Startup Directory

DukieX helps creators and teams run discussions, commerce, livestreams, bookings, memberships, ads, and AI-assisted workflows in one branded Space.

Create royalty-free music instantly with our free AI music generator. Turn text or lyrics into high-quality songs for personal or commercial use.

Personal projects by Krystian Welcel

finisma is a free web tool for German B2B compliance. It does two things and nothing else: 1. Convert any PDF invoice into a compliant ZUGFeRD (a.k.a. Factur-X) e-invoice: PDF/A-3 with an embedded EN 16931 XML payload that buyers' accounting systems can read automatically. 2. Verify any ZUGFeRD/Factur-X PDF: structural checks (PDF/A-3, embedded factur-x.xml, AF markers, Factur-X metadata) plus the full parsed invoice in a clean human-readable view. No signup, no credit card, no integration work. Drop a file in the browser, get the result back. Built for the German E-Rechnungspflicht: every B2B company in Germany has to be able to receive e-invoices since 2025, and has to issue them from 2027 (>€800k revenue) or 2028 (all others). Key features (bullet list for the gallery / "features" field) - PDF → ZUGFeRD in ~30 seconds - LLM-based field extraction (you review and correct before commit) - EN 16931 validation built in - ZUGFeRD/Factur-X viewer with parsed invoice display - IBAN cross-check against the original document - Uploaded files auto-delete after 5 minutes - German servers, ISO 27001-certified data center - Free for everyone, no usage caps published

Stylize Image helps turn photos into styled visuals, clean cutouts, sharper images, and colorized old photos in a simple browser workflow.

Manga Colorizer colors black-and-white manga and translates it into multiple languages while keeping the original layout.

Make short animated clips from a prompt, story, or character photo. Add storyboards, voices, music, and captions in one browser workflow.

MemoTune is an AI music generator that turns text and lyrics into complete songs with vocals, instruments, and mixing.

AI Lip Sync Video lets users upload a photo or video, add audio, and generate a realistic lip-synced talking video with AI. It supports different faces, voices, and languages without studio recording, reshoots, or editing skills, making it useful for social media, marketing, education, and creative projects.

SpriteFlow is an AI sprite generator that turns character images into complete game animations — walking cycles, attack animations, sprite sheets — with guaranteed style consistency. Exports directly to Unity and Godot. No drawing skills required. 10x faster than Aseprite.

WhitelistVideo reviews every YouTube video before your child watches it (under 2 seconds) and blocks inappropriate content. But we do something different: we train YouTube's algorithm to recommend better content over time. When our AI approves educational videos, watch time increases on quality content. YouTube's recommendation engine learns and starts suggesting MORE educational videos naturally. Parents manage everything from WhatsApp, Telegram, or web dashboard — approve channels, get weekly AI insight reports. COPPA compliant with zero child data collection. Works on Windows, macOS, Chromebook, iOS, Android, and Android TV. Free tier available.

Personal projects by Matas Matt