# etcd vs Redis

**Leader by vioscaleAI score:** Redis

| Attribute | etcd | Redis |
|---|---|---|
| **vioscaleAI score** | 58.5 (43% (low)) | 70.8 (75% (high)) |
| activity.commits_last_30d | 70 | 44 |
| adoption.dependent_repos | 39,452 | 1 |
| adoption.github_stars | 52,359 | 76,594 |
| adoption.stackoverflow_questions | - | 26,000 |
| content.faq | `[{"answer":"etcd is a strongly consistent, distributed key-value store that provides a reliable way to store data that needs to be accessed by a distributed system or cluster of machines. It gracefully handles leader elections during network partitions and can tolerate machine failure. It is indexed under Key-Value Stores.","source":"https://etcd.io","question":"What is etcd?","confidence":0.6},{"answer":"etcd is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://etcd.io","question":"Is etcd free to use?","confidence":0.6},{"answer":"etcd supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://etcd.io","question":"What platforms does etcd support?","confidence":0.6},{"answer":"Yes. etcd can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://etcd.io","question":"Can etcd be self-hosted?","confidence":0.6},{"answer":"We have confirmed 29 integrations for etcd, including Kubernetes, Vitess, fleet, Docker, Puppet, confd, AWS ECS and SkyDNS, plus 21 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://etcd.io","question":"What does etcd integrate with?","confidence":0.6},{"answer":"Yes. etcd is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/etcd-io/etcd","question":"Is etcd open source?","confidence":0.95}]` | `[{"answer":"Redis is an in-memory data platform that stores and retrieves data at high speed, making it ideal for applications requiring real-time performance. It serves use cases including caching, session management, message queuing, leaderboards, fraud detection, and vector search for AI applications.","source":"https://redis.io","question":"What is Redis and what is it primarily used for?","confidence":0.95},{"answer":"Redis offers both options: Redis Open Source is free and available under an open-source license (version 8.0 and later uses a tri-license model with RSALv2, SSPLv1, or AGPLv3). For commercial users, Redis Inc. provides Redis Cloud (fully managed) and Redis Software (self-managed on-premise), both with paid plans.","source":"https://github.com/redis/redis","question":"Is Redis open-source or commercial?","confidence":0.95},{"answer":"Redis provides official client libraries for Python, Node.js, Java, Go, and .NET, plus numerous community-maintained libraries for other languages. This wide language support makes it compatible with most modern development stacks.","source":"https://redis.io","question":"What programming languages and platforms does Redis support?","confidence":0.92},{"answer":"Redis supports a wide range of data types including strings, lists, sets, sorted sets, hashes, streams, JSON, geospatial indexes, time-series data, and vector sets. This variety enables developers to optimize for different use cases from simple key-value storage to complex AI vector search.","source":"https://redis.io/docs/latest/develop/data-types/","question":"What data types does Redis support?","confidence":0.95},{"answer":"Redis offers three deployment options: Redis Open Source for self-managed on-premise installations, Redis Software for self-managed hybrid deployments, and Redis Cloud for fully managed cloud hosting on AWS, Azure, or Google Cloud. This flexibility allows organizations to choose based on their infrastructure and operational preferences.","source":"https://redis.io","question":"How can you deploy Redis?","confidence":0.93},{"answer":"Redis Cloud operates on a tiered model with a free tier (limited to 30 MB), an Essentials tier starting from $5 per month for shared deployment, and a Pro tier (minimum $200 per month) for dedicated