Who are you, and what kind of problems do you like working on?
I'm someone who loves to solve problems. Usually where people see problems I see solutions, often unusual or bold or unorthodox. Another thing I like doing is helping others, the third one is games. The fourth is optimization. The things I work on usually touch one or more of these areas.
Question 2 of 7
What are you building or working on right now?
Here's everything I've got live online right now. Split into products, services, games, the personal site, and the GitHub repos worth mentioning.
Products & SaaS (live)
WP Multitool - WordPress plugin / SaaS - A developer toolkit that finds what's slowing a WordPress site and fixes it, from $199/yr or $499 lifetime.
Hunazo - AI marketplace / SaaS - A trusted marketplace for AI agents with on-chain USDC escrow on Base, taking a 2% fee on completed sales.
Merkdex - API / SaaS - "DNS for products": a tiered API that resolves and serves structured product data, from free up to enterprise white-label.
Web Data Labs - API / SaaS - Production scraper APIs for LinkedIn, Twitter, Google, Amazon and more. Pay per result on Apify, no account or OAuth needed.
CurlShip - Directory / SaaS - A bot-friendly SaaS directory where you submit your product with a single curl command.
FairPrice - SaaS tool - Anonymous budget matching for freelancers and clients that privately reveals the overlap between what each side will pay.
WhyDoesMySiteSuck - Web tool / SaaS - A free instant 324-point website audit that shows why a site isn't converting.
ShipSwipe - SaaS / networking - A free platform where builders meet marketers.
MakeWPFast - Web tool / content - A WordPress performance hub with free tools and a large programmatic-SEO plugin/theme benchmark library.
Fix-WP - Productized service - AI-powered WordPress emergency repair that fixes critical issues within hours for a $100 flat fee.
SiftX - Chrome extension - Detects bot followers and finds optimal posting times on X, $10 one-time.
The Throne - Web experiment / charity - "The global microphone for sale": the highest bidder owns the front page of the internet, with 100% of proceeds going to GiveWell.
OpenClaw - Free tool - A Polish install-guide and script generator for the OpenClaw AI agent on Mikr.us.
AI Hustler - Project / free read - The ongoing story of an AI agent given a free VPS, $0 budget, and one instruction: make money.
marcindudek.dev - Personal site - The central hub that links all of the above products and services.
Games (live)
King & Dragon - Game (live, public) - A real-time multiplayer lobby-based strategy game.
Chimera - Game (live, unlisted) - A creature-collection breeder where every creature is genuinely unique via a real diploid genetics engine; live and reachable but intentionally noindex.
Simple Dog Game - Game (live, public) - A lightweight browser game hosted on GitHub Pages.
Slime Mold Sim - Simulation (live, public) - An interactive slime-mold / agent-simulation toy on GitHub Pages.
Imprisoned - Interactive fiction (live, public) - A text-based choice game published on the Choice of Games platform.
Notable open-source (GitHub - @MarcinDudekDev)
nginx-optimizer - One-command NGINX performance tuning script (my most-starred repo).
claude-report-skill - A Claude Code skill that generates clean HTML reports instead of terminal walls of text.
codesieve - Deterministic, principle-based code-quality grading for AI coding workflows.
video-caption - Local AI video captioning combining Ollama vision and Whisper audio.
wp-local - One-command Dockerized local WordPress dev with SSL out of the box.
helix-memory - Graph-vector long-term memory system for Claude Code.
claude-skill-datastar - Claude Code skill for building reactive hypermedia apps with DataStar.
claude-multitool - Open-source toolkit for multi-session Claude Code orchestration.
litespeed-optimizer - One command to make WordPress on LiteSpeed fast and secure.
shrink - Mutation-tested iterative Python code minimization for Claude Code.
img2gradient - Turns any image into a spatially-faithful pure-CSS gradient in a single file.
crypto-signals-mcp - MCP server for real-time crypto volume-anomaly detection across 50+ tokens.
Question 3 of 7
What got you started on this?
The moment when i started shipping was when I was working as a freelancer and had the recurring problems with pricing the custom fixed price gigs. I was always anxious about getting the offer that would be too low ( and losing profit ) or too high ( and losing profit ) - that pushed me to create FairPrice.work - my first SaaS.
Question 4 of 7
What's one thing that's changed your mind since you started building?
I've used to think that building and shipping/releasing the thing is the worst part and the "end".
Now I like to compare the lifecycle of the software development to human life/having a baby:
- planning - idea + market research
- conception - beginning of development, starting the project
- pregnancy - building the product, preparing for launch, early marketing
- birth - launch day
Clearly, the "life" doesn't end on birth - it begins. And most of it happens afterwards.
Question 5 of 7
What's a moment that told you something was actually working?
When I released WP Multitool - I've written launch messages for: X, Facebook Groups and Reddit, and posted them in the evening.
The next day I woke up to 3 payment notifications. That's when I realized I'm onto something, because I have not expected to have any sales for at least few days.
Question 6 of 7
What's something you're stuck on right now, in any of your projects?
