Free Milvus alternatives: 7 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

7 of the 7 Milvus alternatives we track can be used for free (free, open source, or with a free plan). Qdrant, Pinecone and Chroma rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Qdrant	Open source	—	Yes	Self-hosted, Web	5 of 5	68.8
2	Pinecone	Free plan + paid	$20 a month flat (Builder)	No	Web	9 of 9	64.8
3	Chroma	Open source	—	Yes	Self-hosted, Linux, macOS +1	5 of 5	55.9
4	Elasticsearch	Open source	—	Yes	Self-hosted, Web	4 of 4	52.6
5	MongoDB Atlas	Free plan + paid	$0.011/hour on Flex, up to $30 a month	No	Web	7 of 7	51.2
6	Redis Open Source	Open source	—	Yes	Linux, macOS, Self-hosted	3 of 3	50.0
7	Zilliz Cloud	Free plan + paid	From $126 per month	No	Web	5 of 5	42.3

1. QdrantTop pick
Best for: Teams wanting a permissively licensed vector engine they can run anywhere
Open sourceSelf-hostableSelf-hosted, Web
68.8
score / 100
Why switch from Milvus
Open-source vector database in a single Rust binary, simpler to run on one server.
Pros
Apache 2.0 licence and easy Docker self-hosting
Strong metadata filtering alongside vector search
Free-forever cloud cluster for testing
Cons
Free cloud cluster is tiny at 1 GB of RAM
Cluster sizing is up to you, unlike serverless Pinecone
Fewer built-in AI conveniences than some managed rivals
Visit Qdrant Details and reviews
How this score is calculated
Editorial fit ×0.3100
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Qdrant a good Milvus alternative?
Verified facts
5 of 5 verified
License
Apache-2.0
Checked Nov 1, 2026github.com(opens source in a new tab)
Free cloud tier
Free forever, 1 GB RAM node
Checked Nov 8, 2026qdrant.tech(opens source in a new tab)
Written in
Rust
Checked Nov 8, 2026qdrant.tech(opens source in a new tab)
Hybrid search
Dense + sparse
Checked Nov 8, 2026qdrant.tech(opens source in a new tab)
Cloud providers
AWS, GCP, Azure
Checked Nov 8, 2026qdrant.tech(opens source in a new tab)
2. Pinecone
Best for: Teams building RAG or semantic search who want a vector database with no infrastructure to manage
Free plan + paidWeb
64.8
score / 100
Why switch from Milvus
Fully managed and serverless, for teams that don't want to operate any infrastructure.
Pros
Serverless, so there are no clusters to size or tune
Hybrid dense, sparse and full-text indexes
Free Starter plan for prototypes
Cons
Closed source with no self-hosted option
Production plans carry a monthly minimum spend
Costs can be hard to predict with heavy query volume
Visit Pinecone Details and reviews
How this score is calculated
Editorial fit ×0.387
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Pinecone a good Milvus alternative?
Verified facts
9 of 9 verified
Free plan
Yes (Starter)
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Builder plan
$20/month flat
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Standard minimum
$50/month
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Standard trial
3 weeks with $300 credits
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Enterprise uptime SLA
99.95%
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Starting price
$20 a month flat (Builder)
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Standard plan
$50 a month minimum usage
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Enterprise plan
$500 a month minimum usage
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
Free trial
3 weeks with $300 credits (Standard)
Checked Nov 8, 2026pinecone.io(opens source in a new tab)
3. ChromaAcquired
Best for: Developers who want a simple, free, self-hosted vector store for RAG and semantic search prototypes.
Open sourceSelf-hostableSelf-hosted, Linux, macOS, Windows
55.9
score / 100
Why switch from Milvus
Open-source embedding database that runs in-process with Python or JavaScript, much simpler to start with than a Milvus cluster.
Pros
Apache 2.0 licence with no usage limits on the open-source version
Quick to start with pip or npm and an embedded local mode
Combines vector, BM25, full-text, regex and metadata search
Cons
Hosted Chroma Cloud is being wound down after the Replit deal
You run, scale and back up the database yourself
Future roadmap now depends on Replit's priorities
Visit Chroma Details and reviews
How this score is calculated
Editorial fit ×0.357
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Chroma a good Milvus alternative?
Verified facts
5 of 5 verified
License
Apache-2.0
Checked Nov 5, 2026github.com(opens source in a new tab)
Owner
Joining Replit (announced Oct 2026)
Checked Nov 8, 2026trychroma.com(opens source in a new tab)
Hosted cloud
Being wound down
Checked Nov 8, 2026trychroma.com(opens source in a new tab)
Search types
Vector, full-text, regex, metadata
Checked Nov 8, 2026trychroma.com(opens source in a new tab)
Install
pip install chromadb
Checked Nov 8, 2026trychroma.com(opens source in a new tab)
4. Elasticsearch
Best for: Engineering teams with large or complex search, logging or analytics needs
Open sourceSelf-hostableSelf-hosted, Web
52.6
score / 100
Why switch from Milvus
Combines dense-vector kNN with full-text search in one engine, useful for hybrid search on data already in Elastic.
Pros
Scales to very large datasets across many nodes
