FAQ
Frequently asked questions.
What file size limit is there?
No limit. Files stream through without buffering, so there's no practical size restriction. Upload a 10KB CSV or a 2GB backup — same endpoint.
Can I download files too, not just upload?
Yes. Use GET /api/download/:connectionId?path=/file.csv to pull files from your server through PushFTP's fixed IP.
What protocols are supported?
SFTP (SSH-based), FTP, and Amazon S3. All connections are encrypted.
What happens if a transfer fails?
You get a detailed error response with the reason, a failed transfer entry in your dashboard, and an email notification. No silent failures.
Is the fixed IP shared between customers?
Yes — all PushFTP traffic goes through a single shared EU server. The IP whitelist is a convenience for your firewall, not a security boundary. Always use SFTP with strong credentials or SSH keys as your primary security layer.
Do you store my files?
No. Files are forwarded immediately and never stored on PushFTP servers. We only keep transfer metadata (filename, size, status).
Where are your servers?
EU data center in Germany (Hetzner). All data stays in the EU.
Can I rename files during upload?
Yes. Use filename templates with tokens like {date}, {timestamp}, {uuid}. Example: report.csv → report-2026-03-31.csv.
Can I prevent overwriting existing files?
Yes. Set overwrite=false in your upload request. PushFTP will return 409 if the file already exists.
Does it work with Zapier, Make, and n8n?
Yes. Any tool that can send an HTTP request works. We have step-by-step guides for Zapier, Make, and n8n.
Do all plans get the fixed IP?
Yes. Every plan — including free — uses the same fixed IP. It's the core of the product.
What security measures does PushFTP use?
Credentials are encrypted with AES-256-GCM at rest, passwords are bcrypt-hashed, all connections use TLS/SSH, and we never store your files. We recommend using SFTP with SSH keys for maximum security. The shared IP whitelist adds firewall convenience but should not be your only security layer.
How do I get support?
Use the contact form. Business plan gets priority response.