On 2012 September 24 all GRB light curves were rebuilt using HEASOFT v6.12. More information.
This website contains a repository of Swift/XRT lightcurves for all GRBs which have been detected by this instrument. These lightcurves, which are official products of the Swift/XRT team, have been extensively tested against manually-created lightcurves. Users are advised that different binning of a lightcurve can affect its detailed appearance. For more information, see the online documentation.
You can choose a recently observed object from the box on the right, or use one of the three methods below to select a burst: