diff --git a/python/examples/pizza/dump.py b/python/examples/pizza/dump.py
index 5c7fab33ae..cdc73a8b38 100644
--- a/python/examples/pizza/dump.py
+++ b/python/examples/pizza/dump.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/python/examples/pizza/gl.py b/python/examples/pizza/gl.py
index d4b4f313c3..7c5633ac55 100644
--- a/python/examples/pizza/gl.py
+++ b/python/examples/pizza/gl.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/python/examples/pizza/gnu.py b/python/examples/pizza/gnu.py
index 6e0fc1ee0b..712b47d6ac 100644
--- a/python/examples/pizza/gnu.py
+++ b/python/examples/pizza/gnu.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/python/examples/pizza/pdbfile.py b/python/examples/pizza/pdbfile.py
index efdf32fab1..7ae3546faf 100644
--- a/python/examples/pizza/pdbfile.py
+++ b/python/examples/pizza/pdbfile.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/python/examples/pizza/vizinfo.py b/python/examples/pizza/vizinfo.py
index ebf490584e..a150a9c84f 100644
--- a/python/examples/pizza/vizinfo.py
+++ b/python/examples/pizza/vizinfo.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/python/examples/pizza/vmd.py b/python/examples/pizza/vmd.py
index 72da0f1a1d..00b8615092 100644
--- a/python/examples/pizza/vmd.py
+++ b/python/examples/pizza/vmd.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/README b/tools/python/README
index 7067d1b9e1..433b86b315 100644
--- a/tools/python/README
+++ b/tools/python/README
@@ -30,7 +30,7 @@ scripts expose, so if you want to do something beyond what these
 scripts perform, you should learn about Pizza.py.  See this WWW page
 for details and download info:
 
-www.sandia.gov/~sjplimp/pizza.html
+https://lammps.github.io/pizza
 
 The tools in the Pizza.py src directory are identical to those in the
 pizza sub-directory of lammps/tools/python.  The header section of
diff --git a/tools/python/pizza/cfg.py b/tools/python/pizza/cfg.py
index d39d8990ce..dc64ef50ff 100644
--- a/tools/python/pizza/cfg.py
+++ b/tools/python/pizza/cfg.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/pizza/dump.py b/tools/python/pizza/dump.py
index 015cd8f0e7..6224192093 100644
--- a/tools/python/pizza/dump.py
+++ b/tools/python/pizza/dump.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/pizza/gnu.py b/tools/python/pizza/gnu.py
index 41d19e0139..004c837f63 100644
--- a/tools/python/pizza/gnu.py
+++ b/tools/python/pizza/gnu.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/pizza/log.py b/tools/python/pizza/log.py
index d967b4a33a..92190ec929 100644
--- a/tools/python/pizza/log.py
+++ b/tools/python/pizza/log.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/pizza/pdbfile.py b/tools/python/pizza/pdbfile.py
index efdf32fab1..7ae3546faf 100644
--- a/tools/python/pizza/pdbfile.py
+++ b/tools/python/pizza/pdbfile.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/python/pizza/xyz.py b/tools/python/pizza/xyz.py
index 1b905cc046..0d96e15096 100644
--- a/tools/python/pizza/xyz.py
+++ b/tools/python/pizza/xyz.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract
diff --git a/tools/tinker/data.py b/tools/tinker/data.py
index b75536da93..5d6951422f 100644
--- a/tools/tinker/data.py
+++ b/tools/tinker/data.py
@@ -1,4 +1,4 @@
-# Pizza.py toolkit, www.cs.sandia.gov/~sjplimp/pizza.html
+# Pizza.py toolkit, https://lammps.github.io/pizza
 # Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
 #
 # Copyright (2005) Sandia Corporation.  Under the terms of Contract