# Apache Zeppelin vs Observable

| Attribute | Apache Zeppelin | Observable |
|---|---|---|
| **Vioscale score** | 48.7 (22% (low)) | 74.3 (26% (low)) |
| activity.commits_last_30d | 73 | - |
| adoption.dependent_repos | 67 | - |
| adoption.github_stars | 6,655 | - |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | Apache Zeppelin is a web-based notebook platform for interactive data analysis and team collaboration. It supports multiple programming languages and data processing frameworks including Spark and Flink, with built-in visualization and flexible deployment options. | Observable provides an interactive platform where teams explore data through code-based notebooks with real-time collaboration, visualizations, and AI-assisted analysis capabilities. Notebooks run directly in the browser and can be embedded as components or published as dashboards. |
| integrations.count | 15 | 2 |
| integrations.list | `[{"name":"Apache Spark"},{"name":"Apache Flink"},{"name":"Python"},{"name":"R"},{"name":"Scala"},{"name":"SQL"},{"name":"Spark SQL"},{"name":"Spark R"},{"name":"PySpark"},{"name":"JDBC"},{"name":"Markdown"},{"name":"Shell"},{"name":"Matplotlib"},{"name":"Conda"},{"name":"Pandas"}]` | `[{"name":"Slack"},{"name":"BigQuery"}]` |
| language.primary | Java | - |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://zeppelin.apache.org/","retrievedAt":"2026-08-19T22:48:34.244Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Notebook Free","summary":"Free","description":"Free tier with basic notebook functionality","contactSales":false},{"free":false,"name":"Notebook Pro","summary":"$10 per viewer per month","features":["Private projects and notebooks","Comment on notebooks","Workspace viewers"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"viewer","amount":10,"period":"month","currency":"USD"}],"description":"Professional workspace with viewer licensing","contactSales":false},{"free":false,"name":"Enterprise","description":"Custom enterprise solution","contactSales":true}],"summary":"Free tier available. Pro workspaces start at $10/viewer/month. Enterprise plans available on request.","currency":"USD","freeTier":true,"sourceUrl":"https://observablehq.com/release-notes/2024-05-31-new-workspace-viewer-pricing","retrievedAt":"2026-08-19T14:43:03.773Z","startingPrice":{"unit":"viewer","amount":10,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.starting_price | - | `{"amount":10,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| security.scorecard | 6.2 | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=zeppelin-vis&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (ML Notebooks)

| Capability | Apache Zeppelin | Observable |
|---|:--:|:--:|
| **Capabilities** |  |  |
| GPU tpu access | - | - |
| Realtime collaboration | - | - |
| Reactive execution | - | - |
| Diffable versioning | - | - |
| Scheduled parameterized runs | - | - |
| Notebook to app dashboard | - | - |
| AI copilot assist | - | - |
| Data warehouse connectors | - | - |
| Local or self host | - | - |
| Free tier | - | - |

*Source: Vioscale. Generated 2026-09-01T16:31:45.552Z. "-" = undocumented, not absent.*