Free to list, always.No paid rankings. Every recommendation explains its trade-offs.
OpenSourceChoice
Submit a project
OpenSourceChoice

Open-source projects tagged “Semantic Search”.

Inspect repositories, licenses, activity, and alternatives across the Semantic Search ecosystem.

2 projects connectedTag matches come from repository topics and catalog metadata.
Typesense
United StatesGPL-3.0

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

InfrastructureOpen-source projects grouped in this category for discovery and comparison.1 project#C++Projects tagged with this topic in the verified catalog.1 projectGithub ActionsProjects tagged with this topic in the verified catalog.2 projectsJavaScriptProjects tagged with this topic in the verified catalog.2 projectsElasticSearchSearch and analytics engine with commercial distributions.1 alternative
Metrics syncingMetrics syncingStar momentum for this project has not landed in the latest GitHub metrics sync yet. Check trending for repositories with recorded momentum.Browse trending →
Free–CustomPricingFree open source; Typesense Cloud availableFree–Custom26.3K94918 days ago
Alternatives toElasticSearchElasticSearchSearch and analytics engine with commercial distributions.1 alternative+4
Weaviate
NetherlandsBSD-3-Clause

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database

AI & Machine LearningOpen-source projects grouped in this category for discovery and comparison.1 project#GoProjects tagged with this topic in the verified catalog.1 projectGithub ActionsProjects tagged with this topic in the verified catalog.2 projectsJavaScriptProjects tagged with this topic in the verified catalog.2 projectsSelf-hostedThis project carries a self-hosting or local-deployment signal. Verify the official install guide before production use.1 self-hosted optionAI-nativeThis project includes AI-native capability signals in the catalog metadata.1 AI-native projectSupabaseOpen-core backend platform often compared with Firebase.1 alternative
Metrics syncingMetrics syncingStar momentum for this project has not landed in the latest GitHub metrics sync yet. Check trending for repositories with recorded momentum.Browse trending →
Free–CustomPricingFree open source; Weaviate Cloud availableFree–Custom16.6K1.3K26 hours ago
Alternatives toSupabaseSupabaseOpen-core backend platform often compared with Firebase.1 alternative+1
Showing 2 of 2