They're bedazzled by a little bit of marketing flair.
Generally I find production-ready images have more synergy and tend to be web-scale. Often they're built from the ground up for AI & are blazing fast, at scale, and empower your team whilst unlocking new possibilities. As my sibling comment suggests, being cloud-native is a crucial factor too.
I’m afraid out of all the waiting strategies available in Puppeteer/Playwright, waiting a fixed period is the worst possible. Maybe consider exposing the proper waiting strategies, load/domcontentloaded/networkidle, maybe even the more fine-grained ones https://playwright.dev/docs/actionability
It's nice looking for sure but much more complex than using `wkhtmltox` with `pngquant`, `optipng` and/or ImageMagick `convert` locally - esp. since the learning curve seems to be about equivalent.
Yeah, I thought that as well. So I was wondering if that's some kind of a joke, or maybe modern html is so fucked up that all usual solutions became obsolete since the last time I did that.
Alternatively, open devtools, press ctrl+shift+p (or cmd+shift+p on a mac) to open the command palette, search for 'screenshot' and choose 'Capture full size screenshot' to do the same thing on your browser. There's 'area screenshot' for selecting an area, 'screenshot' for the viewport', and even 'node screenshot' for capturing the selected DOM node.
It certainly does, that's why it's been a common dev tool for a bit over 20 years. I'm not really sure what the point of OP making it a web app is, though.
Ah haha. I love this conversation of trying to find a product market fit in public.
What if the input to the JavaScript (mermaid in this case) is not trusted to run on the end client machines but by running untrusted input on a sandbox (this service, or self hosted idk) is somehow acceptable and the output a blob of an image is acceptable to display on the actual client machines.
Takes the planets to align just right and need us to squint just enough but I think we can find something if we look hard enough.
But then mermaid can simply output PNG so you could run it as a worker... Thinking...
I’ve been doing this manually by having a static development-only route on my website and taking a “node screenshot” using the Chrome developer tools. This is definitely a better way, well done!
that "Not MCP" is so refreshing it makes me laugh out loud
it's literally waht i've been saying all along when I came across mcp "why can't i just give agent a prompt and it will run the rest api calls for me"
there's still some MCPs which makes sense but we have it for literally everything when just a prompt will do the job!
now on the topic of html2png i do wonder is this like the self-hostable version on github https://github.com/maranemil/HTML2Png where they use canvas? or is this something else ?
This is a great idea. I can’t believe I didn’t think of this, given I generate and screenshot so many “poster images” in html just like this. Haven’t played around a ton but seems intuitive. Nice work!
I thought webp would be better for this and checked again just to be sure, and yes, it would be better for this. WebP is quite well supported, albeit not as well supported as png, and it can have significantly smaller file sizes for the same lossless image as png.
Why? I assume the intention is to show these images on a webpage somewhere. WebP is well-supported by browsers and can store lossless images at better compression ratios than PNG, so why not use it? I don't think using a lossy format like JPEG makes much sense. JPEG is a fine format for photos, but for HTML content rendered as an image I assume most people would want a lossless format so you don't get artifacts.
Any similar AI based services/agents that can take images/creative assets (eg Figma, Sketch, Adobe PS, etc files) and create production-ready emails and landing pages in HTML?
Sharing in case anyone isn't familiar with this built-in capability:
google-chrome --headless --screenshot=my_screenshot.png https://www.example.com
Congrats on launching, beautiful design.
I'm not sure of what "production ready" is supposed to mean here, but the demo image is not optimized, `optipng` command decreases its size by 53.21%.
also don't ignore webp and avif ... those can really do wonders.
The bots using these images apply their own compression anyway.
Thank you. Can add png compression too right.
“Free”?
What’s the catch, or how I can I be sure it will still be around in 3 months?
No snark, genuinely curious as I would use this if I could count on it.
This must be the hardest way to create an image online ever invented.
What differentiates production-ready images from regular images?
They're bedazzled by a little bit of marketing flair.
Generally I find production-ready images have more synergy and tend to be web-scale. Often they're built from the ground up for AI & are blazing fast, at scale, and empower your team whilst unlocking new possibilities. As my sibling comment suggests, being cloud-native is a crucial factor too.
If I need more flair can I embed the image in a new html page and then create another image from that?
Downvoted for not starting with "Great question!" /s
It probably means that the text was generated by an AI.
Claude Code loves to say that everything is production ready, even if it doesn't quite compile or pass automated tests yet.
They are cloud-native, of course.
Do they support also DeFi or Blockchain then?
Yes, and AI
++1 :-))
good one!!!
Is this post a joke?
It's not an image—it's an image on the edge.
No cruft. No legacy formats.
Just buttery smooth production readiness.
But are they Blazing Fast (rocket ship emoji)? Are they vibe ready?
Thanks ChatGPT
> buttery smooth
But buttery bloated if the images don't run OptiPNG before exporting.
