Costs rise whenever the team grows
Invite employees and external collaborators without another per-user fee.
Sola Fileserver ServiceUnlimited users · Hosted in Japan
A private team file server,
without per-user pricing.
Start with 20 GB free and no credit card. In minutes, SFS provisions an isolated Nextcloud environment for your team. Pay only for the storage you need.
Stay on the free plan and add storage only when you need it.
- 20 GB free
- No credit card
- Unlimited users
- Hosted in Japan
Built for teams like yours
Start secure file sharing without per-user pricing or the burden of running your own server.
Large files need a safer route
Share with clients using expiry dates and passwords instead of email attachments.
Server operations take too much time
Leave setup, updates and monitoring to SFS and focus on your work.
Japan hosting and isolation matter
Keep data in Japan in an isolated Nextcloud environment for your team.
Why choose SFS
Everything you need for file sharing, ready to use.
Your own environment, automatically
Within minutes of signing up, you get your own dedicated Nextcloud and URL (yourname.sfs.sola.inc). An isolated environment, never shared with other companies.
Hosted in Japan
All data is stored on our own servers in Japan, designed and operated by Sola — a company where 80% of staff are engineers.
Unlimited users
No extra charge no matter how many people use it. Pricing is based on storage alone — simple and predictable.
Secure external sharing
Set expiry dates, passwords, and download limits on share links. Exchange files with clients and partners safely.
Two-factor authentication
One-time-code two-factor authentication is built in, so you can strengthen account protection from day one.
Use it anywhere
Access from your browser, the Windows/Mac sync client, or the official Nextcloud iOS/Android apps.
See it in action
From file management to editing office documents — all in your browser.
Open and co-edit Word, Excel and PowerPoint files right in your browser — no app install required.
Recent files, events and tasks at a glance.
Keep track of what your team is doing.
Compare ways to deploy
SFS combines storage-based pricing with managed operations.
| Comparison | SFS | Typical per-user cloud | Self-hosted Nextcloud |
|---|---|---|---|
| Main cost basis | Storage capacity | Usually users and plan | Hardware, setup and operations |
| Environment | Isolated for each team | Depends on the service | Depends on your setup |
| Setup and updates | Handled by SFS | Handled by provider | Handled by your team |
| Data region | Japan | Depends on contract and settings | Depends on hosting location |
| Time to start | Minutes after signup | Usually a short time | Requires setup work |
This compares common deployment models. Actual features and terms vary by service, contract and configuration.
Simple pricing
Start free and add storage only when you need it. All prices include tax; users are always unlimited.
Free
¥0/mo
- 20GB storage
- Unlimited users
- Dedicated Nextcloud environment
- Share links & two-factor auth
Add as you grow
Storage packs
¥1,200〜 /mo
- +100GB ¥1,200/mo / ¥13,200/yr
- +500GB ¥5,000/mo / ¥55,000/yr
- +1TB ¥9,000/mo / ¥99,000/yr
- Choose monthly or annual billing. Annual billing includes one month free
Add paid storage from your dashboard after signing up.
Storage changes are prorated within the billing period. After cancellation you can keep using the service until the end of the current billing period. There are no prorated refunds for mid-term cancellation or account deletion.
Need approval workflows, large capacity, or a security review? Talk to us about SFS
Frequently asked questions
Check the free plan, operations and data handling before you start.
Does the free plan expire?
There is no set expiry date. An inactive Free environment may be automatically hibernated, then starts again when accessed.
How many users does unlimited mean?
There is no per-user fee or plan-level user cap. Use remains subject to your selected storage capacity and the Terms of Use.
Where is data stored?
Data is stored on servers operated by Sola in Japan. Each team gets a logically isolated Nextcloud environment, not a physically dedicated server.
What support and response times are included?
Free and storage-pack plans include online, best-effort support. There is no SLA guaranteeing uptime or response times.
How do backups and recovery work?
We take daily encrypted backups for disaster recovery. The initial service is in one site and recovery of every point in time is not guaranteed. Keep your own backup of important data as well.
Can I migrate from another service?
You can move files through the browser, official Nextcloud sync clients or WebDAV. Contact us first for large migrations or specific requirements.
Can I export data when cancelling?
After cancelling a paid subscription, you can use the service until the billing period ends and export data with standard tools. Account deletion is a separate action that starts deleting the environment and data immediately, so save anything you need first.
What changes when I add a paid plan?
Your user access and core features stay the same while storage capacity increases. Add a monthly or annual storage pack from the dashboard after signing up.
Why teams can rely on SFS
Operated by
SFS is operated by Sola K.K. Company
Data stored in Japan
Your data is stored on servers we operate ourselves in Japan.
Isolated dedicated environment
Each team gets its own isolated Nextcloud environment, with two-factor authentication and permission- and expiry-controlled share links.
Terms & policies
Terms of Use ・ Privacy Policy ・ Legal Notice (Commercial Transactions)
UPDATES
Recent updates
Improvement
Verification emails can now be resent
If your verification email is missing or has expired, you can now request a new one.
Improvement
Expanded guidance in Japanese and English
More emails and error screens are now available in Japanese and English, with clearer next steps.
New feature
Improved large-file uploads
Chunked uploads have been improved for more reliable transfers of large files.
New feature
Added storage packs and annual billing
Storage packs are now available with monthly or annual billing, together with invoices and receipts.
Announcement
SFS is now available
SFS is now available, giving teams their own Nextcloud environment in minutes.
Ready to give it a try?
No credit card needed. Your own file server is just a few minutes away.