LAME 4.0

All official versions
Official main branch · independently compiled Windows packages

The next main development branch

A Windows build of the 4.0 main branch, provided for comparison with the established 3.x releases and newer development work. It should be treated as a development-line package rather than a replacement for the long-standing 3.100 stable release.

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Development focus
Continuing upstream development beyond the 3.x release family.
Observed character
A newer branch package intended for testing, compatibility checks, and direct comparison with the official 3.x lines.
Branch significance
Representing the project’s next numbered main branch.
Archive context

These are independent MinGW Windows compilations of the named official LAME release. They remain separate from the site’s current development-build catalogue.

LAME 4.0 downloads

Choose x64 for modern 64-bit Windows. Use x86 only when a 32-bit target is required.

Windows x64 package

Portable MinGW command-line build with lame.exe, libmp3lame.dll, libiconv-2.dll, and build information.

Download ZIP
Package
lame-4.0-mingw-x64.zip
Size
1.3 MB
SHA-256
e24e413e75d7823414e3a0769a797cdc39e47dfbc689e0a94cf97353d825020d
VirusTotal
Status pending until the next site scan

Windows x86 package

Portable MinGW command-line build with lame.exe, libmp3lame.dll, libiconv-2.dll, and build information.

Download ZIP
Package
lame-4.0-mingw-x86.zip
Size
1.29 MB
SHA-256
58f91c45b4d64d9bc1da6899334b13d97c262172c30a3da12f25432c26d13d21
VirusTotal
Status pending until the next site scan

VirusTotal is an external verification aid, not a safety guarantee. Compare the SHA-256 shown here with the downloaded ZIP before relying on a report.

Related measurements and graphs

Open the complete study pages for methodology, caveats, and comparisons across releases.

VBR performance

Encoding time and output-size comparisons across 3.95.1 through current builds.

View VBR graphs

ABR performance

ABR speed and size behaviour across the official historical versions.

View ABR graphs

VBR frequency response

DeltaWave-derived upper-band and frequency-response comparisons.

View frequency graphs

Reference closeness

Residual and closeness measurements using 3.99.5 as the site reference.

View closeness graphs

Browse other versions

Keep the archive chronological without folding these packages into the current custom-build pages.

LAME 3.101 →