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A comment service that will delight your users and developers.

At 15.2 kB with no dependencies, it's the fastest live comment service around.

FastComments prioritizes speed and user experience above all else. It doesn't spy on you or your users and has the features you care about.

We've pre-created a demo account just for you! Insert the snippet below into your site to try commenting support, fast.


    
npm install --save fastcomments-react

    
npm install --save fastcomments-vue

    
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Script is for demo purposes only. To get a snippet for production, create an account.
Live Demo
Key Features
Live Conversations
Your community chats in real time on your website or application.
Scalable
Millions of pages or thousands of comments per page? It won't slow us down.
SSO, Webhooks, Oh My
Easy to use and well documented integrations with direct developer support.
Efficient Moderation
Moderate Quickly with Bulk Actions. Invite your moderators and get them to work.
Migrate in minutes
Automated Migration from WordPress, Disqus, Commento, Muut Comments, IntenseDebate, JustComments
Fight Spam
Get protected by a classifier that is continuously trained. Automatically remove unverified comments.
Notifications
Get fine grained, high level, scheduled, or immediate notifications.
Code & Markdown Support
Automatically detect, color, and format pasted code snippets.
Adaptive
Adapts to your site - whether it has a light or a dark theme.
Localized
The client-side widgets and emails are fully localized in English, French, German, Spanish, Italian, Polish, and Russian using browser locale detection.
Go Incognito
Allow anonymous commenting, where an email is not required to comment.
Increase Engagement
FastComments decreases the time to comment, either with an SSO integration that uses the user's existing account, or by providing a very low-friction way for them to sign up.
Ready for Enterprise
User Management
Manage users with fine-grained control over permissions.
GDPR Compliance
FastComments is GDPR compliant. See our Privacy Policy for how we manage user data.
Development Support
You won't be left in the dark with direct development, integration, and setup support.
You're not the first, or the 100th...
Battle Tested
19,565,815 page loads in the last year.
Trusted
... by 236 organizations.
Used
... by 29,505 commenters.
Get Started