Full-text, vector and hybrid search in one engine
Self-managed, hosted and serverless options
Cons
Needs real tuning and operations work to run well
Memory-hungry compared with lighter search engines
Several features need a paid Elastic subscription
Visit Elasticsearch Details and reviews
How this score is calculated
Editorial fit ×0.346
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Elasticsearch a good Milvus alternative?
Verified facts
4 of 4 verified
Open source
Yes
Checked Nov 1, 2026github.com(opens source in a new tab)
Cloud hosting
AWS, Google Cloud, Azure
Checked Nov 8, 2026elastic.co(opens source in a new tab)
Vector search
Dense and sparse, hybrid
Checked Nov 8, 2026elastic.co(opens source in a new tab)
Uptime SLA
99.95% on Platinum and Enterprise
Checked Nov 8, 2026elastic.co(opens source in a new tab)
5. MongoDB Atlas
Best for: Teams building on MongoDB who want it managed on their preferred cloud
Free plan + paidWeb
51.2
score / 100
Why switch from Milvus
Atlas Vector Search keeps embeddings next to your documents, avoiding a separate vector store for MongoDB apps.
Pros
Run by the MongoDB company on AWS, Google Cloud or Azure
Built-in full-text and vector search
Free cluster for learning and prototypes
Cons
Dedicated clusters get expensive as data grows
Database only, with no end-user auth or storage layer
Document modelling can be awkward for heavily relational data
Visit MongoDB Atlas Details and reviews
How this score is calculated
Editorial fit ×0.341
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is MongoDB Atlas a good Milvus alternative?
Verified facts
7 of 7 verified
Free cluster
512MB storage, free forever
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Flex cluster
Up to $30/month
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Dedicated cluster
From $56.94/month
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Search
Full-text and vector search built in
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Free plan
Yes, 512MB storage
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Starting price
$0.011/hour on Flex, up to $30 a month
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
Dedicated plan
From $56.94 a month ($0.08/hour)
Checked Nov 8, 2026mongodb.com(opens source in a new tab)
6. Redis Open Source
Best for: Developers who want the reference Redis with built-in JSON, search and vector features
Open sourceSelf-hostableLinux, macOS, Self-hosted
50.0
score / 100
Why switch from Milvus
Redis Query Engine adds vector indexes to a store many teams already run, for low-latency similarity search.
Pros
Huge ecosystem of clients, tutorials and hosting options
Redis 8 bundles JSON, search and vector features in one install
AGPLv3 option makes it open source again
Free GUI client (Redis Insight) from the same vendor
Cons
Licence choices (AGPLv3, SSPL, RSAL) are stricter than the old BSD licence
Windows is only supported through Docker
Mostly single-threaded command execution limits per-node throughput
Visit Redis Open Source Details and reviews
How this score is calculated
Editorial fit ×0.338
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Redis Open Source a good Milvus alternative?
Verified facts
3 of 3 verified
License
AGPLv3, SSPLv1 or RSALv2
Checked Nov 8, 2026redis.io(opens source in a new tab)
Platforms
Docker, Linux, macOS
Checked Nov 8, 2026redis.io(opens source in a new tab)
Use cases
Cache, vector and document database
Checked Nov 8, 2026redis.io(opens source in a new tab)
7. Zilliz Cloud
Best for: Teams that want Milvus at large scale without running the clusters themselves
Free plan + paidWeb
42.3
score / 100
Why switch from Milvus
Managed Milvus from the project's own team, so you stop running clusters yourself.
Pros
Compatible with open-source Milvus, so you can move between self-hosted and managed
Serverless, dedicated and bring-your-own-cloud options
Available on AWS, Google Cloud and Azure
Tiered-storage clusters cut cost for very large, rarely queried collections
Cons
Compute-unit pricing takes effort to estimate before you run a proof of concept
Dedicated clusters have a monthly floor even when idle
More concepts to learn than simpler hosted vector stores
Visit Zilliz Cloud Details and reviews
How this score is calculated
Editorial fit ×0.312
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Zilliz Cloud a good Milvus alternative?
Verified facts
5 of 5 verified
Free plan
Yes, $0 with 5 GB storage
Checked Nov 8, 2026zilliz.com(opens source in a new tab)
Dedicated starting price
From $126 per month
Checked Nov 8, 2026zilliz.com(opens source in a new tab)
Free trial
30 days
Checked Nov 8, 2026zilliz.com(opens source in a new tab)
Cloud providers
AWS, Azure, Google Cloud
Checked Nov 8, 2026zilliz.com(opens source in a new tab)
Engine
Built on Milvus
Checked Nov 8, 2026zilliz.com(opens source in a new tab)

Quick comparison

1. QdrantTop pick

Pros

Cons

Verified facts

2. Pinecone

Pros

Cons

Verified facts

3. ChromaAcquired

Pros

Cons

Verified facts

4. Elasticsearch

Pros

Cons

Verified facts

5. MongoDB Atlas

Pros

Cons

Verified facts

6. Redis Open Source

Pros

Cons

Verified facts

7. Zilliz Cloud

Pros

Cons

Verified facts