NimeshMarc

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Build multiplayer products from day one

Figma, Notion, and Linear run on a sync engine you can't bolt on later. Liveblocks is that foundation, enabling you to ship multiplayer, AI-ready products without an infra team.

Start building for free

Free to start
Startup program discount
Ship in days, not months

The sync engine startups build on when multiplayer is the product, not a feature.

Don't build a sync engine

CRDTs, offline, conflicts, and undo are solved, so you build your product.

PoC just worked

Jonathan
2m ago
We migrated one surface as a proof of concept. It just worked.
Marc
now
Nice. Ping us when you're ready to roll it out everywhere.

on our first surface

Multiplayer, even for one player

Autosave, tabs, and flaky wifi mean every app needs multiplayer infra.

Autosave across tabs

Offline edits queued

Sync when you're back on

Marc

line

AI-ready from the start

Agents join rooms, edit live with presence, and hand control back for review.

Agent left suggestions in Launch brief

45m ago

Version saved automatically

now

2 people and 1 agent in the room

1m ago

Agent filled in the draft…

2m ago

Grow into the full platform

Start with sync, then add Comments and Notifications when asked. No new vendor.

syncCommentsAI agentI left some suggestions!

Jonathan

Pricing that scales with you.

See pricing

Startups of all types and sizes have launched and grown with Liveblocks

Apply now

We'll review and get back to you soon.

Liveblocks is a game-changing developer tool. It abstracts away realtime infrastructure we never want to think about.
Teddy NiCo-founder & CTO at Magic Patterns

| - Build multiplayer products from day one