Chilkat Library for Ruby
for Windows, Linux, and MacOS

MacOS Downloads

If using Ruby 3.4, install directly from RubyGems.org:

gem install chilkat

Alternative Manual Install Instructions

v11.4.0 • 30-Mar-2026 • sha256: bf6bd06edc0d388261628f6e1fd61b196734ac1c29a86c88f40f0229ae083cb3 MacOS x86_64 Ruby 3.4.*

v11.4.0 • 30-Mar-2026 • sha256: ecf9ca7c1e0ed479ea11b36ea1f6dd28641fccfb59757cfbe93bc6ece6b7ddbc MacOS arm64 Ruby 3.4.*

v11.4.0 • 30-Mar-2026 • sha256: b82bb6d32c9c0282e10a975ae01ed34438d858e4bbde38cff7ada28778ad6d02 MacOS x86_64 Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: e3e4740cb32277261b12848fcbef61c1130d510be78929e701e9f778d5f641a5 MacOS arm64 Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: c1c672399d8254e289413286e7160afa88dff1cd199c82100d02ba9cfc34ad0f MacOS x86_64 Ruby 3.2.*

v11.4.0 • 30-Mar-2026 • sha256: 16ed7ecea23b83ce66ed51e695e93a320be33295587d25143109d11cbd600c88 MacOS arm64 Ruby 3.2.*

v11.4.0 • 30-Mar-2026 • sha256: 1adf067bd6d7badea8e72b27525825672f96100478a43ceab0c31ed6036f84fb MacOS x86_64 Ruby 3.0.*

v11.4.0 • 30-Mar-2026 • sha256: f090b612f9f904e5658f912be267bc5583b0a105c8e85ef0b8e77938d098760c MacOS arm64 Ruby 3.0.*

v11.4.0 • 30-Mar-2026 • sha256: 454f798c16ed9cc45aa53aa8644fd626f3dcfb76bc7d4a5f213a8abfaff3f36c MacOS x86_64 Ruby 2.7.*

v11.4.0 • 30-Mar-2026 • sha256: 439f8e48f25423878c5823b19d7196155c03ee204ab0433ad6a24dd990bea1dd MacOS x86_64 Ruby 2.6.*

v11.4.0 • 30-Mar-2026 • sha256: 39ed1ccc1e61a8289d838aa45efc1486ae55d8d9f261e35cf29e7006f7bc889a MacOS x86_64 Ruby 2.5.*

Linux Downloads

If using Ruby 3.4, install directly from RubyGems.org:

gem install chilkat

Alternative Manual Install Instructions

v11.4.0 • 30-Mar-2026 • sha256: f26c2d146d6c4158bb8bdb8195e2e4dbfb44ea874150f2a711bdbd47abf570fd 64-bit Linux Ruby 3.4.*

v11.4.0 • 30-Mar-2026 • sha256: 616edca7206139322bc1b4c39c2c24b3d718706479c7bd8a15c19770d9362610 arm64 Linux Ruby 3.4.*

v11.4.0 • 30-Mar-2026 • sha256: 6e5550f0ebe69c5b2e8881669e9d2959e9f484c60fcc00c7ae83f220f2f18fe9 armv7l Linux Ruby 3.4.*

v11.4.0 • 30-Mar-2026 • sha256: a095de1786fa3f1a72539c37d25f024958f692911ae63c2a4809a80235c27880 64-bit Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 0d72ed8856be774d1f46642290c0c0e6600a97deef791ef9c146f70b2bcab846 32-bit Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: c58fd28cb310b17b28d628cfe03ed04c02494ce84307575a3fb41a12e22483de arm64 Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 05a08e47af6652f052e47b4c874eb8d89420487e2ed27fb35922ef7ff2be9f28 armv7l Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 7704ae0df6631d5334e144e06a531f966bc61a81e3d631cab7b4cb3114f34050 64-bit Linux Ruby 3.2.*

v11.4.0 • 30-Mar-2026 • sha256: 2e2519ed14bba1e6f10e9cc13a4d88d725d4c91ba91d01d1cfcf9b75dd5b62e7 64-bit Linux Ruby 3.0.*

