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Meilisearch vs Sphinx

Meilisearch: Developer-friendly Rust search engine with typo tolerance and built-in hybrid semantic search. Sphinx: Veteran C++ full-text search server with SphinxQL, still shipping as Sphinx 3.

key differences

  • Licensing: Meilisearch is open source (permissive) (MIT (Community Edition); BUSL-1.1 for Enterprise Edition features); Sphinx is proprietary (Sphinx 3: free binaries, dual-licensed (2.x was GPL-2.0)).
  • Horizontal scaling is addon in Meilisearch and manual in Sphinx.
  • Transactions: Meilisearch offers limited ACID; Sphinx offers none.
  • Only Meilisearch has role-based access.
  • Only Sphinx has compression.

choose meilisearch for

  • +Website and documentation search
  • +E-commerce product search with facets
  • +SaaS in-app search
  • +Semantic search over a product catalog

best at · Search, Vector search, RAG

choose sphinx for

  • +Maintaining existing Sphinx deployments
  • +MySQL-backed site search
  • +Forum and classifieds search

best at · Search, Vector search

MeilisearchDeveloper-friendly Rust search engine with typo tolerance and built-in hybrid semantic search.
SphinxVeteran C++ full-text search server with SphinxQL, still shipping as Sphinx 3.
overview
Primary model
Search Engine
Search Engine
Also supports
Document, Vector
Vector
Type
Database engine
Database engine
Status
Active
Active
Developer
Meili SAS
Sphinx Technologies Inc.
First release
2018
2001
Latest version
1.56.0 (Oct 26, 2026)
3.9.1 (Dec 19, 2025)
License
Open source (permissive)MIT (Community Edition); BUSL-1.1 for Enterprise Edition features
ProprietarySphinx 3: free binaries, dual-licensed (2.x was GPL-2.0)
Free tier
✓
✓
popularity
WhichDB Score
32.3
5.2
Rank
#72
#389
GitHub stars
59.7K
–
Stack Overflow questions
101
–
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Medium (≤ 10 TB)
Horizontal scaling
Addon
Manual
Multi-region
None
None
ACID
Limited
None
Consistency
Eventual
Eventual
Schema
Flexible
Strict
Architecture
Single node, Client server
Single node, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
—
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
–
capabilities
Transactions
—
—
Joins
—
—
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
✓
✓
Geospatial
✓
✓
JSON
✓
✓
Change data capture
—
—
Triggers
—
—
Stored procedures
—
—
Materialized views
—
—
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
—
—
In-memory
—
—
Durable persistence
✓
✓
Compression
—
✓
Encryption at rest
—
—
Role-based access
✓
—
Time travel
—
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
Meilisearch search API (JSON)
SphinxQL
Client languages
JavaScript, Python, PHP, Ruby, Go, Rust, Java, Swift
PHP, Python, Java, Ruby, C
Best for
Search, Vector search, RAG
Search, Vector search
Add more to this comparisonNot sure either fits? Try smart match

Meilisearch vs Sphinx: FAQ

What is the difference between Meilisearch and Sphinx?

Meilisearch: Developer-friendly Rust search engine with typo tolerance and built-in hybrid semantic search. Sphinx: Veteran C++ full-text search server with SphinxQL, still shipping as Sphinx 3. Licensing: Meilisearch is open source (permissive) (MIT (Community Edition); BUSL-1.1 for Enterprise Edition features); Sphinx is proprietary (Sphinx 3: free binaries, dual-licensed (2.x was GPL-2.0)). Horizontal scaling is addon in Meilisearch and manual in Sphinx. Transactions: Meilisearch offers limited ACID; Sphinx offers none.

When should I choose Meilisearch over Sphinx?

Choose Meilisearch for website and documentation search; E-commerce product search with facets; and SaaS in-app search. Choose Sphinx for maintaining existing Sphinx deployments; MySQL-backed site search; and forum and classifieds search.

Is Meilisearch or Sphinx more popular?

Meilisearch ranks #72 on the WhichDB Score (32.3/100) and Sphinx ranks #389 (5.2/100). Popularity is not fit: check the requirements that matter for your project.

Are Meilisearch and Sphinx open source?

Yes. Meilisearch is open source. License: MIT (Community Edition); BUSL-1.1 for Enterprise Edition features. No. Sphinx is proprietary, closed-source software. License: Sphinx 3: free binaries, dual-licensed (2.x was GPL-2.0).