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Elegant Scraper and Crawler Framework for Golang
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.travis.yml [enh] update go versions for travis tests Nov 19, 2019 [enh] release v2.0.0 Nov 28, 2019 f Dec 10, 2019
LICENSE.txt [enh] add request & response callbacks ++ cookie handling ++ readme Sep 29, 2017 [doc] update documentation to v2 Jan 4, 2020
VERSION [fix] version bump to fix #417 Jan 3, 2020
colly.go Move isDomainAllowed and robots.txt checks inside requestCheck Dec 25, 2019
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xmlelement_test.go Update go.mod Dec 10, 2019


Lightning Fast and Elegant Scraping Framework for Gophers

Colly provides a clean interface to write any kind of crawler/scraper/spider.

With Colly you can easily extract structured data from websites, which can be used for a wide range of applications, like data mining, data processing or archiving.

GoDoc Backers on Open Collective Sponsors on Open Collective build status report card view examples Code Coverage FOSSA Status Twitter URL


  • Clean API
  • Fast (>1k request/sec on a single core)
  • Manages request delays and maximum concurrency per domain
  • Automatic cookie and session handling
  • Sync/async/parallel scraping
  • Caching
  • Automatic encoding of non-unicode responses
  • Robots.txt support
  • Distributed scraping
  • Configuration via environment variables
  • Extensions


func main() {
	c := colly.NewCollector()

	// Find and visit all links
	c.OnHTML("a[href]", func(e *colly.HTMLElement) {

	c.OnRequest(func(r *colly.Request) {
		fmt.Println("Visiting", r.URL)


See examples folder for more detailed examples.


go get -u


Bugs or suggestions? Visit the issue tracker or join #colly on freenode

Other Projects Using Colly

Below is a list of public, open source projects that use Colly:

If you are using Colly in a project please send a pull request to add it to the list.


This project exists thanks to all the people who contribute. [Contribute].


Thank you to all our backers! 🙏 [Become a backer]


Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]


FOSSA Status

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