MP3 to AAC Converter

Create an AAC copy for players or editors that require AAC. The conversion changes compatibility, not the quality of the source recording.
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How to convert MP3 to AAC

Choose an audio file

Choose an MP3 file or drag it onto the page.

Download your audio

Download the new AAC that was converted from your original MP3 audio.

MP3 input

MP3 is a widely supported compressed audio format.

AAC output

AAC is widely used for streaming and playback.

When to use it

Create an AAC version for playback or streaming.

Know the tradeoff

MP3 and AAC are both lossy formats. Converting between them cannot restore missing audio detail and may introduce another generation of compression.

Start with one file

Choose an MP3 audio file or drag it into the page to start.

Frequently Asked Questions

This page is built for MP3 files. If your source file is different, open the matching converter for that format.

MP3 and AAC are both lossy formats. Converting between them cannot restore missing audio detail and may introduce another generation of compression.

Long clips take more time and memory to process. Very large files can exceed the available browser memory, especially on phones. Try a shorter clip if conversion fails, and keep this tab open until the download is ready.
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Need a hand with your file?

Check the supported formats and settings for your task. If the result isn’t what you expected, our support page can help you find the next step.

Get help | Contact support


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} if (convertMatch) { return {primary: formatLabel(convertMatch[1]), secondary: formatLabel(convertMatch[2]), connector: 'arrow'}; } if (convertToMatch) { return {primary: 'Any', secondary: formatLabel(convertToMatch[1]), connector: 'arrow'}; } if (key.startsWith('compress-')) { return {primary: 'Compress', secondary: formatLabel(key.replace('compress-', '')), connector: 'dot'}; } if (key.includes('base64') && key.includes('decode')) { return {primary: 'Base64', secondary: 'Decode', connector: 'dot'}; } if (key.startsWith('base64-to-')) { return {primary: 'Base64', secondary: formatLabel(key.replace('base64-to-', '')), connector: 'arrow'}; } if (key.includes('-to-base64')) { const from = key.replace('convert-', '').replace('-to-base64', ''); return {primary: formatLabel(from), secondary: 'Base64', connector: 'arrow'}; } if (key.includes('base64')) { return {primary: 'Base64', secondary: 'Encode', connector: 'dot'}; } if (key.includes('ascii')) { return {primary: 'ASCII', secondary: 'Art', connector: 'dot'}; } if (key.includes('resizer')) { return {primary: 'Resize', secondary: 'Pixels', connector: 'dot'}; } if (key.includes('remove-pages')) { return {primary: 'Remove', secondary: 'Pages', connector: 'dot'}; } if (key.includes('crop') && key.includes('pdf')) { return {primary: 'Crop', secondary: 'PDF', connector: 'dot'}; } if (key.includes('pdf-editor')) { return {primary: 'Edit', secondary: 'PDF', connector: 'dot'}; } if (key.includes('unlock')) { return {primary: 'Unlock', secondary: 'PDF', connector: 'dot'}; } if (key.includes('protect')) { return {primary: 'Protect', secondary: 'PDF', connector: 'dot'}; } if (key.includes('pdf') && key.includes('metadata')) { return {primary: 'Clean', secondary: 'Metadata', connector: 'dot'}; } if (key.includes('metadata')) { return {primary: 'EXIF', secondary: 'Clean', connector: 'dot'}; } if (key.includes('background')) { return {primary: 'Remove', secondary: 'Background', connector: 'dot'}; } if (key.includes('crop')) { return {primary: 'Crop', secondary: 'Image', connector: 'dot'}; } if (key.includes('watermark')) { return {primary: 'Watermark', secondary: 'Image', connector: 'dot'}; } if (key.includes('upscale')) { return {primary: 'Upscale', secondary: 'Image', connector: 'dot'}; } if (key.includes('merge')) { return {primary: 'Merge', secondary: 'PDF', connector: 'dot'}; } if (key.includes('split')) { return {primary: 'Split', secondary: 'PDF', connector: 'dot'}; } if (key.includes('ocr')) { return {primary: 'OCR', secondary: 'PDF', connector: 'dot'}; } if (key.includes('sign')) { return {primary: 'Sign', secondary: 'PDF', connector: 'dot'}; } if (key.includes('trim')) { return {primary: 'Trim', secondary: 'Video', connector: 'dot'}; } return {primary: 'Tool', secondary: '', connector: 'dot'}; } function getIconClass(key, categoryName) { const toFormat = key.split('-to-')[1]; if (key === 'check-my-file') return 'bi-file-earmark-check'; if (key === 'prepare-for-ai') return 'bi-ui-checks-grid'; if (key.includes('ascii')) return 'bi-textarea-t'; if (key.includes('resizer')) return 'bi-aspect-ratio'; if (key.includes('metadata')) return 'bi-shield-slash'; if (key.includes('compress')) return 'bi-file-earmark-zip'; if (key.includes('base64')) return 'bi-journal-code'; if (key.includes('background')) return 'bi-scissors'; if (key.includes('crop')) return 'bi-crop'; if (key.includes('watermark')) return 'bi-type'; if (key.includes('remove-pages')) return 'bi-trash'; if (key.includes('unlock')) return 'bi-unlock'; if (key.includes('protect')) return 'bi-lock'; if (key.includes('editor')) return 'bi-pencil-square'; if (key.includes('excel')) return 'bi-file-earmark-spreadsheet'; if (key.includes('upscale')) return 'bi-arrows-angle-expand'; if (key.includes('merge')) return 'bi-files'; if (key.includes('split')) return 'bi-scissors'; if (key.includes('ocr')) return 'bi-file-earmark-text'; if (key.includes('sign')) return 'bi-pen'; if (key.includes('trim')) return 'bi-scissors'; if (toFormat) { switch (toFormat) { case 'jpg': case 'jpeg': return 'bi-filetype-jpg'; case 'png': return 'bi-filetype-png'; case 'gif': return 'bi-filetype-gif'; case 'svg': return 'bi-filetype-svg'; case 'pdf': return 'bi-filetype-pdf'; case 'word': case 'docx': return 'bi-file-earmark-word'; case 'xls': case 'xlsx': case 'excel': return 'bi-file-earmark-spreadsheet'; case 'heic': return 'bi-filetype-heic'; case 'webp': return 'bi-filetype-webp'; case 'bmp': return 'bi-filetype-bmp'; case 'ico': return 'bi-file-image'; case 'mp4': return 'bi-filetype-mp4'; case 'mov': return 'bi-filetype-mov'; case 'mp3': return 'bi-filetype-mp3'; case 'wav': return 'bi-filetype-wav'; case 'avi': return 'bi-filetype-avi'; default: return 'bi-file-earmark-image'; } } if (categoryName === 'video') return 'bi-film'; if (categoryName === 'audio') return 'bi-music-note-beamed'; if (categoryName === 'image') return 'bi-file-earmark-image'; return 'bi-gear'; } const formatMeta = getFormatMeta(lowerKey); const connectorIcon = formatMeta.connector === 'arrow' ? 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