File management analyze tools for inspecting files and folders
Start with the property you need to inspect. Folder Size Analyzer covers storage use, Duplicate File Finder checks exact content matches, and File Age & Path-Length Analyzer shows age and path information. For one file, File Type Detector reads its signature, while File Encoding & Line-Ending Analyzer checks text structure.
Checks for folders and storage
These tools answer questions about a set of files. They show where space goes, which items match, and how old or long the paths are.
- Folder Size Analyzer reports total size, file and folder counts, the largest files and folders, and breakdowns by extension and category. A treemap and searchable tree or flat-list view show the folder in different ways.
- Duplicate File Finder compares selected files by size and SHA-256 content hash. It groups exact duplicates and reports the space those duplicates could occupy. It does not delete the files.
- File Age & Path-Length Analyzer groups items into age buckets, identifies the oldest and newest items, and marks inactive candidates using a threshold you choose. It checks relative, basename, and full-path lengths against documented Windows and POSIX limits.
Checks for file type and text structure
Use File Type Detector when you need the format indicated by a file's contents. It reads the file signature, also called magic bytes, and reports the detected format, extension, MIME type, and confidence. It flags a mismatch with the claimed filename extension. The check does not scan metadata or check for malware.
For local text files, File Encoding & Line-Ending Analyzer checks the BOM and documented byte-pattern heuristics for UTF-8, UTF-16 LE or BE, UTF-32, ASCII, and ambiguous legacy-looking data. The report includes line-ending style, byte, line, word, character, and longest-line counts, replacement-character counts, and a safe preview. The file is not converted or modified.
Checks before cleanup, migration, or editing
- Before cleanup, use Duplicate File Finder to separate exact duplicates from files that only share a name. The result includes the comparison and the space those duplicates could occupy.
- When a folder's contents need review, Folder Size Analyzer shows the largest files and folders, then breaks the contents down by extension or category.
- Before moving a folder between systems, use File Age & Path-Length Analyzer to inspect relative, basename, and full-path lengths alongside age information.
- Before opening a text file in an editor, use File Encoding & Line-Ending Analyzer to inspect encoding clues, line-ending style, replacement characters, and the safe preview.
Choosing a tool when the issue is unclear
Choose Folder Size Analyzer for storage use, Duplicate File Finder for exact duplicates, File Age & Path-Length Analyzer for age or path risk, File Type Detector for a file's actual format, and File Encoding & Line-Ending Analyzer for text structure. The broader File Management Tools category covers actions such as batch renaming or metadata removal.
Questions about file analysis
How do I find duplicate files without comparing names?
Use Duplicate File Finder. It compares selected files by size and SHA-256 content hash, groups exact duplicates, and reports the space those duplicates could occupy.
Which tool shows what is using space in a folder?
Use Folder Size Analyzer to inspect total size, file and folder counts, largest items, extension and category breakdowns, and a treemap or searchable tree or flat-list view.
How can I tell a file's real type when the extension is wrong?
Use File Type Detector. It reads the file signature, reports the detected format and MIME type with confidence, and flags a mismatch with the claimed filename extension.
Do these file analysis tools upload, delete, or modify files?
The child-page descriptions state that their inputs are not uploaded. They also state that Duplicate File Finder does not delete files, while the age, encoding, and folder checks do not modify the files they inspect. File Type Detector is a signature check with no metadata scan or malware check.