---
title: "On-demand Builders are now generally available | Netlify"
description: "Realize the speed, agility and performance of a scalable, composable web architecture with Netlify. Explore the composable web platform now!"
source: "https://www.netlify.com/blog/2021/12/14/on-demand-builders-are-now-generally-available/"
last_updated: "2026-07-02T04:17:47.000Z"
---
Today, we’re announcing that On-demand Builders are generally available as a production-ready feature you can use in all of your Netlify sites!

On-demand Builders are serverless functions used to generate web content as needed that’s automatically cached on Netlify’s Edge CDN. They enable you to build pages for your site when a user visits them for the first time and then cache them at the edge for subsequent visits.

For an awesome example of On-demand Builders, check out [this repository](https://github.com/netlify/example-every-color) that demonstrates how you can use builders to cache the generation of pages specific to a color.

As part of this release, we now support an optional time to live (TTL) that will force your builders to regenerate new content after expiry. This means that, in conjunction with [the latest release of the Essential Next.js plugin](https://www.netlify.com/blog/2021/12/14/next.js-on-netlify-latest-update-introduces-complete-support-for-isr-now-with-revalidate/), On-demand Builders now fully support [Next.js Incremental Static Regeneration (ISR)](https://nextjs.org/docs/basic-features/data-fetching#incremental-static-regeneration). However, you can also leverage TTLs as part of any builders that you’ve written or generated. Check out our [latest On-demand Builders docs](https://docs.netlify.com/configure-builds/on-demand-builders/#time-to-live-ttl) for more info on TTLs.

We’re so excited to see more of you use On-demand Builders to reduce your build times and to improve the performance of function responses. If you have any questions about or suggestions for On-demand Builders, make sure to [hop over to the Netlify forums and let us know](https://answers.netlify.com/c/netlify-support/on-demand-builders/60)!

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### Tags

-   [On-demand Builders](/blog/tags/On-demand-Builders/)

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