Convert AIFF → FLAC Online — Free
Convert AIFF to lossless FLAC.
Drag & drop or click to browse
Accepts .aiff files up to 100 MB
Free plan includes 3 conversions/day. Need more? Talk to us →
What is a .aiff file?
AIFF is a widely-used format in the Audio category. Convert AIFF to lossless FLAC. Files in this format are commonly used across various tools, pipelines, and workflows.
What is a .flac file?
FLAC is a popular format in the Audio ecosystem. Converting from AIFF to FLAC gives you access to its unique features, broader tooling support, and improved interoperability.
How to convert AIFF → FLAC online
Upload your file
Drag & drop your .AIFF file onto the upload zone, or click "Browse" to select it.
Validate & preview
The tool checks the file type and size before uploading. Invalid files are rejected immediately with a clear error.
Convert on the server
Click "Convert" to upload and process your file. Server-side conversion typically takes ~60 seconds.
Download your result
When done, click "Download .FLAC" to save your converted file. Files are securely deleted after 1 hour.
Frequently asked questions
Is this AIFF to FLAC converter free?
Yes. The AIFF → FLAC tool is free for up to 3 conversions per day. Pro (30/day) and Business (unlimited) plans unlock higher limits.
Is my file secure on the server?
Your file is uploaded over an encrypted HTTPS connection to a secure server worker. The converted file is stored temporarily and automatically deleted after 1 hour. We never share or store your files longer than necessary.
What is the maximum file size for AIFF?
You can convert files up to 100 MB. If your file is larger, consider compressing it first or upgrading to a Business plan for increased limits.
What is the difference between AIFF and FLAC?
AIFF and FLAC are both formats in the Audio category, each with different use cases, tooling support, and feature sets. Convert AIFF to lossless FLAC.
Can I convert multiple files at once?
Batch conversion is available on Pro and Business plans. Free users convert one file at a time.