diff --git a/src/ko/toon11/build.gradle b/src/ko/toon11/build.gradle
new file mode 100644
index 000000000..48b3f9a3e
--- /dev/null
+++ b/src/ko/toon11/build.gradle
@@ -0,0 +1,8 @@
+ext {
+    extName = '11toon'
+    extClass = '.Toon11'
+    extVersionCode = 1
+    isNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/ko/toon11/res/mipmap-hdpi/ic_launcher.png b/src/ko/toon11/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/ko/toon11/res/mipmap-mdpi/ic_launcher.png b/src/ko/toon11/res/mipmap-mdpi/ic_launcher.png
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diff --git a/src/ko/toon11/res/mipmap-xhdpi/ic_launcher.png b/src/ko/toon11/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/ko/toon11/res/mipmap-xxhdpi/ic_launcher.png b/src/ko/toon11/res/mipmap-xxhdpi/ic_launcher.png
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diff --git a/src/ko/toon11/res/mipmap-xxxhdpi/ic_launcher.png b/src/ko/toon11/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/ko/toon11/src/eu/kanade/tachiyomi/extension/ko/toon11/Toon11.kt b/src/ko/toon11/src/eu/kanade/tachiyomi/extension/ko/toon11/Toon11.kt
new file mode 100644
index 000000000..ff86dbed3
--- /dev/null
+++ b/src/ko/toon11/src/eu/kanade/tachiyomi/extension/ko/toon11/Toon11.kt
@@ -0,0 +1,265 @@
+package eu.kanade.tachiyomi.extension.ko.toon11
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.Filter
+import eu.kanade.tachiyomi.source.model.FilterList
+import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.source.online.ParsedHttpSource
+import eu.kanade.tachiyomi.util.asJsoup
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.ArrayList
+import java.util.Date
+import java.util.Locale
+
+class Toon11 : ParsedHttpSource() {
+
+    override val name = "11toon"
+
+    override val baseUrl = "https://www.11toon.com"
+
+    override val lang = "ko"
+
+    override val supportsLatest = true
+
+    override val client: OkHttpClient = network.cloudflareClient
+
+    override fun popularMangaSelector() = "li[data-id]"
+
+    override fun latestUpdatesSelector() = popularMangaSelector()
+
+    override fun popularMangaRequest(page: Int) = GET("$baseUrl/bbs/board.php?bo_table=toon_c&is_over=0", headers)
+
+    override fun latestUpdatesRequest(page: Int) = GET("$baseUrl/bbs/board.php?bo_table=toon_c&sord=&type=upd&page=$page", headers)
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        return if (query.isNotBlank()) {
+            val url = "$baseUrl/bbs/search_stx.php".toHttpUrl().newBuilder().apply {
+                addQueryParameter("stx", query)
+            }.build()
+            GET(url, headers)
+        } else {
+            var urlString = ""
+            var isOver = ""
+            var genre = ""
+
+            filters.forEach { filter ->
+                when (filter) {
+                    is SortFilter -> urlString = filter.selected
+                    is StatusFilter -> isOver = filter.selected
+                    is GenreFilter -> genre = filter.selected
+                    else -> {}
+                }
+            }
+
+            val url = urlString.toHttpUrl().newBuilder().apply {
+                addQueryParameter("is_over", isOver)
+                if (page > 1) addQueryParameter("page", page.toString())
+                if (genre.isNotEmpty()) addQueryParameter("sca", genre)
+            }.build()
+
+            GET(url, headers)
+        }
+    }
+
+    override fun popularMangaFromElement(element: Element) = SManga.create().apply {
+        setUrlWithoutDomain(element.selectFirst("a")!!.absUrl("href"))
+        title = element.selectFirst(".homelist-title")!!.text()
+        thumbnail_url = element.selectFirst(".homelist-thumb")?.absUrl("data-mobile-image")
+    }
+
+    override fun latestUpdatesFromElement(element: Element) = SManga.create().apply {
