, not guarantees. Container overhead is extra; variable bitrate and image content change the result. Keep the original and compare the output.

JavaScript is required for file selection and processing.