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14,448 startups · 29 programs

Windmill

Active · Open-source platform to turn scripts into internal apps & workflows

WebsiteYC profile

Why it ranks

How the rank works
11signal of 100 · rising 3
  • team of 7Team size · YC's directory+4.7
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

A sum of public facts, not a judgement and not investment advice.

Competitors

AIInactiveDropbaseShared: app builder, internal tool, triggerYC W20San FranciscoStartup →Developer toolsRetoolShared: internal tool, retoolYC W17San FranciscoStartup →Developer toolsFly.ioShared: stack apps, full stack, developerYC W20ChicagoStartup →Developer toolsPortalformShared: internal tool, infrastructureYC W23AshburnStartup →AIco.devShared: stack apps, full stack, turnYC W23Startup →
Companies closest to Windmill
Company
DropbaseShared: app builder, internal tool, triggerYC W20InactiveAI, Devtools
RetoolShared: internal tool, retoolYC W17ActiveDevtools
Fly.ioShared: stack apps, full stack, developerYC W20ActiveDevtools
PortalformShared: internal tool, infrastructureYC W23ActiveDevtools
co.devShared: stack apps, full stack, turnYC W23ActiveAI, Devtools

Adjacent

Developer toolsJet AdminShared: app builder, internal tool, sourceYC W20FrankfurtStartup →AIPomeradoShared: internal tool, workflow automation, turnYC F26San FranciscoStartup →Developer toolsStackerShared: internal apps, turnYC S20LondonStartup →AIInactiveOliveShared: internal toolYC W25San FranciscoStartup →Developer toolsSvixShared: open, source, turnYC W21San FranciscoStartup →
Companies next to Windmill
Company
Jet AdminShared: app builder, internal tool, sourceYC W20ActiveDevtools
PomeradoShared: internal tool, workflow automation, turnYC F26ActiveAI, Devtools
StackerShared: internal apps, turnYC S20ActiveDevtools
OliveShared: internal toolYC W25InactiveAI
SvixShared: open, source, turnYC W21ActiveDevtools

Also from S22 in Developer tools

All of S22
Developer toolsAcquiredHyperDXOpen-source, dev-friendly observability.YC S22San FranciscoStartup →Developer toolsMedplumAPI first electronic health record (EHR) that is open sourceYC S22San FranciscoStartup →Developer toolsAcquiredPayloadDeveloper-First Headless CMS and Application FrameworkYC S22Grand RapidsStartup →Developer toolsStackupStackup helps businesses manage their crypto assets.YC S22Los AngelesStartup →Developer toolsCodeCraftersProgramming courses for experienced engineersYC S22San FranciscoStartup →Developer toolsInactiveDittofeedOpen-source customer engagement & messaging automationYC S22Los AngelesStartup →
Company
HyperDXOpen-source, dev-friendly observability.acquiredteam of 4AcquiredDevtools
MedplumAPI first electronic health record (EHR) that is open sourceteam of 20hiringActiveDevtools
PayloadDeveloper-First Headless CMS and Application Frameworkacquiredteam of 3AcquiredDevtools
StackupStackup helps businesses manage their crypto assets.team of 4hiringActiveDevtools
CodeCraftersProgramming courses for experienced engineersteam of 10ActiveDevtools
DittofeedOpen-source customer engagement & messaging automationteam of 2InactiveDevtools

About Windmill

Windmill is an open-source developer platform that turns scripts into workflows, internal tools, and full-stack apps. Write scripts in Python, TypeScript, Go, Bash, Rust, SQL - Windmill auto-generates UIs from their parameters, handles dependencies, credentials, permissions, and scheduling so you focus on business logic, not infra. Open-source alternative to Airflow, Temporal, Retool and n8n. Chain scripts into flows with branching, parallelism, retries. Build dashboards with the app builder. Trigger via cron, webhook, or UI. All-in-one runtime, editor, secret manager, and OAuth platform - enterprise-ready out of the box. Stack: Rust / TypeScript + Svelte / PostgreSQL. Self-hostable, easy to deploy, built for performance and DX.

YC batch
S22 · Summer 2022
Status, per YC
Active
Category
Developer tools
Team size
7
Location
Paris, Île-de-France, France
Checked
6h ago

YC tags: Developer Tools, SaaS, B2B, Workflow Automation, Open Source

Windmill in S22: 233 companies, 54% AI

Windmill: questions

Which YC batch was Windmill in?

Windmill was in Y Combinator's Summer 2022 batch (S22).

Is Windmill still active?

Y Combinator lists Windmill as active.

Where is Windmill based?

Windmill lists Paris, Île-de-France, France as its location on YC's directory.