Hey! I'm Lenny Muffler

Building innovative
projects from code
to hardware
Building innovative
projects from code
to hardware

Web Development3D ModelingAutomationHardware DesignPCBServerUI/UXGame DevelopmentSwiftUIClaude Code
Web Development3D ModelingAutomationHardware DesignPCBServerUI/UXGame DevelopmentSwiftUIClaude Code
Web Development3D ModelingAutomationHardware DesignPCBServerUI/UXGame DevelopmentSwiftUIClaude Code
Web Development3D ModelingAutomationHardware DesignPCBServerUI/UXGame DevelopmentSwiftUIClaude Code
17-year-old student from Stuttgart with a passion for technology. Building web apps, designing hardware, and bringing ideas to life through code.

Hi, I'm Lenny Muffler, a 17-year-old high school student from Germany with a passion for technology and creativity. From building interactive web applications to designing hardware prototypes, I love exploring new ways to bring ideas to life. I specialize in full-stack web and app development, 3D modeling and creating automation workflows that streamline complex tasks.

Hi, I'm Lenny Muffler, a 17-year-old high school student from Germany with a passion for technology and creativity. From building interactive web applications to designing hardware prototypes, I love exploring new ways to bring ideas to life. I specialize in full-stack web and app development, 3D modeling and creating automation workflows that streamline complex tasks.

Selected Work

Some cool projects, Applications and Tutorials
View All ProjectsView All Projects

Photo Dump

All shot by me.

Hover me
View AllEnter 3D Museum

What People Say

Hack Club Voter #11

"bro you cooked it, really i love that Ui and the design of the website."

Originality 8/9Technicality 8/9Usability 8/9Storytelling 8/9
Hack Club Voter #9

"Very cool website, Fluid UI, clean animations, what more could you ask for"

Originality 5/9Technicality 6/9Usability 6/9Storytelling 5/9
Hack Club Voter #8

"This is a really good site I would use this and I dont have any negative Feedback"

Originality 9/9Technicality 9/9Usability 9/9Storytelling 8/9
Hack Club Voter #7

"I can see all the intricate details and features you placed in this project to create the best user experience"

Originality 4/9Technicality 5/9Usability 6/9Storytelling 7/9
Hack Club Voter #6

"WOW! I really like the design. This is crazy! This looks so cool! Amazing job!"

Originality 4/9Technicality 8/9Usability 7/9Storytelling 8/9
Hack Club Voter #5

"I like the project! The animations are cool!"

Originality 7/9Technicality 6/9Usability 6/9Storytelling 7/9
Hack Club Voter #11

"bro you cooked it, really i love that Ui and the design of the website."

Originality 8/9Technicality 8/9Usability 8/9Storytelling 8/9
Hack Club Voter #9

"Very cool website, Fluid UI, clean animations, what more could you ask for"

Originality 5/9Technicality 6/9Usability 6/9Storytelling 5/9
Hack Club Voter #8

"This is a really good site I would use this and I dont have any negative Feedback"

Originality 9/9Technicality 9/9Usability 9/9Storytelling 8/9
Hack Club Voter #7

"I can see all the intricate details and features you placed in this project to create the best user experience"

Originality 4/9Technicality 5/9Usability 6/9Storytelling 7/9
Hack Club Voter #6

"WOW! I really like the design. This is crazy! This looks so cool! Amazing job!"

Originality 4/9Technicality 8/9Usability 7/9Storytelling 8/9
Hack Club Voter #5

"I like the project! The animations are cool!"

Originality 7/9Technicality 6/9Usability 6/9Storytelling 7/9
Hack Club Voter #4

"At first, I thought why would you need 37hr+ on a simple project but the moment I used it I knew why — and I was awestruck! Awesome job buddy!"

Originality 4/9Technicality 6/9Usability 9/9Storytelling 4/9
Hack Club Voter #3

"I like the animation, it is fire!, id suggest another time to have more devlogs with more explanations, itd be even better."

Originality 6/9Technicality 6/9Usability 4/9Storytelling 4/9
Hack Club Voter #2

"Personal website has no use case but I was surprised to see a person with that much skill submitting a personal website"

Originality 8/9Technicality 8/9Usability 6/9Storytelling 4/9
Hack Club Voter #1

"this looks so cool i really don't have any feedback to give"

Originality 3/9Technicality 7/9Usability 7/9Storytelling 8/9
Hack Club Voter #12

"Woahhh!! This is rlly inspiring. As someone who's new to hack club, and stuff like html, css, unity-- this feels like I'm viewing the diary of a future version of myself lol"

Originality 5/9Technicality 5/9Usability 6/9Storytelling 6/9
Hack Club Voter #11

"The UI is sick! I like how you include what people says tab"

Originality 4/9Technicality 6/9Usability 3/9Storytelling 6/9
Hack Club Voter #10

"good storytelling, fluid animations, but i really don't like the smooth scrolling effect. it does look really really good though."

