Crawler4j vs spider

Crawler4j

Open Source Web Crawler for Java (by yasserg)

Web Crawling

Source Code

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spider

The fastest web crawler written in Rust. Maintained by @a11ywatch. (by spider-rs)

Crawler Indexer Rust Spider Scraping headless-chrome

Source Code

spider.cloud

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Crawler4j		spider
	Project
2	Mentions	1
4,493	Stars	638
-	Growth	6.0%
0.0	Activity	9.5
over 2 years ago	Latest Commit	3 days ago
Java	Language	Rust
Apache License 2.0	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Crawler4j

Posts with mentions or reviews of Crawler4j. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-03-02.

Technical View: Crawler and NLP to do website text analytics
1 project | dev.to | 11 Aug 2022

To do web crawling you can choose a tool in Java or Python. In my case I'm using Crawler4J. (https://github.com/yasserg/crawler4j).
Any decent web crawler?
4 projects | /r/rust | 2 Mar 2021

and Java github.com/yasserg/crawler4j

spider

Posts with mentions or reviews of spider. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-03-02.