Hatchet vs Windmill: Which Is Better in 2026?

Hatchet is a modern, open-source background task queue and workflow engine that helps developers run reliable, distributed background jobs and orchestrate complex workflows at scale. Almost every serious application needs to do work outside the request-response cycle — sending emails, processing data, calling external services, running AI tasks, handling long-running operations — and doing this reliably is harder than it looks. Hatchet provides a robust, developer-friendly system for defining, running and monitoring this background work without building fragile queue infrastructure yourself.

The platform lets you define tasks and multi-step workflows in code, then handles the hard parts of executing them dependably: queuing, scheduling, retries, concurrency control, error handling, and observability into what's running and what failed. It's built for reliability and scale, so jobs don't silently disappear and you have clear visibility into your background processing — addressing common pain points with ad-hoc solutions built on raw queues, where retries, monitoring and durability are often afterthoughts that cause production headaches.

Because Hatchet is open source, teams can self-host it for full control, privacy and cost efficiency, while a cloud offering provides convenience for those who prefer it. It supports modern needs like durable execution for long-running and AI-related workflows, fan-out and orchestration patterns, and integrations with common languages and frameworks. This makes it appealing to engineering teams that need dependable background processing and workflow orchestration but want something more capable and observable than rolling their own, and more flexible or self-hostable than fully closed alternatives. As applications increasingly rely on background tasks and complex, long-running workflows — especially with AI in the mix — a solid task queue and workflow engine is foundational infrastructure. For developers who want reliable, scalable, observable background jobs and workflows, with the freedom of open source, Hatchet offers a powerful and well-designed solution.

Windmill is an open-source developer platform that turns scripts into production-grade workflows, scheduled jobs, APIs and internal tools — combining the flexibility of code with the convenience of a low-code platform. It's aimed at developers and technical teams who want to automate processes and build internal applications without the limitations of pure no-code tools or the overhead of building everything from scratch. You write logic in real languages (Python, TypeScript, Go, Bash, SQL and more), and Windmill handles turning that into scalable, reliable automation.

The platform's versatility is its strength. From individual scripts, Windmill lets you build multi-step workflows with a visual flow editor, schedule jobs with cron, expose logic as APIs and webhooks, and create internal app UIs and admin tools on top of your code. This means a single platform can replace a patchwork of automation tools, internal tooling frameworks and job schedulers, all while keeping your business logic in maintainable, version-controllable code rather than locked inside a proprietary visual builder. It handles execution, dependencies, secrets, permissions and observability so you don't have to.

Being open source, Windmill can be self-hosted for full control, privacy and cost efficiency — appealing strongly to teams that want to own their automation infrastructure — with a cloud option available too. It's designed for performance and scale, and supports collaboration so teams can build and share scripts, flows and apps. This makes it a powerful fit for engineering, data and operations teams that need to automate workflows, run scheduled jobs, and build internal tools quickly while retaining the power and maintainability of code. For developers who find no-code automation too limiting but don't want to build and operate their own automation stack from zero, Windmill offers a flexible, open and genuinely powerful platform that bridges the gap.