+        setUrlWithoutDomain(element.selectFirst("a")!!.absUrl("href"))
+        title = element.selectFirst(".homelist-title")!!.text()
+        element.selectFirst(".homelist-thumb")?.also {
+            thumbnail_url = "https:" + it.attr("style").substringAfter("url('").substringBefore("')")
+        }
+    }
+
+    override fun popularMangaNextPageSelector() = ".pg_end"
+
+    override fun latestUpdatesNextPageSelector() = popularMangaNextPageSelector()
+
+    override fun searchMangaSelector() = popularMangaSelector()
+
+    override fun searchMangaFromElement(element: Element) = SManga.create().apply {
+        title = element.selectFirst(".homelist-title")!!.text()
+        val dataId = element.attr("data-id")
+        setUrlWithoutDomain("$baseUrl/bbs/board.php?bo_table=toons&stx=$title&is=$dataId")
+        element.selectFirst(".homelist-thumb")?.also {
+            thumbnail_url = "https:" + it.attr("style").substringAfter("url('").substringBefore("')")
+        }
+    }
+
+    override fun searchMangaNextPageSelector() = popularMangaNextPageSelector()
+
+    override fun mangaDetailsParse(document: Document): SManga {
+        return SManga.create().apply {
+            title = document.selectFirst("h2.title")!!.text()
+            thumbnail_url = document.selectFirst("img.banner")?.absUrl("src")
+            document.selectFirst("span:contains(분류) + span")?.also { status = parseStatus(it.text()) }
+            document.selectFirst("span:contains(작가) + span")?.also { author = it.text() }
+            document.selectFirst("span:contains(소개) + span")?.also { description = it.text() }
+            document.selectFirst("span:contains(장르) + span")?.also { genre = it.text().split(",").joinToString() }
+        }
+    }
+
+    private fun parseStatus(element: String): Int = when {
+        "완결" in element -> SManga.COMPLETED
+        "주간" in element || "월간" in element || "연재" in element || "격주" in element -> SManga.ONGOING
+        else -> SManga.UNKNOWN
+    }
+
+    private tailrec fun parseChapters(nextURL: String, chapters: ArrayList<SChapter>) {
+        val newpage = fetchPagesFromNav(nextURL)
+        newpage.select(chapterListSelector()).forEach {
+            chapters.add(chapterFromElement(it))
+        }
+        val newURL = newpage.selectFirst(".pg_current ~ .pg_page")?.absUrl("href")
+        if (!newURL.isNullOrBlank()) parseChapters(newURL, chapters)
+    }
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        val document = response.asJsoup()
+        val nav = document.selectFirst("span.pg")
+        val chapters = ArrayList<SChapter>()
+
+        document.select(chapterListSelector()).forEach {
+            chapters.add(chapterFromElement(it))
+        }
+
+        if (nav == null) {
+            return chapters
+        }
+
+        val pg2url = nav.selectFirst(".pg_current ~ .pg_page")!!.absUrl("href")
+
+        // recursively build the chapter list
+
+        parseChapters(pg2url, chapters)
+
+        return chapters
+    }
+
+    private fun fetchPagesFromNav(url: String) = client.newCall(GET(url, headers)).execute().asJsoup()
+
+    override fun chapterListSelector() = "#comic-episode-list > li"
+
+    override fun chapterFromElement(element: Element): SChapter {
+        val urlEl = element.selectFirst("button")
+        val dateEl = element.selectFirst(".free-date")
+
+        return SChapter.create().apply {
+            urlEl!!.also {
+                setUrlWithoutDomain(it.attr("onclick").substringAfter("location.href='.").substringBefore("'"))
+                name = it.selectFirst(".episode-title")!!.text()
+            }
+            dateEl?.also { date_upload = dateParse(it.text()) }
+        }
+    }
+
