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  1. 1. Source code
  2. 2. LyX installers (binary versions)
    1. 2.1 Windows binaries (Windows 7 and later)
    2. 2.2 Mac OS X binaries
    3. 2.3 Linux binaries
    4. 2.4 Chrome OS
    5. 2.5 OS/2 binaries
    6. 2.6 Haiku binaries
  3. 3. Additional Software
  4. 4. Version numbers
  5. 5. Previous versions
  6. 6. Mirrors
  7. 7. Checksums & signing
  8. 8. Development versions

1. Source code

The source code of the current LyX release (version 2.4.2) can be found here in tar.gz format, with the signature file here. The package can also be downloaded in tar.xz format, with the signature here.

If you don't know what source code is, see thearticle in Wikipedia. Information on how to verify the downloaded packages using the signature can be found here.

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 (Windows 7 and later)

NOTE: Before you install LyX on Windows, you need to install a TeX distribution. For more information on how to do this, please see this page on the LyX wiki.

Windows Installer (64 bit): LyX-242-Installer-1-x64.exe (~57 MB) (GPG signature)

Binaries for Cygwin:lyx-2.4.2.1-cygwin.tar.gz (~58MB) (GPG signature)

In case one of the links above does not work, try this mirror. If the download is too slow try some other mirror closer to you.

2.2 Mac OS X binaries

LyX for Mac OS X is available here: LyX-2.4.2.1+qt5-x86_64-arm64-cocoa.dmg, and the GPG signature is here.

Before you install LyX you need to install a TeX system such as MacTeX.

Also, recent releases of OSX (such as Ventura) no longer include a Python interpreter, which LyX needs to work. See this page for more information about how to install one.

Since Mac OS X Mountain Lion (and any newer), Mac Gatekeeper prevents from straightforward installation. You'll get the error message similar to:"LyX" can't be opened because it is from an unidentified developer. See the explanation here for a work around.

In case the links above do not work, try this mirror. If the download is too slow try some other mirror closer to you.

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

Homebrew. A different option how to get LyX on Mac OS X is to use Homebrew package manager for installation, see the current packaged version (it internally uses our offical .dmg binary).

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.

The versions of LyX on a variety of Linux distributions (as shipped with the vanilla distribution) can be seen on the snippet below. We usually choose testing/unstable repositories. For more detailed listing go here.

2.4 Chrome OS

It is possible to run LyX in Chrome OS via its virtual machine running Debian Linux. See detailed page in our wiki.

2.5 OS/2 binaries

LyX has unofficial ports to OS/2, binaries are here (LyX 2.0.7). Reportedly, 2.3.7 can be compiled in OS/2 as well.

2.6 Haiku binaries

LyX has unofficial ports to Haiku, packages (2.1.x,2.0.0,2.2.3,2.3.6) can be found in Haiku package repositories.

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 our default server (located in France) is slow or unavailable. Both ftp://ftp.lyx.org and https://ftp.lip6.fr/ point to the same primary server, but unless you actively check the signatures of downloaded files, you better use https protocol.

Note that we don't have any direct control over the content in the mirrors, so you are well advised to check signatures of the downloaded files to make sure they are identical to those on the primary site.

7. Checksums & signing

We provide gpg-signed tarballs and binaries. That allows you to check integrity of downloaded package and provides guaranty that no one tampered with the binary on the ftp server or on the way to your computer. Our GPG key ID is 0xDE7A44FAC7FB382D (LyX Release Manager). The signatures are found next to the tarballs and binaries.

Attention: Please be careful to use this full fingerprint, spoofed version of shortened fingerprint is already in the wild and it is easy to make new fake ones!

to check the signature (or any other 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.