One developer · Antwerp, Belgium

SevinHub An independent software and technology studio.

Software. Security. Solutions.

See what I build

Animated diagram: the SevinHub mark, a hexagon, opens into three planes that meet at one corner: products, Invisible Atlas and security research.

Secure Checkout Crypto SEPA Invoices EU-based 3+ Years Updates Promised Instant Delivery Lifetime Ownership
Products · Free tier

15 tools you can open right now

Real tools you can use right now. No signup gate, no payment. 15 free tools: in-house builds plus open-source forks I've polished and re-hosted.

Available tools / select a module to inspect
15 available
Web Crawler SpecialLiteral Web Crawler built
SevinOS SpecialBrowser Desktop OS built
RadarHub SpecialAI Speed Radar built
ExplainHub SpecialVisual Explanation Studio built
Glide Special3D Flight Explorer built
QR Code GeneratorBusiness Toolkit built
SevinShieldAd & Malware Scanner built
WebScanWebsite Intelligence fork
Awesome HackingSecurity Resources fork
Lets TalkWebRTC Chat built
SlotHubCasino Slots built
StoryHubStory Sharing built
Matrix RainAmbient Display Engine fork
SevinHub AmbientRelax · Focus · Play built
Deeper StillEndless Zoom Puzzle built
No modules match that filter. Try another category or search term.

Web Crawler

Literal Web Crawler

A spider that actually crawls the web. Eight legs grip real words and every link it touches glitches. A new Wikipedia article to crawl every day, zen fullscreen with generative sound, your own text, or any website you release it on.

Built by SevinHub
Pillar 2 · Technology

Invisible Atlas

A phone powered sensing network, and the data it produces.

An Android app that turns an ordinary phone into a field instrument. It measures ten real layers of the world around you, aggregates them into map hexagons on the phone before anything is published, and funds verified environmental action with what it finds. Every number on the map is a real measurement.

BLE
WiFi
Cell
Mag
Air
Night
Sound
GNSS
WiFi Hz
Cell Hz
Live on Google Play

No invitation or Gmail registration needed. The listing still reads BLE Radar until the rename completes.

Live network
🌳 28
Trees planted
🌊 2.7kg
Ocean waste removed
☁️ 3.6kg
Carbon captured
🚗 2476km
Driving offset
💧 $0.00
Clean water
🐾 $1.00
Animal support
Open the full planet
The living planetLoads when you get here

The real network, right now: real sunlight for this minute, NASA night lights on the dark side, and every glowing point a place a phone actually measured.

What it never collects: no device identity, no person counts, no routes, no raw audio. Area statistics only, which is what makes the data safe to publish.
Products · Sellers

Built something? Sell it here.

SevinHub takes outside products too. One-time pricing, lifetime ownership for the buyer, never subscriptions. Every listing is reviewed by hand before it goes live, which is why the catalogue stays small.

A flat fee, not a cut that grows

You set your own price. SevinHub charges one flat fee per sale for external sellers, so a more expensive product does not cost you more to sell.

Reviewed before it goes live

Every product is checked by hand. That is slower for you, and it is the reason buyers trust what is listed here.

Buyers who came looking

The audience here is specifically after self-hosted PHP applications and developer tools, not a general marketplace crowd.

Client Work

Real sites, built and shipped

A look at web development projects delivered for real clients. Designed, coded, and launched personally, no templates, no agencies in between.

How ownership works

Buy once, run it yourself, keep it

The same terms on every product. This is the part most marketplaces leave vague.

One payment, not a subscription

The version you buy stays yours. There is no renewal, no seat count and no licence server to phone home to. You buy a licence rather than the copyright, which means the full source code is yours to keep, read, change and host anywhere for as long as you like, and any developer you hire can take it over and maintain it without us, but the product itself may not be resold or redistributed as your own.

Three years of updates, at least

I commit to shipping every new version, bug fix and security patch for that product free for at least three years after you buy. SevinHub started trading as a registered Belgian business in September 2026, while the platform itself has been online since December 2025, so that is a promise I am making, not a track record I can show you yet.

White label on most products

Rebrand it and run it for your own clients. Reselling under your own name is allowed where the extended licence covers it.

SevinHub Typical Marketplaces
Pricing model✓ Lifetime · one payment · no renewalsSaaS terms or limited licenses
Free updates after purchase✓ 3+ years included6, 12 months, then paid renewals
Works on cPanel shared hosting✓ No Composer, no Node, just uploadOften requires VPS, build steps
Security baked in✓ Built by a cybersecurity practitionerHit or miss, varies by author
Direct support from developer✓ Telegram + email · <4h typicalForum tickets · days or never
Custom builds & white-label✓ Yes, request a quoteNot offered
License keys + signed invoices✓ HMAC-signed · PDF invoicePlain download link
Where the business is✓ Belgian-registered, EU-basedOften US-based
Common Questions

Everything you'd ask before buying

Why "Hub"? What does that actually mean?
SevinHub is one central hub where any business can replace monthly SaaS tools with scripts they own outright. Pick what matches your need, install on your hosting, stop paying rent on your own operations.
What do I actually get after I buy?
Within seconds: a one-time download link, your signed SVH-XXXX-XXXX-XXXX-XXXX license key, and a printable PDF invoice. Re-downloadable anytime from your dashboard.
Will this run on my cPanel / shared hosting?
Yes. Pure PHP, no Composer, no Node.js, no Docker. PHP 7.4+ and MySQL/MariaDB is all you need. If it doesn't run on your host, I'll fix it or refund you.
What does "3+ years of free updates" mean?
For at least 3 years after purchase, every new version of that product, bug fixes, security patches, features, is yours at no extra cost.
Can I rebrand and resell to my own clients?
For products marked white-label, yes, buy the extended license and rebrand, install for multiple clients, and resell.
How do I pay? Do you take crypto?
Card (Stripe), crypto (NOWPayments, BTC, ETH, USDT and more), and EU SEPA bank transfer. Delivery is automatic except bank transfer (manual within hours).
What if something breaks or I need help installing?
Open a ticket or message me via the live chat widget, it goes straight to my Telegram. Typical reply under 4 hours EU business hours. Install help is free.
Do you build custom software or do security work?
Yes, see Services and Cybersecurity. Custom PHP apps, white-label scripts, authorized pen testing, security reviews.
Refund policy?
Digital products are non-refundable once delivered. But: if it doesn't work on a supported hosting setup, or is materially different from the description, 100% refund, no friction.
Pillar 3 · Services

Two kinds of work, done to order

Small scope, direct contact, a fixed quote before anything starts. You are talking to the person who writes the code.

Custom software

A PHP and MySQL application built around how you actually work, or an existing system extended and fixed. Delivered on your hosting, with the source code, branded as yours. White label is available on most of the Hubs.

Describe your project

Cybersecurity

Authorized security reviews, website and infrastructure checks, and remediation you can act on. The investigations below are published in full so you can judge the work before asking for any.

See the security work

Real threat investigations, documented end to end

Passive OSINT only: live malware servers, decoded RAT payloads, exposed infrastructure, all investigated from scratch with a browser and open source tools.

Ready to ship

Tell me what you need.
I will tell you if I can build it.

A product you can install today, a data question for Invisible Atlas, or an application that does not exist yet. One developer reads every message.

Browse premium PHP scripts, request a custom web app, or get your security reviewed. No subscriptions, practical tools and direct access to the developer.

SevinOS Invisible Atlas