Celexly 桜 · セレクスリー
Software that
blossoms.
Chrome extensions, Android apps, websites and AI agents. Built end to end by one studio, so the thing you asked for is the thing that ships.
春夏秋冬 Fly through the four seasons 19 extensions live on the Chrome Web StoreBuilt with modern, battle-tested tools
What we make 製品
Seven product lines, built by one studio.
Every product is designed to do one thing exceptionally well, and to work beautifully together.
Chrome Extensions 拡張機能
Lightweight tools that live in your browser and save real time, every day.
Learn more →Android Apps アプリ
Native and cross-platform apps, from first sketch to the Google Play Store.
Learn more →Steam Games ゲーム
Original pixel-art worlds, characters and systems being developed for Steam.
Enter the game lab →Books 書籍
Original fiction, illustrated worlds and practical books made to be kept.
Browse the shelf →Websites ウェブサイト
From snappy static sites to full dynamic platforms with custom backends.
Learn more →AI Agents 人工知能
Custom chatbots, copilots and automations powered by modern AI models.
Learn more →Sub Products 副製品
Google Workspace scripts and future focused software outside our main product lines.
Learn more →How it fits together 構成
One studio, the whole stack.
Interface, service layer and platform are built by the same hands, so nothing gets lost between the people who design it and the people who ship it.
Chrome Extensions 拡張機能
Your browser,
supercharged.
We design fast, focused extensions that remove friction from the work you do most. Built to Chrome's modern Manifest V3 standard, secure, private, and effortless to install.
- Productivity & automation tools
- Privacy-first, no bloat
- One-click install from the Web Store
- Custom extensions for your team
Android Apps アプリ
Your idea,
in every pocket.
We design and build Android apps, native and cross-platform, from first sketch to the Google Play Store. Fast, polished, and made to fit your business.
- Native Kotlin & cross-platform builds
- Clean Material Design interfaces
- Accounts, payments & notifications
- Published & maintained on Google Play
Websites ウェブサイト
From static
to fully dynamic.
Whether you need a beautiful brochure site that loads instantly, or a full-stack platform with a custom backend, databases and dashboards, we build it to fit your business, not a template.
Static Sites
Fast, secure, low-cost. Perfect for small businesses ready to look the part.
Dynamic Platforms
Full frontend + backend, user accounts, content management and integrations.
AI Agents 人工知能
Intelligence,
working for you.
Custom AI agents and assistants, chatbots, copilots and automations powered by modern language models, wired into your tools, your data and your brand.
- Support chatbots that answer from your docs
- Internal copilots for your team
- Agents that take action, not just chat
- Grounded in your knowledge, safely
Our first business build is live: Xia Wu, a RAG agent for internal use, built as a pre-sales platform for a company. 234 files, 28 test suites, answers that cite their sources.
See the build →Steam Games 武侠 · ゲーム
Handcrafted worlds.
Pixel by pixel.
Original Steam games with cinematic pixel environments, martial-arts stories and layered worlds designed for exploration.
- High-detail original pixel-art environments
- Character-led wuxia and fantasy stories
- Tactical systems, exploration and choice
- Concept worlds currently in development
Books 書籍 · 物語
Stories worth
keeping.
Original fiction, illustrated world books and practical field notes, written, edited and designed as carefully as the software.
- Original character-led fiction
- Illustrated worlds, maps and visual lore
- Compact practical guides
- First volumes currently being written
Sub Products 副製品
Everything else
we grow.
Focused software outside our main lines, beginning with Google Workspace scripts that automate Sheets, Docs, Gmail, Drive and the repetitive work between them.
- Google Sheets reporting & automation
- Docs, Drive and Gmail workflows
- Custom Apps Script builds
- New sub products added all the time
Why Celexly 心
Big-company craft.
Small-team care.
We're a focused software studio building the digital tools modern businesses need. No bloat, no jargon, just well-made products and people who actually answer your emails.
Crafted 匠 · takumi
Every pixel and line of code is considered. We obsess over the details so you don't have to.
Practical 実 · jitsu
We build things that solve real problems and ship, not science projects that never launch.
Yours 和 · wa
Tailored to your business. We adapt to your workflow, brand and goals, not the other way around.
Let's build something
worth talking about.
Tell us what you need, an extension, an app, a website, or an AI agent. We'll get back to you fast.