Installing Postman with Canonical’s Snap does not typically work well for me, so I prefer installing it natively. Here are the instructions for doing this on Ubuntu 20.04.

Installation

First, download the latest release:

wget https://dl.pstmn.io/download/latest/linux64 -O postman.tar.gz

Extract the underlying archive to /opt:

sudo tar -xzvf postman.tar.gz -C /opt

Create a symbolic link (shortcut) from the extracted Postman binary to /usr/bin/Postman so that it gets added to your $PATH and you can easily run it by typing the command postman:

sudo ln -s /opt/Postman/Postman /usr/bin/postman

Add a desktop shortcut with Postman icon

Last but not least, to create an application entry so that Postman shows up in your list of applications, create a postman.desktop file using this command:

cat > ~/.local/share/applications/postman.desktop << EOF
[Desktop Entry]
Categories=Development;
Encoding=UTF-8
Exec=postman
Icon=/opt/Postman/app/resources/app/assets/icon.png
Name=Postman
Terminal=false
Type=Application
EOF

Learning note: The above command uses the here document syntax to push the contents between the first EOF and second EOF to the file /home/$USER/.local/share/applications/postman.desktop.

Here’s how it will look:

Postman in Activities search

Don’t forget to clean up the downloaded postman.tar.gz file:

rm postman.tar.gz

Done!

That’s it! Check your Ubuntu Activities menu (top left corner) to verify that Postman shows up. The first time I opened the Activities menu, it did not show the entry, so I opened it one more time and it showed up the second time. I’ll assume it just hadn’t built an index of all available applications on the first try.