Download FitNesse here

Official release

release 20190224

FileSize# of Downloads
fitnesse-standalone.jar4687210 bytes1195

Note: As of release 20121220, FitNesse comes in 2 flavours:

You can also find FitNesse in the Maven Central Repository


The source Code can be found on GitHub:

What's next

It really takes very little time and effort to get FitNesse running on your machine.

  1. Click on the most recent fitnesse-standalone.jar file.
    • If this is a brand new installation, just put it in some convenient empty directory.
    • If this is an update, then copy it on top of the old fitnesse(-standalone).jar in your current installation.
  2. Type java -jar fitnesse-standalone.jar
    • It will ask you to be patient as it installs or updates.
    • Your shell should respond with something like this:
          FitNesse (v20130228) Started...
           	port:              8001
           	root page: at ./FitNesseRoot
           	logger:            none
           	authenticator:     fitnesse.authentication.PromiscuousAuthenticator
           	page factory:      fitnesse.responders.PageFactory
           	page theme:        bootstrap
           	page version expiration set to 14 days.
  3. Start up a browser and go to http://localhost
  4. The main FitNesse screen should come up. That's it. You're ready to start using FitNesse.

It didn't work!

Most likely you have another web server running. Web servers default to port 80, so if another one is running on your machine you'll have to specify another port via a CommandLineOption[?]. Try this command: java -jar fitnesse-standalone.jar -p 8080

Then point your browser to http://localhost:8080

Still no? Open me up.

What to Do If You Have the Wrong Java Runtime Environment

  • Release 20190119 and later require Java 8
  • Release 20160515 and later require Java 7
  • Release 20090818 and later require Java 6
  • Release 20060719 and later require Java 5

FitNesse requires version 1.8 or later of the Java Runtime Environment (JRE). If you see the messages:

C:\fitnesse>java -jar fitnesse-standalone.jar
Exception in thread "main" java.lang.NoClassDefFoundError:
        at fitnesse.FitNesse.parseCommandLine(Unknown Source)
        at fitnesse.FitNesse.main(Unknown Source)

Then you need to download and install version 8 or 9 of the JRE. Follow these steps:

  • Press a key to close the command window
  • Go to and download and install Java by following the instructions.
  • (if required) Change the PATH environment variable so that it points to the new JRE.
    • Go to the /bin folder that contains java.exe, and copy the pathname (for example, C:\Program Files\Java\j2re<version>)
    • Go to Settings>Control Panel>System>Advanced>Environment Variables>PATH>Edit
    • Paste in that same complete pathname
    • Save the PATH environment variable, and close the System control panel
    • Start FitNesse again as described above

What to do if Apache Velocity is not found

There are two builds of the FitNesse binary:

  • fitnesse.jar contains only the fitnesse code, no dependencies. This is the version you use if you're using a dependency management system like Maven or Apache Ivy.
  • fitnesse-standalone.jar is the big one-has-all jar file containing FitNesse and support libraries.

If you're seeing this:

C:\fitnesse>java -jar fitnesse.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/velocity/context/Context
        at fitnesse.FitNesseContext.(
        at fitnesse.FitNesseContext.(
        at fitnesseMain.FitNesseMain.loadContext(
        at fitnesseMain.FitNesseMain.launchFitNesse(

You probably want the latter.

Learning More

If you have not yet done so, check out the Two Minute Example. To learn more about what FitNesse acceptance testing is all about, see AcceptanceTests. If you are ready to start creating FitNesse pages and test tables, check out EditingFitNessePages[?] and CreatingTestTables[?].

Memory Issues.

When you use FitNesse extensively, some operations take more than the default memory allocated to the JVM. This can cause tests to fail for out of heap space reasons. You can fix this by adding the -Xmx100M JVM argument to the java command line when you start FitNesse. java -Xmx100M -jar fitnesse.jar.

Memory issues and the build.

If you build FitNesse from source, the ant script may fail for out of heap space reasons. You can fix this by setting the ANT_OPTS environment variable to -Xmx100M.

