Search large sets of text with sift, a fast command-line alternative to grep that provides regular expression matching.

sift-tool.org
Sift homepage screenshot

About Sift

Sift is a command-line search tool for large sets of text. It is presented as a faster and more flexible alternative to grep, the standard Unix search utility. The stated aim is to match grep's performance while adding features. Additional features include gitignore support, conditional matching (for example, matching A only when preceded by B within a set number of lines), multi-core support, and multiline matching.

Behavior can be customized through global or local configuration files, so defaults can apply system-wide or to a specific project path. The homepage describes its design goals as searching everywhere unless the user excludes paths, avoiding unrequested file writes, and not running other programs. The homepage gives performance as a goal, and the excerpt includes no benchmark figures.

Key features

  • Regular expression matching for searching large sets of text
  • gitignore support
  • Conditional matching, such as matching A only when preceded by B within X lines
  • Multi-core support
  • Multiline matching
  • Global and local configuration files for default behavior
Best for: Developers and system administrators who search large volumes of text from the command line and want grep-like speed with gitignore, multiline, or conditional matching.
Good for
  • Aims to combine grep-level speed with additional search flexibility
  • Settings can be stored in global or per-project configuration files
  • Stated design principles include showing errors and warnings rather than hiding them
Watch out for
  • Performance is described as a goal; the homepage excerpt gives no benchmark figures

Sift at a glance

Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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Sift FAQ

Does sift support .gitignore files?
Yes. Sift can understand .gitignore files, and the --git option can be set as a default in the configuration file.
Can sift match patterns across multiple lines?
Yes. The homepage lists multiline matching as one of its additional features.
Does sift change files on my system?
According to the stated design principles, sift only writes to files when the user requests it and does not execute other programs on the system.
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