Turso Edge Database FAQ & Answers

SQLite-based edge database with global replication (2025). Built on libSQL (open-source SQLite fork) that combines SQLite's embedded simplicity with distributed edge deployment. Primary database runs in home region, with automatic multi-region replication to edge locations via Fly.io infrastructure.

$4.99/month Developer plan supports unlimited databases with 500 monthly active database limit. Enables database-per-tenant multi-tenancy at massive scale: 1000 tenants = 1000 databases = $4.99/month if ≤500 active concurrently. Competitors: PlanetScale $5/database single-node entry, Neon Launch $19/month for 100 projects.

Automatic multi-region replication: create database, select regions (US-East, EU-West, Asia-Pacific), Turso replicates to all via Fly.io infrastructure (hundreds of edge locations). Reads served from nearest edge with sub-10ms latency globally. Write propagation uses eventual consistency with 1-50ms sync lag between regions.

Embedded database with no separate server process, runs in-process with application. Zero cold start overhead (no connection pool warmup). 141KB binary footprint. Native WASM support for edge functions. Schema-first with strong typing. Full SQL support (JOIN, transactions, triggers, foreign keys). Transactional guarantees (ACID).

All writes go to primary region, then asynchronously replicate to edge regions (eventual consistency). Sync lag: 1-50ms between regions. For strong consistency, query primary region directly. For read-heavy workloads, edge reads with eventual consistency are recommended.

Open-source fork of SQLite with extensions for distributed edge deployment. Adds HTTP/WebSocket protocol support, native replication, and edge-optimized features. Maintains 100% SQLite compatibility while enabling global distribution. Apache 2.0 licensed.

Use Turso for: (1) Global applications needing sub-10ms reads worldwide, (2) Database-per-tenant SaaS with hundreds/thousands of tenants, (3) Edge functions/serverless with WASM, (4) Read-heavy workloads with occasional writes, (5) Applications requiring SQLite compatibility at scale. Avoid for: write-heavy workloads requiring strong consistency, complex distributed transactions, or analytics on large datasets.

Turso: $4.99/month for unlimited databases (500 active limit) = database-per-tenant at scale. PlanetScale: $5/database minimum = $5000/month for 1000 tenants. For 100+ tenant applications, Turso is 100-1000x cheaper for database-per-tenant architecture.

Read latency: sub-10ms globally via edge replication. Write latency: 20-100ms (depends on primary region distance). Replication lag: 1-50ms. No cold start overhead (embedded database). Query performance: SQLite-level (microseconds for indexed queries). Concurrent connections: 1000+ per edge location.

Native SDKs for serverless: TypeScript/JavaScript (Cloudflare Workers, Vercel Edge, Deno Deploy), Python (AWS Lambda), Go, Rust. WASM support for WebAssembly runtimes. HTTP/WebSocket protocol (no TCP connection required). Edge-optimized with connection pooling built-in. Zero cold start impact due to embedded architecture.

$4.99/month includes: unlimited databases (500 monthly active), 9GB total storage across all databases, 1 billion row reads/month, 25 million row writes/month, 500 databases active concurrently. Free tier: 3 databases, 1GB storage, 1 billion row reads.

Schema changes applied to primary region, then automatically propagate to all edge regions within 1-50ms. Use turso db schema push for migrations. Supports both synchronous (wait for replication) and asynchronous modes. Recommended: apply migrations during low-traffic windows to minimize inconsistency window.

Dashboard metrics: database size, row reads/writes, active connections, replication lag per region. CLI commands: turso db inspect, turso db show. API access to metrics via HTTP. Alerts for quota limits (storage, reads, writes). No built-in APM or query profiling (use SQLite EXPLAIN QUERY PLAN locally).

Automatic daily backups for all databases (retained 7 days on Developer plan). Point-in-time recovery available on higher tiers. Manual snapshots via turso db snapshot create. Restore via turso db restore. Multi-region replication provides inherent disaster recovery (data replicated to multiple edge locations).

