Independent software studio

Small tools.
Better workflows.
Bigger possibilities.

We build tools that make a developer’s day easier. Chrome extensions, useful web apps, and a little room for play. We also help businesses put AI and security into practice.

From the studio01 / TinGau
tingau.tyyu.devWEB GAME
TinGau mobile game with played tiles on the table, a highlighted winning tile, and seven tiles in hand
Classic game. Modern browser.Make time for a little play.
Close-up of TinGau’s black tiles with red and white pips
Designed for the webPlay TinGau
Developer-first thinkingPractical by designFrom idea to implementation
01 / Software that earns its place

Built for your everyday.

Focused tools for the small tasks that interrupt good work. Simple to pick up. Easy to keep using.

Featured project / Chrome extension

Unix Time
Companion

From timestamp to readable date.
And back, in one box.

Debugging logs, checking API responses, or scheduling across timezones? Paste a Unix timestamp or type a date and get the formats you need without leaving your browser.

  • Automatic conversionDetects seconds, milliseconds, and date input.
  • Every format at a glanceSeconds, milliseconds, local time, UTC, ISO 8601, and relative time. Copy any result.
  • Your language. Your timezone.English and Chinese dates, with local or custom timezones.
On-device conversion. No accounts, analytics, or data collection.
Ask about Unix Time Companion
01 / Timestamp to dateCHROME EXTENSION
Unix Time Companion converting 1725636000 to September 6, 2024 at 15:20 UTC, with seconds, milliseconds, ISO and relative results
Paste a timestamp. Copy the format you need.
02 / Chinese date inputEN / 中文
Unix Time Companion recognizing a Chinese date for September 6, 2024 at 3:20 PM and converting it to a Unix timestamp
Readable dates in. Unix timestamps out.
Right-click selected text to convert⌘ / Ctrl + Shift + U
02 / A little room for play

Good software can be fun, too.

Simple web games, built with the same attention to clear interactions and a smooth experience.

Browser game / Studio spotlight

TinGau

A traditional tile game, reimagined for the browser. A small project that brings thoughtful interaction and the pleasure of play to the web.

Play TinGau
Mobile screenshot of a TinGau round with played tiles and a highlighted winnerTINGAU / PLAY IN YOUR BROWSER
03 / Expertise, applied

Make your next move
a considered one.

Practical technical guidance for teams exploring AI, improving security, or turning an idea into working software.

[ 01 ]

AI applications

Find where AI adds real value, then build a sensible path from experiment to everyday use.

  • Use-case discovery & feasibility
  • Prototypes & workflow integration
  • On-premise LLM inferencing
  • Evaluation & responsible adoption
[ 02 ]

Cybersecurity

Understand your exposure and improve the security of the systems your business depends on.

  • Application security reviews
  • Threat modeling & risk prioritization
  • Secure development guidance
  • ISO 27001 readiness & implementation guidance
[ 03 ]

Software & web

Turn a focused idea into a usable product, with sound technical choices from the start.

  • Product scoping & architecture
  • Web apps & browser extensions
  • Prototyping & technical advisory
Clear advice.
Something you can act on.

Start with the problem and the constraints. Explore the options, build what is useful, and leave your team with clear next steps. No unnecessary complexity.

Let’s build something useful

A workflow to improve?
An idea to bring to life?

Tell us what you’re working on and where you need a hand.

contact@tyyu.devA clear starting point for a conversation.

Start with your idea.

Use this short brief to describe your project. Copy it and email it to contact@tyyu.dev to start a conversation.