Originality 4/9Technicality 4/9Usability 5/9Storytelling 6/9
Hack Club Voter #9

"great looking UI ,lovely project and portfolio, love the animations too"

Originality 5/9Technicality 4/9Usability 4/9Storytelling 5/9
Hack Club Voter #8

"Impressive site. Visually it looks very great, and from an AP perspective it's a great tool! Great work with your application too! I'm kind of confused about the "museum" with the AI-generated images though, as it doesn't really tell much about you, maybe elaborate on that somewhere."

Originality 6/9Technicality 8/9Usability 7/9Storytelling 6/9
Hack Club Voter #6

"Your personal portfolio looks stunning and it shows off your skills very well! The cherry on top is switching between light and dark mode"

Originality 8/9Technicality 8/9Usability 8/9Storytelling 7/9
Hack Club Voter #5

"Very good project, might have to get into contact on insta and ask for some tips to get as good as you :)"

Originality 6/9Technicality 5/9Usability 5/9Storytelling 6/9
Hack Club Voter #4

"Keep up fffff good work, you are doing super great!"

Originality 7/9Technicality 7/9Usability 7/9Storytelling 7/9
Hack Club Voter #3

"This website is fire, it showcases your abilities really well"

Originality 8/9Technicality 8/9Usability 8/9Storytelling 8/9
Hack Club Voter #2

"I really like the design. maybe there could have been some other option"

Originality 4/9Technicality 6/9Usability 3/9Storytelling 6/9
Hack Club Voter #1

"I really like it very profesional I Just would like a lighter color scheme"

Originality 6/9Technicality 6/9Usability 4/9Storytelling 6/9
Hack Club Voter #4

"At first, I thought why would you need 37hr+ on a simple project but the moment I used it I knew why — and I was awestruck! Awesome job buddy!"

Originality 4/9Technicality 6/9Usability 9/9Storytelling 4/9
Hack Club Voter #3

"I like the animation, it is fire!, id suggest another time to have more devlogs with more explanations, itd be even better."

Originality 6/9Technicality 6/9Usability 4/9Storytelling 4/9
Hack Club Voter #2

"Personal website has no use case but I was surprised to see a person with that much skill submitting a personal website"

Originality 8/9Technicality 8/9Usability 6/9Storytelling 4/9
Hack Club Voter #1

"this looks so cool i really don't have any feedback to give"

Originality 3/9Technicality 7/9Usability 7/9Storytelling 8/9
Hack Club Voter #12

"Woahhh!! This is rlly inspiring. As someone who's new to hack club, and stuff like html, css, unity-- this feels like I'm viewing the diary of a future version of myself lol"

Originality 5/9Technicality 5/9Usability 6/9Storytelling 6/9
Hack Club Voter #11

"The UI is sick! I like how you include what people says tab"

Originality 4/9Technicality 6/9Usability 3/9Storytelling 6/9
Hack Club Voter #10

"good storytelling, fluid animations, but i really don't like the smooth scrolling effect. it does look really really good though."

Originality 4/9Technicality 4/9Usability 5/9Storytelling 6/9
Hack Club Voter #9

"great looking UI ,lovely project and portfolio, love the animations too"

Originality 5/9Technicality 4/9Usability 4/9Storytelling 5/9
Hack Club Voter #8

"Impressive site. Visually it looks very great, and from an AP perspective it's a great tool! Great work with your application too! I'm kind of confused about the "museum" with the AI-generated images though, as it doesn't really tell much about you, maybe elaborate on that somewhere."

Originality 6/9Technicality 8/9Usability 7/9Storytelling 6/9
Hack Club Voter #6

"Your personal portfolio looks stunning and it shows off your skills very well! The cherry on top is switching between light and dark mode"

Originality 8/9Technicality 8/9Usability 8/9Storytelling 7/9
Hack Club Voter #5

"Very good project, might have to get into contact on insta and ask for some tips to get as good as you :)"

Originality 6/9Technicality 5/9Usability 5/9Storytelling 6/9
Hack Club Voter #4

"Keep up fffff good work, you are doing super great!"

Originality 7/9Technicality 7/9Usability 7/9Storytelling 7/9
Hack Club Voter #3

"This website is fire, it showcases your abilities really well"

Originality 8/9Technicality 8/9Usability 8/9Storytelling 8/9
Hack Club Voter #2

"I really like the design. maybe there could have been some other option"

Originality 4/9Technicality 6/9Usability 3/9Storytelling 6/9
Hack Club Voter #1

"I really like it very profesional I Just would like a lighter color scheme"

Originality 6/9Technicality 6/9Usability 4/9Storytelling 6/9
SPECIALITYSPECIALITY

Areas of Expertise

A glimpse into my areas of expertise.

image ofWeb Development