# KairosDB vs VictoriaMetrics

**Leader by Vioscale score:** VictoriaMetrics

| Attribute | KairosDB | VictoriaMetrics |
|---|---|---|
| **Vioscale score** | 25.3 (56% (medium)) | 45.7 (56% (medium)) |
| activity.commits_last_30d | 0 | 97 |
| adoption.dependent_repos | 32 | 25 |
| adoption.github_stars | 1,762 | 17,596 |
| adoption.package_downloads_weekly | 9 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | Open-source time series database that leverages Cassandra for storage, providing REST and Graphite protocol support for data ingestion and retrieval, with built-in aggregation functions and extensible architecture via plugins. | Open source time series database optimized for high-cardinality metrics and logs, with both self-hosted and cloud deployment options. |
| features.capabilities | `{"clustering":"distributed","data_model":"metrics","deployment":"self_hosted","downsampling":"continuous_aggregates","ingest_model":"push","licence_class":"source_available","retention_ttl":"manual","query_language":"REST API, Graphite protocol","replication_ha":true,"high_cardinality":"strong","sql_compatibility":"non_sql"}` | `{"clustering":"distributed","data_model":"both","deployment":"self_hosted","downsampling":"continuous_aggregates","ingest_model":"both","licence_class":"permissive_oss","query_language":"MetricsQL (metrics), LogsQL (logs)","high_cardinality":"strong","sql_compatibility":"non_sql","prometheus_remote_write":true}` |
| integrations.count | 3 | 10 |
| integrations.list | `[{"name":"Cassandra"},{"name":"Graphite"},{"name":"Telnet"}]` | `[{"name":"Prometheus"},{"name":"Logstash"},{"name":"Fluentbit"},{"name":"Promtail"},{"name":"Elasticsearch"},{"name":"Loki"},{"name":"Grafana"},{"name":"OpenLIT"},{"name":"S3"},{"name":"GCS"}]` |
| language.primary | Java | Go |
| license.spdx | Apache-2.0 | Apache-2.0 |
| market.availability | - | `{"hqCountry":"UA","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://kairosdb.github.io/","retrievedAt":"2026-08-13T23:03:34.808Z"}` | `{"type":"hybrid","summary":"Prepaid yearly credits option with Stripe and AWS Marketplace fallback. One-month free trial.","currency":"USD","freeTier":false,"sourceUrl":"https://victoriametrics.com/blog/not-all-telemetry-deserves-premium-pricing/","retrievedAt":"2026-08-13T17:01:46.780Z","freeTrialDays":30,"billingPeriods":["month","year"]}` |
| pricing.free_tier | - | no |
| pricing.model | open_source | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | - | yes |
| release.cadence_days | 92 | - |
| release.history | `[{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.3.0","date":"2021-08-09T04:31:37Z","type":"stable","version":"v1.3.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.2","date":"2018-11-10T04:04:05Z","type":"stable","version":"v1.2.2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.3.0-beta1","date":"2018-04-14T04:43:02Z","type":"prerelease","version":"v1.3.0-beta1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.1","date":"2018-03-31T19:07:29Z","type":"stable","version":"v1.2.1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.0","date":"2018-02-01T14:54:51Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.3","date":"2017-01-04T00:24:16Z","type":"stable","version":"v1.1.3"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.2","date":"2016-09-08T04:29:39Z","type":"stable","version":"v1.1.2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.1","date":"2015-12-08T03:09:45Z","type":"stable","version":"v1.1.1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.0","date":"2015-11-05T23:22:46Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.0.0","date":"2015-06-05T05:08:49Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.5beta2","date":"2015-04-03T13:25:15Z","type":"prerelease","version":"v0.9.5beta2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.5beta1","date":"2015-01-26T20:29:20Z","type":"prerelease","version":"v0.9.5beta1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.4","date":"2014-07-07T21:30:43Z","type":"stable","version":"v0.9.4"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.3","date":"2014-06-18T16:10:41Z","type":"stable","version":"v0.9.3"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.2","date":"2014-06-18T16:51:02Z","type":"stable","version":"v0.9.2"}]` | `[{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.150.0","date":"2026-08-17T09:53:36Z","type":"stable","version":"v1.150.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.148.1","date":"2026-08-05T12:38:42Z","type":"stable","version":"v1.148.1"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.15","date":"2026-08-05T12:38:49Z","type":"stable","version":"v1.136.15"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.149.0","date":"2026-08-05T12:38:55Z","type":"stable","version":"v1.149.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.14","date":"2026-07-20T11:02:10Z","type":"stable","version":"v1.136.14"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.27","date":"2026-07-20T11:02:19Z","type":"stable","version":"v1.122.27"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.148.2","date":"2026-08-17T09:53:24Z","type":"stable","version":"v1.148.2"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.148.0","date":"2026-07-20T11:02:29Z","type":"stable","version":"v1.148.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0","date":"2026-07-06T14:08:36Z","type":"stable","version":"v1.147.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.13","date":"2026-07-06T14:08:20Z","type":"stable","version":"v1.136.13"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.26","date":"2026-07-06T14:08:31Z","type":"stable","version":"v1.122.26"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.12","date":"2026-06-22T11:09:36Z","type":"stable","version":"v1.136.12"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.25","date":"2026-06-22T11:09:43Z","type":"stable","version":"v1.122.25"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.146.0","date":"2026-06-22T11:09:47Z","type":"stable","version":"v1.146.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.11","date":"2026-06-08T10:53:56Z","type":"stable","version":"v1.136.11"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.24","date":"2026-06-08T10:54:03Z","type":"stable","version":"v1.122.24"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.145.0","date":"2026-06-08T10:54:11Z","type":"stable","version":"v1.145.0"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.10","date":"2026-05-25T11:33:49Z","type":"stable","version":"v1.136.10"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.23","date":"2026-05-25T11:34:36Z","type":"stable","version":"v1.122.23"},{"url":"https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.144.0","date":"2026-05-25T11:34:47Z","type":"stable","version":"v1.144.0"}]` |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.iso27001 | - | yes |
| security.scorecard | 3.4 | 6.2 |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.kairosdb%3Akairosdb&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FVictoriaMetrics%2FVictoriaMetrics&per_page=100","last_12m":1,"max_severity":"LOW"}` |

## Capabilities (Time-Series Databases)

| Capability | KairosDB | VictoriaMetrics |
|---|:--:|:--:|
| **Query** |  |  |
| Query language (SQL / PromQL / InfluxQL-Flux / Graphite) | REST API, Graphite protocol | MetricsQL (metrics), LogsQL (logs) |
| SQL compatibility | Non-SQL | Non-SQL |
| **Ingest** |  |  |
| Ingest model | Push | Both |
| **Model** |  |  |
| Data model | Metrics (labels/tags) | Both |
| **Lifecycle** |  |  |
| Downsampling / rollups | Continuous aggregates | Continuous aggregates |
| Retention / TTL | Manual | - |
| **Storage** |  |  |
| Compression (columnar / delta / Gorilla) | - | - |
| **Performance** |  |  |
| High-cardinality handling | Strong | Strong |
| **Scale** |  |  |
| Clustering / horizontal scale | Distributed / sharded | Distributed / sharded |
| Replication / HA | ✓ | - |
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| **Interop** |  |  |
| Prometheus remote-write compatible | - | ✓ |
| **Licensing** |  |  |
| Licence class | Source-available | Permissive OSS |

*Source: Vioscale. Generated 2026-09-01T15:15:15.405Z. "-" = undocumented, not absent.*