Flow.js Alternatives

FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.

Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.

Open Source freemium $59.0 / Monthly

Online gallery and proofing platform for creative professionals.

Try for free freemium $8.0 / Monthly

Transmit is an FTP client for Mac OS X and Mac OS Classic (which is unsupported).

A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.

Open Source

The most advanced dual pane file manager and file transfer client for macOS.

Viper FTP is an FTP client and file manager for macOS.

paid Free Trial $12.95 / Annually

Versatile file uploading and processing service for developers

Secure Transport is a high-speed file transfer (MFT) gateway.

Secure file sharing & FTP hosting for the ​enterprise.

GoAnywhere is an enterprise-level solution for automating, securing and streamlining file transfers for organizations of all sizes.

FTP Today offers private and secure file transfer/sharing via a hosted Software-as-a-Service model.

FTP Attachments is an ASP.NET based application on salesforce that allows users to upload and store attachments on their personal servers.

File uploading, media processing & content delivery for modern web apps

freemium $79.0 / Monthly (100,000 monthly operations, 75 GB monthly traffic, 50 GB storage)