Elasticsearch vs. OpenSearch: Which one to choose? [Updated 2026]
TL;DR Elasticsearch and OpenSearch, once nearly identical, have taken very different paths. Licensing: Elasticsearch added AGPLv3 in 2024; OpenSearch stays Apache 2.0 under the Linux
Puja Ambalgekar
Puja Ambalgekar
Puja is a Technical content writer at Knowi with 3+ years of experience writing Technical content in the IT field. She has experience delivering product documentation, how-to guides, user manuals, developer documentation, blog posts, SRS specifications, whitepapers, copywriting content, and SEO optimization. She also has an MS in Computer Science and 4+ years of experience as a Software Developer.
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