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AC3 is a file format for audio developed by Dolby Laboratories, commonly known as Dolby Digital. It’s widely used in DVDs, Blu-rays, and digital TV broadcasts to deliver surround sound. AC3 supports up to six channels and provides high-quality audio with efficient compression.
AAC stands for Advanced Audio Coding and is a lossy audio format known for its high sound quality at lower bitrates. It’s commonly used by streaming platforms and devices like iTunes, YouTube, and iPhones. Compared to MP3, AAC offers better audio performance at similar file sizes.
Convert your .ac3 files to .aac right in your browser — no downloads, no installs. Everything happens securely in the cloud.
We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.
Turn your AC3 files into AAC in just a couple of clicks. No registration, no limits — and it’s 100% free.