Upstash vs Momento vs DragonflyDB (2026)
Redis is the standard for caching and real-time data. But managed Redis is expensive. These three alternatives offer different tradeoffs.
Quick Comparison
| Feature | Upstash | Momento | DragonflyDB |
|---|---|---|---|
| Type | Serverless Redis | Serverless cache | Redis-compatible server |
| Protocol | Redis | Custom SDK | Redis (drop-in) |
| Pricing | Pay-per-request | Pay-per-request | Self-host or cloud |
| Free Tier | 10K commands/day | 50GB transfer/mo | Free (self-host) |
| Serverless | ✅ | ✅ | ❌ (server-based) |
| Global Replication | ✅ | ✅ | ❌ |
| Performance | Good (HTTP) | Good | ✅ Best (25x Redis) |
| Redis Compatible | ✅ | ❌ (own SDK) | ✅ 100% |
Upstash — Serverless Redis
import { Redis } from '@upstash/redis'
const redis = new Redis({
url: process.env.UPSTASH_REDIS_URL,
token: process.env.UPSTASH_REDIS_TOKEN,
})
await redis.set('key', 'value', { ex: 3600 })
const value = await redis.get('key')
Pros: True serverless (no idle costs), HTTP-based (works in edge/serverless), global replication, generous free tier. Cons: HTTP adds ~10ms latency vs TCP Redis, per-request pricing gets expensive at high volume.
Momento — Serverless Cache
import { CacheClient, CredentialProvider } from '@gomomento/sdk'
const client = new CacheClient({
credentialProvider: CredentialProvider.fromEnvironmentVariable({ environmentVariableName: 'MOMENTO_API_KEY' }),
defaultTtlSeconds: 60,
})
await client.set('cache', 'key', 'value')
const response = await client.get('cache', 'key')
Pros: True serverless, generous free tier (50GB transfer), topics (pub/sub), no Redis knowledge needed. Cons: Not Redis-compatible (own SDK), smaller community, vendor lock-in.
DragonflyDB — The Performance Monster
# Drop-in Redis replacement
docker run --ulimit memlock=-1 -p 6379:6379 docker.dragonflydb.io/dragonflydb/dragonfly
Use any Redis client — DragonflyDB is wire-compatible:
import Redis from 'ioredis'
const redis = new Redis() // Same as connecting to Redis
Pros: 25x faster than Redis (multi-threaded), 100% Redis compatible, drop-in replacement, better memory efficiency. Cons: Self-host required (cloud is new), not serverless, you manage infrastructure.
Pricing Comparison
| Usage | Upstash | Momento | DragonflyDB |
|---|---|---|---|
| Low (10K/day) | Free | Free | Server cost only |
| Medium (1M/day) | ~$20/mo | ~$15/mo | $10-20/mo (VPS) |
| High (100M/day) | ~$200/mo | ~$150/mo | $20-50/mo (VPS) |
Self-hosted DragonflyDB is cheapest at scale.
Decision Guide
| Scenario | Choose |
|---|---|
| Serverless/edge functions | Upstash |
| Drop-in Redis replacement | DragonflyDB |
| Maximum performance | DragonflyDB |
| No Redis knowledge | Momento |
| Global caching | Upstash (global replication) |
| Cost-sensitive, high volume | DragonflyDB (self-host) |
| Vercel/Cloudflare Workers | Upstash |
FAQ
Can I switch from Redis to DragonflyDB?
Yes. DragonflyDB is wire-compatible. Change the connection string and you're done.
Is Upstash fast enough for real-time?
For most use cases, yes. The HTTP overhead adds ~10ms. For sub-millisecond needs, use DragonflyDB or native Redis.
What about Redis Cloud?
Redis Cloud (by Redis Inc) is the official managed Redis. More expensive than Upstash, less performant than DragonflyDB. Use when you need official Redis support.
Bottom Line
Upstash for serverless/edge (works in Vercel, Cloudflare Workers). DragonflyDB for maximum performance and cost efficiency (self-host). Momento if you don't need Redis compatibility. Start with Upstash for simplicity, move to DragonflyDB when performance or cost demands it.