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On the recordRead 14 Nov 202614 facts
Azure Cosmos DB Emulator
Plans and prices
Free
Free
Local development and testing without an Azure subscription · Available for Windows or Linux environments
Read 20 Sep 2026 · azure.microsoft.com
Azure Cosmos DB Emulator
Free
Local development and offline testing · Not recommended for production workloads
Read 14 Nov 2026 · learn.microsoft.com
On the record
- API support
- The Linux vNext emulator supports only the API for NoSQL in gateway mode, with a subset of features.learn.microsoft.com · read 14 Nov 2026
- Authentication and transport
- The classic emulator requires key authentication over TLS/SSL; Linux vNext currently does not enforce authentication.learn.microsoft.com · read 14 Nov 2026
- CI integrations
- Microsoft documents CI workflow examples using GitHub Actions for .NET, Python, Java, and Go on x64 and ARM64 Linux runners.learn.microsoft.com · read 14 Nov 2026
- Current feature gap
- Linux vNext does not support authentication enforcement, stored procedures, triggers, or UDFs.learn.microsoft.com · read 14 Nov 2026
- Data Explorer
- The Linux vNext emulator includes an interactive Data Explorer component.learn.microsoft.com · read 14 Nov 2026
- Linux container
- The next-generation emulator is Linux-based and available as a Docker container.learn.microsoft.com · read 14 Nov 2026
- Linux vNext authentication limitation
- Linux vNext currently does not enforce authentication.learn.microsoft.com · read 14 Nov 2026
- Local-to-cloud transition
- Applications can transition from the emulator to an Azure Cosmos DB account with minimal friction.learn.microsoft.com · read 14 Nov 2026
- Observability
- The Linux vNext emulator supports OpenTelemetry metrics including request rates, query execution times, resource utilization, and error rates.learn.microsoft.com · read 14 Nov 2026
- Processor limitation
- The Linux-based emulator does not support developer machines running on Apple silicon or Microsoft ARM chips.learn.microsoft.com · read 14 Nov 2026
- Production use
- Microsoft does not recommend using the emulator for production workloads.learn.microsoft.com · read 14 Nov 2026
- Purpose
- Provides a local environment that emulates Azure Cosmos DB for development and offline testing.learn.microsoft.com · read 14 Nov 2026
- Scaling limitation
- The classic emulator supports only one running instance and cannot be scaled out or replicated across regions.learn.microsoft.com · read 14 Nov 2026
- Throughput limitation
- The classic emulator supports provisioned throughput but not serverless throughput.learn.microsoft.com · read 14 Nov 2026