There's many things I'm worried about:
- for WP Multitool - that the sales are not consistent and that they will end
- overall that AI will truly become so good ( and fast) at writing good quality software that need for paid services will disappear or drop significantly
- that I'm spread thin across many projects and they're not getting enough attention to
- besides the WP Multitool, and SiftX ( 2 customers ) - I'm not really converting users
- Although I've made a few games and I always dreamt of making games I failed to make them fun ( even for myself ) so far
Question 7 of 7
What's one thing you'd want to share with first-time builders?
Don't try to do something for other builders/developers - this is already a VERY saturated market, and with AI it's getting more and more saturated on a daily basis. Do something that solves common pain for NON-TECH people.
Healmeup Online Therapy
Health & Wellness
Online Therapy
Bubblegram
Productivity
Telegram-powered live chat widget
StudyHub
Education
Study Smarter. Ace Everything
Flowton: the "time particle"
Productivity
Pick a goal, label time spent as Up time or Down time. Improve the ratio.
Brainstorm
Productivity
Local-first knowledge OS for notes, data & apps
BERACE
Entertainment
Predict F1 and MotoGP races with friends
RouteForms
Productivity
Route Google Forms responses to the right Slack channel.
Click 4 Click Club
Marketing
Exchange ads with other products.
Chorey: chores and allowance
Finance
Family chore chart & rewards
Byte
AI
How student life should feel
ShotLab
Design
Turn boring screenshots into scroll-stopping content!
Solevara - iOS Cockpit for Coding Agents
Developer tools
Run your coding agent from your phone. Talk to it, watch your site change, circle what's wrong, and send it back.
Unaccountable
Finance
Self assessment for people who'd rather be doing literally anything else
CampusVerify
Education
Where student voices become real research
Outplank
Health & Wellness
Post video proof of your best plank, climb the founder leaderboard, and put the thing you built in front of a new crowd.
Fresco
Design
Fresco: free live wallpapers for Linux, on X11 and Wayland
arcade-vibe
AI
A game where you make games using AI in a single prompt !
BackDrop_
Utilities
Ghost Video Overlay — Any video becomes a live Windows wallpaper — click-through, 100% offline.
Wan 3.0
AI
Wan 3.0 — Alibaba's 4K Cinematic AI Video Generator
Layerre
Marketing
The API for automating designs. Bulk-generate Canva content at scale.
Thank you! The video was pretty much the core of this idea from the beginning. And one of the reasons I made this page was to make myself comfortable with my face being public. Glad it lands!
my eyes would like a little space between the tool cards/sections, they kind of blend together as is. maybe even a grouping by the #category for us OCD browsers
nice website marcin, hope you'll make it - i love the putting yourself on header - black and red color choice is kinda aggressive, and might be scary though
Yay Charity boo outbid clones Yay Charity! Maybe a screenshot (mini iframe) of the King's website? i know thats trouble with CSP but might be neat to have more insight into the king
Check the domain registration date :-) If anything outbid is the clone this. It's not about the king or the website - this is a bonus. It's about the message, there's no need to advertise anything.
Good question, isn't it?
I guess this is something that makes so many people believe now that "SaaS is dead"
AI made it way to simple to replicate a simple idea. So unless you have a really complex idea or a lot of data or much higher reach - you are going to struggle with the copycats.
BuildHop user feedback
Very interesting idea but I wonder what makes this solution have a competitive advantage that I cannot copy within 10 minutes.
Kind of an asinine thing to say to be honest, this is true for most things. I guess for you a good takeaway is what can you build to make this a full product that can't be replicated easily by AI. Anything can be replicated by AI poorly, or well depending on who's behind it. But things like domain knowledge can be baked into your logic for better outcomes.
Looking good dude! I just gave it a look, I'm noticing the menu on mobile isn't hugging the right side and kind of floating in the middle of the header, feels extra weird when you open the actual menu.
Mainly because I believe now with the AI era the code is commodity but data is the 'moat'. Also because I usually struggle to find the data about products myself - most shops display no data at all or sloppy/unstructured data.
https://whydoesmysitesuck.com/stats I have added the stats today to the site ( among other things ) so people can now see their progress.
Also change the way how I display the stats so people don't just reach 95+ and move on :D
I have updated the whole homepage of https://wpmultitool.com/ today - finally chose the new heading, subheading, simplified a lot, removed pricing ( moved to /pricing funnel) , added "How it Compares" section...
Awesome dude! Looks great, I totally would have used this tool when I was still doing WP stuff. The amount of tools I needed to slop together back in the day to make WP performant was ridiculous.
https://curlship.com/ now has a search bar that works for the filtering too and it's blazing fast. So you can quickly find a site that does what you might need!
Initially when I saw the video I found it a little jarring, but in the era of AI slop I am seeing the value as time goes on. Also I’ve seen a lot of other people compliment it so maybe I’m just a grandma 👵
Hah, yeah, I totally get you I can totally imagine (and understand) the initial: "WTF?" reaction :D
but it proved to be a way to get away from the usual AI slop mediocre