Let Users Edit Their Comments With Comment Edit Core
Just install the plugin. No configuration is necessary. It just works. Users can edit their comments for five minutes by default.

What can Comment Edit Core do for you?
The plugin is theme friendly
The plugin works with most themes out of the box. Three variations are also included with the plugin for light and dark themes. Friendly markup allows the plugin to be styled just the way you want.
Users are given 5 minutes to edit
The famous 5-minute timer allows users to easily correct spelling mistakes. You can increase or decrease the timer in the admin options.
Built to be extended by developers
The plugin can be extended via its extensive filter and action system by developers. It’s professionally extended by Comment Edit Pro.
Mailchimp is built-in
Get newsletter subscribers through the built-in Mailchimp integration.
Here’s what people have to say about Comment Edit Pro
These reviews were pulled from WordPress.org.

This plugin is working just like that. No confusing settings and options.
Perfect! Kudos to the creator.

Great plugin! Works right away it just needs some CSS styling.

I loved the author’s “Ajax Edit Comments” but it stopped working. This plugin’s extremely simple – no settings – and is up-to-date.
It counts down the 5 minutes available for editing. Users can edit, delete or cancel. Fine.

Install it, and it works as advertised. No fuss.
Get Comment Edit Core for free.
Comment Edit Core is a totally free plugin
Native comment support and theme friendly.
Five minute countdown for new comments.
Let your own users fix their typos, saving you lots of time.
