Dual-pane file manager for all your clouds: Google Drive, OneDrive, S3, NAS and 40+ more. A desktop GUI for rclone that keeps your credentials on your machine.
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Cross-platform rclone GUI and cloud file manager. Browse, transfer and sync files across cloud storage, NAS and local drives on Windows, macOS and Linux, or self-host with Docker.
Your files live everywhere: a laptop, a NAS, two or three clouds, an S3 bucket for archives.
Ultra Explorer puts all of them in one window.
Two panes, any two storages. Drag files from OneDrive to your NAS, or between two S3 buckets.
Nothing changes by surprise. Conflicts always ask, and every synchronization can be previewed
before it runs.
See where your space goes. Four interactive maps of any folder, on any storage, and a forecast
of when each storage will be full.
Native and light. A Rust core with a native desktop app, or a self-hosted Docker server.
Private by design. No telemetry. Your keys stay in rclone.conf on your machine and your files
never pass through our servers.
Features
Dual-pane explorer
Two independent panels, each with its own storage, tabs and navigation history. Filter a folder as
you type, open the context menu for copy, move, rename or delete, and drag files across panes to
transfer them, from local to cloud or between two remote storages.
Drag and drop transfers between any two storages
No silent overwrites: every conflict asks you to overwrite, skip or keep both
Tabs with saved paths and filters
Folder sizes in one click: click the dash in the Size column to total a folder, subfolders
included, then click the size to see how many objects it holds
Copy path with Option (Shift on Windows and Linux) in the context menu, and paste a path into
the address bar to go straight back to it
Resizable columns in the Details view, remembered per pane
40+ storages
Ultra Explorer uses rclone to connect natively to more than 40 clouds, object stores, NAS and
network protocols. Add a storage with a guided form, or import the rclone.conf you already have
and keep using it from the command line.
Open the Properties of a video, audio or image file to see inside it without downloading it, on any
storage. The MediaInfo tab shows the container, duration and bit rate, then each track: codec,
resolution, frame rate, HDR, channels and language. Switch to MediaInfo's own Detailed, Text, JSON
or XML report, ready to copy. Any file also shows its MD5, SHA-1 and SHA-256 hashes.
Storage capacity and forecasts
Ultra Explorer keeps a usage history for each storage and tells you how much it grew this week and
when it will be full. The capacity window charts the last 7, 30 or 90 days with the days it reaches
80, 90 and 100 %, and the dashboard ranks your storages by how soon they will be full.
For a NAS share or server that does not report its size, enter the size of its disk: the app then
measures what its folders use and shows the free space.
Operations
Copies, moves, uploads and synchronizations run in the background and are all listed under
Operations, in a queue that never blocks the interface. Follow live throughput, inspect each job
(route, progress, speed, timeline), and pick up where you left off after a restart.
Synchronizations
Create a synchronization in six guided steps: route, behavior, rules and safety, schedule, review and
preview.
Safe Update copies new and changed files and never removes anything at the destination.
Exact Mirror makes the destination match the source.
Dry-run preview: see which files will be copied, updated or removed before anything changes.
Guardrails: exclusion rules and a maximum-deletion threshold.
Schedules: manual, interval, daily or weekly, with run history and logs.
Space analysis and cleanup
Scan any folder, on any storage, and explore it as a sunburst, treemap, circle pack or
tree. Zoom into a folder in one click and jump straight to it in the explorer.
To free space, drag a folder from the map to the bin, or right-click it and choose Set aside. The
map shows at once the space you would free, one click puts a folder back, and the folders set aside
are deleted only after you confirm.
Multi-cloud search
Search up to eight storages at once, in parallel. Start from a preset (documents, images,
archives…), refine with typed filters, and browse up to 50,000 results in a virtualized table with
the exact location of every file.
Limit a search to chosen folders at any depth, or match your text against the whole path with the
Paths kind instead of names only.
Dashboard, settings and shortcuts
Dashboard: connected storages, how soon each will be full, live throughput and recent activity.
Light, dark or system theme.
10 languages, switched without reloading: English, French, German, Spanish, Italian,
Portuguese, Chinese, Japanese, Korean and Russian.
Keyboard shortcuts for the explorer, listed in Settings and shown next to menu actions
(⌘ on macOS, Ctrl on Windows).
Docker, NAS and phone
The Docker edition serves the same interface to any browser. Run it on your NAS or home server and
install it on your phone's home screen as an app (PWA), with a layout built for touch: stacked panes,
a Select mode with an actions bar, and settings as a list.
The container runs unprivileged with a read-only root filesystem, and keeps its data in a single
volume. Step-by-step guides, including installing the app on a phone, are in the
documentation.
Unraid and TrueNAS
Unraid. The Community Applications template lives in
Sudo-Rahman/unraid-templates. It runs the container as nobody:users (99:100) and maps your shares to /mnt/local. Before the
first start, create its data folder with that owner:
TrueNAS (24.10 and later). Until the app is listed in the catalog, use Apps › Discover Apps ›
Custom App:
image ghcr.io/sudo-rahman/ultra-explorer with the release tag, user and group 568;
environment variable ULTRA_ADMIN_PASSWORD, and port 7373;
an ixVolume at /data, and a Host Path to the dataset to browse at /mnt/local.
Any non-root user works. The user you choose reads and writes the files in /mnt/local, so pick
one with access to them.
Free, Pro and Lifetime
Ultra Explorer is free to download and use. Pro (subscription) and Lifetime (one-time
purchase) unlock multi-cloud search, space analysis, scheduled synchronizations and the MediaInfo tab.
See ultra-explorer.app/pricing.
Privacy and security
No telemetry.
Your credentials stay with you: API keys, OAuth tokens and passwords are stored in
rclone.conf on your machine.
Direct connections: files move between your device and your storages; they never pass through
our servers.
Verified releases: every release ships SHA256SUMS and build provenance attestations, macOS
builds are signed and notarized, and in-app updates are signed.
Supported storages
Provider names and logos belong to their owners and only identify compatible services.
About this repository
This repository publishes the official Ultra Explorer installers, checksums and container images.
The application is developed in a private repository; only the release workflows, product visuals,
verified installers and runtime images are public here.
