# Google Cloud Spanner vs SQLite

**Leader by vioscaleAI score:** SQLite

| Attribute | Google Cloud Spanner | SQLite |
|---|---|---|
| **vioscaleAI score** | 54.9 (38% (low)) | 60.1 (53% (medium)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | - | 10,602 |
| adoption.stackoverflow_questions | - | 40,000 |
| content.faq | `[{"answer":"Google Cloud's globally distributed, multi-model database supporting relational, graph, key-value, and search capabilities with native PostgreSQL interface and Gemini AI integration. It is indexed under Relational Databases.","source":"https://cloud.google.com/spanner","question":"What is Google Cloud Spanner?","confidence":0.6},{"answer":"Google Cloud Spanner offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://cloud.google.com/spanner","question":"Is Google Cloud Spanner free?","confidence":0.6},{"answer":"Yes. Google Cloud Spanner can be deployed cloud / SaaS, hybrid, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://cloud.google.com/spanner","question":"Can Google Cloud Spanner be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for Google Cloud Spanner, including Gemini Enterprise Agent Platform, Gemini CLI, Model Context Protocol (MCP), Agent Development Kit (ADK) and Data Agent Kit. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cloud.google.com/spanner","question":"What does Google Cloud Spanner integrate with?","confidence":0.6}]` | `[{"answer":"SQLite is a C-language library that provides a lightweight, self-contained SQL database engine with no external dependencies or separate server process. It is embedded directly into applications and is the most widely deployed database engine in the world, found in virtually all mobile phones and most computers.","source":"https://www.sqlite.org","question":"What is SQLite?","confidence":0.95},{"answer":"Yes. SQLite's source code is placed in the public domain by its authors and contributors. Anyone is free to copy, modify, use, compile, and distribute SQLite for any purpose—commercial or non-commercial—without requiring permission or payment.","source":"https://www.sqlite.org/copyright.html","question":"Is SQLite open source and free?","confidence":0.98},{"answer":"SQLite is designed as a replacement for file input/output operations like fopen() and fread(), not as a replacement for enterprise database servers like Oracle or PostgreSQL. It is optimized for storing structured data within applications with minimal overhead and configuration.","source":"https://www.sqlite.org/about.html","question":"What is SQLite designed to replace?","confidence":0.95},{"answer":"SQLite excels for embedded applications, mobile devices, local desktop applications, and low-to-medium traffic websites (under roughly 100,000 hits per day). Use a client-server database like PostgreSQL or MySQL if your application requires multiple concurrent writers, network database access, or extreme scalability.","source":"https://www.sqlite.org/whentouse.html","question":"When should I use SQLite versus a client-server database?","confidence":0.93},{"answer":"SQLite allows only one writer at a time, though multiple readers can work concurrently. Databases can theoretically reach 281 terabytes in size and support rows up to 1 gigabyte, though most deployments are considerably smaller and single-file-based.","source":"https://www.sqlite.org/about.html","question":"What are SQLite's concurrency and size limitations?","confidence":0.92},{"answer":"SQLite is highly reliable with ACID transaction support and aviation-grade testing including 100 percent branch coverage. It recovers cleanly from power failures and system crashes, making it suitable for critical embedded applications, though its single-writer model makes it unsuitable for high-concurrency server environments.","source":"https://www.sqlite.org/about.html","question":"How reliable is SQLite for production use?","confidence":0.94},{"answer":"SQLite provides a C API for direct integration and is widely supported by bindings in nearly every major programming language, including Python, JavaScript, Java, C#, Ruby, PHP, and others. Its public domain status allows libraries to be created for any language or platform.","source":"https://www.sqlite.org","question":"What programming languages can use SQLite?","confidence":0.9}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | Google Cloud Spanner is a managed database service that unifies multiple data models (relational, key-value, graph, vector search) on one platform. It provides up to 99.999% uptime with globally consistent transactions through a distributed timestamp system. | An open-source, zero-configuration database engine that provides complete SQL functionality in a compact library designed to be embedded directly into applications with minimal setup or external dependencies. |
| features.capabilities | `{"isolation":"serializable","sql_model":"full_sql","deployment":"managed","consistency":"strong","replication":"consensus","extensibility":true,"license_class":"proprietary","horizontal_scale":"distributed_native","acid_transactions":"full","automatic_failover":true,"wire_compatibility":"postgres"}` | `{"hosting":"self","sql_model":"full_sql","data_model":"relational","deployment":"embedded","serverless":true,"consistency":"strong","geo_spatial":"extension","replication":"async","sql_support":true,"extensibility":true,"json_document":true,"license_class":"permissive","managed_cloud":false,"full_text_search":true,"horizontal_scale":"single_node","acid_transactions":"full","automatic_failover":false,"horizontal_scaling":false,"wire_compatibility":"none"}` |
| integrations.count | 4 | - |
| integrations.list | `[{"name":"Gemini Enterprise Agent Platform"},{"name":"Gemini CLI"},{"name":"Model Context Protocol (MCP)"},{"name":"Agent Development Kit (ADK)"},{"name":"Data Agent Kit"},{"url":"https://github.com/gemini-cli-extensions/spanner","name":"VS Code","native":false,"category":"development"},{"name":"Cursor","native":false,"category":"development"},{"name":"GitHub Copilot","native":false,"category":"development"},{"name":"Kiro","native":false,"category":"development"}]` | - |
| language.primary | - | C |
| license.spdx | - | blessing |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"cli":true,"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"usage","summary":"Usage-based pricing: compute capacity (nodes/processing units, hourly), storage (monthly), backups, data replication, network bandwidth. Free 90-day trial instances. Optional 1-year and 3-year committed use discounts. Three editions available: Standard, Enterprise, and Enterprise Plus.","currency":"USD","freeTier":true,"sourceUrl":"https://cloud.google.com/spanner","retrievedAt":"2026-08-03T12:40:26.715Z","freeTrialDays":90,"billingPeriods":["hour","month"]}` | `{"type":"open_source","summary":"Free and open source, public domain","freeTier":true,"sourceUrl":"https://www.sqlite.org","retrievedAt":"2026-08-14T12:15:03.546Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | low | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 60 |
| reliability.sla_pct | 99.999 | - |
| reliability.status_page | yes | - |
| security.scorecard | - | 4.5 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=rustlersqls&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Relational Databases)

| Capability | Google Cloud Spanner | SQLite |
|---|:--:|:--:|
| **Core** |  |  |
| SQL model | Full SQL | Full SQL |
| **Transactions** |  |  |
| ACID transactions | Full | Full |
| Highest isolation level | Serializable | - |
| **Consistency** |  |  |
| Consistency | Strong | Strong |
| **Scale** |  |  |
| Horizontal scale | Natively distributed | Single-node |
| **Replication** |  |  |
| Replication | Consensus (Raft/Paxos) | Async |
| **Availability** |  |  |
| Automatic failover / HA | ✓ | ✗ |
| **Deployment** |  |  |
| Deployment | Managed | Embedded |
| Serverless / scale-to-zero | - | ✓ |
| **Compatibility** |  |  |
| Wire compatibility | Postgres protocol | None |
| **Extensibility** |  |  |
| Extensions / plugins / UDFs | ✓ | ✓ |
| **Licensing** |  |  |
| Licence class | Proprietary | Permissive OSS |
| **Data types** |  |  |
| JSON / document support | - | ✓ |
| Geo / spatial | - | Extension |

*Source: vioscaleAI. Generated 2026-10-16T20:03:53.942Z. "-" = undocumented, not absent.*