The only Sanity page-builder guide you'll ever need

The only Sanity page-builder guide you'll ever need

Wake up, it's 2025 and we need to build the best page builder we possibly can, where do we start, what is the code. Can I just copy your code?

Jono
JonoLinkedInFounder

I'm going to start this article by placing a bet that you've absolutely used a page-builder of some kind before. Let me fire off some quick opinions and tell me if they resonate.

  • They're hard to maintain
  • I can never find the block I want
  • Surely this can be more efficient

Yeah, I know, that's basically most of the experiences we've heard from clients. We want to change that by putting together this blog so I can scream at developers the next time I see a disorganised mess for a page builder.

Why Sanity page builders don't suck

Organized block management

Organize page builder blocks into logical categories like 'Intro', 'Storytelling' for instant access.

Visual block previews

See exactly what each block looks like with chunky thumbnail previews before adding to your page

Real-time collaboration

Multiple team members can edit page builders simultaneously with instant change visibility

Flexible content modeling

Build custom page builder blocks that adapt to your specific content needs and workflows

Developer-friendly APIs

Power your page builders with GROQ queries and real-time APIs for custom editing experiences

Future-proof architecture

Scale from startup to enterprise with modern web technologies that grow with your business

The best opinion (my opinion)

I'm going to take a leaf out of Simeon's book, and give you my opinions on page builders, and don't worry, they're unquestionably right and not to be disputed.

Here's how you should structure your previews in page builders

Setting up previews with Sanity Studio

How does this look in code?

Well, assuming you've called the title: title and your image field imageThis is the exact way I would set up a preview inside the code.

  preview: {
    select: {
      title: 'title',
      media: 'image',
    },
    prepare(selection) {
      const {title, media} = selection
      return {
        title: title ?? 'Currently no title, set one inside this block',
        subtitle: 'Split Image',
        media: media ?? ImageIcon,
      }
    },
  },

What are those ?? about?

If you haven't seen those before, or you have seen them and you don't know what the difference is between those and || I'll let you in on a little secret that's definitely not generated from ChatGPT...

  • || is the logical OR operator, returning the right operand if the left operand is falsy.
  • ?? is the nullish coalescing operator, returning the right operand only if the left operand is null or undefined.

Use ?? to specifically check for null or undefined values, ensuring that other falsy values like 0 or '' are not considered as missing values.

Or, in other words, because this asshole told me to use them.

Some developer we let live in our head rent free from LinkedIn called Joey Clover
Joey if you're reading this, I hope you're happy

Let's start with the new stuff

Before going further, let's talk about some of the new stuff that Sanity released that makes your page builder a bit better.

Array groups

Read the docs

This lets you split your page builder blocks (arrays of blocks) into groups. It means if you want to split out Forms and Heros. You can easily do it with some basic code.

Here's how it looks in the Sanity Studio:

Showing the array groupings on light mode. Honestly who even uses light mode in this day and age

And here's the code to do that:

{
  insertMenu: {
    groups: [
      {
        name: 'intro',
        title: 'Intro',
        // Here's where your blocks go to filter by intro
        of: ['hero'],
      },
      {
        name: 'storytelling',
        title: 'Storytelling',
        // Here's where your blocks go to filter by storytelling
        of: ['byTheNumbers']
      },
      {
        name: 'upsell',
        title: 'Upsell',
        // Here's where your blocks go to filter by upsell
        of: ['testimonials', 'hero'],
      },
    ],
  },
}

Fun fact: you can have a block in more than one grouping. It's pretty cool, for example, when you want a form block in both Forms and Engagement.

Array views

Read the docs

I know what you're thinking. Yeah, the above is pretty cool, but I still don't know what the hell my page builder block looks like, and it doesn't look like a 24px by 24px icon.

Well, first of all, you'd be right. Second of all, you now have something called array views. Yes, they're everything you're asking for.

They allow you to see a whole bunch of blocks at once with thumbnails. Here's the visuals that aren't ripped straight from the docs

Here's how it looks in the Sanity Studio

Array thumbnails looking pretty darn slick - you can see what you're going to drop into the page because of the chunky thumbnail

And here's the code to do that

{
  insertMenu: {
    // You don't have to use groups, just left them in
    groups: [
      {
        name: 'intro',
        title: 'Intro',
        of: ['hero'],
      },
      {
        name: 'storytelling',
        title: 'Storytelling',
      },
      {
        name: 'upsell',
        title: 'Upsell',
        of: ['testimonials', 'hero'],
      },
    ],
    views: [
      {name: 'list'},
      // This is the important bit
      {name: 'grid', previewImageUrl: (schemaTypeName) => `/static/preview-${schemaTypeName}.png`},
      // Remember you can create a folder called 'static'
      // In the root of your Sanity folder
    ],
  },
}

Pro tip: Use the same size canvas

Before you set this up, do everybody a favour and use the same size canvas for every screenshot, or else you're going to have a monstrosity of a visual representation of a block.

A nice, simple, and free way to handle this is to create a frame inside Figma and paste the screenshot into it, ensuring they are all the same height and width.

See it in action

It's not recycling content if nobody watched the video the first time round... So here it is again, packaged into a blog. Please watch it.

Video thumbnail

Closing thoughts

I don't want to take you away from actually trying this yourself, so I implore you to stop reading this content and actually spin up Sanity and do this for your clients today. You will not believe the UX improvement from just integrating these changes above.

If, on the other hand, you can't be arsed and want somebody to "just sort it out for you," you can get in touch with the form below and we'll get you looking ship-shape in no time.

Frequently asked questions

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