SQLite-based edge database with global replication (2025). Built on libSQL (open-source SQLite fork) that combines SQLite's embedded simplicity with distributed edge deployment. Primary database runs in home region, with automatic multi-region replication to edge locations via Fly.io infrastructure.

$4.99/month Developer plan supports unlimited databases with 500 monthly active database limit. Enables database-per-tenant multi-tenancy at massive scale: 1000 tenants = 1000 databases = $4.99/month if ≤500 active concurrently. Competitors: PlanetScale $5/database single-node entry, Neon Launch $19/month for 100 projects.

Automatic multi-region replication: create database, select regions (US-East, EU-West, Asia-Pacific), Turso replicates to all via Fly.io infrastructure (hundreds of edge locations). Reads served from nearest edge with sub-10ms latency globally. Write propagation uses eventual consistency with 1-50ms sync lag between regions.

Embedded database with no separate server process, runs in-process with application. Zero cold start overhead (no connection pool warmup). 141KB binary footprint. Native WASM support for edge functions. Schema-first with strong typing. Full SQL support (JOIN, transactions, triggers, foreign keys). Transactional guarantees (ACID).

All writes go to primary region, then asynchronously replicate to edge regions (eventual consistency). Sync lag: 1-50ms between regions. For strong consistency, query primary region directly. For read-heavy workloads, edge reads with eventual consistency are recommended.

Open-source fork of SQLite with extensions for distributed edge deployment. Adds HTTP/WebSocket protocol support, native replication, and edge-optimized features. Maintains 100% SQLite compatibility while enabling global distribution. Apache 2.0 licensed.

Use Turso for: (1) Global applications needing sub-10ms reads worldwide, (2) Database-per-tenant SaaS with hundreds/thousands of tenants, (3) Edge functions/serverless with WASM, (4) Read-heavy workloads with occasional writes, (5) Applications requiring SQLite compatibility at scale. Avoid for: write-heavy workloads requiring strong consistency, complex distributed transactions, or analytics on large datasets.

Turso: $4.99/month for unlimited databases (500 active limit) = database-per-tenant at scale. PlanetScale: $5/database minimum = $5000/month for 1000 tenants. For 100+ tenant applications, Turso is 100-1000x cheaper for database-per-tenant architecture.

Read latency: sub-10ms globally via edge replication. Write latency: 20-100ms (depends on primary region distance). Replication lag: 1-50ms. No cold start overhead (embedded database). Query performance: SQLite-level (microseconds for indexed queries). Concurrent connections: 1000+ per edge location.

Native SDKs for serverless: TypeScript/JavaScript (Cloudflare Workers, Vercel Edge, Deno Deploy), Python (AWS Lambda), Go, Rust. WASM support for WebAssembly runtimes. HTTP/WebSocket protocol (no TCP connection required). Edge-optimized with connection pooling built-in. Zero cold start impact due to embedded architecture.

$4.99/month includes: unlimited databases (500 monthly active), 9GB total storage across all databases, 1 billion row reads/month, 25 million row writes/month, 500 databases active concurrently. Free tier: 3 databases, 1GB storage, 1 billion row reads.

Schema changes applied to primary region, then automatically propagate to all edge regions within 1-50ms. Use turso db schema push for migrations. Supports both synchronous (wait for replication) and asynchronous modes. Recommended: apply migrations during low-traffic windows to minimize inconsistency window.

Dashboard metrics: database size, row reads/writes, active connections, replication lag per region. CLI commands: turso db inspect, turso db show. API access to metrics via HTTP. Alerts for quota limits (storage, reads, writes). No built-in APM or query profiling (use SQLite EXPLAIN QUERY PLAN locally).

Automatic daily backups for all databases (retained 7 days on Developer plan). Point-in-time recovery available on higher tiers. Manual snapshots via turso db snapshot create. Restore via turso db restore. Multi-region replication provides inherent disaster recovery (data replicated to multiple edge locations).