Choosing workflow automation software means comparing visual builders, schedulers, durable orchestration, and deployment options without treating popularity as proof. This September 2026 list uses the supplied ToolVitals scores, health and shipping scores, descriptions, openness labels, license labels, and GitHub-star counts.
The ranking covers open/source-visible tools and orders them by ToolVitals score descending, using health and shipping for equal composite scores. GitHub stars are context only and do not determine the ordering.
Rankings
| Rank | Tool | Openness | License | Health | Shipping | GitHub Stars | Score | Status |
|---|---|---|---|---|---|---|---|---|
| 1 | n8n | Fair-code, not OSI-approved | Sustainable Use License | 99 | 99 | 202823 | 99 | 🟢 Excellent |
| 2 | Kestra | OSI-approved OSS | Apache-2.0 | 98 | 98 | 27953 | 98 | 🟢 Excellent |
| 3 | gh-aw | OSI-approved OSS | MIT | 97 | 99 | 5050 | 98 | 🟢 Excellent |
| 4 | Activepieces | OSI-approved OSS | MIT | 98 | 97 | 24107 | 97 | 🟢 Excellent |
| 5 | Prefect | OSI-approved OSS | Apache-2.0 | 98 | 97 | 23718 | 97 | 🟢 Excellent |
| 6 | ByteChef | OSI-approved OSS | Apache-2.0 | 97 | 97 | 993 | 97 | 🟢 Excellent |
| 7 | Dagu | OSI-approved OSS | GPL-3.0 | 97 | 97 | 3828 | 97 | 🟢 Excellent |
| 8 | Flyte | OSI-approved OSS | Apache-2.0 | 97 | 97 | 7355 | 97 | 🟢 Excellent |
| 9 | Hatchet | OSI-approved OSS | MIT | 97 | 97 | 7812 | 97 | 🟢 Excellent |
| 10 | PipesHub AI | OSI-approved OSS | Apache-2.0 | 97 | 97 | 3698 | 97 | 🟢 Excellent |
| 11 | Trigger.dev | OSI-approved OSS | Apache-2.0 | 97 | 97 | 16161 | 97 | 🟢 Excellent |
| 12 | Conductor | OSI-approved OSS | Apache-2.0 | 97 | 96 | 32146 | 97 | 🟢 Excellent |
| 13 | LibreSign | OSI-approved OSS | AGPL-3.0 | 97 | 96 | 798 | 97 | 🟢 Excellent |
| 14 | nodetool | OSI-approved OSS | AGPL-3.0 | 96 | 98 | 502 | 97 | 🟢 Excellent |
| 15 | Kaoto | OSI-approved OSS | Apache-2.0 | 97 | 96 | 125 | 96 | 🟢 Excellent |
| 16 | Temporal | OSI-approved OSS | MIT | 97 | 96 | 22713 | 96 | 🟢 Excellent |
| 17 | Tracecat | OSI-approved OSS | AGPL-3.0 | 97 | 96 | 3782 | 96 | 🟢 Excellent |
| 18 | Bifrost Integrations | OSI-approved OSS | AGPL-3.0 | 95 | 95 | 60 | 95 | 🟢 Excellent |
| 19 | epistola-suite | OSI-approved OSS | AGPL-3.0 | 95 | 95 | 6 | 95 | 🟢 Excellent |
| 20 | Flowwink | OSI-approved OSS | MIT | 94 | 96 | 22 | 95 | 🟢 Excellent |
| 21 | Pneumatic | OSI-approved OSS | Apache-2.0 | 94 | 94 | 315 | 94 | 🟢 Excellent |
| 22 | OpenWorkflow | OSI-approved OSS | Apache-2.0 | 93 | 95 | 1304 | 94 | 🟢 Excellent |
| 23 | Runtara | OSI-approved OSS | AGPL-3.0 | 93 | 95 | 18 | 94 | 🟢 Excellent |
| 24 | MaaPipelineEditor | OSI-approved OSS | MIT | 92 | 94 | 389 | 93 | 🟢 Excellent |
| 25 | DBOS Transact Golang | OSI-approved OSS | MIT | 93 | 91 | 819 | 92 | 🟢 Excellent |
| 26 | FlowCtl | OSI-approved OSS | Apache-2.0 | 91 | 91 | 332 | 91 | 🟢 Excellent |
| 27 | Rulego | OSI-approved OSS | Apache-2.0 | 88 | 90 | 1586 | 89 | 🟢 Excellent |
