We plan, develop, and operate our own web services and products to solve challenges in specific domains, handling everything in-house from planning through operation.
We have experience in developing e-commerce shops, logistics and inventory management systems, point-of-sale systems, AI agent chatbots, and more.
From scoping to launch and operations,
the same engineer handles your project.
Verify the experience and public activity below.
Founded by veteran engineers. Tokyo-based product studio.
Passveil is a free tool for securely sending files via email. Upload files to cloud storage with an expiration date and send secure download links to recipients. Ensure security with password protection and automatic deletion.
AmbientBGM is a free BGM player that continuously plays unobtrusive music. Perfect for remote work, cafés, waiting rooms, retail stores, meditation, or sleep. No ads — all tracks are AI-generated.
DomainHike is a free tool for searching .com domains and recording search history. AI helps you find available .com domains from your ideas, assisting you in discovering truly usable domains.
Support Node is an email support management tool for business startups. Centralize your inbox, assign responsibilities, and use AI-generated reply drafts to reduce response time and prevent missed or duplicate responses.
Desktop apps we build in-house and publish for free.
macOS / Windows
A SQL client that handles everything from MySQL, PostgreSQL, and SQL Server to Redis, Elasticsearch, and DynamoDB in one app.
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macOS / Windows
Capture, redact, and hand off. A screenshot and annotation tool for macOS and Windows.
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macOS
A native macOS LAN scanner that lists what is connected to your network.
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macOS / Windows
A lightweight terminal that can drop a small popover terminal down from the menu bar.
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macOS (Apple Silicon) / Linux
Runs the shell commands written in a Markdown file and writes the results back into the same file.
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macOS / Linux
Type "j", press Enter, pick, press Enter. A TUI menu launcher for per-project commands.
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macOS / Linux
A command that asks a person the questions an AI agent wrote into a Markdown file, in a desktop window.
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macOS / Windows
A branch graph browser for Git that shows every branch and tag of a repository in one lane graph.
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macOS
A macOS menu bar app and command-line tool that finds CPU-heavy processes and disconnected Google Chrome helpers.
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macOS / Linux
A command that runs shell commands in parallel, each in its own pane of the terminal.
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macOS / Linux
A command that walks a directory like grep -r and reports the personal information it finds in files.
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macOS
A macOS menu bar push-to-talk app. Hold the hotkey, speak, and release to insert the transcript into the focused application.
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macOS / Windows
A desktop app that drafts replies. Paste the email you received, say how you want to reply, and get drafts.
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macOS
A terminal and GUI tool that lists the status of your configured Git repositories and syncs them.
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macOS
A macOS menu bar utility that uses a deliberately wide status item to tuck other icons off the left edge.
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macOS
A frameless browser window for leaving a page playing.
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macOS
A macOS menu bar app for AmbientBGM.com, a free ambient music player.
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From first contact to launch and beyond — four predictable steps.
Send us a message. We will set up an online consultation as soon as we review it. In-person meetings are available in the Tokyo metropolitan area.
Within 1 week, we send a written summary covering scope, phased timeline, and a rough quote.
We share a working build every week, plus a recorded demo and change notes — so you can track progress without standups.
We launch with you, then optionally stay on as the operations team — or hand off to your team with bilingual documentation.
Sample pricing. Contact us for details.
200,000JPY+
approx. $1,400 USD
BETAOptional add-ons
Forms, DB, login, CMS quoted separately
Example: cyberneura.com (this site)
Learn more / Talk to us400,000JPY+
approx. $2,700 USD
BETAOptional add-ons
WMS integration, 3rd-party app connections, multi-currency quoted separately
Example: shop.imthree.net
Learn more / Talk to usPlease contact us
from $1,000
Example: Passveil, AmbientBGM, DomainHike, SupportNode
Learn more / Talk to usPrices are before tax. Billing is typically in JPY,
but USD billing is also available. Contact us for details.
Four reasons international and domestic clients pick us.
Continuity
The person who scopes your project is the one who builds and operates it. No account-manager handoffs, no information loss, immediate technical decisions.
E-commerce expertise
We have shipped Shopify and MakeShop stores, inventory / fulfillment / WMS integrations, POS systems, and order automation for over a decade. We design for peak season from day one — not after the first outage.
Bilingual delivery
Specs, API docs, code comments, and handover notes — all available in either English or Japanese. Hand off naturally to a JP team after launch, or work with us entirely in English from the start.
Reliability first
We pick boring, battle-tested tools over the latest hype. SvelteKit, Astro, Django, Cloudflare, AWS — stacks we have run in production through outages, migrations, and scale-ups, not just in slide decks.
Free consultation. Tell us about your product idea, an existing service to improve, or an engineering team you want to extend.
