Category
Database
Primary data store.
14 options in this category — pick one.
PostgreSQL
The gold-standard open-source relational database.
- Cost
- FreeFree to self-host; hosting costs extra
- Popularity
- Difficulty
- Medium
#open-source#self-hostable
LLM knowledge
MySQL
The classic open-source RDBMS.
- Cost
- Free
- Popularity
- Difficulty
- Medium
#open-source#self-hostable
LLM knowledge
Redis
In-memory data store for caching, queues, and sessions.
- Cost
- $0+ / moFree self-host; Upstash ~$0.20 per 100k
- Popularity
- Difficulty
- Medium
#realtime#open-source
LLM knowledge
Neon
Serverless Postgres with branching.
- Cost
- $0–$19 / moFree tier; $19+/mo Pro
- Popularity
- Difficulty
- Easy
#serverless#low-cost
LLM knowledge
Supabase
Postgres plus auth, storage, and realtime in one platform.
- Cost
- $0–$25 / moFree tier; $25+/mo Pro
- Popularity
- Difficulty
- Easy
#realtime#open-source#low-cost
LLM knowledge
MongoDB
Document database for schemaless JSON-style data.
- Cost
- $0+ / moAtlas free tier; $9+/mo
- Popularity
- Difficulty
- Medium
#open-source
LLM knowledge
Firebase
Google's realtime BaaS — Firestore, Auth, Functions.
- Cost
- $0+ / moSpark free; Blaze pay-as-you-go
- Popularity
- Difficulty
- Easy
#realtime#serverless#low-cost
LLM knowledge
DynamoDB
AWS's serverless key-value and document database.
- Cost
- $0+ / mo25GB free; usage-based
- Popularity
- Difficulty
- Hard
#serverless#enterprise
LLM knowledge
SQL Server
Microsoft's flagship relational database.
- Cost
- $0+ / moDeveloper free; licensing from ~$900/core
- Popularity
- Difficulty
- Hard
#enterprise
LLM knowledge
PlanetScale
Serverless MySQL with branching built on Vitess.
- Cost
- $39+ / moScaler plan $39+/mo
- Popularity
- Difficulty
- Medium
#serverless#enterprise
LLM knowledge
Azure SQL
Managed SQL Server on Azure.
- Cost
- $5+ / mo$5+/mo serverless
- Popularity
- Difficulty
- Medium
#enterprise
LLM knowledge
Cosmos DB
Azure's globally-distributed multi-model database.
- Cost
- $25+ / mo~$25+/mo provisioned
- Popularity
- Difficulty
- Hard
#enterprise
LLM knowledge
Convex
Reactive backend-as-a-service with TypeScript-native queries.
- Cost
- $0–$25 / moFree tier; $25+/mo Pro
- Popularity
- Difficulty
- Easy
#realtime#typescript#serverless
LLM knowledge
Turso
Edge-replicated SQLite (libSQL).
- Cost
- $0–$29 / moFree tier; $29+/mo Scaler
- Popularity
- Difficulty
- Medium
#edge#low-cost
LLM knowledge
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