Total number of commits on git/GitHub in a specific timeframe?

How can I know the total number of commits done on a project through the GitHub web interface? How can I get the total number of commits in a specific time frame?

What I can get now is the number of commits done by each developer, not the total one.

Example: https://github.com/BVLC/caffe

First note:
Since the OP posted his question, the github page has been updated with a graph showing the daily total number of commits, and a way to download this data in CSV format.

Here are a few other local options to have stats over time, rather than just the count over 1 single time interval:

Combine git log --pretty=... with sort and count to group commits

• by day:

# will print the "committer date" for each commit, formatted Y-M-D:
git log --pretty="%cs" --since=...
# count by day:
git log --pretty="%cs" --since=... | sort -r | uniq -c

      6 2024-11-08
     17 2024-11-01
      7 2024-10-30
      1 2024-10-28
    ...

• by month:

# will print the "committer date" for each commit, formatted Y-M (month only):
git log --pretty="%cd" --date="format:%Y-%m" --since=...
# count by month:
git log --pretty="%cd" --date="format:%Y-%m" --since=... | sort -r | uniq -c

     23 2024-11
    240 2024-10
    393 2024-09
    442 2024-08
    ...

• by week:

you can print the ISO week number and group by that, you will need a bit of extra script-fu to change the output back to readable dates:

git log --pretty="%cd" --date="format:%G-%V" --since=...
# count by week:
git log --pretty="%cd" --date="format:%G-%V" --since=... | sort -r | uniq -c

      6 2024-45   # week 45 of year 2024
     25 2024-44   # week 44 of year 2024
     53 2024-43   # ...
     43 2024-42
    ...

I will refer you to man date for the detailed explanations for --date=format:... options.

Also worth mentioning: there is git shortlog, and this command has a --group=... option

# a synthetic view by month
$ git shortlog --group="%cd" --date="%Y-%m" --since="2022-01-01"
2022-01 (294):
      Merge branch 'jc/unleak-log'
      Merge branch 'ns/tmp-objdir'
      Merge branch 'es/test-chain-lint'
      ...
2022-02 (284):
      subtree: force merge commit
      branch: move --set-upstream-to behavior to dwim_and_setup_tracking()
      branch: make create_branch() always create a branch
      ...
2022-03 (392):
      Merge branch 'ps/fetch-atomic' into ps/fetch-mirror-optim
      upload-pack: look up "want" lines via commit-graph
      fetch: avoid lookup of commits when not appending to FETCH_HEAD
      ...