September 26, 2026 · 4 min read
SFTP vs FTPS
Two ways to stop using naked FTP. Different bones.
David KrugManila · @realDavidKrug
SFTP is a distinct protocol on top of SSH. FTPS is classic FTP wearing TLS. Both encrypt. They do not speak to each other.
The distinction that matters
Pick SFTP unless a partner’s ancient system says FTPS in a contract. Then do what the contract says, grumbling is allowed, and still don’t make your clients learn either word.
Pick SFTP unless a partner’s ancient system says FTPS in a contract. Then do what the contract says, grumbling is allowed, and still don’t make your clients learn either word.
In one table
| SFTP | FTPS | |
|---|---|---|
| What it is | File transfer over SSH | Classic FTP plus TLS |
| They interoperate | No | No |
| Firewalls | Usually fine | Historically fussy |
| Default choice | Yes, unless a contract says otherwise | When the contract says FTPS |
Written by
David Krug
Twenty-plus years of building cute little websites, and big ones, with an independent footprint. In the Philippines since 2016. Based in Manila, with two children and one amazing partner.
Follow the build · @realDavidKrug
