Infrastructure for user-powered products.
Replyke is the complete infrastructure layer for how users interact in your product — discussions, reactions, spaces, feeds, notifications, chat, and more. Pre-modeled. Ready in hours.
300+ projects already building with Replyke
Everything your users need, already built.
Content Model
Every piece of content is an entity.
An entity is Replyke's model for content — a post, article, product, video, or listing. Build on Replyke from day one and your content lives here natively: structured, social-ready, and fully wired to every feature automatically. Comments, reactions, votes, feeds, and saves just work.
Starting fresh?
Define your content as entities from the start. Every engagement feature is ready immediately — no extra modeling or wiring required.
Already have content?
Link your existing records with a foreign ID. Replyke maps to your data without migrations or schema changes.
Entity
The real cost
Every user-powered product ends up building the same things.
Modeling complexity
Threaded discussions, reaction aggregates, activity feeds, notification triggers — the data model alone is weeks of work. And getting it wrong means painful migrations later.
Multiplying surface area
Every feature you add touches four others. Add comments → need notifications. Add follows → need feeds. The scope never stops growing.
It's not your core product
You're building a learning platform. A marketplace. A SaaS tool. User interaction infrastructure isn't your differentiator — it's the table stakes you have to clear before you can build what matters.
Add one feature — and you need everything else.
The complete user interaction layer.
Every system your users need, already modeled and ready to wire up.
Hierarchical discussions on any content type. Nested replies, mentions, moderation, and reactions — deep-linkable to any comment.
Eight reaction types with per-type reputation scoring on entities and comments. Optimistic updates included.
Hierarchical spaces up to 10 levels deep. Per-space roles, membership approval flows, and moderation queues.
14+ event types: replies, mentions, reactions, follows. Templatable messages. Unread counts. Pagination.
Rich filtering by keyword, metadata, location, and engagement. Sort by hot/top/new. Personalized followed-only feeds.
1:1 and group conversations. Message reactions, typing indicators, unread counts, and read receipts.
Follow/unfollow with counts and lists. Mutual connections with request/accept flows. Both graph types in one system.
Attach to any content type:
A flexible model for any content: posts, products, listings, videos. Attach comments, reactions, and feeds. Zero migration.
Built for developers who move fast.
SDKs for every platform. Open source. TypeScript-first.
What you get
- @replyke/react-js—React 18/19 web
- @replyke/react-native—React Native
- @replyke/expo—Expo with secure storage
- @replyke/node—Server-side Node.js
- @replyke/js—Framework-agnostic JavaScript
- TypeScript-first—across all packages
- Open source—on GitHub
Components that are yours to own.
Install fully-customizable UI components directly into your project as editable source code — no black box.
Drop pre-built comment, notification, and social components into your project as editable source code. Built on shadcn/ui principles — customize everything, own every line.
- No black-box npm dependency — it's your code
- Tailwind CSS + shadcn/ui based
- Works with React and React Native
- Available: comments-threaded, comments-social, notifications-control
This is exactly what I was looking for — dropped it in under 10 minutes and it just worked.
Same — the Tailwind classes are totally clean to override too.
Works great with dark mode too. No extra config needed.
Really appreciate that it's editable source — not locked behind an npm version.
What are you building?
Replyke fits wherever users create, discuss, and engage.
Forums, Q&A sites, interest groups. Spaces give you sub-communities with independent permissions. Comments and reactions give you the engagement layer.
In-app discussions, changelog comments, feedback boards, user collaboration. Add user engagement without a separate vendor.
Product reviews, seller ratings, buyer feedback. Reactions + threaded comments + user reputation, all modeled and ready.
Blogs, video platforms, newsletter communities. Discussions tied to any content item. Follows, feeds, and notifications for creator–audience relationships.
Sign up, get your API keys. Under 5 minutes.
One provider. All features unlocked.
First feature live in under an hour.
Open SDKs. Open components.
Client SDKs, React/React Native components, and the CLI are fully open source under MIT. Inspect, fork, and contribute.
View on GitHubSimple, transparent pricing.
Start free and scale as you grow. Every plan includes the full user interaction infrastructure — comments, reactions, feeds, notifications, and more. No hidden fees.
Free $0 Per month | Hobby $15 Per month | Pro $25 Per month | Growth $75 Per month | |
|---|---|---|---|---|
| Dashboard Seats | 1 | 1 | 2 | 5 |
| Monthly Active Users (MAU) | 500 | 5k | 25k | 100k |
| Records stored (entities, comments, notifications, lists) | 50k | 500k | 5M | 25M |
| API Calls | 250k/month | 2M/month | 10M/month | 40M/month |
| Egress (Data Transfer Out) | 1GB | 20GB | 80GB | 320GB |
| Storage | DB 1GB + Files 1GB | DB 3GB + Files 5GB | DB 10GB + Files 25GB | DB 30GB + Files 100GB |
| Back-office & Moderation Dashboard | ||||
| AI-Powered Search | Unlimited | Unlimited | Unlimited | |
| Real-Time Chat | Unlimited | Unlimited | Unlimited | |
| Get Started → | Get Started → | Get Started → | Get Started → |
$0
/month$15
/month$25
/month$75
/monthDashboard Seats
Monthly Active Users (MAU)
Records stored (entities, comments, notifications, lists)
API Calls
Egress (Data Transfer Out)
Storage
Back-office & Moderation Dashboard
AI-Powered Search
Real-Time Chat
Building at scale?
For high-volume applications, enterprise deployments, or teams with specific compliance or SLA requirements — we'll put together a plan that fits. Let's talk.
Frequently Asked Questions
Start building today.
Free to get started. No credit card required.
Join 300+ projects already building with Replyke.