deployment with multi-region capabilities. Pricing is based on data size, with option to pay hourly or commit to monthly plans.","source":"https://redis.io/pricing/","question":"What is the pricing model for Redis Cloud?","confidence":0.9},{"answer":"Common alternatives include Memcached for simple caching, database caching layers, key-value stores like DynamoDB or MongoDB, and message brokers like Apache Kafka. The choice depends on whether the primary need is ultra-fast caching, persistent storage, complex queries, or message streaming.","source":"https://redis.io","question":"What are common alternatives to Redis?","confidence":0.88},{"answer":"Redis offers optional persistence through snapshotting and append-only file (AOF) logging, though its primary design prioritizes speed via in-memory storage. For critical data, users typically pair Redis with a persistent database or use Redis Cloud's backup features. Advanced plans on Redis Cloud provide up to 99.999% uptime SLA with active-active multi-region deployment.","source":"https://redis.io","question":"Does Redis provide persistence and data reliability?","confidence":0.91}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` |
| description.long | A distributed key-value store designed to reliably store and manage critical shared state across multiple machines. It provides strong consistency guarantees via consensus, automatic TLS encryption, and gRPC APIs. | A multi-purpose in-memory data platform that functions as a cache, vector database, document store, streaming engine, and message broker, with built-in support for advanced search, transactions, and multi-region replication. |
| features.capabilities | `{"clustering":"consensus","deployment":"self_hosted","consistency":"strong","persistence":"append_log","eviction_ttl":true,"storage_tier":"persistent","licence_class":"permissive","wire_protocol":"grpc","pubsub_streams":true,"data_structures":"rich_types","redis_api_compat":"none"}` | `{"hosting":"both","clustering":"sharded","data_model":"key_value","deployment":"managed","consistency":"strong","persistence":"append_log","replication":true,"eviction_ttl":true,"storage_tier":"in_memory","transactions":"multi_exec","licence_class":"source_available","managed_cloud":true,"vector_search":true,"wire_protocol":"resp","multi_threaded":true,"pubsub_streams":true,"data_structures":"rich_types","full_text_search":true,"redis_api_compat":"full","acid_transactions":true,"horizontal_scaling":true}` |
| integrations.count | 80 | 11 |
| integrations.list | `[{"name":"Kubernetes"},{"name":"Vitess"},{"name":"fleet"},{"name":"Docker"},{"name":"Puppet"},{"name":"confd"},{"name":"AWS ECS"},{"name":"SkyDNS"},{"name":"discodns"},{"name":"Hiera"},{"name":"Chef"},{"name":"BOSH"},{"name":"etcdctl"},{"name":"etcd-backup"},{"name":"etcd-dump"},{"name":"etcd-fs"},{"name":"etcd-browser"},{"name":"etcd-console"},{"name":"etcd-viewer"},{"name":"etcdtool"},{"name":"etcd-rest"},{"name":"etcdsh"},{"name":"etcdloadtest"},{"name":"etcd-workbench"},{"name":"Apache Celix"},{"name":"ZeroMQ"},{"name":"CoreOS"},{"name":"MySQL"},{"name":"GPG"},{"name":"CoreDNS","category":"dns"},{"name":"PostgreSQL","category":"database"},{"name":"Consul","category":"service_discovery"},{"name":"ZooKeeper","category":"coordination"}]` | `[{"name":"Oracle"},{"name":"PostgreSQL"},{"name":"MySQL"},{"name":"MariaDB"},{"name":"Percona XtraDB"},{"name":"Microsoft SQL Server"},{"name":"MongoDB"},{"name":"Cassandra"},{"name":"Google Cloud SQL"},{"name":"Grafana"},{"name":"Prometheus"},{"name":"AWS"},{"name":"Microsoft Azure"},{"name":"Google Cloud"},{"name":"Python"},{"name":"Node.js"},{"name":"Java"},{"name":"Go"},{"name":".NET"},{"name":"Datadog","native":true,"category":"monitoring"},{"name":"New Relic","native":true,"category":"monitoring"},{"name":"Azure","native":true}]` |
| language.primary | Go | C |
