UI Builder is a Chrome extension for quick, sketch-style wireframes directly in your browser.
Drag buttons, inputs, headers onto any page or blank canvas.
Perfect for fast feedback, live demos, and client calls.
Hey Product Hunt! Write it from my heart - without AI :)
I’m an IT analyst, and the idea for UI Builder came during one of those classic Zoom calls with a client while discussing design changes in a CRM system.
I realized how tricky it can be to quickly show what a new button or checkbox might look like - right there, in the browser. Sometimes I used screen drawing tools (not bad, but clunky), or I’d just sketch something later and send it for review after the call.
But being able to test and agree on a rough idea live, during the conversation - really speeds things up.
So I built this: ➤ Drag and drop UI elements onto any webpage or blank canvas ➤ Edit text in place, resize blocks, rearrange things ➤ Take screenshots or copy to clipboard ➤ Works locally, no data tracking, no login
I searched around and couldn’t really find a Chrome extension that does this - most are just drawing tools or annotation overlays.
Have you seen a tool like this before? Would love your thoughts or similar examples you’ve used.
I find this idea very clever. People in my team have struggled with the same problem of sketching UI ideas after meetings. Your drag and drop approach seems a great fit.
Any plans for adding collaboration features for teams?
Wow, this is super handy! I’ve spent way too much time alt-tabbing to a design app mid-call or sketching on paper. Can’t wait to try it. Love that there’s no login required. Any chance of adding custom component libraries down the road?
@aleksandr_heinlaid Really proud of this one — lots of thought and small details went into making it smooth and usable. Hope it helps folks mock things up faster right in the browser. Would love to hear what people think!
Congrats to the launch, @aleksandr_heinlaid ! Not sure if I am doing something wrong, but after installed the extension, nothing showed up. Any guidance?
This makes so much sense, I’ve been in that exact spot on calls and it always feels clunky trying to mock something up on the fly. Curious, how fast is the flow from capture to editing? Feels like speed is everything here
@alagerrka Thanks, totally get that - we've felt the same pain during calls. The flow is built to be instant: just click the icon, and you're dragging elements within seconds. No setup, no menus. Speed was a top priority from the start.
Congrats on the launch! As someone who spends a lot of time giving design feedback and talking through UI changes, this feels incredibly useful. Being able to mock things up live in the browser without switching tools sounds like a real workflow upgrade.
Neat one, this looks cool and practical, going to try it out and shout it out to my colleagues from Design :) Another tool that enables people to grow instantly is what I love to see <3
@velebit_miric Thanks a lot for the kind words! Really glad it looks useful to you - and super excited to hear you’ll share it with your design colleagues. We’re all about building tools that people can use instantly and grow with.
Replies
UI Builder - Mockup tool
Hey Product Hunt! Write it from my heart - without AI :)
I’m an IT analyst, and the idea for UI Builder came during one of those classic Zoom calls with a client while discussing design changes in a CRM system.
I realized how tricky it can be to quickly show what a new button or checkbox might look like - right there, in the browser.
Sometimes I used screen drawing tools (not bad, but clunky), or I’d just sketch something later and send it for review after the call.
But being able to test and agree on a rough idea live, during the conversation - really speeds things up.
So I built this:
➤ Drag and drop UI elements onto any webpage or blank canvas
➤ Edit text in place, resize blocks, rearrange things
➤ Take screenshots or copy to clipboard
➤ Works locally, no data tracking, no login
I searched around and couldn’t really find a Chrome extension that does this - most are just drawing tools or annotation overlays.
Have you seen a tool like this before? Would love your thoughts or similar examples you’ve used.
Until now, I haven't seen such a versatile plugin here. Wish you good luck, guys! :)
UI Builder - Mockup tool
@busmark_w_nika thank you!
UI Builder - Mockup tool
@busmark_w_nika Thanks a lot! We tried to keep it both simple and flexible.
Congratulations on the launch Aleksandr!
I find this idea very clever. People in my team have struggled with the same problem of sketching UI ideas after meetings. Your drag and drop approach seems a great fit.
Any plans for adding collaboration features for teams?
UI Builder - Mockup tool
@pranay12 Thanks so much! Glad to hear it resonates with your team - that’s exactly the kind of workflow we built it for.
Collaboration features aren’t available yet, but they’re definitely on the roadmap.
UI Builder - Mockup tool
@pranay12 Appreciate the kind words! Collaborative use cases are definitely something we want to explore soon.
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Wow, this is super handy! I’ve spent way too much time alt-tabbing to a design app mid-call or sketching on paper. Can’t wait to try it. Love that there’s no login required. Any chance of adding custom component libraries down the road?
UI Builder - Mockup tool
@hugors00 Thanks so much! Really glad it solves a pain you’ve felt - that was exactly the idea.
And yes, custom or expanded component libraries are definitely in the plans. I’m aiming to ship updates roughly once a month, so stay tuned!
UI Builder - Mockup tool
@hugors00 Great point! A custom library system is something we've talked about internally — definitely coming in future releases.
