1.  Source code

The source code of the current LyX release (version 2.1.2) can be found here (also in tar.xz format). If you don't know what source code is, see the article in Wikipedia. The tarballs are gpg-signed.

Please note that for OSX 10.10 (Yosemite), you should download the 2.1.2.1 source.

2.  LyX installers (binary versions)

Binary versions of LyX for installing in different operating systems can be found below or on the FTP site. The binaries are also gpg-signed.

2.1  Windows binaries (XP/Vista/7)

There are 2 Windows installer variants:

  • Bundle: LyX-2.1.2-Bundle-1.exe (~200 MB)
    Download this one if you are a new user. It installs a fully functional and complete LyX setup including a LaTeX distribution and a bibliography manager.
  • Installer: LyX-2.1.2-Installer-1.exe (~35 MB)
    Download this one if you already have an older version of LyX installed and you want to update it. This installer requires that LaTeX (MikTeX or TeXLive) already be installed.

A binary for CygWin can be downloaded here: lyx-2.1.2-cygwin.tar.gz.

In case the links above does not work, try this mirror.

These installers will setup a complete LyX environment. For more information about Windows binaries, see our wiki page.

2.2  Mac OS X binaries

LyX for Mac OS X is available here: LyX-2.1.2.1+qt4-x86_64-cocoa.dmg. (There is also a package for some older systems: LyX-2.1.2+qt4-i386-carbon.dmg.) Before you install LyX you need to install a TeX system such as MacTeX.

In case the links above do not work, try this mirror.

On Mac OS X Mountain Lion you'll get the error message: "LyX" can't be opened because it is from an unidentified developer. See the explanation here for a work around.

See the LyX/Mac wiki page for further installation tips.

2.3  Linux binaries

Major Linux distributions take care of LyX binaries themselves and you will find LyX in their repositories. For more details about your distribution look in our wiki.

For Ubuntu users, Liviu Andronic maintains a stable PPA (Personal Package Archive) and a daily PPA which contain up-to-date versions of LyX. See the LyX on Ubuntu wiki page for information and instructions.

The versions of LyX on a variety of Linux distributions (as shipped with the vanilla distribution) can be seen on the snippet below. Note, however, that most distributions provide newer versions than the listed ones via upgrade services.

2.4  OS/2 binaries

LyX has unofficial ports to OS/2, binaries are here (LyX 2.0.7).

2.5  Haiku binaries

LyX has unofficial ports to Haiku, binaries are here (LyX 2.0.0).

3.  Additional Software

If you're not using one of the installers or packages, you may need to install some additional software.

4.  Version numbers

There are certain rules how the LyX version numbers are assigned. Read the following page for detailed information.

5.  Previous versions

6.  Mirrors

Please use one of the ftp mirrors below in case ftp://ftp.lyx.org is overloaded or down.

7.  Checksums & signing

We provide gpg-signed tarballs and binaries. Our GPG key ID is C7FB382D (LyX Release Manager). The signatures are found next to the tarballs and binaries.

To verify a tarball with GnuPG, do this:

  gpg --recv-keys 0xDE7A44FAC7FB382D

to receive the key (only needed once), and

  gpg --verify lyx-2.1.2.tar.gz.sig

to check the signature (or any another signed file you want to verify). Watch out for the "Good signature..." string.

8.  Development versions

Please do not use these for any serious work! They are only provided for testing and development purposes.