In development

macOSWindows

The file manager
you can extend.

For macOS and Windows, keyboard-first, built with developers in mind.
Even the terminal is an extension.

Confirm by email, and we write when it's ready.

A Git repository in Ostio Files on macOS: the Changes sidebar, Git status on every row, a terminal panel and a rendered README.
  • New tab
  • Open in the other pane
  • Run any command
  • Quick Look
  • Go to folder
  • Rename in place
  • See inside every subfolder
  • Undo a whole move

command palette

Every action has a name.

One key opens it and typing narrows it. Extensions add their commands to the same list.

An animation of the command palette: typing a few letters narrows the app's commands, and Enter runs the highlighted one.

✦   ai assistant

Say what you want. Blob will do it.

Tell Blob what you need in plain words, like “tag March’s invoices Work”. It uses the app’s own commands, shows you the files, and changes nothing until you press the button.

  • thinking
  • found it
  • waiting for your OK

open with ✦ next to Details

Blob's chat panel in Ostio Files on macOS: it found 4 invoices from March and waits for the OK to tag them Work.

extensions

Extend every part of it.

Terminal is an extension. Your extension can add a toolbar button that opens its own left, right or bottom panel, and preview file types Ostio Files doesn't know yet.

  1. 01left panele.g. Changes from Git
  2. 02toolbare.g. the branch chip
  3. 03content panele.g. a Git status column
  4. 04bottom panele.g. Terminal
  5. 05right panele.g. Markdown preview

built in

Already in the box.

The small things that make everyday file work easier.

  • The Downloads tab dragged into the Studio folder, with Left, Top, As tab, Bottom and Right to choose where it opens.

    01 · split view

    Two folders, side by side.

    Drag a tab or a folder onto the window and drop it left, right, above or below to open it in a second pane.

  • The Shelf beside the Studio folder, holding five items from other folders, with Copy here and Move here.

    02 · shelf

    Gather files from anywhere.

    Drop files on the Shelf as you browse. When you reach the folder they belong in, copy or move them all at once.

  • Studio as a grid with a grey Archive folder and the Design folder turning pink in the Customize folder popover.

    03 · folder colors

    Folders you can tell apart.

    Give a folder a color, so the one you need stands out in every view.

  • File operations: a copy to Workspace and an extraction in progress, a failed delete with Try Again, and two finished items with Undo.

    04 · status center

    Every copy, in one place.

    Copies, moves and extractions run in the background. Cancel one, retry what failed, undo a move or a rename.

  • Disk usage of the Studio folder: a map of blocks sized by what each folder takes, beside a list of the largest items.

    05 · disk usage

    See what fills the drive.

    Open any folder as a map of what takes the space. Click a block to go inside it, and clear out what you no longer need from the list.

walkthrough

One task, start to finish.

Find a file, look at it, change your mind. Four keys, and you already know them from the Mac.

Step 1: Open a tab for the job. A new tab starts on Home, next to the ones you have.

copy path

Paths, the way
you paste them.

Right-click any file and copy its path as you need it: the full path or relative to the project. No retyping, no fixing spaces.

Copy path · right-click or Option-Command-C

and more

Much more, waiting for you.

A few of the things you’ll find as you go.

  • Tags
  • Four layouts
  • All files in subfolders
  • Saved searches
  • Reopen closed tabs
  • Show hidden items
  • Folders first
  • Pin to sidebar
  • Group by
  • Invert selection
  • Zips as folders
  • Compress and extract
  • Compare folders
  • Free up cloud space
  • Symbolic and hard links
  • New empty file
  • Open in a new window
  • File properties
  • Network drives
  • Eject
  • Restore deleted files
  • Light and dark
  • Settings as a file
  • Open in your editor
  • Open in Terminal
  • Open with any app
  • Rotate images
  • Set as desktop picture

Get in early.

Confirm by email, and we write when it's ready.