UI Builder - Mockup tool
@aleksandr_heinlaid Really proud of this one — lots of thought and small details went into making it smooth and usable.
Hope it helps folks mock things up faster right in the browser. Would love to hear what people think!
UI Builder - Mockup tool
@lembit_hunt Proud too! Let's see how it goes.
The most useful UI Builder if you need to sketch smth on the go. Congrats on the launch!
UI Builder - Mockup tool
@michael_vavilov Thanks a lot! Glad you find it useful
UI Builder - Mockup tool
@michael_vavilov Thanks, that means a lot! The 'on-the-go' part was one of our core use cases.
DocsHound
@aleksandr_heinlaid Congrats on the launch. Definitely worth trying!
UI Builder - Mockup tool
@k_piotr thanks!
UI Builder - Mockup tool
@aleksandr_heinlaid @k_piotr Thanks Piotr glad you’re giving it a try
Congrats to the launch, @aleksandr_heinlaid !
Not sure if I am doing something wrong, but after installed the extension, nothing showed up. Any guidance?
UI Builder - Mockup tool
@fullstack_x Thank you! Just activate it on any website other than the Chrome Web Store.
UI Builder - Mockup tool
@aleksandr_heinlaid @fullstack_x thanks! let us know if you won't manage the problem
@aleksandr_heinlaid @lembit_hunt Thanks both! It worked after following the guidance. Nice job!
Easy to use and lightweight, congratulations. Is there an option to add another person to an existing sketch/project?
UI Builder - Mockup tool
@eljo_prifti Thanks, really appreciate it!
At the moment, there's no option for real-time collaboration - it's a solo tool for now.
But that’s a great idea, and I ll definitely add it to the backlog for future updates!
Perfect for quick prototyping during client demos! 👀
UI Builder - Mockup tool
@shenjun Exactly! That’s one of the main use cases we had in mind - live edits during client calls . Thanks!
UI Builder - Mockup tool
@shenjun Yep quick edits during live demos was one of our core goals thanks
Super nice product! Congrats on the launch 🚀🚀
UI Builder - Mockup tool
@mara_ilie_ Appreciate it a lot! So glad you like it, Mara
UI Builder - Mockup tool
@mara_ilie_ Thanks Mara happy you liked it
UI Builder - Mockup tool
@scott_busby1 Thanks, Scott! Hope it helps - would love to hear what you create with it!
UI Builder - Mockup tool
@scott_busby1 Appreciate it Scott !
Lookverse.ai
This makes so much sense, I’ve been in that exact spot on calls and it always feels clunky trying to mock something up on the fly. Curious, how fast is the flow from capture to editing? Feels like speed is everything here
UI Builder - Mockup tool
@alagerrka Thanks, totally get that - we've felt the same pain during calls. The flow is built to be instant: just click the icon, and you're dragging elements within seconds. No setup, no menus. Speed was a top priority from the start.
UI Builder - Mockup tool
@alagerrka thanks a lot, Oxana
I was once in need of a tool like this — love that you made it affordable and available for everyone. Wishing you a great launch!
UI Builder - Mockup tool
@tetiana_hryshmanovska Thanks so much, Tetiana - really glad to hear that!
Well, good product for founders
UI Builder - Mockup tool
@deepanshu_chittoria Thanks! Yep , definitely aimed to help founders move fast and iterate visually
UI Builder - Mockup tool
@deepanshu_chittoria Thanks a lot founders were exactly who we had in mind
AAArdvark
Congrats on the launch! As someone who spends a lot of time giving design feedback and talking through UI changes, this feels incredibly useful. Being able to mock things up live in the browser without switching tools sounds like a real workflow upgrade.
UI Builder - Mockup tool
@nataliemac7 thank you! yep, skipping all the switching is what makes it feel snappy and smooth :)
Lookverse.ai
This is so good! The simplicity is honestly the best part - no fluff, just open and use.
I’m dreaming of something like this but for mobile screens - to clear up so much miscommunication about changes
Big fan already. Congrats on the launch! 🚀
UI Builder - Mockup tool
@yura_pogosyan really appreciate it! mobile support is a great idea - we’re thinking in that direction too.
Amazing, installed! are users allowed to change the typeface?
UI Builder - Mockup tool
@wang_yiting thank you! not yet, but custom fonts are definitely something we’re considering
Prit
The smartest way to communicate with developers!
Drawing a wireframe should have been easy like this.
Congratulations, @aleksandr_heinlaid@lembit_hunt!
UI Builder - Mockup tool
@lembit_hunt @pritraveler thanks a lot!
Neat one, this looks cool and practical, going to try it out and shout it out to my colleagues from Design :) Another tool that enables people to grow instantly is what I love to see <3
UI Builder - Mockup tool
@velebit_miric Thanks a lot for the kind words! Really glad it looks useful to you - and super excited to hear you’ll share it with your design colleagues. We’re all about building tools that people can use instantly and grow with.
Appreciate the support !