Universal
File Explorer
A cross-platform desktop application for inspecting the internal structure and metadata of files. Hex data, parsed structure, visual layout, and validation results — all in one place.
A cross-platform desktop application for inspecting the internal structure and metadata of files. Hex data, parsed structure, visual layout, and validation results — all in one place.
Everything you need to know about the file without opening it in a dedicated tool: filesystem attributes, format-specific metadata, key/value details pulled straight from the file's header.
Graphical representations that depend on the format. File maps show how a file divides into segments. Image files render inline. Plugin authors can contribute whatever visualization makes the format legible.
A proper hex viewer with synchronized offset, byte, and ASCII columns. Search for byte patterns or text. Display numeric values in hex, decimal, binary, or ASCII with a single toggle.
A tree of the file's segments with a detail panel. Expand nodes to drill into nested records. Select any node to see its fields, offsets, and decoded values side-by-side.
Each format plugin can emit a validation log: info, warnings, and errors that point to specific offsets. Useful for debugging corrupted files or spotting files that don't follow the spec.
The details that matter when you use a tool every day — fast identification, clean shortcuts, an extension model that doesn't require forking the project.
Detects format from magic bytes, extension, and MIME type together. The signature database is XML-driven and extendable without writing code.
Open a file by dropping it on the window. No project concept, no workspace to manage — ufex is a single-file utility by design.
Find byte patterns or text within the file. Matches highlight in the hex view and jump into position on selection.
Add new formats by dropping a .NET assembly in the plugins/ folder. Reference the Ufex.API, parse, emit structure. Third parties can ship support without touching core.
Switch between hexadecimal, decimal, binary, and ASCII for numeric values throughout the UI — useful when a spec thinks in one base and you think in another.
Built on .NET and Avalonia. No cloud, no account, no telemetry. Your files never leave your machine.
Pick your installer and go. All builds are produced by GitHub Actions from the source in the public repository — you can verify every release.
All releases, changelogs, and previous versions are on GitHub Releases. Source code is on the project repository. Licensed under Apache 2.0.