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Launch HN: Unlayer (YC W22) – Add email and document builders to your app(unlayer.com)
47 points by adeelraza 12 hours ago | 33 comments

Hi HN, We’re Adeel and Umair, co-founders of Unlayer (https://unlayer.com/). We let you add content creation to your applications without having to build an entire editor, renderer, template, and export stack yourself. Unlayer lets you create emails, web pages, and documents inside your app, in three different ways: in code, visually, or with AI.

Here’s a demo: https://www.youtube.com/watch?v=0HsDtNkdMpM.

We started with an embeddable email editor because a lot of products eventually need one: CRMs, marketing tools, customer engagement platforms, marketplaces, internal tools, and vertical SaaS apps all run into this at some point. At first, it sounds like a small feature: "just" add a drag and drop editor. In practice, it turns into a big pain. You end up dealing with email rendering, Outlook quirks, responsive layouts, templates, merge tags, image uploads, exports, permissions, localization, versioning, and a long tail of edge cases that have nothing to do with your core product

Over time, we saw the same problem beyond email. Apps also need landing pages, invoices, proposals, reports, contracts, and PDFs. Some of this content is best created visually by end users. Some of it is better generated in code by developers. Increasingly, some of it is also generated by AI agents. Many teams eventually need all three workflows. That is the direction we have been working toward with Unlayer.

There are three parts we are showing today:

(1) Unlayer Elements. This is our open-source React component library for creating emails, pages, and documents in code (repo: https://github.com/unlayer/elements, more at https://unlayer.com/elements). Instead of hand-writing raw HTML templates, developers can compose content using React components, reuse sections like headers, footers, CTAs, invoice rows, and branded blocks, keep templates in Git, and render them into production output.

One newer use case we are seeing is AI-assisted content creation. If an AI agent is asked to create an email, invoice, report, or landing page, the output is usually raw HTML or markdown that becomes hard to maintain. With Elements, the agent can generate structured React components instead. A developer can review the result, refactor it, keep it in Git, and still pass the design into a visual builder later if someone needs to edit it.

(2) Visual Builder. This is the drag and drop editor (repo: https://github.com/unlayer/react-email-editor, more at https://unlayer.com/email-builder) that can be embedded inside an app so non-technical users can create or edit content. In the demo, we show the email builder and the AI assistant inside the builder. The goal is not to replace the developer workflow, but to connect it with a visual workflow when marketers, admins, customers, or internal teams need to make changes themselves.

(3) Document Builder. This is for structured documents such as proposals, reports, invoices, contracts, and PDFs. We have seen a lot of teams build separate systems for email templates, web pages, and document generation, even though the underlying primitives are similar: layout, content blocks, variables, assets, preview, export, and permissions. More: https://unlayer.com/document-builder

The technical challenge is making these workflows share a common foundation. Developers should be able to build templates in code when that makes sense. End users should be able to edit visually when that makes sense. AI agents should be able to generate structured content instead of unmaintainable blobs. The final output should still be usable by the host application.

We make money by selling hosted builder, template, export, and platform features to companies embedding this into their products. Elements is open source. The commercial product is the broader hosted platform around builders, collaboration, storage, exports, and production use cases.

We were part of W22, so this is a late Launch HN. At the time, Unlayer was an embeddable email editor, and we did not think we had the right broader story for HN yet. Since then, the product has expanded into a more general content creation layer for products, including emails, pages, documents, APIs, open-source developer projects, and AI-assisted workflows. That felt like a better moment to bring it to HN and ask for feedback.

We'd really appreciate thoughts from HN. This is one of those areas where a lot of people have strong opinions because they’ve been burned by editors, email HTML, document editing, or “simple” content workflows before. We'd love to hear what resonates, what sounds wrong, and what you think we should be thinking harder about!

