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Redis review

In-memory database with vector search

4.7
Open Source— users
Community TrustedOpen Source
68
ToolHund Score
Solid
Verified
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Our verdict

Redis 8 includes vector search (HNSW) alongside caching, streams and JSON — one datastore for many AI use cases.

ToolHund Score: 68/100 · Best for: Apps that already use Redis for caching and want vectors in the same store.

Skip it if: Cold storage of huge embedding sets — memory cost adds up.

Independently reviewed by ToolHund editors · Last verified 2026-07-26. How we score →

Strengths
  • Open source
  • Self-hostable
  • Developer control
Weaknesses
  • Requires setup
  • Can be complex for beginners
  • Needs careful permissions

Who should choose Redis?

Apps that already use Redis for caching and want vectors in the same store. The strongest fit is a buyer who will use Redis regularly for data work rather than as an occasional experiment.

Redis earns its place in a workflow when Vector search (HNSW), Cache & session, JSON & streams remove a repeated manual step. Its free access makes a real-workflow test possible before committing to a paid plan.

A practical three-step test

  1. STEP 1Run one real data task from your current workflow in Redis.
  2. STEP 2Check whether Vector search (HNSW) produces an output you can use without substantial rework.
  3. STEP 3Compare the result and time saved with at least one alternative before choosing a paid plan.

Pricing

Open source · Cloud free tier
Strong for technical teams — no license fees, you pay for infra and model usage

Buying checklist

  • Use-case fit: Apps that already use Redis for caching and want vectors in the same store.
  • Core capabilities: Vector search (HNSW), Cache & session, JSON & streams
  • Current listed pricing: Open source · Cloud free tier
  • Reason to skip: Cold storage of huge embedding sets — memory cost adds up.

Redis is most compelling for apps that already use redis for caching and want vectors in the same store. Start with the free option and upgrade only after it proves useful on a real task.

Features

  • Vector search (HNSW)
  • Cache & session
  • JSON & streams
  • Enterprise & Cloud

Redis vs top alternatives

ToolToolHund ScorePricingFree tierRating
Redis68/100Open source · Cloud free tierYes4.7/5
Julius AI84/100Free · Basic $20/moNo4.7/5
Hex Magic81/100Free · Team $24/mo per userNo4.7/5
Pinecone64/100Free starter · Standard usage-basedYes4.7/5
Julius AI
Chat with your spreadsheets
Hex Magic
AI-native data notebooks
Pinecone
Managed vector database
Weaviate
Open-source vector database

See all Redis alternatives →

Redis FAQ

What is Redis?

In-memory database with vector search Redis 8 includes vector search (HNSW) alongside caching, streams and JSON — one datastore for many AI use cases.

Is Redis free?

Yes — Redis offers a free tier or free trial. Current pricing: Open source · Cloud free tier.

How much does Redis cost?

Redis pricing: Open source · Cloud free tier. See the ToolHund review for plan details and value analysis.

What is Redis best for?

Apps that already use Redis for caching and want vectors in the same store..

What are the best Redis alternatives?

The closest alternatives in the Data category are Julius AI, Hex Magic, Pinecone.

How does ToolHund score Redis?

Redis scores 68/100 on the ToolHund rubric, which weighs capability, pricing honesty, traction and ecosystem.

Read the ToolHund scoring methodology →