ouch 0.8.1 Unified Archive Compression Tool for Windows
A dependency-free command-line tool for listing, compressing and extracting ZIP, 7z, tar, gzip, zstd, xz and other archives with one consistent workflow.
One workflow for many archives
ouch provides list, decompress and compress operations for common archive and compression formats, including ZIP, 7z, tar, gzip, zstd, xz and related combinations. It is distributed as a Windows x64 binary without an extra runtime, and supports tree views, batch extraction and shell completion.
The output extension selects the format
When creating an archive, place input files before the output file and use the complete output extension to express the intended format. A name such as tar.gz represents a layered archive and should be checked with list after creation. RAR support is limited by its licensing boundary to listing and extraction in this workflow.
Inspect before extracting
An unfamiliar archive may contain traversal paths, an unexpectedly large expansion, executables or scripts. List it first, extract into a new empty directory with limited permissions and available space, scan the result and compare file counts before moving anything into a working directory.
File scope
The indexed file is a 2.56 MB Windows x64 ZIP package for ouch 0.8.1. Content review date: 2026-08-23.
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ouch list, extract and create archive guide
Inspect an archive before extraction, use a separate empty directory for tests and place the output filename last when creating a new archive.
Before you start
- Prepare a trusted test archive and a few small files without sensitive data.
- Create separate input, output and extraction directories on Windows x64.
- Decide whether the target needs cross-platform compatibility, layered compression or RAR extraction.
Installation steps
- 01
Extract and verify the binary
Check the ouch 0.8.1 version, Windows x64 architecture and archive name, extract it to a fixed directory and inspect help output.
- 02
Review the three commands
Read the help for list, decompress and compress, including aliases, output directories and formats supported by this build.
- 03
Create an isolated work area
Copy the test archive into its own directory and create an empty extraction target so source content does not overwrite project files.
Quick start
- 01
List the archive
Use list to inspect paths, file count and tree structure; stop if you see absolute paths, parent-directory traversal or unexpected executables.
- 02
Extract to a new directory
Run decompress with an explicit empty target, scan the result and compare file counts and sizes before opening any program or script.
- 03
Create and verify an archive
Pass input files first and the output archive last, select ZIP or tar.gz through the extension and run list on the result.
Usage tips
- RAR entries are limited to listing and extraction in ouch; use a separately licensed tool when creation is required.
- A complete extension determines the compression chain, so naming order changes the archive layers.
- Use an empty directory, limited permissions and a space limit for untrusted archives to reduce overwrite and expansion risks.
Troubleshooting and uninstall
Why is a file without an extension hard to identify?
Check its source and file signature first. Do not rename it to a familiar extension simply to suppress an identification warning.
Why does the created archive use a different format?
Confirm that the output file is the final argument and that its full extension is ordered as intended, then recreate a test output and inspect it with list.
- Remove the binary and command referencesConfirm scripts, PATH entries and scheduled tasks no longer call ouch, archive verified results and then remove the program and extraction directories.
Frequently asked questions
Which archive formats does ouch support?
It covers common tar, ZIP, 7z, gzip, zstd, xz, lzma, bzip2, lz4 and Brotli workflows, including combinations such as tar.gz; RAR has a narrower workflow.
How does ouch choose a compression format?
The output file extension selects the format, and a compound extension can describe multiple layers. Verify the result with list after creation.
Should an unfamiliar archive be extracted immediately?
List it first, use a new empty directory with limited permissions, scan the result and inspect paths and file counts before moving content.
What format and version is the indexed file?
It is a 2.56 MB Windows x64 ZIP package for ouch 0.8.1; verify the filename after downloading.