Modules for Backdrop CMS

View Mode Selector creates a new field type called View mode selector which
will override the view mode of an entity.

This module provides a simple, generic form/widget to input tabular data. The
form allows the user to select the number or rows/columns in the table, then
enter data via textfields.

Deletes user sessions which have been idle longer than a configured time.

On busy sites, the sessions table can grow to be very large, and that can cause slow accesses to it, as well as slow writes due to locking, leading to performance bottlenecks.

By trimming the table regularly, the above bottlenecks are avoided.

Limit the number of simultaneous sessions users may have. Limits can be applied by role and per account.

Force users to log out of any extra sessions after they exceed the administrator-defined maximum.

Converts a HTML page to PDF using mPDF PHP Library.
It allows you to generate the following pdf documents of any node:

www.example.com/node/nid/pdf

where nid is the node id of content to render.

Control the contents of your robots.txt file through Backdrop configuration.

Use this module when you are running multiple Backdrop sites from a single code base (multisite) and you need a different robots.txt file for each one. This module generates the robots.txt file dynamically and gives you the chance to edit it, on a per-site basis.

Creates a virtual sitemap.txt file for indexing by search engines.

This module adds the select2 widget to all select elements in a webform.

Simple Mail System provides a means for reviewing and updating
the mail system configuration variables held in the system
configuration file system.mail.json. This file holds
key/value pairs, the key being a module's mail class and the
value is the identity of the mail system to be used for
sending mail from that module.

Enforce restrictions on user passwords by defining a password policy that encourages the use of pass phrases.

The password constraints are pre-defined and must be met before a user password change will be accepted. Each constraint has a parameter allowing for the minimum number of valid conditions which must be met before the constraint is satisfied.

Add an administration interface for hidden variables that limit login attempts and contact form submissions in Backdrop.

Prevent user enumeration by blocking the display of all login error messages. A user attempting to login will not be aware if the account exists, an invalid user name or password has been submitted, or if the account is blocked.

Some of the messages which are hidden include: