01
A literary archive of old Sofia — books, vintage photography and the quiet traces an eternal city leaves behind.
Digital Studio — Est. 2025
Diabolith
Crafting digital experiencesthat leave a mark.
We design and build premium websites, digital products and immersive online experiences for ambitious brands.
We design.
We build.
We innovate.
We obsess over details.
We create experiences.
We create impact.
We are Diabolith.
03 — Capabilities
Everything we touch,
engineered to last.
Six disciplines, one obsessive standard. We bring strategy, design and engineering under a single roof.
01
Web Design
Editorial, art-directed interfaces engineered around clarity, rhythm and emotion.
- Art Direction
- UI Systems
- Design Ops
02
Web Development
Performance-obsessed front-ends built on modern, resilient architecture.
- Next.js
- WebGL
- Headless CMS
03
Product Design
End-to-end product thinking — from first principles to pixel-perfect flows.
- UX Strategy
- Prototyping
- Design Systems
04
Motion Design
Choreographed interaction and storytelling that makes interfaces feel alive.
- Animation
- Interaction
- 3D / WebGL
05
Brand Identity
Distinct visual languages with the confidence to last a decade.
- Identity
- Guidelines
- Naming
06
Digital Strategy
Positioning, narrative and roadmaps that turn ambition into momentum.
- Positioning
- Research
- Roadmaps
04 — Selected Work
Selected finished
projects you can
explore.
02
A premium engineer's portfolio — fast, considered and built to let the work speak louder than the words.
03
A backend engineer's portfolio — clean architecture, resilient systems and the quiet craft of code that simply holds.
VPZ
Coming Soon
VPZ
In Progress
04
A new project currently taking shape in the studio. Coming soon.
NB
Coming Soon
NB
In Progress
05
A new project currently taking shape in the studio. Coming soon.
05 — Process01 / 05
01
Discover
We immerse ourselves in your world — auditing, listening and asking the questions others skip.
02
Strategy
We define the narrative, the positioning and the metrics that will make the work matter.
03
Design
We craft an art-directed system, prototyping motion and interaction from the very first pixel.
04
Develop
We engineer it with obsessive attention to performance, accessibility and detail.
05
Launch
We ship, measure and iterate — partners in the work long after release day.
06 — The Studio
Two founders.
One obsessive standard.
Diabolith was founded by two designers-engineers who refused to choose between beautiful and fast. Meet the people behind the work.
Kristiyan Borisov
Co-Founder · Engineering, Design & Product
Bridges clean architecture and considered design. Leads full-stack engineering and product, shaping how Diabolith's work is built and how it feels.
- Backend
- Frontend
- Design
- Architecture
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Completed Projects0+
Technologies Mastered0%
Customer Satisfaction0+
Years Experience08 — Contact
Get in touch
For a new project, an idea or a partnership, write to us directly.
We usually reply as soon as we can.