A focused Transmit alternative for FTP, FTPS and SFTP

Transmit 5 by Panic is the benchmark for Mac file transfer apps, and it earns its 45 $ price. Upstream asks a different question: what if you only need FTP, FTPS, SFTP and an S3 bucket, done natively — and want to try it without a clock running?

Download Upstream freeSee all features

Let’s be clear: Transmit is a fantastic app with over twenty years of polish, and if you rely on its cloud connectors — S3, Backblaze, Dropbox and a dozen more — or on Panic Sync across teams, it is worth every dollar.

Upstream targets the developer or sysadmin who lives on classic servers. You get the dual-pane workflow, a relentless transfer queue, folder sync with dry-run, watch-mode remote editing and Keychain security — with a free core and a single $29.99 unlock (price varies by App Store country), distributed through the Mac App Store with Family Sharing.

Should you buy Transmit, or try Upstream first?

Transmit is the safe answer and it earns its price — if you need its cloud connectors or Panic Sync, buy it and stop reading. Try Upstream first if you only ever connect to FTP, FTPS and SFTP servers, because evaluating it costs nothing and no clock runs out.

This is the one comparison on the site where the competitor is not the compromise choice. Transmit has twenty years of edge cases handled, a company behind it that has shipped Mac software since 1997, and a connector list Upstream will not match. Pretending otherwise would waste your time.

The question worth asking is narrower: what fraction of that are you going to use? For a developer who deploys to hosting and a VPS, the answer is often three protocols, a bucket and a queue — and that is the shape Upstream is built to. You get a dual-pane workflow, folder sync with dry-run, watch-mode editing and Keychain security, with a free core to test it against your actual servers before deciding.

Upstream vs Transmit, feature by feature

An honest snapshot — a ✓ means the feature ships today, notes mark the differences that matter.

FeatureUpstreamTransmit
PriceFree · FULL $29.99 once (US; varies by store)45 $ one-time (direct)
FTP, FTPS & SFTP✓✓
S3-compatible storage (S3, B2, R2)FULL — buckets as folders✓
Dropbox, Google Drive, Azure…—✓
Dual-pane local + remote view✓✓
Native Mac appSwift & SwiftNIOYes (veteran native codebase)
Folder syncFULL — with dry-run preview✓
Edit remote files with auto-uploadFULL — watch mode on save✓
⌘K command palette✓—
Site sync across MacsFULL — iCloudPanic Sync
Mac App Store + Family Sharing✓Direct sale (MAS version differs)
Free tier durationForever (no expiry)7-day trial only
Import sites from FileZilla / SSH config✓Imports from several clients

Where Transmit is still the right choice

  • You need Dropbox, Google Drive, Azure, WebDAV and the other cloud connectors in the same window — Upstream stops at servers and S3-compatible buckets.
  • You depend on Panic Sync to share servers across a team.
  • You want two decades of refinement and edge-case coverage, and the 45 $ is not a factor.

Where Upstream makes more sense

  • Focused scope: You connect to FTP, FTPS, SFTP and S3-compatible buckets — no paying 45 $ for cloud connectors you never open.
  • A genuinely unlimited free tier: Manage and transfer to unlimited servers with SSH keys forever without an expiring trial clock.
  • Info Panel with inline "Edit Here" (⌥⌘I): Inspect images, code, and permissions, or fix remote configuration lines instantly without launching an external IDE.
  • Modern macOS integration: App Sandbox, passwords in the Keychain, a ⌘K command palette, transfer count on the Dock icon, and (with FULL) upload actions for Shortcuts and Finder Quick Actions.
  • Batch Rename (FULL): Native regex find and replace, sequential numbering, case rules, and collision preview before touching files.
  • Single one-time purchase ($29.99 in the US; varies by store) via the Mac App Store with Family Sharing — no subscription.

Coming from another client?

Upstream imports server lists from FileZilla’s sitemanager.xml and from your ~/.ssh/config, for free. A direct Transmit favorites importer is on the roadmap — until then, ~/.ssh/config covers most SFTP setups.

What actually changes day to day

Five differences you notice within the first week — and the reasoning behind each.

What you are actually paying for

Transmit’s 45 $ buys FTP, FTPS and SFTP plus more than a dozen cloud connectors — S3, Backblaze B2, Google Drive, Dropbox, Azure, WebDAV and the rest — in one window. If you open three of them regularly, it is a bargain, and this page is not going to argue otherwise.

Unlocking Upstream FULL costs $29.99 — roughly a third less, which is real but not the kind of gap that should decide anything on its own. The question worth asking is what the money buys. Upstream spends it on depth: dry-run sync, auto-upload on save, watch-mode editing, S3 buckets, tabs, iCloud site sync. A much shorter feature list, deliberately, and no connectors you never open.

A free core instead of a 7-day clock

Transmit gives you seven days to decide. That is enough to form an impression and rarely enough to hit the edge case that actually matters — the host with the awkward passive port range, the 4 GB upload over hotel Wi-Fi, the server that renegotiates TLS mid-transfer.

Upstream’s free tier has no timer and no site limit: unlimited saved servers, the concurrent queue, Quick Look, CHMOD and full file management. You can run it as your everyday client for a month and only pay if you want the automation. If it does not handle your servers, you find out for free.

