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com.fleeksoft.ksoup:ksoup
Advanced tools
com.fleeksoft.ksoup:ksoup
Ksoup is a Kotlin Multiplatform library for working with HTML and XML, and offers an easy-to-use API for URL fetching, data parsing, extraction, and manipulation using DOM and CSS selectors.
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Ksoup: Kotlin Multiplatform HTML & XML Parser
Ksoup is a Kotlin Multiplatform library for working with real-world HTML and XML. It's a port of the renowned Java library, jsoup, and offers an easy-to-use API for URL fetching, data parsing, extraction, and manipulation using DOM and CSS selectors.
🚨 Deprecation Notice
The following extension libraries are deprecated and will be removed in a future release:
ksoup-korlibs(I/O extension)ksoup-network-korlibs(Network extension)ksoup-network-ktor2(Network extension)Recommendation:
- For I/O capabilities: Use
ksoup-kotlinxextension- For network capabilities: Use
ksoup-networkextension (based on Ktor 3)
Ksoup implements the WHATWG HTML5 specification, parsing HTML to the same DOM as modern browsers do, but with support for Android, JVM, and native platforms.
Features
- Scrape and parse HTML from a URL, file, or string
- Find and extract data using DOM traversal or CSS selectors
- Manipulate HTML elements, attributes, and text
- Clean user-submitted content against a safe-list to prevent XSS attacks
- Output tidy HTML
Ksoup is adept at handling all varieties of HTML found in the wild.
Getting started
Library Structure
Ksoup follows a modular architecture:
- Core Library (
com.fleeksoft.ksoup:ksoup): The main library that provides HTML/XML parsing from strings - Optional I/O Extensions: Add capabilities for parsing from files and other sources
- Optional Network Extensions: Add capabilities for fetching and parsing from URLs
Installation
Include the dependencies in your commonMain. Latest version
1. Core Library
Start with the core library. This is all you need if you're only parsing HTML/XML from strings.
// Required core library
implementation("com.fleeksoft.ksoup:ksoup:<version>")
2. I/O Extensions (Optional)
Add one of these extensions only if you need to parse HTML/XML from files or other sources.
Choose one of the following I/O libraries:
-
kotlinx-io (Recommended)
// Optional: Add this if you need file parsing capabilities // Provides Ksoup.parseFile, Ksoup.parseSource & Other InputStream APIs implementation("com.fleeksoft.ksoup:ksoup-kotlinx:<version>") -
// Optional: Add this if you need file parsing capabilities // Provides Ksoup.parseFile, Ksoup.parseSource & Other InputStream APIs implementation("com.fleeksoft.ksoup:ksoup-okio:<version>") -
korlibs-io(DEPRECATED: Use kotlinx-io instead)// Deprecated: Not recommended for new projects // Provides Ksoup.parseFile, Ksoup.parseStream & Other InputStream APIs implementation("com.fleeksoft.ksoup:ksoup-korlibs:<version>")
3. Network Extensions (Optional)
Add one of these extensions only if you need to fetch and parse HTML/XML directly from URLs.
Choose one of the following network libraries:
-
Ktor 3 (Recommended)
// Optional: Add this if you need to fetch HTML/XML from URLs // Provides Ksoup.parseGetRequest, Ksoup.parseSubmitRequest, Ksoup.parsePostRequest implementation("com.fleeksoft.ksoup:ksoup-network:<version>") -
Ktor 2(DEPRECATED: Use Ktor 3 instead)// Deprecated: Not recommended for new projects // Provides Ksoup.parseGetRequest, Ksoup.parseSubmitRequest, Ksoup.parsePostRequest implementation("com.fleeksoft.ksoup:ksoup-network-ktor2:<version>") -
korlibs-io Network(DEPRECATED: Use Ktor 3 instead)// Deprecated: Not recommended for new projects // Provides Ksoup.parseGetRequest, Ksoup.parseSubmitRequest, Ksoup.parsePostRequest implementation("com.fleeksoft.ksoup:ksoup-network-korlibs:<version>")
Ksoup supports Charsets
- Standard charsets are already supported by Ksoup IO, but for extended charsets, please add
com.fleeksoft.charset:charset-ext, For more details, visit the Charsets Documentation
Parsing HTML from a String with Ksoup
For API documentation you can check Jsoup. Most of the APIs work without any changes.
val html = "<html><head><title>One</title></head><body>Two</body></html>"
val doc: Document = Ksoup.parse(html = html)
println("title => ${doc.title()}") // One
println("bodyText => ${doc.body().text()}") // Two
This snippet demonstrates how to use Ksoup.parse for parsing an HTML string and extracting the title and body text.
