Yes, Firebase Realtime Database has a permanent free tier alongside its paid plans. The free plan includes Simultaneous connections: Up to 100 concurrent connections per database, Stored data: Up to 1 GB of database storage, and Downloaded data: Up to 10 GB of downloads per month.
About
Firebase Realtime Database is a cloud-hosted NoSQL database designed to store and sync JSON data across web and mobile applications in real time. It helps teams deliver responsive experiences with live updates, offline support, and built-in synchronization across connected clients.
The service is built for applications that need low-latency data sharing and straightforward backend integration. It also supports Firebase Authentication and security rules, making it suitable for collaborative apps, chat, presence, and other event-driven use cases.
- Real-time synchronization across clients
- Offline caching and automatic resync when devices reconnect
- Mobile and web SDKs for serverless app development
- Security rules integrated with Firebase Authentication
- Multiple database instances per project on paid plans
Free Tier Value
This free tier is a capped monthly allowance, not an uncapped forever plan, and it does not require a credit card for Spark. Using the Blaze plan’s published Realtime Database rates, the included 1 GB of storage is worth about $5/month and the 10 GB/month of downloads is worth about $1/month, with the 100 concurrent connections adding a small amount of extra value, so the package is worth about $6/month overall.
What's included in the free tier
Verified
- Simultaneous connections: Up to 100 concurrent connections per database.
- Stored data: Up to 1 GB of database storage.
- Downloaded data: Up to 10 GB of downloads per month.
- Multiple databases per project: Not included in the free tier.
See Firebase Realtime Database pricing for current limits.
Paid plans
Blaze
- free credit
- $300
- Realtime Database concurrent connections
- 200K per database
- Realtime Database stored data
- 1 GB free
- Realtime Database downloaded data
- 10 GB/month free
- Access more services and higher usage levels
- Includes Spark no-cost usage
- If eligible, get $300 in free credit
Pricing extracted from Firebase Realtime Database's pricing page. Always verify current pricing before committing.
Common questions
Is Firebase Realtime Database free forever?
Yes. Firebase Realtime Database has a permanent free tier alongside its paid plans, though the allowance typically resets each month.
Does Firebase Realtime Database require a credit card?
No. You can start on Firebase Realtime Database's free tier without entering card details.
What is Firebase Realtime Database's free tier worth?
Firebase Realtime Database's free tier is worth about $6.00 per month. That maps to an FTV score of 58/100. The FTV score is explained at freetier.co/ftv.