| license.spdx | Apache-2.0 | RSALv2 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"mac":true,"linux":true,"windows":true}` | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://etcd.io","retrievedAt":"2026-09-10T21:11:03.864Z"}` | `{"type":"hybrid","plans":[{"free":false,"name":"Essentials","features":["Single database","Index on RAM","99.99% uptime"],"description":"Single database with in-memory storage","contactSales":false,"includedLimits":{"storage":"12 GB"}},{"free":false,"name":"Flex","features":["Tiered RAM and SSD storage","Adjustable RAM ratio","99.99% uptime","Up to 80% cost savings vs RAM alone"],"description":"RAM and SSD tiered storage for cost optimization","contactSales":false,"includedLimits":{"storage":"100 GB"}},{"free":false,"name":"Pro","features":["Unlimited databases","Unlimited storage","Unlimited ops/sec","Active-Active multi-region","99.999% uptime"],"description":"Unlimited scale with active-active replication","contactSales":false}],"summary":"Free open-source software plus three cloud subscription tiers (Essentials, Flex, Pro)","currency":"USD","freeTier":true,"sourceUrl":"https://redis.io/pricing/calculator/","retrievedAt":"2026-10-05T11:03:29.738Z","billingPeriods":["month","year"]}` |
| pricing.free_tier | no | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | no |
| release.cadence_days | - | 45 |
| release.history | `[{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.7.2","date":"2026-09-22T21:22:39Z","type":"stable","version":"v3.7.2"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.15","date":"2026-09-22T21:06:14Z","type":"stable","version":"v3.6.15"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.34","date":"2026-09-22T20:50:57Z","type":"stable","version":"v3.5.34"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.7.1","date":"2026-07-23T19:37:53Z","type":"stable","version":"v3.7.1"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.14","date":"2026-07-23T19:29:31Z","type":"stable","version":"v3.6.14"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.33","date":"2026-07-23T19:12:21Z","type":"stable","version":"v3.5.33"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.7.0","date":"2026-07-08T18:26:53Z","type":"stable","version":"v3.7.0"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.13","date":"2026-07-01T20:43:27Z","type":"stable","version":"v3.6.13"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.32","date":"2026-07-01T20:32:19Z","type":"stable","version":"v3.5.32"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.7.0-rc.0","date":"2026-06-01T21:27:32Z","type":"prerelease","version":"v3.7.0-rc.0"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.12","date":"2026-06-01T20:59:07Z","type":"stable","version":"v3.6.12"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.31","date":"2026-06-01T20:46:06Z","type":"stable","version":"v3.5.31"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.4.45","date":"2026-06-01T20:35:12Z","type":"stable","version":"v3.4.45"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.7.0-beta.0","date":"2026-05-19T20:02:08Z","type":"prerelease","version":"v3.7.0-beta.0"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.11","date":"2026-05-01T18:55:08Z","type":"stable","version":"v3.6.11"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.30","date":"2026-05-01T18:46:50Z","type":"stable","version":"v3.5.30"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.4.44","date":"2026-05-01T18:38:42Z","type":"stable","version":"v3.4.44"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.10","date":"2026-04-01T18:34:55Z","type":"stable","version":"v3.6.10"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.29","date":"2026-04-01T18:29:01Z","type":"stable","version":"v3.5.29"},{"url":"https://github.com/etcd-io/etcd/releases/tag/v3.4.43","date":"2026-04-01T18:23:35Z","type":"stable","version":"v3.4.43"}]` | `[{"url":"https