Elasticsearch

Elasticsearch vs OpenSearch: what is the key difference in 2026?

The question is about Elasticsearch .

Answer:
OpenSearch is an open-source fork of Elasticsearch created by Amazon in 2021 after Elastic changed its licence from Apache 2.0 to SSPL. Elasticsearch still includes proprietary features like Elastic Security and Elastic Observability. OpenSearch is the preferred choice for AWS-native deployments through Amazon OpenSearch Service. For teams needing Elastic's commercial features and Kibana, Elasticsearch is the better option. Both share the same core search engine architecture and API compatibility.

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Dmitry focuses on building deterministic, audit-ready services and low-latency transactional backends. As a Senior Backend Developer with ~6 years in production systems, he delivers Node.js and TypeScript services with Nest.j... Read More

Level
Senior
Availability
40 h/w
Experience
6 yrs.
English
B1

Denys specializes in back-end development with a focus on PHP and its frameworks. With 8 years of experience, he has developed a robust proficiency in Symfony and Laravel, employing these tools to enhance application performa... Read More

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Senior
Availability
40 h/w
Experience
8 yrs.
English
B2

Nijat is a proficient Software Engineer with a strong focus on backend development, possessing 5 years of commercial experience in various programming environments. His expertise in Java and Spring Boot has been pivotal in de... Read More

Level
Senior
Availability
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Experience
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English
B2
Victoriia S.

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Experience
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English
C1
Cortance 5-star rating on ClutchCortance 5-star rating on GoodFirms
Anush Sedrakyan
Partnership Manager

Cortance's efforts increased device compatibility, improved system interoperability, and reduced time-to-market by 20%. The team adapted to the client's workflow and provided resources aligned with the project's needs. Cortance's commitment to understanding the requirements was impressive.

Clutch
5.0/5.0
Anonymous
Co-Owner

Cortance's work resulted in a 30% reduction in development time, exceeding expectations. Their high-quality resource leasing was instrumental in surpassing the project goals, which set new benchmarks for the client. Cortance's ability to provide highly skilled tech professionals was exceptional.

Clutch
5.0/5.0
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