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Sebastian Brenner · Web developer & IT service provider · Immenstadt im Allgäu, Germany · serving Germany, Austria and Switzerland

© 2026 Sebastian Brenner. All rights reserved.

Projects

From idea to shipped: products, client work, and experiments.

sebb.pro

Brand site — vision.strategy.development

Personal BrandAIWeb App

Das Alpiente

Direct-booking website for two holiday apartments in Sonthofen, Allgäu

Client ProjectHoliday RentalDirect Booking

AYLEAN

Brand website and booking requests for a cycling and fitness coach in Hannover

Client ProjectBrand WebsiteBooking Requests

TrainerSpot

Marketplace connecting freelance trainers with gyms

Mobile AppMarketplaceMVP

Design System

Shared component system powering every project

Design SystemWeb & MobileMonorepo

ZoneSnapshot

Training zone analysis tool for Strava athletes

AnalyticsStrava APIPersonal Tool

AI Image Upscaling

From raw drawing to 4K — with a self-learning pipeline

AIImage ProcessingExperimental

Gym Analyser

Market research tool for the fitness industry

Market ResearchAIExperimental