Old Releases

release 20190216

FileSize# of Downloads
fitnesse-standalone.jar4687107 bytes329

release 20190202

FileSize# of Downloads
fitnesse-standalone.jar4686420 bytes648

release 20190127

FileSize# of Downloads
fitnesse-standalone.jar4686319 bytes411

release 20190119

FileSize# of Downloads
fitnesse-standalone.jar4675654 bytes739

release 20190118

FileSize# of Downloads
fitnesse-standalone.jar5010162 bytes152

release 20180127

FileSize# of Downloads
fitnesse-standalone.jar4993767 bytes22286

release 20161106

FileSize# of Downloads
fitnesse-standalone.jar4959084 bytes191736

release 20160618

FileSize# of Downloads
fitnesse-standalone.jar4924145 bytes15418

release 20160515

FileSize# of Downloads
fitnesse-standalone.jar4914077 bytes11886

release 20151230

FileSize# of Downloads
fitnesse-standalone.jar4918563 bytes17492

release 20150814

FileSize# of Downloads
fitnesse-standalone.jar9216403 bytes22417

release 20150424

FileSize# of Downloads
fitnesse-standalone.jar9079776 bytes18775

release 20150226

FileSize# of Downloads
fitnesse-standalone.jar9045071 bytes12496

release 20150114

FileSize# of Downloads
fitnesse-standalone.jar8978396 bytes11776

release 20140901

FileSize# of Downloads
fitnesse-standalone.jar7656981 bytes18985

release 20140630

FileSize# of Downloads
fitnesse-standalone.jar6323081 bytes9464

release 20140623

FileSize# of Downloads
fitnesse-standalone.jar6325707 bytes3834

release 20140418

FileSize# of Downloads
fitnesse-standalone.jar6309648 bytes11036

release 20140201

FileSize# of Downloads
fitnesse-standalone.jar6871194 bytes345095

release 20131110

FileSize# of Downloads
fitnesse-standalone.jar7055875 bytes61041

release 20130530

FileSize# of Downloads
fitnesse-standalone.jar5377751 bytes21453

release 20111026

FileSize# of Downloads
fitnesse.jar4209712 bytes61882

release 20110104

FileSize# of Downloads
fitnesse.jar4174913 bytes44238

release 20101101

FileSize# of Downloads
fitnesse.jar4038994 bytes14832

release 20100303

FileSize# of Downloads
fitnesse.jar3966113 bytes36798

release 20100103

FileSize# of Downloads
fitnesse.jar3918055 bytes14991

release 20091121

FileSize# of Downloads
fitnesse.jar4822762 bytes9248

release 20090818

FileSize# of Downloads
fitnesse.jar4777069 bytes34357

release 20090709

FileSize# of Downloads
fitnesse.jar5326568 bytes12127

release 20090513

FileSize# of Downloads
fitnesse20090513.zip22333643 bytes23124

release 20090321

FileSize# of Downloads
fitnesse.jar1066873 bytes6005
fitnesse20090321.zip13715647 bytes22603

release 20090214

FileSize# of Downloads
fitnesse.jar1005205 bytes6041
fitnesse20090214.zip7695116 bytes36688
fitnesse_src20090214.zip5729014 bytes32586

release 20090112

FileSize# of Downloads
fitnesse.jar984868 bytes5920
fitnesse20090112.zip7558908 bytes7957
fitnesse_src20090112.zip5654090 bytes5224

release 20081201

FileSize# of Downloads
fitnesse.jar870421 bytes5982
fitnesse20081201.zip6210294 bytes9777
fitnesse_src20081201.zip5572459 bytes5175

release 20081115

FileSize# of Downloads
fitnesse.jar868938 bytes5614
fitnesse20081115.zip6188491 bytes7184
fitnesse_src20081115.zip5569678 bytes4256

release 20080812

FileSize# of Downloads
fitnesse.jar736137 bytes6726
fitnesse20080812.zip5856554 bytes11824
fitnesse_src20080812.zip5484115 bytes6153

release 20080702

FileSize# of Downloads
fitnesse.jar695739 bytes5892
fitnesse20080702.zip1969594 bytes7042
fitnesse_src20080702.zip3579035 bytes4672

release 20070619

FileSize# of Downloads
fitnesse.jar663683 bytes10263
fitnesse20070619.zip1874663 bytes31659
fitnesse_src20070619.zip3948325 bytes37408

release 20060719

FileSize# of Downloads
fitnesse.jar495037 bytes9458
fitnesse20060719.zip1517539 bytes89796
fitnesse_src20060719.zip3620673 bytes9428

release 20050731

FileSize# of Downloads
fitnesse.jar475255 bytes9783
fitnesse20050731.zip1269717 bytes22426
fitnesse_src20050731.zip3308056 bytes10638

release 20050405

FileSize# of Downloads
fitlibrary.jar123526 bytes8895
fitnesse.jar468725 bytes8548
fitnesse20050405.zip1162944 bytes8667
fitnesse_src20050405.zip1801536 bytes6293

release 20050301

FileSize# of Downloads
fitnesse20050301.zip1062799 bytes5824
fitnesse_src20050301.zip3362842 bytes5563