Fetching and Parsing HTML from a URL using Ksoup
//Please note that the com.fleeksoft.ksoup:ksoup-network library is required for Ksoup.parseGetRequest.
val doc: Document = Ksoup.parseGetRequest(url = "https://en.wikipedia.org/") // suspend function
// or
val doc: Document = Ksoup.parseGetRequestBlocking(url = "https://en.wikipedia.org/")
println("title: ${doc.title()}")
val headlines: Elements = doc.select("#mp-itn b a")
headlines.forEach { headline: Element ->
val headlineTitle = headline.attr("title")
val headlineLink = headline.absUrl("href")
println("$headlineTitle => $headlineLink")
}
Parsing XML
val doc: Document = Ksoup.parse(xml, parser = Parser = Parser.xmlParser())
Parsing Metadata from Website
//Please note that the com.fleeksoft.ksoup:ksoup-network library is required for Ksoup.parseGetRequest.
val doc: Document = Ksoup.parseGetRequest(url = "https://en.wikipedia.org/") // suspend function
val metadata: Metadata = Ksoup.parseMetaData(element = doc) // suspend function
// or
val metadata: Metadata = Ksoup.parseMetaData(html = HTML)
println("title: ${metadata.title}")
println("description: ${metadata.description}")
println("ogTitle: ${metadata.ogTitle}")
println("ogDescription: ${metadata.ogDescription}")
println("twitterTitle: ${metadata.twitterTitle}")
println("twitterDescription: ${metadata.twitterDescription}")
// Check com.fleeksoft.ksoup.model.MetaData for more fields
In this example, Ksoup.parseGetRequest fetches and parses HTML content from Wikipedia, extracting and printing news headlines and their corresponding links.
Ksoup Public functions
- Ksoup.parse(html: String, baseUri: String = ""): Document
- Ksoup.parse(html: String, parser: Parser, baseUri: String = ""): Document
- Ksoup.parse(reader: Reader, parser: Parser, baseUri: String = ""): Document
- Ksoup.clean( bodyHtml: String, safelist: Safelist = Safelist.relaxed(), baseUri: String = "", outputSettings: Document.OutputSettings? = null): String
- Ksoup.isValid(bodyHtml: String, safelist: Safelist = Safelist.relaxed()): Boolean
Ksoup I/O Public functions
- Ksoup.parseInput(input: InputStream, baseUri: String, charsetName: String? = null, parser: Parser = Parser.htmlParser()) from (ksoup-io, ksoup-okio, ksoup-kotlinx, ksoup-korlibs)
- Ksoup.parseFile from (ksoup-okio, ksoup-kotlinx, ksoup-korlibs)
- Ksoup.parseSource from (ksoup-okio, ksoup-kotlinx)
- Ksoup.parseStream from (ksoup-korlibs)
Ksoup Network Public functions
- Suspend functions
- Ksoup.parseGetRequest
- Ksoup.parseSubmitRequest
- Ksoup.parsePostRequest
- Blocking functions
- Ksoup.parseGetRequestBlocking
- Ksoup.parseSubmitRequestBlocking
- Ksoup.parsePostRequestBlocking
For further documentation, please check here: Jsoup
Ksoup vs. Jsoup Benchmarks: Parsing & Selecting 448KB HTML File test.tx
Open source
Ksoup is an open source project, a Kotlin Multiplatform port of jsoup, distributed under the MIT License, Version 2.0. The source code of Ksoup is available on GitHub.
Development and Support
For questions about usage and general inquiries, please refer to GitHub Discussions.
If you wish to contribute, please read the Contributing Guidelines.
To report any issues, visit our GitHub issues, Please ensure to check for duplicates before submitting a new issue.
License
Ksoup is open source software licensed under the MIT License.
This project is a Kotlin Multiplatform port of Jsoup, created by Jonathan Hedley.
Portions of this library are derived from jsoup and retain their original MIT License,
© 2009–2025 Jonathan Hedley.
FAQs
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We found that com.fleeksoft.ksoup:ksoup demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
Package last updated on 02 Aug 2025
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