Workflow automation tools now cover a wide range of jobs, from visual app and agent builders to orchestration, browser automation, webhook delivery, and durable background execution. This list uses ToolVitals data for May 2026 and stays within the provided scores and descriptions.

The ranking puts ToolVitals score first, then uses GitHub stars as the secondary popularity signal when scores are tied. That means the order reflects overall health and shipping quality before community size.

Rankings

RankToolHealthShippingGitHub StarsScoreStatus
1n8n10010018588494🟢 Excellent
2Sim1001002788094🟢 Excellent
3Kestra951002676494🟢 Excellent
4Prefect1001002226094🟢 Excellent
5Activepieces1001002194694🟢 Excellent
6Skyvern1001002140194🟢 Excellent
7Trigger.dev1001001469294🟢 Excellent
8Hatchet97100700394🟢 Excellent
9Unstract97100655594🟢 Excellent
10Inngest97100526994🟢 Excellent
11Camunda92100409294🟢 Excellent
12Dagu97100333394🟢 Excellent
13Outpost8910094394🟢 Excellent
14Giselle8810051993🟢 Excellent
15Conductor951003171090🟢 Excellent
16certd92100464490🟢 Excellent
17arkade86100457590🟢 Excellent
18OpenOps9588101990🟢 Excellent
19Gobii8910041390🟢 Excellent
20Node-RED91802306486🟢 Excellent
21LibreSign8910076086🟢 Excellent
22Runmat8982086🟢 Excellent
23DBOS Transact Golang9270082🟢 Excellent
24career-ops88723999281🟢 Excellent
25Fastlane87724145080🟢 Excellent
26OpenGTM8670079🟢 Good
27SuggestArr8780112178🟢 Good
28OpenWorkflow8570078🟢 Good
29Loopi817215977🟢 Good
30FlowGram8072797476🟢 Good
31Hook08553140871🟢 Good
32Pneumatic796228971🟢 Good
33Flow-Like8058070🟢 Good
34vm08055069🟢 Good
35XActions7955068🟢 Good
36Dryade7356965🟢 Good
37short-video-factory6556387661🟢 Good
38ByteChef763075255🟡 Fair
39OpenSail763046555🟡 Fair
40Lamda5947775854🟡 Fair
41OpenAccountants73304354🟡 Fair
42Ordo73302654🟡 Fair
43Buildkite Agent7824054🟡 Fair
44RoboCorp7524052🟡 Fair
45Flowwink5447551🟡 Fair
46Pipedream8301128246🟡 Fair
47Huginn7704918842🟡 Fair
48agents7603450942🟡 Fair
49OpenRPA730293540🟡 Fair
50Rulego730149640🟡 Fair

Top 3 Highlights

n8n leads the list with a ToolVitals score of 94 and 185,884 GitHub stars. It stands out for combining visual building with custom code, self-host or cloud deployment, native AI capabilities, and 400+ integrations.

Sim ties n8n on ToolVitals score at 94 and has 27,880 GitHub stars. Its focus is narrower and more agent-centric: build, deploy, and orchestrate AI agents as the central intelligence layer for an AI workforce.

Kestra also scores 94 and has 26,764 GitHub stars. It is positioned as an event-driven orchestration and scheduling platform for mission-critical applications, which puts it squarely in the durable workflow camp.

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