I’m afraid out of all the waiting strategies available in Puppeteer/Playwright, waiting a fixed period is the worst possible. Maybe consider exposing the proper waiting strategies, load/domcontentloaded/networkidle, maybe even the more fine-grained ones https://playwright.dev/docs/actionability
I did some tests and it didn't seem like a fixed wait, when I kept making network requests the render timed out entirely.
I made the comment based on the delay parameter (“Wait time in ms.”) in the API. I didn’t test so don’t know what the default behavior is.
It's nice looking for sure but much more complex than using `wkhtmltox` with `pngquant`, `optipng` and/or ImageMagick `convert` locally - esp. since the learning curve seems to be about equivalent.
Yeah, I thought that as well. So I was wondering if that's some kind of a joke, or maybe modern html is so fucked up that all usual solutions became obsolete since the last time I did that.
Won't you need to install extra libraries for these?
What is the use case for requiring this?
Dynamic og:image generator could be a use case.
Think of the GitHub thumbnails where the PR number changes constantly and has to be reflected on the image preview
This looks interesting though niche -- am yet to think of a compelling use case.
I am sure @simonw has some ideas :) -- he recently blogged about HTML tools which is also one or my favorite use cases for LLMs.
Maybe similar to SVG generation, this could be a more powerful / flexible way to generate complex images / screen mockups and the like on-the-fly.
PS: How do the economics work -- how is this free to use?
PS2: The live HTML editor seems buggy. Cursor is off by one position and messes up editing. (chrome on windows)
Alternatively, open devtools, press ctrl+shift+p (or cmd+shift+p on a mac) to open the command palette, search for 'screenshot' and choose 'Capture full size screenshot' to do the same thing on your browser. There's 'area screenshot' for selecting an area, 'screenshot' for the viewport', and even 'node screenshot' for capturing the selected DOM node.
Yeah and you can also take a picture with your phone. Or draw with pencil and paper.
I just take pictures with my instant polaroid
I thought this was satire. Usually you want to go from image to HTML, not the other way around. I suppose it does have its uses, though.
So why comment?
It certainly does, that's why it's been a common dev tool for a bit over 20 years. I'm not really sure what the point of OP making it a web app is, though.
This is cool! One use case is generating a Mermaid diagram as an image. For example, you can use the following HTML[^1]:
Then html2png.dev will serve you: [^1]: https://mermaid.js.org/config/usage.html#simple-full-exampleWhy wouldn’t you just use Mermaid to generate the PNG directly?
One reason I could think of: Fewer dependencies that need integration
By introducing a dependency on a third-party service with no SLA? This seems to make the dependency situation worse.
Ah haha. I love this conversation of trying to find a product market fit in public.
What if the input to the JavaScript (mermaid in this case) is not trusted to run on the end client machines but by running untrusted input on a sandbox (this service, or self hosted idk) is somehow acceptable and the output a blob of an image is acceptable to display on the actual client machines.
Takes the planets to align just right and need us to squint just enough but I think we can find something if we look hard enough.
But then mermaid can simply output PNG so you could run it as a worker... Thinking...
Very cool. Is there an option to self-host? This seems like it could be a cool agent skill.
HTML to PNG:
Also works great for HTML to PDF:Playwright behind a web server?
well, you can create an image that reports the internal, this is what i got:
I’ve been doing this manually by having a static development-only route on my website and taking a “node screenshot” using the Chrome developer tools. This is definitely a better way, well done!
that "Not MCP" is so refreshing it makes me laugh out loud
it's literally waht i've been saying all along when I came across mcp "why can't i just give agent a prompt and it will run the rest api calls for me"
there's still some MCPs which makes sense but we have it for literally everything when just a prompt will do the job!
now on the topic of html2png i do wonder is this like the self-hostable version on github https://github.com/maranemil/HTML2Png where they use canvas? or is this something else ?
This is a great idea. I can’t believe I didn’t think of this, given I generate and screenshot so many “poster images” in html just like this. Haven’t played around a ton but seems intuitive. Nice work!
Nice! It definitely makes you wonder when is MCP actually needed vs just giving the LLM API calls to work with.
Maybe webp is a better target than png?
No, because their domain is png /s
I thought webp would be better for this and checked again just to be sure, and yes, it would be better for this. WebP is quite well supported, albeit not as well supported as png, and it can have significantly smaller file sizes for the same lossless image as png.
It's not. JPG, I could live with but please not webp.
Why? I assume the intention is to show these images on a webpage somewhere. WebP is well-supported by browsers and can store lossless images at better compression ratios than PNG, so why not use it? I don't think using a lossy format like JPEG makes much sense. JPEG is a fine format for photos, but for HTML content rendered as an image I assume most people would want a lossless format so you don't get artifacts.
Because it's impossible to use in other tools. Only browsers get it. But I agree about lossy images for text.
Definitely should be WebP.
Love the simplicity and “Not MCP” callout (:
Not that it matters, but curious what percentage of this service was “vibe-coded”?
Any similar AI based services/agents that can take images/creative assets (eg Figma, Sketch, Adobe PS, etc files) and create production-ready emails and landing pages in HTML?