Natalia724 an hour ago | parent | next [-]

I think the key issue is not whether an LLM can make a 10-minute demo, but who maintains all the edge cases afterward: template state, email-safe HTML, export, permissions, custom blocks, and previews. Which part is usually the hardest for customers to integrate today?

mandymoorefan 9 hours ago | parent | prev | next [-]

Marketing site feedback - Use of the primary color in the checkbox is confusing at a glance. I see a red like color and think "Oh they don't support s3"

https://unlayer.com/pricing

orliesaurus 11 hours ago | parent | prev | next [-]

Congrats on your late Launch HN. Everyone's going to ask this question but, in a world of AI/LLMs, why wouldn't I just build it myself in 10 min

adeelraza 11 hours ago | parent | next [-]

Totally fair. You can build the first 10-minute demo with an LLM now.

The hard part is usually what comes after: editable state, templates, email-safe HTML, PDF/export pipelines, assets, permissions, custom blocks, previews, and all the rendering edge cases that show up once real users depend on it.

AI also makes structure more important, not less. That’s why we launched Unlayer Elements: instead of having an LLM generate a static blob of HTML, it can target structured components that map back into an editable email, web page or document.

So I'd use AI to prototype it. I'd use Unlayer when that content layer becomes production infrastructure you don't want to maintain yourself.

jvwww 3 hours ago | parent [-]

Really? You couldn't write this message yourself and had to ask an LLM. At least make it less obvious.

all2 3 hours ago | parent [-]

If you spend enough time with an LLM and aren't paying attention, you'll pick up on its mannerisms. I did this awhile ago (the "its not this, its that" thing) and someone here called me on it. After that callout, I've tried to be more aware of how much of that stuff leaches into my head and out into text.

jvwww 3 hours ago | parent [-]

While that may be true, in this instance the whole thing is 100% AI generated and this is not someone who has just adopted the mannerisms of AI.

For instance, the usage of "Totally fair" and "The hard part", the usage of colons, which humans would use far less frequently, using the rule of threes (editable email, web page or document), etc.

Anyway, it's just lazy. This is someone trying to sell their product. They should be able to speak about it without using the exact response from an AI

christoff12 2 hours ago | parent [-]

How would we rate this revised version on a scale from 1-10?

"""

Totally fair. You can build the first 10-minute demo with an LLM now.

The hard part is usually what comes after. You need editable state, templates, and email-safe HTML. Then come export pipelines, custom blocks, permissions, and all the rendering edge cases that show up with real usage.

AI makes structure more important, not less. That’s why we launched Unlayer Elements. Instead of having an LLM generate a static blob of HTML, it can target structured components that map back into an editable email, web page, or document.

So I'd use AI to prototype it. I'd use Unlayer when that content layer becomes production infrastructure you don't want to maintain yourself.

"""

I made a deslopper[1] tool based on a new skill[2] I saw on twitter earlier. It's still a little smelly imo, but better.

---

[1] https://deslop.btst.workers.dev

[2] https://github.com/petergyang/no-ai-slop

jvwww 21 minutes ago | parent | next [-]

To be blunt, I would rate it a 1, a 0 if I could. I would stop reading after the third sentence. FWIW, humanizers do not work. Can they make AI text sound better - yes, but only mildly. Also, they won't trick good ai detectors, and the resulting text is still cumbersome to read.

This is what I got first time with a humanizer I built, still sounds terrible:

"Yeah, an LLM gets you the 10-minute demo now.

The expensive part is everything after, once real users depend on it. You end up maintaining editable state, templates, email-safe HTML, export pipelines, asset handling, permissions, custom blocks, and live previews. That takes months.

Structure makes AI output usable here, and it gets more important as the workflow gets automated. That's the idea behind Unlayer Elements. The LLM generates real editable components that map back into the actual email or page, and you keep editing what it makes like anything else in the tool.

I'd prototype with the LLM. I'd bring in Unlayer once that content layer becomes real infrastructure you don't want to own yourself."

all2 an hour ago | parent | prev [-]

My version, off-the-cuff:

""" Making a demo that does some things is easy. Making a demo that does all the things is hard.

We took a lot of time to make this product polished. We nailed down a lot of UX gotchas and a lot of bugs that come from poorly written back-end code.

If you don't need the polish, then a demo is more than sufficient. We built this for those who just want to ship, not fight with their agent about tech stack stuff. """

greenhat76 11 hours ago | parent | prev | next [-]

I see this question a lot. Not associated with OP but most companies don't want to maintain a bunch of vibed up apps they don't understand.