+    private val dateFormat = SimpleDateFormat("yy.MM.dd", Locale.ENGLISH)
+
+    private fun dateParse(dateAsString: String): Long {
+        val date: Date? = try {
+            dateFormat.parse(dateAsString)
+        } catch (e: ParseException) {
+            null
+        }
+        return date?.time ?: 0L
+    }
+
+    override fun pageListRequest(chapter: SChapter): Request {
+        return GET(baseUrl + "/bbs" + chapter.url, headers)
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        val rawImageLinks = document.selectFirst("script + script[type^=text/javascript]:not([src])")!!.data()
+        val imgList = extractList(rawImageLinks)
+
+        return imgList.mapIndexed { i, img ->
+            Page(i, imageUrl = "https:$img")
+        }
+    }
+
+    private val imgListRegex = """img_list\s*=\s*(\[.*?])""".toRegex(RegexOption.DOT_MATCHES_ALL)
+
+    private fun extractList(jsString: String): List<String> {
+        val matchResult = imgListRegex.find(jsString)
+        val listString = matchResult?.groupValues?.get(1) ?: return emptyList()
+        return Json.decodeFromString<List<String>>(listString)
+    }
+
+    override fun imageUrlParse(document: Document) = throw UnsupportedOperationException()
+
+    // Filters
+
+    override fun getFilterList() = FilterList(
+        Filter.Header("Note: can't combine search query with filters, status filter only has effect in 인기만화"),
+        Filter.Separator(),
+        SortFilter(getSortList, 0),
+        StatusFilter(getStatusList, 0),
+        GenreFilter(getGenreList, 0),
+    )
+
+    class SelectFilterOption(val name: String, val value: String)
+
+    abstract class SelectFilter(name: String, private val options: List<SelectFilterOption>, default: Int = 0) : Filter.Select<String>(name, options.map { it.name }.toTypedArray(), default) {
+        val selected: String
+            get() = options[state].value
+    }
+
+    class SortFilter(options: List<SelectFilterOption>, default: Int) : SelectFilter("Sort", options, default)
+    class StatusFilter(options: List<SelectFilterOption>, default: Int) : SelectFilter("Status", options, default)
+    class GenreFilter(options: List<SelectFilterOption>, default: Int) : SelectFilter("Genre", options, default)
+
+    private val getSortList = listOf(
+        SelectFilterOption("인기만화", "$baseUrl/bbs/board.php?bo_table=toon_c"),
+        SelectFilterOption("최신만화", "$baseUrl/bbs/board.php?bo_table=toon_c&tablename=최신만화&type=upd"),
+    )
+
+    private val getStatusList = listOf(
+        SelectFilterOption("전체", "0"),
+        SelectFilterOption("완결", "1"),
+    )
+
+    private val getGenreList = listOf(
+        SelectFilterOption("전체", ""),
+        SelectFilterOption("SF", "SF"),
+        SelectFilterOption("무협", "무협"),
+        SelectFilterOption("TS", "TS"),
+        SelectFilterOption("개그", "개그"),
+        SelectFilterOption("드라마", "드라마"),
+        SelectFilterOption("러브코미디", "러브코미디"),
+        SelectFilterOption("먹방", "먹방"),
+        SelectFilterOption("백합", "백합"),
+        SelectFilterOption("붕탁", "붕탁"),
+        SelectFilterOption("스릴러", "스릴러"),
+        SelectFilterOption("스포츠", "스포츠"),
+        SelectFilterOption("시대", "시대"),
+        SelectFilterOption("액션", "액션"),
+        SelectFilterOption("순정", "순정"),
+        SelectFilterOption("일상+치유", "일상%2B치유"),
+        SelectFilterOption("추리", "추리"),
+        SelectFilterOption("판타지", "판타지"),
+        SelectFilterOption("학원", "학원"),
+        SelectFilterOption("호러", "호러"),
+        SelectFilterOption("BL", "BL"),
+        SelectFilterOption("17", "17"),
+        SelectFilterOption("이세계", "이세계"),
+        SelectFilterOption("전생", "전생"),
+        SelectFilterOption("라노벨", "라노벨"),
+        SelectFilterOption("애니화", "애니화"),
+        SelectFilterOption("TL", "TL"),
+    )
+}