://github.com/redis/redis/releases/tag/8.10.2","date":"2026-09-17T15:06:56Z","type":"stable","version":"8.10.2"},{"url":"https://github.com/redis/redis/releases/tag/8.8.3","date":"2026-09-17T15:04:35Z","type":"stable","version":"8.8.3"},{"url":"https://github.com/redis/redis/releases/tag/8.6.7","date":"2026-09-17T15:01:42Z","type":"stable","version":"8.6.7"},{"url":"https://github.com/redis/redis/releases/tag/8.4.7","date":"2026-09-17T14:58:05Z","type":"stable","version":"8.4.7"},{"url":"https://github.com/redis/redis/releases/tag/8.2.10","date":"2026-09-17T14:53:52Z","type":"stable","version":"8.2.10"},{"url":"https://github.com/redis/redis/releases/tag/8.10.1","date":"2026-08-17T16:44:04Z","type":"stable","version":"8.10.1"},{"url":"https://github.com/redis/redis/releases/tag/8.8.2","date":"2026-08-17T16:41:01Z","type":"stable","version":"8.8.2"},{"url":"https://github.com/redis/redis/releases/tag/8.6.6","date":"2026-08-17T16:39:37Z","type":"stable","version":"8.6.6"},{"url":"https://github.com/redis/redis/releases/tag/8.4.6","date":"2026-08-17T16:38:05Z","type":"stable","version":"8.4.6"},{"url":"https://github.com/redis/redis/releases/tag/8.2.9","date":"2026-08-17T16:36:23Z","type":"stable","version":"8.2.9"},{"url":"https://github.com/redis/redis/releases/tag/7.4.11","date":"2026-08-17T16:33:09Z","type":"stable","version":"7.4.11"},{"url":"https://github.com/redis/redis/releases/tag/7.2.16","date":"2026-08-17T16:30:32Z","type":"stable","version":"7.2.16"},{"url":"https://github.com/redis/redis/releases/tag/6.2.24","date":"2026-08-17T16:28:20Z","type":"stable","version":"6.2.24"},{"url":"https://github.com/redis/redis/releases/tag/8.10.0","date":"2026-07-29T17:20:06Z","type":"stable","version":"8.10.0"},{"url":"https://github.com/redis/redis/releases/tag/8.8.1","date":"2026-07-23T19:30:31Z","type":"stable","version":"8.8.1"},{"url":"https://github.com/redis/redis/releases/tag/8.6.5","date":"2026-07-23T19:27:27Z","type":"stable","version":"8.6.5"},{"url":"https://github.com/redis/redis/releases/tag/8.4.5","date":"2026-07-23T19:24:29Z","type":"stable","version":"8.4.5"},{"url":"https://github.com/redis/redis/releases/tag/8.2.8","date":"2026-07-23T19:20:47Z","type":"stable","version":"8.2.8"},{"url":"https://github.com/redis/redis/releases/tag/7.4.10","date":"2026-07-23T18:01:58Z","type":"stable","version":"7.4.10"},{"url":"https://github.com/redis/redis/releases/tag/7.2.15","date":"2026-07-23T17:57:28Z","type":"stable","version":"7.2.15"}]` |
| reliability.sla_pct | - | 99.999 |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.scorecard | 6.9 | 6.8 |
| security.soc2 | - | yes |
| security.trust_center | https://etcd.io/docs/v3.4/op-guide/security/ | https://redis.io/security/notice-apache-log4j2-cve-2021-44228/ |
| security.vulnerabilities | `{"count":8,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.etcd.io%2Fetcd&per_page=100","last_12m":3,"max_severity":"HIGH"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fredis%2Fredis&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Key-Value Stores)

| Capability | etcd | Redis |
|---|:--:|:--:|
| **Storage** |  |  |
| Storage tier | Persistent | In-memory |
| Persistence | Append-only log | Append-only log |
| Data structures | Rich types | Rich types |
| **Protocol** |  |  |
| Wire protocol | gRPC | RESP (Redis) |
| **Distribution** |  |  |
| Clustering | Consensus (Raft) | Sharded |
| Consistency | Strong | Strong |
| **Ops** |  |  |
| Eviction / TTL policies | ✓ | ✓ |
| Multi-threaded | - | ✓ |
| Pub/Sub / streams | ✓ | ✓ |
| Transactions / atomic ops | - | MULTI-EXEC |
| **Deployment** |  |  |
| Deployment | Self-hosted | Managed |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Source-available |
| **Compatibility** |  |  |
| Redis API compatibility | None | Full |

*Source: vioscaleAI. Generated 2026-10-16T19:22:04.295Z. "-" = undocumented, not absent.*