Caelum
The file manager Finder should have been.
Four view modes, quad-pane layouts, tabs and a batch rename that can be undone — in one native Swift app with no subscription.
Free during launch Every build on this site is free during the launch period. Paid editions and App Store listings come later; nothing here needs an account or a key.
macOS 15+ Native Swift No subscription Mac tools v0.4.0
Screenshot pending
A clean capture is coming; the window is worth showing properly.
The build is real; the picture will follow.
01What's inside
The specifics, with numbers.
The things a general-purpose tool does not do.
01
Four views, four panes
Icon, list with detail columns, column/browser and gallery; single, split, stacked and 2×2 layouts; tabs; per-directory column widths.
02
Batch rename with a safety net
Regex find/replace, prefixes, suffixes, numbering, dates, case and extensions, with live conflict checking, savable presets and undo.
03
Archive and hash in place
Compress ZIP and TAR.GZ; extract ZIP, TAR, TAR.GZ and GZ; compute or copy MD5, SHA-1, SHA-256 and SHA-512.
04
50 steps of undo
Operation history keeps 50 entries with per-action undo; copy, move, delete and duplicate run through a serial task queue with progress.
05
Search the folder you are in
Multiple keywords, wildcards and regex, plus folder-size calculation, hidden files, natural sort and Quick Look.
06
New-file templates
Text, Markdown, JSON, CSV, RTF and shell templates with $date(format) variables.
02Gallery
A closer look.
Real screenshots where they exist. Where a capture is missing, the frame says so.
Screenshot pending
Quad-pane layout.
The build is real; the picture will follow.
Screenshot pending
Batch rename with live preview.
The build is real; the picture will follow.
Screenshot pending
Operation history and undo.
The build is real; the picture will follow.
03Get it
Download the build.
Everything is free during launch — the same binaries the studio tests. No account, no key.
Free during launch Every build on this site is free during the launch period. Paid editions and App Store listings come later; nothing here needs an account or a key.
macOS builds are Developer ID signed and notarised by Apple. Checksums are published with the release manifest.
Artifacts over the Pages file limit stay pending until the binary bucket is live. Ask and we will send those directly.
macOS
Caelum-Pro-0.4.0-macos.zip
1.6 MB
04More from the bench
Keep looking around.
Other tools from the same bench, built to the same rules.
Point it at your folders. Find any document again with a sentence.
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ExploreMac ↔ Windows file transfer over your own LAN. No cloud, no sharing setup.
Explore