Modules for Backdrop CMS

Search Exclude NID hides single nodes, identified by their node IDs, from the
search results.

Hashes of uploaded files, which can be found on a variety of sites from
archive.org to wikileaks.org, allow files to be uniquely identified, allow
duplicate files to be detected, and allow copies to be verified against the
original source.

This module provides an advanced Entity Reference widget that uses a view for
selecting items. The view can be paginated and have exposed filters.

Save & Edit provides a very simple, yet welcome function to node editing pages.
It adds a button titled "Save & Edit" on selected node types which redirects
back to the edit form rather than returning to the node or admin page.

Allows users to select an image style while adding inline images using CKEditor.

This module provides a fuzzy matching search engine for entities using the
search_api module. Entities are indexed when the site's cron job is run. See
the index settings for options.

Security Kit (SecKit) provides various options to improve the security
of Backdrop web sites.

Sometimes when you use relationships in views you get a number of rows with the
same content in some of the fields. This results in a huge table (grid, list,
etc.) that affects the usability of your view.

Read Only Mode allows site administrators and developers to lock down or
freeze a production server so that maintenance or large deployments can occur
without taking the site offline.

The Object Log module allows developers to store objects, arrays and other
variables to a log table so that they may be inspected later. Multiple stored
variables may be displayed side-by-side in the Object Log under admin/reports.