Elasticsearch vs OpenSearch: Which is Better in 2026?
Choosing between Elasticsearch and OpenSearch comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Elasticsearch wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick OpenSearch if you need a free tier to start with.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Elasticsearch
Distributed search and analytics
Best for you if:
- • You want fast search
OpenSearch
Open-source search and analytics suite
Best for you if:
- • You want open source
| At a Glance | Elasticsearch | OpenSearch |
|---|---|---|
Starts at | Free Free plan | Free Free plan |
Category | Data & Databases Analytics | Data & Databases Analytics |
Rating | 4.5/5 G2 4.5 · Capterra 4.6 363 reviews | 4.4/5 G2 4.4 15 reviews |
Free plan | Yes | Yes |
Watch out for | Increased data storage can rapidly raise costs | EBS storage costs beyond free tier |
Choose Elasticsearch or OpenSearch?
Choose Elasticsearch if
- You want fast search
- You want scalable
Choose OpenSearch if
- You want open source
- You want community driven
In-Depth Analysis
Elasticsearch
Distributed search and analytics
Elasticsearch offers a fair and generous pricing model, especially with its robust free self-hosted option.
Watch out
Increased data storage can rapidly raise costs
Strengths
- Pro: Fast search
- Pro: Scalable
- Pro: Great ecosystem
Weaknesses
- Con: Resource hungry
- Con: Complex operations
Key features
OpenSearch
Open-source search and analytics suite
OpenSearch offers a very generous pricing model with a robust free open-source option and a substantial AWS Free Tier.
Watch out
EBS storage costs beyond free tier
Strengths
- Pro: Open source
- Pro: Community driven
- Pro: No licensing concerns
Weaknesses
- Con: Self-managed complexity
- Con: Plugin ecosystem smaller than Elastic
Key features
Pricing: Elasticsearch vs OpenSearch
| Plan | Elasticsearch | OpenSearch |
|---|---|---|
| Tier 1 | $0 Free (Self-hosted) | Free Open Source |
| Tier 2 | Usage-based Serverless | Free AWS Free Tier |
| Tier 3 | From $0.0208/hour Hosted (Standard) | $174 AWS Serverless |
| Tier 4 | Custom Enterprise | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Elasticsearch pricing and OpenSearch pricing.
Key Takeaways
Elasticsearch
- Larger review base (363 reviews)
- Free tier available
- Our pick for this comparison
OpenSearch
- Choose if you want open-source search and analytics suite
The Bottom Line
Elasticsearch wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick.
Frequently Asked Questions
Is Elasticsearch or OpenSearch better in 2026?
Elasticsearch wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Elasticsearch for data & databases workflows (main strength: fast search). Pick OpenSearch for data & databases workflows (main strength: open source).
What are Elasticsearch and OpenSearch used for?
Elasticsearch: Distributed search and analytics. OpenSearch: Open-source search and analytics suite.
What does Elasticsearch cost vs OpenSearch?
Elasticsearch's paid plans start at Free (Hosted (Standard)). OpenSearch's paid plans start at Free (AWS Serverless).
What's the main difference between Elasticsearch and OpenSearch?
Elasticsearch's main strength: fast search. OpenSearch's main strength: open source.