# projectdiscovery/katana

A next-generation crawling and spidering framework.

Repository: https://github.com/projectdiscovery/katana
Canonical: https://ross.abutalabs.com/products/projectdiscovery-katana
Language: Go
License: MIT
License Family: permissive
Topics: crawler, web-spider, gocrawler, spider-framework, cli, headless, hacktoberfest
Last push: 2026-08-24T12:23:53+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 84, longevity 100
- inputs: {"age_days": 2069, "days_push": 9, "days_rel": 28, "gap_med": 54, "n_releases_24m": 12}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 17348, forks 1168 (observed 2026-08-28T04:11:17.982860+00:00)

## What it is
Katana is a fast, configurable web crawling and spidering framework written in Go, supporting both standard HTTP-based and headless browser modes. It parses JavaScript, auto-fills forms, and offers scope control and customizable JSON/file output, making it popular for security reconnaissance.

## Use cases
- crawl all endpoints of a website for bug bounty recon
- spider a site headlessly to discover JavaScript-loaded URLs
- enumerate links and forms on a target domain
- discover hidden paths and endpoints on a web app
- feed discovered URLs into vulnerability scanners
- automatically fill and submit forms while crawling

## When to choose
- you need fast, scriptable web crawling from the CLI
- you want headless browser crawling with JS rendering
- you're doing security reconnaissance or attack surface mapping
- you need JSON output to pipe into other tools

## When to avoid
- you need a polite, SEO-oriented production crawler with robots.txt compliance by default
- you want a GUI-based crawling tool
- you need distributed large-scale crawling infrastructure

## Facets
- artifact type: cli-tool
- maturity: active
- function: web-scraping, cli, parser
- domain: security, crawlers, web-development, developer-tools
- platform: windows, cli, go
- tags: web-crawler, spidering, headless-browser, javascript-parsing, reconnaissance, bug-bounty, attack-surface-discovery, form-filling, command-line, linux, macos, docker

## Member repositories
- projectdiscovery/katana (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:17.982860+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:03:11.032840+00:00, confidence not recorded.
  - readme: https://github.com/projectdiscovery/katana (fetched 2026-08-28T04:11:17.982860+00:00, sha c5f47d025d43)
- Data as of 2026-08-30T08:39:29.467469+00:00.