Cloud storage decision
Transmit
A small team or single developer can build a useful subset (SFTP+S3 transfers, resume, bookmarks), but reproducing Panic's full native polish, extra protocols, and sync features is larger work—use open-source clients for a fuller replacement.
Visit website↗Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Transmit alternatives, with the arithmetic →
What a replacement has to do
- Connect to a remote endpoint (SFTP or S3), browse remote files, upload/download files with resume and progress, and save connection credentials/bookmarks.
What it still won’t have
- Panic's polished native macOS UX and platform-specific integrations
- Panic Sync for cross-device credential/bookmark sync
- Official support and updates from Panic
- Any proprietary reliability/edge-case fixes and platform polish
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Transmit does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal macOS-native file-transfer client in Swift + SwiftUI that supports SFTP and S3 endpoints. In scope: connect to SFTP (using libssh2 or a Swift SSH wrapper) and S3 (AWS SDK), list remote directories/buckets, download and upload files with progress and resume, store encrypted credentials/bookmarks locally, and a simple transfer queue UI. Out of scope: FTP, FTPS, advanced GUI polish, cross-platform builds, Panic Sync. Include error handling for network and auth failures, unit tests for transfer logic, and end-to-end test scripts for SFTP and S3 transfers.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 3 cited sources+3
- Evidence score60
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productPanic product page
- open sourceiterate-ch/cyberduck
- open sourcewinscp/winscp
Integrity checks
What held up, and what did not.
