LH Add ID Columns v1.03
LH Add ID Columns adds user and post ID's to the WordPress user, post, page, and custom post type listings.
Tags / user-id
user id
5 WordPress plugins tagged “user id”. Every result links to a crawlable PlugIndex profile.
At8 Show IDs v1.0.1
Shows an ID column — sortable by ID — in the admin list tables for posts, pages, media, taxonomies, users and custom post types.
IDPeek – Show Post, Page & User ID v1.0.3
Shows the ID next to every post, page, product, category, tag, and user in your WordPress admin. No settings, works instantly.
PRyC WP: User(s) ID v1.0.5
Add column with user(s) ID to WordPress users list
User ID v2.0.1
A powerful WordPress user manager to impersonate users, track activity logs, debug meta, and find user IDs. The ultimate user support toolkit.