Inngest is a developer platform designed to simplify building reliable backend systems by replacing traditional infrastructure components like queues, cron jobs, and state machines with a single abstraction: durable functions.

Instead of manually managing job queues, retries, scheduling systems, and distributed state, developers write event-driven functions that automatically handle execution reliability. These functions are triggered by events, cron schedules, or webhooks, and can include multi-step workflows that persist state across long-running processes.

A core concept in Inngest is durable execution, which ensures workflows can pause, resume, retry, and recover from failures without losing progress. This makes it suitable for complex systems such as background jobs, data pipelines, AI workflows, and multi-stage business processes.

The platform also includes advanced flow control capabilities such as concurrency limits, rate limiting, debouncing, batching, and prioritization. These allow developers to control workload behavior without building custom infrastructure.

Inngest provides built-in observability, allowing teams to inspect event streams, function runs, logs, traces, and performance metrics directly in the platform. It also includes tools like Insights for querying execution data and understanding system behavior at scale.

It is designed to work across modern deployment environments including serverless platforms, traditional servers, and edge runtimes, with SDKs for languages like TypeScript, Python, and Go.

Key features include:

• Event-driven durable functions for backend workflows
• Built-in queues, retries, scheduling, and state management
• Flow control (rate limiting, concurrency, batching, prioritization)
• Long-running and resumable workflow execution
• Observability with logs, traces, and execution analytics
• AI workflow and agent orchestration support
• Local dev server for production-parity testing

Common use cases include:

• Building background job systems
• Orchestrating multi-step APIs
• Running scheduled tasks
• Processing event streams
• Managing AI/agent workflows
• Replacing traditional queue + cron + workflow infrastructure stacks

Inngest is developed by Inngest, Inc. as a managed platform with an open-source SDK ecosystem and dev server.