Modules for Backdrop CMS

Smooth parallax scrolling effect for background images using the
Jarallax plugin from nk-o.

Block Background Module will help to set a custom background color to the
blocks. The user can choose the color using a color picker field for each
block in the block configuration page.

Dashboard Plus extends the Backdrop CMS administrator dashboard with additional
blocks, self-management tools, and a site architecture report — all without
leaving the dashboard.

The PHPExcel module allows developers to export/import data to/from Excel files.

The idea behind this module is to have a single module for handling the export or
import of Excel files, instead of multiple modules handling specific cases.

The Unique Field module provides a way to require that specified fields
or characteristics of a node are unique. This includes the node's title,
author, language, taxonomy terms, and other fields.

The Menu Node Views module provides Views integration for nodes assigned to the menu system. It adds new, menu-related filter/sort criteria and fields to those available by views. (This module is in alpha development.)

xautoload is a comprehensive and yet highly efficient PHP class loading suite.

Most importantly, it provides Drupal-8-style PSR-4 (and the old D8 PSR-0-style in "lib") autoloading for Backdrop. But it is also a great tool for 3rd party autoloading.

A very simple mobile friendly navigation toolbar. The Navbar module displays a bar containing top-level administrative components across the top of the screen or on left side.

JSONPath Parser is a Feeds parser that allows parsing JSON files using the
JSONPath library. It is very similar to the Feeds XPath Parser module.