I work outside of SV in the southeast and most businesses know AI is being used for products they use but they want experts in that field behind that.

adeelraza 11 hours ago | parent [-]

totally agree!

leftnode 9 hours ago | parent | prev [-]

Not the OP, nor do I have any relationship to them, but I've had to build or maintain plenty of these in my time and sure, an LLM can knock out a basic one easily, but there are so many edge cases that need to be accounted for that it gets complex quickly.

Congrats on the launch - this looks like a genuinely useful tool. I look forward to checking it out.

adeelraza 8 hours ago | parent [-]

Exactly. You realize that after going through the whole process.

edc88 9 hours ago | parent | prev | next [-]

Congrats on the launch! Elements seems really useful and practical, what's the response been from builders so far?

adeelraza 9 hours ago | parent [-]

We’re seeing really good momentum with our open source projects. React email editor and elements.

clickety_clack 8 hours ago | parent | prev | next [-]

If this can fully replace something like postmark plus do documents it could be very interesting. I might try it out in a year or so if it’s still around.

adeelraza 8 hours ago | parent [-]

We will be around. Have been for 5 years :)

clickety_clack 2 hours ago | parent [-]

Ah, it’s real, battle tested software then. I’ll check it out!

dbbk 4 hours ago | parent | prev | next [-]

Vibe coded website that looks like it was one-shotted in 5 minutes. Doesn't even work on mobile, the copy wraps off the screen. How can we take you seriously?

m4rkuskk 4 hours ago | parent [-]

I had to close the page after 5 seconds, seeing the AI slop.

iAMkenough 11 hours ago | parent | prev | next [-]

As a content creator, this intrigued me until I saw the AI-generated overview video front and center on the homepage. The subtext communicates that the product was designed for fake people standing in front of large fake touchscreens dragging fake elements around.

adeelraza 11 hours ago | parent [-]

Fair critique on the video :') We’re working on a studio-recorded version, but didn’t want to delay the launch, so we hacked this together as the script/placeholder for now. The demo is completely, 100% recorded in blood and flesh of a human: https://www.youtube.com/watch?v=0HsDtNkdMpM

iAMkenough 11 hours ago | parent [-]

hell yeah that’s what I was looking for

0xnyn 9 hours ago | parent | prev | next [-]

Was ready to try this until I saw the launch video. It's pure AI slop.

If that's the first impression you're giving, you're underselling what looks like a legitimately useful product :(

adeelraza 9 hours ago | parent [-]

Fair critique on the video :') We’re working on a studio-recorded version, but didn’t want to delay the launch, so we hacked this together as the script/placeholder for now. But this is our launch video, completely, 100% recorded in blood and flesh of a human: https://www.youtube.com/watch?v=0HsDtNkdMpM

mchusma 9 hours ago | parent | next [-]

My 2 cents, all these high level videos kind of suck, even the professional ones, when they don’t show the product. Even videos I produce for this purpose! I don’t think this is that bad. I’ve seen worse.

0xnyn 9 hours ago | parent | prev [-]

haha, fair enough 03:42 does the product justice :)

themanmaran 3 hours ago | parent | prev | next [-]

FYI we've built this internally and it was a pain, so I was excited to check out what you've built to see if it was a good fit for us.

But your landing page + video was just slop city. Removes 100% of credibility for me.

I know the advice is launch early and often, but honestly I would just point people to the github until you have something better.

cyberax 10 hours ago | parent | prev [-]

I was interested for a few seconds, until I saw that it's a SaaS.

Sorry, but that's a no-go at this point.

adeelraza 10 hours ago | parent [-]

Fair :) We do have open-source pieces (Unlayer Elements, React Email Editor, AI Skills), but the hosted builder itself is commercial.

hokage-at-leaf 10 hours ago | parent | next [-]

Just went through open-source pieces. Looking good.

cyberax 8 hours ago | parent | prev [-]

Just provide a downloadable version. Your server side should be just a glorified templating engine and a DB from consumers' point of view.

Charge for the local version, of course.