The Info Panel and quick inline tweaks (⌥⌘I)

When you need to adjust a single line in a .htaccess, wp-config.php or server configuration, launching a heavy IDE, waiting for it to load, saving, and waiting for the re-upload adds friction.

Upstream features a dedicated Info Panel (⌥⌘I): select any file to inspect image previews, permissions, owner, size and public URL mappings. For text and configuration files, Edit Here lets you fix a line right inside the panel and save it back to the server. Automatic smart quotes and dashes are switched off, so a PHP or config file never picks up a curly quote that breaks it.

Sold through the App Store, with the consequences

Transmit is sold direct by Panic, which is why its features are not constrained by the App Sandbox. Upstream goes the other way: Mac App Store only, which means the App Sandbox, automatic updates, Apple’s refund process and Family Sharing on the FULL purchase.

That is a genuine trade rather than a win. Sandboxing costs some freedom at the edges; what you get is that the app can only reach the folders you grant it, and credentials live in the Keychain rather than in the app’s own store. Using an SSH key with the client shows how that works for key-based logins.

Sync and remote editing, compared

Both apps sync folders and both edit remote files. Transmit’s versions are mature and well-integrated. The differences are in the details: Upstream’s sync shows a colour-coded dry-run of every upload, overwrite and delete before it runs — see syncing folders over FTP — and its watch-mode editing re-uploads on every save from VS Code, TextMate or Xcode rather than on close.

Neither is dramatically better. If you already know Transmit’s workflow and it fits your head, that familiarity is worth more than any feature bullet on this page.

Common questions

Is Upstream as complete as Transmit?
No — and it does not try to be. Transmit covers a dozen cloud services and twenty years of edge cases; Upstream covers FTP, FTPS, SFTP and S3-compatible storage with a native engine and stops there. It also costs less — $29.99 against 45 $ — but the scope is the reason to choose it, not the 15 $.
Can I try Upstream before paying?
Yes, indefinitely. The free core has no time limit and no site limit — unlimited servers, the concurrent queue, Quick Look and full file management. FULL adds automation for $29.99 once — that is the US price, and other App Stores show the equivalent local tier — and you can try every FULL feature free for 7 days from inside the app with no charge.
Does Upstream support S3, Backblaze B2 and Cloudflare R2 like Transmit?
Yes: with FULL, Amazon S3, Backblaze B2, Cloudflare R2, Wasabi and MinIO open as folders in the same dual panes as your servers, with multipart upload, resume, folder sync and auto-upload on save.
Can I edit remote files in Upstream without an external editor?
For small fixes, yes. Both apps open remote files in your own editor (VS Code, BBEdit, Nova…) and re-upload on save. Upstream also has an Info panel (⌥⌘I) with Edit Here, a plain-text editor for the one-line fix in a .htaccess or wp-config.php without launching another app — with smart quotes always off, so PHP and config files stay valid.
Does Upstream have batch rename?
Yes — Upstream FULL includes Batch Rename with find and replace (regular expressions too), prefix and suffix, numbering, letter case and extension changes, with a live preview. A name conflict blocks the rename instead of overwriting a file.
Does Upstream sync my sites across Macs like Panic Sync?
Yes, with FULL: saved sites and bookmarks sync across your Macs through iCloud, and the purchase itself restores on any Mac signed into your Apple Account.
What is the best Transmit alternative for Mac?
It depends on why you are looking. If you want free and open source, FileZilla or Cyberduck. If you want a native app narrowed to FTP, FTPS and SFTP that you can run indefinitely before paying anything, Upstream. On price, Upstream FULL is $29.99 against Transmit’s 45 $ — cheaper, though the bigger difference is that its core stays free with no time limit.
Is there a free alternative to Transmit?
Yes — Upstream’s free tier is a complete client: unlimited saved sites, FTP, FTPS and SFTP, the concurrent transfer queue, Quick Look, CHMOD and full file management, with no time limit. FileZilla and Cyberduck are the free open-source options. Transmit itself ships a 7-day trial rather than a free tier.
How much does Transmit cost?
Transmit 5 is 45 $ as a one-time purchase direct from Panic, with a 7-day trial. Upstream FULL is a $29.99 one-time In-App Purchase, converted to the equivalent tier in your local App Store, on top of a core that stays free and never expires. So it is about a third less than Transmit — and you can use the free tier indefinitely before deciding.
Can Upstream import my Transmit favourites?
Not yet — Transmit keeps favourites in its own store and a direct importer is on the roadmap. In the meantime Import ▸ From SSH config brings across every host in ~/.ssh/config, which covers most SFTP setups, and the FileZilla XML importer is there if you still have an export.
Is Transmit still worth buying in 2026?
If you use its cloud connectors or Panic Sync, yes — it is a mature, well-supported app and 45 $ once is not much for something you open daily. The case for looking elsewhere is narrower than people assume: it is mostly about paying for a dozen connectors you never open.

Try Upstream free, decide later

The core is free forever — unlimited FTP, FTPS and SFTP sites, the concurrent queue, Quick Look and full file management. No trial clock, no subscription.

Download on the Mac App Store

Read next: Connect to an FTP server on a Mac · Edit remote files with auto-upload · SSH keys in an SFTP client

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