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Comparison · Infra & APIs
GravityKit vs Windmill
A side-by-side editorial comparison of GravityKit and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.
GravityKit vs Windmill: at a glance
What is GravityKit?
GravityKit adds Google Sheets export and Elementor calendar widget — WordPress form data reaches beyond the CMS.
GravityKit is an ecosystem of Gravity Forms extensions for WordPress (GravityView, GravityCalendar, GravityMath, GravityMigrate, GravityExport). The most recent releases add a Google Sheets live export that keeps spreadsheets in sync with Gravity Forms data, a GravityCalendar widget for Elementor, and Multiple Forms unions (stacking entries from multiple forms in a single view). Weekly 'Launch Log' releases ship 3–5 improvements and fixes across the plugin suite.
What is Windmill?
Windmill is building a full AI-native workflow platform — guest app access, agent evals, dbt runtime, and AI cost tracking shipped in rapid succession.
Windmill is an open-source workflow automation and developer platform that has been adding AI capabilities at an accelerating rate. The last month brought AI agent evaluations (with dataset-based scoring and run comparison), AI usage and cost tracking per user and model, a Plan mode for AI sessions (read-only investigation posture), version history for both AI artifacts and resource values, and nested filter groups for Kafka and WebSocket triggers. The platform now spans workflow orchestration, AI-assisted script writing, and a native dbt runtime.
GravityKit vs Windmill: editorial side-by-side
GravityKit
5.0INFRA · APIS
GravityKit adds Google Sheets export and Elementor calendar widget — WordPress form data reaches beyond the CMS.
◆ Current state
GravityKit is an ecosystem of Gravity Forms extensions for WordPress (GravityView, GravityCalendar, GravityMath, GravityMigrate, GravityExport). The most recent releases add a Google Sheets live export that keeps spreadsheets in sync with Gravity Forms data, a GravityCalendar widget for Elementor, and Multiple Forms unions (stacking entries from multiple forms in a single view). Weekly 'Launch Log' releases ship 3–5 improvements and fixes across the plugin suite.
◆ Where it's heading
GravityKit is expanding the data portability and presentation options for Gravity Forms users: Google Sheets export, Elementor integration, and Multiple Forms unions all extend where form data can go and how it can be displayed. The consistent weekly cadence and security hardening releases (GravityMigrate, GravityRevisions) indicate a mature plugin ecosystem in steady maintenance mode with targeted new capabilities.
◆ Prediction
The Google Sheets export is likely to gain more granular sync controls (webhook triggers, specific column mapping). Additional page builder integrations beyond Elementor are probable given the established pattern.
Windmill
7.5INFRA · APIS
Windmill is building a full AI-native workflow platform — guest app access, agent evals, dbt runtime, and AI cost tracking shipped in rapid succession.
◆ Current state
Windmill is an open-source workflow automation and developer platform that has been adding AI capabilities at an accelerating rate. The last month brought AI agent evaluations (with dataset-based scoring and run comparison), AI usage and cost tracking per user and model, a Plan mode for AI sessions (read-only investigation posture), version history for both AI artifacts and resource values, and nested filter groups for Kafka and WebSocket triggers. The platform now spans workflow orchestration, AI-assisted script writing, and a native dbt runtime.
◆ Where it's heading
The pattern across recent releases is clear: Windmill is building the operational infrastructure around AI agents — not just the ability to run them, but the ability to measure, control, audit, and govern them. Agent evals add a testing layer; Plan mode adds a safety posture; cost tracking adds financial visibility; version history adds rollback capability. The guest app access model also introduces a new monetization dimension (4:1 guest-to-seat ratio above 100 free guests). Windmill is positioning as the AI workflow platform for teams that need enterprise-grade controls.
◆ Prediction
The eval framework (currently beta) will likely gain deeper integration with CI/CD and deployment flows. Guest access metering signals that Windmill is building toward consumption-based pricing for external-facing AI apps. Expect tighter integration between the agent evals system and the existing flow editor deployment pipeline.
Alternatives to GravityKit and Windmill
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either GravityKit or Windmill.
Honeybadger
Honeybadger pivots from error tracker to full observability layer with AI-native query and anomaly detection
Resend
Resend expands from email API to full platform with SSO, analytics, and AI-native dev tooling
Authelia
Authelia patches two access control bypass paths from canonicalization gaps.
Helm
Helm 3 ships its final minor release while Helm 4.3 eliminates multi-minute status computation delays.
Quay
Quay ships a series of SSRF fixes in mirroring and proxy cache alongside steady CVE patching across 3.10 and 3.12 branches.
See all GravityKit alternatives → · See all Windmill alternatives →
Recent activity from GravityKit and Windmill
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6d agoWindmillGuest access for apps ⚡
- 6d agoGravityKitLaunch Log: New GravityCalendar widget for Elementor, keyboard-friendly entry approval, and more
- 13d agoGravityKitLaunch Log: Faster calendar subscriptions, undo-able form restores, and security hardening
- 18d agoWindmillAI agent evals (beta) ⚡
- 18d agoWindmillAI usage and cost tracking
- 20d agoGravityKitLaunch Log: Refined conditional logic filters, choice labels in Math Summary, and WordPress 7.1 fixes
- 21d agoWindmillApplication default credentials for GCP Pub/Sub triggers
- 24d agoGravityKitAnnouncing Google Sheets export for GravityExport: spreadsheets that keep up with your forms
- 27d agoGravityKitLaunch Log: Google Sheets export, adaptive DataTables columns, and calendar sync fixes
- 28d agoWindmillPlan mode for AI sessions
- 1mo agoWindmillNested filter groups and dotted paths in trigger filters
- 1mo agoGravityKitAnnouncing unions for Multiple Forms: stack entries from many forms in one View
Frequently asked questions
What is the difference between GravityKit and Windmill?
They serve adjacent needs but don't currently overlap on shipped themes. Windmill is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is GravityKit better than Windmill?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Windmill is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to GravityKit?
Top GravityKit alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "GravityKit alternatives" section above for the current picks, or visit /alternatives/gravitykit for the full list with editorial commentary on each.
What are the best alternatives to Windmill?
Top Windmill alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Windmill alternatives" section above for the current picks, or visit /alternatives/windmill for the full list with editorial commentary on each.