Meilisearch significantly outpaces OpenSearch in community adoption with 58,726 stars compared to 13,378 stars on GitHub. This 4.4x difference suggests Meilisearch has a much larger and more active community. In terms of developer contributions, OpenSearch has 2,774 forks, indicating strong developer engagement.

Both projects show recent activity, with Meilisearch last updated 2 days ago and OpenSearch 1 day ago.

Both tools share common technology foundations, being built with Bash. However, they differ in their additional technology choices: Meilisearch uses Rust while OpenSearch leverages Python, Java.

Meilisearch has been in development longer, starting 8 years ago, compared to OpenSearch which began 5 years ago. This 2.8-year head start suggests Meilisearch may have more mature features and established processes.

Meilisearch uses the MIT license, which is more permissive than OpenSearch's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Both tools serve similar use cases in Search Engines.

Meilisearch provides self-hosting options for complete data control and customization, while OpenSearch may be primarily cloud-based or require different deployment approaches.