Security tool · discovery
ffuf
Fast web fuzzer for directories, files, vhosts, and parameters. The de-facto content discovery tool.
Overview
Where ffuf fits
Fast web fuzzer for directories, files, vhosts, and parameters. The de-facto content discovery tool.
Detection-first use
Start with the least intrusive template that can distinguish your hypothesis from a normal response. Preserve raw output and a negative control.
Install
Installation references
Install with goAuthorization required
go install github.com/ffuf/ffuf/v2@latest- Positive signal
- Tool-specific output that supports the stated hypothesis.
- Negative control
- No result, or identical behavior against a known-safe control.
- Intrusiveness
- Review flags and target scope before execution.
Install with aptAuthorization required
sudo apt install -y ffuf- Positive signal
- Tool-specific output that supports the stated hypothesis.
- Negative control
- No result, or identical behavior against a known-safe control.
- Intrusiveness
- Review flags and target scope before execution.
Test safely
Command templates
Directory bruteAuthorization required
Populate placeholders only with assets that are explicitly in scope.
ffuf -u {url}/FUZZ -w {wordlist} -mc {codes} -o {output}- Positive signal
- Tool-specific output that supports the stated hypothesis.
- Negative control
- No result, or identical behavior against a known-safe control.
- Intrusiveness
- Review flags and target scope before execution.
VHost fuzzAuthorization required
Populate placeholders only with assets that are explicitly in scope.
ffuf -u {url} -H 'Host: FUZZ.{domain}' -w {wordlist} -fs {filtersize}- Positive signal
- Tool-specific output that supports the stated hypothesis.
- Negative control
- No result, or identical behavior against a known-safe control.
- Intrusiveness
- Review flags and target scope before execution.
Related
Continue the workflow
Sources
Attribution and verification
Version history: normalized permanent page created 2026-08-20. Upstream activity and popularity are separate signals and do not establish tool safety.