Azure Search

AI-powered cloud search service for mobile and web app development

Uncover latent insights from all your content

Azure Search is the only cloud search service with built-in artificial intelligence (AI) capabilities that enrich all types of information to easily identify and explore relevant content at scale. It uses the same integrated Microsoft natural language stack that Bing and Office have used for more than a decade, and prebuilt AI APIs across vision, language, and speech. Spend more time innovating and less time maintaining a complex cloud search solution.

Fully managed search as a service to reduce complexity and scale easily

Auto-complete, geospatial search, filtering, and faceting capabilities for a rich user experience

Built-in AI capabilities including OCR, key phrase extraction, and named entity recognition to unlock insights

Flexible integration of custom models, classifiers, and rankers to fit your domain-specific needs

Start, maintain, and scale with minimal investment

Deploy a search index quickly and avoid operational maintenance. This fully managed cloud search service reduces the complexity of data ingestion and index creation by integrating with popular Azure storage solutions and offering index functionality exposed through a simple REST API or .NET SDK. Deploy a fully configured search service with intuitive user experiences such as scoring, faceting, suggestions, synonyms, and geo-search—all while avoiding the operational overhead needed to debug index corruption, monitor service availability, or manually scale during traffic fluctuations.

See how one customer saved months of upfront dev time setting up a search index

Create searchable content using pre-trained AI models

Take advantage of pre-trained speech, vision, and language models that transform raw, unstructured information into searchable content. Using the cognitive search feature, create enrichment pipelines that use built-in AI APIs to bring structure to your data before it gets indexed, either programmatically or while staying in the Azure Search portal. Applying AI capabilities such as OCR, key phrase extraction, location, people, and organization detection is as simple as checking a box in the Azure Search portal.

Customize to meet business goals and industry requirements

Extend the Azure Search platform to match your specific business goals and industry. Better understand your data using custom models and classifiers, such as legal clause classifiers or manufacturing material identifiers, available in any language or framework. After you’ve deployed your cloud search service, quickly adjust your search results using rich, custom-tuned ranking models to tie your results to your business goals.

See how one customer integrated custom skills to meet specific industry needs

Advanced data security and compliance

  • Protect your content from malicious acts with encryption built in throughout the entire indexing pipeline
  • Meet a broad set of international and industry-specific compliance standards
  • Control per-user access to content through security filters
  • Get multilayer Microsoft security across physical datacenters, infrastructure, and operations

Get the power, control, and customization you need with flexible pricing

Azure Search is available in combinable search units that include reliable storage and throughput to set up and scale a cloud search experience quickly and cost-effectively. Add search units to increase queries per second, to enable high availability, or for faster data ingestion. Remove search units during low traffic periods.

Not available Free Basic Standard Storage Optimized
Best for Estimating a projected index size and capacity planning. Running workloads requiring light compute and storage requirements. Most workloads, offering a balance of compute, memory, and storage. Running workloads with high volumes of data cost-effectively when you need less memory and compute.
Search unit Free Basic option S1, S2, and S3 options L1 and L2 options
Additional capabilities Document cracking: image extraction
AI enrichment

Documentation and training

Developer documentation

Learn how to consolidate searchable content into a single fast index for a broad range of scenarios, see how to extract and enrich content using AI-powered algorithms with cognitive search resources and sample data, or learn more about cognitive search in Azure Search.

Learning modules and quickstarts

Get an overview of how Azure Search enables knowledge mining, take a knowledge mining bootcamp, or create an Azure Search service in the portal.

Migrate to Azure

Explore resources to migrate apps, data, and infrastructure at your own pace. Use assessment, migration, and cost management tools free as you transition your on-premises workloads to Azure VMs.

Get started with Azure Search

Sign up for an Azure free account and create an Azure Search service.
Learn how to ingest and enrich data from a variety of sources.
Integrate search into new websites or chatbots, or add it to an existing application.

Community and Azure support

Ask questions and get support from Microsoft engineers and Azure community experts on MSDN Forum and Stack Overflow, or contact Azure support.

Popular templates and labs

Discover video walkthroughs and popular quickstart templates for common configurations made by Microsoft and the community.

See how customers are using the cloud for sophisticated search

Delivering faster, deeper, more cost-effective data insights

Archive360, a digital archiving service, asks complex questions of petabyte-sized datasets quickly and cost-effectively.

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Archive 360

Driving seamless search for millions of customers

Canadian vehicle search site uses Azure Search for its auction site, image search, and mobile and web search.

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Auto Trader

Scaling your business effectively and reliably

Audioburst, an audio search startup, scales its voice-based content platform using Azure Search.

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Creating new ways to connect users with the most relevant content

Real Madrid’s digital sports platform uses Azure Search to deliver rich content to fans, giving them control of specific cameras to review key plays and player moves in live matches.

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Real Madrid

Improving productivity with smarter services

Entertainment and lifestyle publisher Diply has increased profits from its recommendation engine by more than 15 percentage points with only a small team of developers.

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Eliminating manual processes to reduce time, error, and risk

Dutch marine contractor Van Oord skips the manual scanning, tagging, and upload process of its equipment documentation and certificates with the help of Azure Search.

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Van Oord Dredging & Marine Contractors

Frequently asked questions about Azure Search

  • Azure Search is available in more than 20 countries/regions worldwide, and new ones are being added regularly.
  • We guarantee at least 99.9 percent availability for Azure Search paid tiers.
  • Built-in indexers are available for Azure Cosmos DB, Azure SQL Database, Azure Blob Storage, and SQL Server hosted in an Azure VM. Use Azure Data Factory, with more than 80 connectors, or Azure Logic Apps to connect to your data source. Alternatively, push data into an Azure Search index, which has no restrictions on data source type.
  • Azure Search works with formats including Microsoft Word, PowerPoint, and Excel, Adobe PDF, and PNG, RTF, JSON, HTML, and XML formats.
  • Azure Search is a platform as a service that helps developers create their own cloud search solutions. Microsoft Search uses Azure Search technology to offer software as a service for enterprise search within Microsoft products.
  • Azure Search is available in more than 50 languages.

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