Sigma File Manager

What is Sigma File Manager?

Sigma File Manager is a free, open-source file manager for Windows and Linux. It is designed as an alternative to the default system file browser, with a focus on faster navigation, keyboard-driven workflows, and working with files across local folders and network locations.

The app combines familiar file management tasks such as browsing folders, copying and moving files, and previewing content with more advanced tools like global search, tabs, split view, extensions, and LAN file sharing. The project is actively developed and distributed through multiple installation options, including Windows package channels and Linux packages.

Key Features

• Smart global search: quickly searches files and folders and includes typo tolerance for wrong case, missing symbols, reordered words, and missing extensions.
• Tabs and split view: lets users keep several folders open and split a tab into two panes for side-by-side file navigation and transfers.
• Extensions and marketplace: supports add-ons from a built-in marketplace or local folders, with extensions that can add commands, pages, shortcuts, settings, and more.
• LAN file sharing: shares or streams files and folders over a local network, with browser access, QR codes, and FTP support.
• Command palette and shortcuts: provides keyboard-friendly access to common actions and extension commands.
• Quick View and archive tools: previews images, videos, audio, PDFs, and text files with Space, and can compress to or extract from ZIP archives inside the app.
• Advanced navigation and filtering: includes an address bar with autocomplete, item filters, tags, dashboard access, and smart drag-and-drop behavior.
• Platform-specific support: can replace File Explorer for many everyday actions on Windows, and includes support for WSL drives and several network location types in alpha.

How to Use Sigma File Manager

Users typically install Sigma File Manager on Windows or Linux, then use it as their main file browser or alongside the default manager. After opening it, they can navigate with the address bar, search across folders with global search, open tabs for different locations, and use split view when moving files between directories.

For more specialized workflows, users can preview files with Quick View, apply filters in large folders, organize items with tags, share files over the local network, or install extensions from the marketplace to add extra commands and functions.

Use Cases

• Fast file lookup across large drives: useful when a user needs to find a folder or document by partial name, incorrect spelling, or incomplete filename details.
• Side-by-side file transfers: helpful for comparing two directories, moving assets between projects, or organizing downloads into structured folders.
• Keyboard-first desktop navigation: useful for users who prefer shortcuts, command palettes, and direct path entry over mouse-heavy browsing.
• Local network sharing: suitable for sending files to another device on the same network without relying on a separate sharing app.
• Media and document review: useful for quickly previewing images, videos, audio files, PDFs, and text without opening external programs.

FAQ

Is Sigma File Manager open source? Yes. The project is described as free and open source.

Which operating systems does it support? It is available for Windows and Linux. The source also notes that macOS is supported, but builds are not provided.

Can it replace the default file manager? On Windows, Sigma can replace File Explorer for most everyday file actions.

Does it support network or remote locations? Yes, the source mentions LAN file sharing and alpha-stage support for network locations such as SSHFS, NFS, SMB, and CIFS.

Can it be extended with add-ons? Yes. Sigma includes an extensions system and a marketplace for installing add-ons from built-in or local sources.

Alternatives

• Default system file managers such as File Explorer on Windows or the standard Linux file browser: these prioritize familiarity and OS integration, while Sigma adds tabs, split view, global search, and extensions.
• Other third-party desktop file managers: these are the closest comparison for users who want a replacement browser with more control over navigation and workspace layout.
• Command-line file tools and terminal-based file managers: these suit users who prefer text-first workflows, while Sigma keeps a graphical interface with previews, drag and drop, and sharing features.
• Cloud storage or sharing apps: these may help with remote file access, while Sigma’s built-in LAN sharing is aimed at local-network transfer and browsing.