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Download Chimera

Daily Builds
Snapshot Releases
Unsupported Releases
Old Releases

Tip: Consider trying ChimeraX, the successor to Chimera.

Current Production Releases

See the release notes for a list of new features and other information.
For more recent changes, use the snapshot and daily builds; they are less tested but usually reliable.

64-bit Releases:

Platform	Installer, Size, and Checksum	Date	Notes
Microsoft Windows 64-bit	chimera-1.15-win64.exe Size: 152310162 bytes MD5: 6a68ab33f35a298059b9ef89f6372cfc	Dec 18, 2020	Instructions Documentation Runs on Windows 7 or later.
Mac OS X 64-bit	chimera-1.15-mac64.dmg Size: 191085873 bytes MD5: 2debb9ae125af17bd8905bfb1ae6063c	Dec 18, 2020	Instructions Documentation Runs on Mac OS X 10.12 or later.
Linux 64-bit	chimera-1.15-linux_x86_64.bin Size: 154069682 bytes MD5: 5c8f48ed5d474ed79df944b58c78eb39	Dec 18, 2020	Instructions Documentation Compiled on CentOS 5.11.

32-bit releases are no longer supported.

Daily Builds

New builds are made when the code changes.
They are untested but are usually reliable and include new bug fixes not in the production release.

64-bit Builds:

Platform	Installer, Size, and Checksum	Date	Notes
Microsoft Windows 64-bit	chimera-alpha-win64.exe Size: 152346506 bytes MD5: 3f76dc90cf4c03ff2cca55c5f06a144c	Jul 21, 2021	(See production version for installation instructions) Runs on Windows 7 or later. Release notes
Mac OS X 64-bit	chimera-alpha-mac64.dmg Size: 192222556 bytes MD5: c4950a3b7a642e7a62744c2e8d5108e3	Jul 21, 2021	(See production version for installation instructions) Runs on Mac OS X 10.12 or later. Release notes
Linux 64-bit	chimera-alpha-linux_x86_64.bin Size: 154081778 bytes MD5: 872720cc0177d74baa1942a1e21923ba	Jul 21, 2021	(See production version for installation instructions) Compiled on CentOS 5.11. Release notes
Headless Linux 64-bit	chimera-alpha-linux_x86_64_osmesa.bin Size: 148008130 bytes MD5: 8bcccf0600009914e065a56727521007	Jul 21, 2021	(See production version for installation instructions) For (web) servers. Compiled on CentOS 5.11. Release notes

32-bit builds are no longer supported.

Snapshot Releases

These are development snapshots, not tested as much as the production releases.

Currently there are no snapshot releases.

Unsupported Releases

These are releases for platforms that we might support in the future or used to support.

64-bit Releases:

Platform	Installer, Size, and Checksum	Date	Notes
HP Tru64 Unix	chimera-1.3-tru64.exe Size: 95937093 bytes MD5: 7a84b2a39371a077c51bc348db057f28	Dec 09, 2008	Instructions Documentation Runs on Tru64 5.1B.
Headless Linux 64-bit	chimera-1.15-linux_x86_64_osmesa.bin Size: 147996792 bytes MD5: 9e0d9cd66645c49c82aa68a508338621	Dec 18, 2020	Instructions Documentation For (web) servers. Compiled on CentOS 5.11.

32-bit Releases (for small memory computers):

Platform	Installer, Size, and Checksum	Date	Notes
Mac OS X	chimera-1.11.2-mac.dmg Size: 103774888 bytes MD5: fa2ccd9c17c456d71088e81129c862d6	Dec 02, 2016	Instructions Documentation Runs on Mac OS X 10.8 or later.
Mac OS X (X Windows)	chimera-1.11.2-mac_x11.dmg Size: 91230485 bytes MD5: a42b0463f5d51ff845cc459cd3de66c3	Dec 02, 2016	Instructions Documentation Runs on Mac OS X 10.8 or later.
Linux	chimera-1.11.2-linux.bin Size: 119742278 bytes MD5: 47dd12fbcbcfe01ea678599dd7001a6b	Dec 02, 2016	Instructions Documentation Compiled on Debian 4 (etch).
SGI IRIX	chimera-1.3-irix.exe Size: 91949632 bytes MD5: 503399e4bcddd58d736e686925feefeb	Dec 09, 2008	Instructions Documentation Runs on IRIX 6.5.10+ with current C++ runtime patches.
Headless Linux	chimera-1.11.2-linux_osmesa.bin Size: 113253259 bytes MD5: 4f8b829bf5838566ba7a3afefdccb02d	Dec 02, 2016	Instructions Documentation For (web) servers. Compiled on Debian 4 (etch).