v11.4.0 • 30-Mar-2026 • sha256: 4cf86ed2432891fc46a25cc476240134f543581267dd48e6a71d7c5c999852ae 32-bit Linux Ruby 3.0.*

v11.4.0 • 30-Mar-2026 • sha256: 92c7713ebe455d9202f91c5b8855aa0f938302f7c6326578e1672196bd1b5991 armv7l Linux Ruby 3.0.*

v11.4.0 • 30-Mar-2026 • sha256: 561e6a04ced06b35fca0a69f1d749dc46b22c4d913e612ac0aa60d20702a1828 64-bit Linux Ruby 2.7.*

v11.4.0 • 30-Mar-2026 • sha256: 1a9929a16ebb6dacc4ac205ea686da3c080c549485b3d255cf9fa7e99474d307 32-bit Linux Ruby 2.7.*

v11.4.0 • 30-Mar-2026 • sha256: e734b225123c9e06c8ac1d359d8b1e60b10cecdf3f17f71ff2bae444a53b184c 64-bit Linux Ruby 2.6.*

v11.4.0 • 30-Mar-2026 • sha256: a54023d7bddd3a9c623b2b4cab06eba12d616058dbd4dde0b7c81f4be316359a 32-bit Linux Ruby 2.6.*

v11.4.0 • 30-Mar-2026 • sha256: 65c52de152a2f71722a4ab99795f297298d24d35b848e460fb2733768189ed05 64-bit Linux Ruby 2.5.*

v11.4.0 • 30-Mar-2026 • sha256: 622b0b8992b730e83baca99026c5b568521671cce9b571abae8ac58a5f6a7dd6 32-bit Linux Ruby 2.5.*

Alpine Linux Downloads

If using Ruby 3.3, install directly from RubyGems.org:

gem install chilkat

Alternative Manual Install Instructions

v11.4.0 • 30-Mar-2026 • sha256: 815bdcdf7203ec74f51cc2970285c871fb8d7287f7552836b2f0b7d33f1fb209 64-bit Alpine Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 048347d5f5c9a61fa4fff3144254c9d8342b4f6c364bd0c9d552c9c1ec2beb30 32-bit Alpine Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 7f17c23056fd7a397e3095096964b2ccfaefd22021a7fb70dbf87c6cda2c5d65 arm64 Alpine Linux Ruby 3.3.*

v11.4.0 • 30-Mar-2026 • sha256: 2e2d0717aa7917f581da46b386254a51aa386729e402502531a6c12e9ab04ec0 armv7l Alpine Linux Ruby 3.3.*

Windows Downloads

If using Ruby 3.4 install directly from RubyGems.org:

gem install chilkat

Alternative Manual Install Instructions

v11.4.0 • 03-Apr-2026 • sha256: baf9fa9850750f534c324e0b66d11b55cd0e58efbe86d82ac3f117f6732c4d5b 64-bit Windows Ruby 3.4.*

v11.4.0 • 03-Apr-2026 • sha256: 6642f894bd34e3d63f607a5d184ff6221086805e6deff371ec5f7d04ea8b9293 64-bit Windows Ruby 3.3.*

v11.4.0 • 03-Apr-2026 • sha256: 674040adbfb8e7a8e32385cf64bc764510e7a5c672733e73422e39bbf1c1d864 64-bit Windows Ruby 3.2.*

Manual Install Instructions

These instructions apply only if the Chilkat library is downloaded and installed manually (not from RubyGems.org).

1. Download and extract to any directory. For example:

   tar xvfz chilkat-linux-x86_64-ruby-3.2.gem.tar.gz

2. Install using RubyGems. For example:

   gem install chilkat-x86_64-linux.gem

3. Use require 'chilkat' in Ruby scripts:

       require 'rubygems'
       require 'chilkat'
       
       # It should now be possible to instantiate and use Chilkat objects:
       mailman = Chilkat::CkMailMan.new()
       print mailman.version() + "\n"
   

Ruby Examples

Chilkat Ruby example programs.

Reference Documentation

Chilkat Ruby API Reference Documentation

Release Notes

The latest release notes are located here on the Chilkat blog.