Historically, gitk was the first repository browser. It's written in tcl/tk and started off in a separate repository but was later merged into the main git repository.

-n <number>, --max-count=<number>

Limits the number of commits to show.

--since=<date>

Show commits more recent than a specific date.

--until=<date>

Show commits older than a specific date.

--all

Show all branches.

<revs>

Limit the revisions to show. This can be either a single revision meaning show from the given revision and back, or it can be a range in the form "<from>..<to>" to show all revisions between <from> and back to <to>. Note, more advanced revision selection can be applied.

<path>

Limit commits to the ones touching files in the given paths. Note, to avoid ambiguity wrt. revision names use "--" to separate the paths from any preceeding options.

gitk v2.6.12.. include/scsi drivers/scsi

Show as the changes since version v2.6.12 that changed any file in the include/scsi or drivers/scsi subdirectories

gitk --since="2 weeks ago" -- gitk

Show the changes during the last two weeks to the file gitk. The "--" is necessary to avoid confusion with the branch named gitk

gitk --max-count=100 --all --- Makefile

Show at most 100 changes made to the file Makefile. Instead of only looking for changes in the current branch look in all branches.

qgit(1)

A repository browser written in C++ using Qt.

gitview(1)

A repository browser written in Python using Gtk. It's based on bzrk(1) and distributed in the contrib area of the git repository.

tig(1)

A minimal repository browser and git tool output highlighter written in C using Ncurses.