1. PostgreSQL
PostgreSQL Global Development Group · Global · Databases & data platforms · 4.7/5
Advanced open-source relational database.
Free
Free plan available
Databases & data platforms · Alternatives
Best OpenSearch alternatives in India (2026)
OpenSearch is a databases & data platforms product from OpenSearch Foundation, Global, priced at Free with a free plan. We compared 20 alternatives on published price, free plan, platforms and made-in-India support: 20 have a free plan, 0 are built in India.
Quick answer
The closest alternatives to OpenSearch are PostgreSQL (Free), Cassandra (Free), Apache Druid (Free), DuckDB (Free) and RabbitMQ (Free). PostgreSQL is the top-ranked option with a free plan.
OpenSearch alternatives compared
Ranked by how closely each product matches OpenSearch's category, pricing model, platforms and business size, then by rating. Prices exclude GST.
| # | Software | Starting price | Free plan | Platforms | Made in India | Rating | Compare |
|---|---|---|---|---|---|---|---|
| — | OpenSearch (current) | Free | Yes | Web | No | 4.5/5 | — |
| 1 | PostgreSQL | Free | Yes | Web | No | 4.7/5 | |
| 2 |  Cassandra | Free | Yes | Web | No | 4.7/5 | |
| 3 |  Apache Druid | Free | Yes | Web | No | 4.5/5 | |
| 4 |  DuckDB | Free | Yes | Web | No | 4.4/5 | |
| 5 |  RabbitMQ | Free | Yes | Web | No | 4.5/5 | |
| 6 |  Apache Kafka | Free | Yes | Web | No | 4.5/5 | |
| 7 |  Apache Spark | Free | Yes | Web | No | 4.4/5 | |
| 8 |  CouchDB | Free | Yes | Web | No | 4.4/5 | |
| 9 |  pgvector | Free | Yes | Web | No | 4.3/5 | |
| 10 |  MySQL | Free plan | Yes | Web | No | 4.6/5 | |
| 11 |  MongoDB | Free plan | Yes | Web | No | 4.6/5 | |
| 12 |  MariaDB | Free plan | Yes | Web | No | 4.6/5 | |
| 13 |  Microsoft SQL Server | Free plan | Yes | Web | No | 4.6/5 | |
| 14 |  Redis | Free plan | Yes | Web | No | 4.6/5 | |
| 15 |  Apache Hive | Free | Yes | Web | No | 4.4/5 | |
| 16 |  Elasticsearch | Free plan | Yes | Web | No | 4.6/5 | |
| 17 |  Hadoop | Free | Yes | Web | No | 4.4/5 | |
| 18 |  Trino | Free | Yes | Web | No | 4.3/5 | |
| 19 |  Presto | Free | Yes | Web | No | 4.3/5 | |
| 20 |  ScyllaDB | Free plan | Yes | Web | No | 4.5/5 |
Top 10 OpenSearch alternatives in detail
2. Cassandra
Apache Software Foundation · Wilmington · Databases & data platforms · 4.7/5
Distributed NoSQL.
Free
Free plan available
3. Apache Druid
Apache Software Foundation · Wilmington · Databases & data platforms · 4.5/5
Real-time analytics database.
Free
Free plan available
Free
Free plan available
Free
Free plan available
6. Apache Kafka
Apache Software Foundation · Wilmington · Databases & data platforms · 4.5/5
Event streaming.
Free
Free plan available
7. Apache Spark
Apache Software Foundation · Wilmington · Databases & data platforms · 4.4/5
Distributed data processing.
Free
Free plan available
8. CouchDB
Apache Software Foundation · Wilmington · Databases & data platforms · 4.4/5
Document database.
Free
Free plan available
Free
Free plan available
Free plan
Free plan available
OpenSearch alternatives by what you need
Free OpenSearch alternatives
How to choose a OpenSearch alternative
- Use managed services unless you have DBAs.
- Choose a warehouse only when analytics queries slow your production DB.
- Check Indian region availability for residency.
OpenSearch alternatives — FAQs
What is the best alternative to OpenSearch in 2026?+
The closest matches to OpenSearch on App Advisor are PostgreSQL (Free), Cassandra (Free), Apache Druid (Free). They are ranked by how closely their category, pricing model, platforms and target business size match OpenSearch, then by rating. The best choice depends on your team size and budget.
Is there a free alternative to OpenSearch?+
Yes. 20 of the 20 alternatives listed have a free plan or are free: PostgreSQL (Free), Cassandra (Free), Apache Druid (Free). Free plans usually cap users, records or transactions, so check the limits against your monthly volume.
OpenSearch vs PostgreSQL: which is better?+
PostgreSQL is the closest match to OpenSearch in our catalogue. Compare them side by side before you book a demo.
How were these OpenSearch alternatives chosen?+
Every product listed sits in databases & data platforms or a category OpenSearch also covers, and OpenSearch Foundation's own products are excluded. Prices, free plans and platforms come from each vendor's official website. App Advisor does not sell any of this software.
Free shortlist
Not sure which OpenSearch alternative fits?
Tell us your team size and budget and we'll send a shortlist of three.
Related alternatives
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