Checkout Progress Bar
Checkout Progress Bar you can use it with process with payment it free also. This plugin can responsive.
Buttons With Built-in Progress Meters
These are going to be excellent for displaying progress whereas submitting forms or loading content via Ajax. they’re going to additionally use CSS3 designs and transitions to create them simple to customise.
Free progress button styles
A set of flat and 3D progress button designs wherever the button itself is a progress indicator. 3D designs area unit used for showing the progress indication on one facet of the button whereas rotating the button in perspective.
ProgressJs – Themeable progress bar library
NProgress – Slim Progress bar
A nanoscopic progress bar. that includes realistic trickle animations to persuade your users that one thing is happening! impressed by Google, YouTube, and Medium.