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eac3to vs deew: catalog facts
eac3to	deew
Free Freeware, free to download.	Free Free and open source under the MIT licence; the Dolby Encoding Engine is not included.
Windows	Windows, Command line
Actively updated with many releases in 2025 and 2026 Free to download with no account	Generates DEE XML job files automatically Converts inputs to RF64 for DEE
Windows only Distributed as RAR archives with no documentation on the download page	Requires the separate Dolby Encoding Engine Command-line only
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.