About oka-project
What is oka-project?
Expanding possibilities
oka-project is oka's personal project that builds ways to carry information where it does not get through, and plans, builds and runs services that connect people with people and people with places.
Why make things?
Without a way to carry it, what could have met never meets
Between people, or between someone searching and a place, there are gaps where information does not get through.
oka-project builds ways to carry it across those gaps, and services that connect people with people and people with places. If that adds one more chance to connect, it is worth building.
The forms change, but the direction is one: get curious, try, build, write it down, put it out. Repeating that, we spread more wonder, wider.
How it is run
Published over promised
Plans and released work are kept separate. Public pages describe what is actually available and its current status.
Evidence over inflation
Use measured figures or clearly labeled estimates, and avoid numbers or claims that cannot be checked.
Build, operate, improve
A release is the start of operation, not the end of development. Usage and feedback feed back into the next revision.
One of its starting points
What is here now?
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Web services & tools
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VRChat media
I run “oka-vrc travelogue,” a Japanese VRChat world-guide media project based on places I have actually visited, along with beginner guides, settings, and practical information.
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Making & experiments
I use the web, AI, information organization, browser games, and other small projects as a place to build, test, publish, and improve ideas in practice.
How did it get here?
Releases and milestones, newest first.
now, to be continued.
2026
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Started publishing web tools
Released Markdown Viewer as the first tool and established oka-project.com/tools as the home for browser-based web tools.
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Launched the oka-project website
Launched oka-project.com as the home for media, web tools, services, and other independent projects.
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Brought independent projects together under oka-project
Brought media, web tools, services, and other independent work together under the oka-project umbrella.
2024
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Launched the current oka-vrc travelogue site
Full-scale operation began as a media site introducing VRChat worlds (Japanese).
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Started writing about VRChat worlds
Began publishing VRChat world introductions on note (a Japanese blogging platform).
2023
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Started VRChat
It began with a hunch: this might be a free way to spend time in a native English-speaking environment.
now, to be continued.
2026
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Released the Tojiru PDF merge and split tool
Released Tojiru, a free browser-based tool for merging, reordering, rotating, removing and splitting PDF pages.
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Released the Karuku image compression and resizing tool
Released Karuku, a browser-based image tool for resizing, compression, JPEG/PNG/WebP conversion, metadata removal and batch exports.
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Released the browser game Sai no Kawara
Released a small browser game built around a simple loop of stacking and collapse, expanding oka-project beyond utility tools into experimental interactive work.
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Released the Yomu Markdown editor
Released Yomu, a browser-based Markdown editor for writing and adapting content for different publishing destinations.
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Released Markdown Viewer
Released Markdown Viewer, a browser tool that previews .md files on the spot. The first tool published on oka-project.
Who makes it?
oka is an independent maker working on web tools, services, and media. After years of writing and publishing online, I started the VRChat world-guide media project “oka-vrc travelogue” in 2024, documenting places I had actually visited and turning those experiences into useful, searchable information.
Read more
In 2026, I brought these activities together under oka-project, connecting what I had learned from web marketing with personal development and publishing. Today I build browser-based tools, run media projects, and experiment with AI and information design.
The aim is simple: reduce the number of times people miss an option because they did not know it existed or because the available tools were harder to use than they needed to be.
What is it built with?
oka-project is designed, built, and operated by one person. This site is also a working example of that process.
- This site
- Astro (SSR) + TypeScript, with database-backed content and a self-built admin panel.
- Infrastructure
- Cloudflare Workers, D1, Email Routing, and Turnstile, using a serverless architecture.
- Browser tools
- Small web tools built mostly with plain HTML, CSS, and JavaScript, with a strict CSP that limits outside connections.
- Current areas
- Browser utilities and small interactive experiments; AI-assisted research, information organization, and publishing workflows.
Who runs it, and how do I get in touch?
- Project name
- oka-project
- Run by
- oka
- Active since
- 2024
- Activities
- Development and operation of web services and tools, and media publishing
- Contact
- Contact page
What else do people ask?
What is oka-project?
oka-project is an independent project run by oka. It starts from friction found in everyday life, work, and the web, and turns that into browser-based tools and services. It also includes media projects such as the Japanese VRChat world guide “oka-vrc travelogue,” along with notes about what was built and learned along the way.
What happens to the data I enter into a tool?
The browser-only tools published at oka-project.com/tools are designed to process what you type or open inside your browser rather than sending it to an external server. Supported tools also restrict outbound connections at the page level. Check each tool page for its exact behavior.
Can I ask about using or adopting a service?
Yes. Use the contact page. Services that are still in preparation are open to early inquiries too. Replies can take two to three days.
Do you take on commissioned work?
This is a one-person project, so I can't take every request, but depending on the scope I do discuss production, development, and placement. Send a short outline through the contact page to start.
Are the web tools free?
The web tools currently published at oka-project.com/tools are free to use. If a future service or feature is paid, that will be stated clearly on its page before any charge applies.
Do I need an account to use the tools?
No. The tools published today work without any sign-up. If a future service requires registration, its page will say so clearly.
Where do I report a bug or request an improvement?
Through the contact page. For bugs, it helps to include the tool name, what happened, and your browser and device, as far as you know them.
Where can I find new tools and updates?
New tools and notable updates are announced in the News and Blog sections of this site. Each service and tool page also shows its current state.
Can I suggest a tool I'd like to see?
Yes, through the contact page. I can't promise to build everything, but requests are a real input when deciding on new tools and improvements to existing ones.
Thanks for reading. Questions and requests are welcome, in English or Japanese.Contact