TTL Countdown
Every key below has a Time-To-Live. When the TTL reaches 0, Redis deletes the key automatically.
No TTL entries found. Create one below or reseed from the Connection page.
Create a key with TTL:
Database
Database engines, connection patterns, type systems, and data strategies.
Sliding Expiry
Access extends the TTL — like a session that stays alive while you're active. Click "Access" to reset the TTL.
Rate Limiting
Sliding window rate limiter powered by @upstash/ratelimit. Click repeatedly to see the limit in action.
Cache vs DB
When to use each data paradigm — a quick reference for choosing the right tool.
| Cache (Redis) | Relational (PostgreSQL) | Graph (Neo4j) | Object Storage (R2) | |
|---|---|---|---|---|
| Data lifetime | Ephemeral (TTL) | Permanent | Permanent | Permanent |
| Data shape | Key-value | Tabular rows | Nodes + edges | Binary blobs |
| Best for | Sessions, counters, rate limits | Transactions, reports, CRUD | Relationships, traversals | Files, images, backups |
| Latency | <10ms | 50-200ms | 100-500ms | 50-300ms |
| Consistency | Eventual | ACID | ACID | Eventual |
| Query language | Redis commands | SQL | Cypher | S3 API |