Logo Design
Modern, memorable visual identities for brands that actually want to stand out.
Available · 2026
I am aDesigner& developer.
I design thumbnails and logos, and build full-stack apps. My work has driven 500M+ YouTube views.
(01)What I do
Services
From idea to shipped product — design, code, and strategy.
Web Apps
I code apps and websites end-to-end — from idea to shipped product, fast and intentional.
YouTube Thumbnails
Click-driving thumbnails for serious creators. 500M+ views generated across top-tier channels.
Landing Pages
High-converting pages. Fast, responsive, and designed to sell.
Mobile Apps
Cross-platform iOS and Android apps. From wireframe to App Store — performant and polished.
Backend & APIs
REST and serverless APIs, databases, auth, integrations — robust servers built to scale with the product.
(02)Portfolio
Thumbnails that convert
Over 500M+ YouTube views driven — from Like Nastya (130M+ subs) to Khalid Al Ameri, Corey Funk, Koreannosh, and Hudson Matter.
(03)Brand identity
A mountain that reads A
The Adventure AI mark started from one simple idea: a mountain shaped like an A. I designed the logo and carried it across the whole identity.
Gallery / 05 piecesMark · object · environment
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·05(04)Trusted by
Creators I've worked with
100+ clients served — from channels with millions of subscribers to billions of impressions, they trust my thumbnails to drive clicks.
ClientLike Nastya130M+ subscribers
ClientKhalid Al AmeriTop MENA creator
ClientCorey FunkAction sports
ClientKoreannoshLifestyle
ClientHudson MatterEntertainment
(05)Building now
Projects
What I'm shipping at the moment.
Flagship productNVIDIA Inception member
Adventure AI
AI platform for crafting interactive adventures and experiences. Combines storytelling, automation, and artificial intelligence into a single product.
AISaaSWebNext.js
Visit adventuregen.aiMobile app
Motoriza
The Duolingo for driver's license.
MobileReact Native
Design
Thumbnails & Branding
Full identity packages and thumbnails for creators and brands.
DesignBranding
Landing Pages
High-converting websites
Landing pages and marketing sites built with Next.js and Tailwind — focused on speed, performance, and identity.
Next.jsTailwindTypeScriptVercel
(06)About
Building at the speed of curiosity.
I'm Matheus Nicolas, but you can call me TzDev. I'm 23 and I mix design and code to turn ideas into real products.
My thumbnails have driven over 500M YouTube views for top creators including Like Nastya (130M+ subscribers), Khalid Al Ameri, Corey Funk, Koreannosh, and Hudson Matter.
Right now I'm building Adventure AI and shipping web apps, mobile apps, APIs and backend servers end-to-end — alongside thumbnails, logos and landing pages — fast, intentional, and with identity.
On the AI side, I fine-tune pre-trained models and run advanced workflows in ComfyUI — building custom pipelines for image generation, identity and style transfer.
Good product is the sum of aesthetics, performance, and story.
The dream? Build a 🦄 unicorn startup from scratch.
Next.jsReactTypeScriptTailwindReact NativeNode.jsREST APIsPostgreSQLAI / Fine-tuningComfyUIFigmaIllustratorDesignBranding
500M+ ViewsAdventure AIYouTube ThumbnailsLanding PagesWeb AppsMobile AppsBrandingLogosAI Products500M+ ViewsAdventure AIYouTube ThumbnailsLanding PagesWeb AppsMobile AppsBrandingLogosAI Products
(07)Contact
Got an idea?Let's build it.
Hit me up for your logo, your thumbnail, your landing page — or your next product.