Redis costs $25/mo.
These cost $0.
2 free alternatives to Redis, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
The top-rated free, open-source replacement for Redis is Dragonfly (Open Source Open Source). Across this category, 1 self-hostable tool is available (including Dragonfly). Switching a 5-person team saves up to $1,500/year compared to Redis's $25/mo subscription.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Redis.
Redis vs Free Alternatives
Quick side-by-side comparison · $0/mo vs $25/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Dragonfly | open source | Open Source | Self-host | ★ 31.8k | Redis vs Dragonfly → |
| SlateDB | open source | Open Source | Local | ★ 3.6k | Redis vs SlateDB → |
The picks
2 open source · ranked by fit
- 01
Dragonfly
open sourceOpen SourceSelf-host31.8knov 2026Dragonfly is a high-performance, Redis-compatible in-memory data store that delivers up to 25x more throughput and 80% lower costs than legacy solutions.
The catch vs RedisRequires self-hosting setup, updates, and server maintenance compared to managed Redis.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Clone https://github.com/dragonflydb/dragonfly or deploy with Docker Compose
- setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- your data
- All application data and configuration live on your own server or local database.
- checked
- 2026-11-07
- 02
SlateDB
open sourceOpen SourceLocal3.6knov 2026SlateDB is an embedded storage engine that leverages object storage for durability, scalability, and simplified replication without the need for disk management.
The catch vs RedisCommunity-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
- platforms
- desktopcross-platformone-click install
- install
- Clone https://github.com/slatedb/slatedb or deploy with Docker Compose
- setup
- Download the native package or installer for your operating system.
- your data
- All application data lives locally on your own machine.
- checked
- 2026-11-07
Redis Head-to-Head Comparisons (2027)
Side-by-side trade-off breakdowns · 2 free alternatives
Frequently Asked Questions
Direct answers · Redis open-source replacements
What is the best free alternative to Redis?+
The top free alternative to Redis is Dragonfly (open source, Open Source). Dragonfly is a high-performance, Redis-compatible in-memory data store that delivers up to 25x more throughput and 80% lower costs than legacy solutions. Other popular Redis replacements include SlateDB.
Can I self-host a free replacement for Redis?+
Yes. Of the 2 free alternatives to Redis, 1 can be self-hosted on your own server or local machine: Dragonfly (Open Source).
How much does switching from Redis to a free alternative save?+
Redis starts at $25/month per seat ($300/year). Switching a 5-person team to a free alternative like Dragonfly saves $1,500 per year in software subscription fees.
Should I vibe-code or build my own Redis clone from scratch?+
Our build verdict for Redis is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Redis or rebuilding it from scratch, deploy one of the 2 battle-tested open-source alternatives like Dragonfly.
What is the catch when switching from Redis to Dragonfly?+
Requires self-hosting setup, updates, and server maintenance compared to managed Redis.