| 28 | gflow | OSI-approved OSS | MIT | 87 | 88 | 91 | 87 | 🟢 Excellent |
| 29 | Ryax | OSI-approved OSS | MPL-2.0 | 86 | 88 | 186 | 87 | 🟢 Excellent |
| 30 | Huginn | OSI-approved OSS | MIT | 87 | 85 | 49875 | 86 | 🟢 Excellent |
| 31 | Flow | OSI-approved OSS | Apache-2.0 | 85 | 85 | 136 | 85 | 🟢 Excellent |
| 32 | Flowable Engine | OSI-approved OSS | Apache-2.0 | 87 | 77 | 9501 | 83 | 🟢 Excellent |
| 33 | Node-RED | OSI-approved OSS | Apache-2.0 | 86 | 77 | 23604 | 83 | 🟢 Excellent |
| 34 | maestro | OSI-approved OSS | Apache-2.0 | 78 | 67 | 3831 | 74 | 🟢 Good |
| 35 | Velda | OSI-approved OSS | Apache-2.0 | 75 | 72 | 83 | 74 | 🟢 Good |
| 36 | FlowGram | OSI-approved OSS | MIT | 70 | 56 | 8404 | 65 | 🟢 Good |
| 37 | dgiot | OSI-approved OSS | Apache-2.0 | 67 | 59 | 4835 | 64 | 🟢 Good |
| 38 | Viewflow | OSI-approved OSS | AGPL-3.0 | 65 | 59 | 2874 | 62 | 🟢 Good |
| 39 | Lamda | OSI-approved OSS | MIT | 64 | 49 | 8258 | 58 | 🟡 Fair |
| 40 | diun | OSI-approved OSS | MIT | 56 | 36 | 4891 | 48 | 🟡 Fair |
| 41 | Ordo | OSI-approved OSS | MIT | 52 | 43 | 32 | 48 | 🟡 Fair |
| 42 | SurveyKing | OSI-approved OSS | MIT | 54 | 33 | 3995 | 46 | 🟡 Fair |
| 43 | Cenit IO | OSI-approved OSS | MIT | 50 | 39 | 502 | 46 | 🟡 Fair |
| 44 | Loopi | OSI-approved OSS | MIT | 39 | 30 | 190 | 35 | 🔴 Needs Attention |
| 45 | SymFlowBuilder | OSI-approved OSS | MIT | 39 | 16 | 28 | 30 | 🔴 Needs Attention |
| 46 | AutoForceAI | OSI-approved OSS | AGPL-3.0 | 30 | 13 | 22 | 24 | 🔴 Needs Attention |
| 47 | Integuru | OSI-approved OSS | AGPL-3.0 | 22 | 0 | 4760 | 13 | 🔴 Needs Attention |
| 48 | Adjutant | OSI-approved OSS | AGPL-3.0 | 17 | 4 | 1 | 12 | 🔴 Needs Attention |
| 49 | Infinitic | OSI-approved OSS | MIT | 16 | 5 | 362 | 12 | 🔴 Needs Attention |
| 50 | TACTIC | OSI-approved OSS | MIT | 17 | 0 | 499 | 10 | 🔴 Needs Attention |
Top 3 Highlights
n8n ranks first with a ToolVitals score of 99, plus health and shipping scores of 99. Its supplied description combines visual workflow building with custom code, native AI capabilities, self-hosting or cloud deployment, and 400+ integrations. ToolVitals labels it “Fair-code, not OSI-approved” and lists its license as “Sustainable Use License”.
Kestra ranks second with a ToolVitals score of 98 and health and shipping scores of 98. The supplied description focuses on event-driven orchestration and scheduling for mission-critical applications, making it a clear option for teams evaluating scheduled and event-triggered workflows. ToolVitals labels it “OSI-approved OSS” and lists its license as “Apache-2.0”.
gh-aw ranks third with a ToolVitals score of 98, a health score of 97, and a shipping score of 99. Its supplied description is “GitHub Agentic Workflows,” distinguishing it from the broader workflow orchestration platforms in the list. ToolVitals labels it “OSI-approved OSS” and lists its license as “MIT”.
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