Guides
Frequently asked questions
Answers reflect Feichuan’s currently public features and operating limits.
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These answers describe public Feichuan features, transfer limits, retention, browser sharing, APIs, and AI-agent delivery.
Check current rules
For an active transfer, the product interface and current plan rules remain authoritative.
Choose the delivery method
Use a share link when the recipient needs a browser entry point, and use a pickup code when a short handoff between devices is more convenient.
Check the current limits
File size, storage, retention, and account capabilities come from the current published product rules. Confirm those rules before preparing an important delivery.
Share with the intended recipient
Send links and pickup codes only to people who should receive the material. Keep an original copy of important files outside a temporary transfer.
Continue with related guidance
Use the related public pages to compare plans, read the current limits, and choose the right workflow for the next handoff.
Frequently asked questions
What is Feichuan?
Feichuan is a browser-based file delivery service for temporary files, text, links, pickup codes, and supported API workflows.
Is Feichuan free to use?
Visitor and Free options are available under the current published product limits.
How large can a file be?
The supported maximum depends on the current account type and upload method. Check the limits page before uploading.
How long are temporary transfers available?
Temporary content follows the current published retention period and is removed after it expires.
Do I need an account?
Visitors can start supported temporary transfers in the browser; an account enables the current account features.
Can I transfer between a phone and computer?
Yes. Upload on one device, then use a share link or pickup code in the browser on the other device.
How should I share safely?
Use trusted devices and networks, and send links or pickup codes only to their intended recipients.
Can an expired transfer be restored?
Expired temporary content is not available as an active share. Keep your own original copy.
What is a pickup code?
A pickup code is a short code used to open a matching temporary transfer on another device.
How do I send a file to someone?
Upload the file, then send the resulting share link or pickup code through your preferred channel.
How is this different from cloud storage?
Temporary delivery is for handoffs; long-term synchronization, archiving, and backup need an appropriate storage workflow.
Where can I find plan details?
The pricing page lists the current published plan capabilities and activation information.
Can I send a large file in chat?
Upload the file once and send the resulting browser link in your chat or email message.
Is an API available?
Supported REST API workflows can create temporary delivery links for trusted automation.
Can AI agents use Feichuan?
People, scripts, and AI agents can use delivery links; supported agent workflows can also upload through the API.