diff --git a/src/en/doujins/AndroidManifest.xml b/src/en/doujins/AndroidManifest.xml
new file mode 100644
index 000000000..30deb7f79
--- /dev/null
+++ b/src/en/doujins/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="eu.kanade.tachiyomi.extension" />
diff --git a/src/en/doujins/build.gradle b/src/en/doujins/build.gradle
new file mode 100644
index 000000000..0647229d2
--- /dev/null
+++ b/src/en/doujins/build.gradle
@@ -0,0 +1,13 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    extName = 'Doujins'
+    pkgNameSuffix = 'en.doujins'
+    extClass = '.Doujins'
+    extVersionCode = 1
+    libVersion = '1.2'
+    containsNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/en/doujins/res/mipmap-hdpi/ic_launcher.png b/src/en/doujins/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/en/doujins/res/mipmap-xhdpi/ic_launcher.png b/src/en/doujins/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/en/doujins/res/mipmap-xxxhdpi/ic_launcher.png b/src/en/doujins/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/en/doujins/res/web_hi_res_512.png b/src/en/doujins/res/web_hi_res_512.png
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diff --git a/src/en/doujins/src/eu/kanade/tachiyomi/extension/en/doujins/Doujins.kt b/src/en/doujins/src/eu/kanade/tachiyomi/extension/en/doujins/Doujins.kt
new file mode 100644
index 000000000..b3e1a444e
--- /dev/null
+++ b/src/en/doujins/src/eu/kanade/tachiyomi/extension/en/doujins/Doujins.kt
@@ -0,0 +1,253 @@
+package eu.kanade.tachiyomi.extension.en.doujins
+
+import android.app.Application
+import android.content.SharedPreferences
+import com.github.salomonbrys.kotson.fromJson
+import com.github.salomonbrys.kotson.get
+import com.google.gson.Gson
+import com.google.gson.JsonObject
+import eu.kanade.tachiyomi.annotations.Nsfw
+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.MangasPage
+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.HttpSource
+import eu.kanade.tachiyomi.util.asJsoup
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Document
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.Date
+import java.util.Locale
+
+@Nsfw
+class Doujins : HttpSource() {
+
+    override val baseUrl: String = "https://doujins.com"
+
+    override val lang: String = "en"
+
+    override val name: String = "Doujins"
+
+    override val supportsLatest: Boolean = true
+
+    private val gson = Gson()
+
+    private val preferences: SharedPreferences by lazy {
+        Injekt.get<Application>().getSharedPreferences("source_$id", 0x0000)
+    }
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        return listOf(
+            SChapter.create().apply {
+                name = "Chapter"
+                setUrlWithoutDomain(response.request().url().toString())
+
+                val date = response.asJsoup().select(".folder-message").last().text().substringBefore(" • ")
+                for (dateFormat in MANGA_DETAILS_DATE_FORMAT) {
+                    if (date_upload == 0L)
+                        date_upload = dateFormat.parseOrNull(date)?.time ?: 0L
+                    else
+                        break
+                }
+            }
+        )
+    }
+
+    override fun imageUrlParse(response: Response): String = throw UnsupportedOperationException("Not used")
+
+    override fun latestUpdatesParse(response: Response): MangasPage {
+        return MangasPage(
+            gson.fromJson<JsonObject>(response.body()!!.string())["folders"].asJsonArray.map {
+                SManga.create().apply {
+                    setUrlWithoutDomain(it["link"].asString)
+                    title = it["name"].asString
+                    artist = it["artistList"].asString
+                    author = artist
+                    genre = it["tags"].asJsonArray.joinToString(", ") { it["tag"].asString }
+                    thumbnail_url = it["thumbnail2"].asString
+                }
+            },
+            true
+        )
+    }
+
+    private fun getLatestPageUrl(page: Int): String {
+        val endDate = Calendar.getInstance().apply {
+            add(Calendar.DATE, 1)
+            set(Calendar.HOUR_OF_DAY, 0)
+            set(Calendar.MINUTE, 0)
+            set(Calendar.SECOND, 0)
+            set(Calendar.MILLISECOND, 0)
+            add(Calendar.DATE, -1 * PAGE_DAYS * (page - 1))
+        }
+
+        val endDateSec = endDate.timeInMillis / 1000
+        val startDateSec = endDate.apply {
+            add(Calendar.DATE, -1 * PAGE_DAYS)
+        }.timeInMillis / 1000
+
+        return "$baseUrl/folders?start=$startDateSec&end=$endDateSec"
+    }
+
+    override fun latestUpdatesRequest(page: Int) = GET(getLatestPageUrl(page))
+
+    override fun mangaDetailsParse(response: Response): SManga {
+        val document = response.asJsoup()
+        return SManga.create().apply {
+            title = document.select(".folder-title a").last().text()
+            artist = document.select(".gallery-artist a").joinToString(", ") { it.text() }
+            author = artist
+        }
+    }
+
+    override fun pageListParse(response: Response): List<Page> {
+        val document = response.asJsoup()
+        val pageUrl = response.request().url().toString()
+        return document.select(".doujin").mapIndexed { i, page ->
+            Page(i, "$pageUrl${page.attr("data-link")}", page.attr("data-file").replace("amp;", ""))
+        }
+    }
+
+    override fun popularMangaParse(response: Response) = parseGalleryPage(response.asJsoup())
+
+    override fun popularMangaRequest(page: Int) = GET("$baseUrl/top/month")
+
+    override fun searchMangaParse(response: Response) = parseGalleryPage(response.asJsoup())
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val filterList = if (filters.isEmpty()) getFilterList() else filters
+        val seriesFilter = filterList.findInstance<SeriesFilter>()!!
+        val sortFilter = filterList.findInstance<SortFilter>()!!
+        val popularityPeriodFilter = filterList.findInstance<PopularityPeriodFilter>()!!
+
+        return when {
+            query != "" -> {
+                GET("$baseUrl/searches?words=$query&page=$page&sort=${sortFilter.toUriPart()}")
+            }
+            seriesFilter.toUriPart() != "" -> {
+                GET("$baseUrl${seriesFilter.toUriPart()}?sort=${sortFilter.toUriPart()}")
+            }
+            else -> {
+                GET("$baseUrl${popularityPeriodFilter.toUriPart()}")
+            }
+        }
+    }
+
+    private fun parseGalleryPage(document: Document): MangasPage {
+
+        val pagination = document.select(".pagination").first()
+        return MangasPage(
+            document.select("a.gallery-visited-from-favorites").map {
+                SManga.create().apply {
+                    setUrlWithoutDomain(it.attr("href"))
+                    title = it.select("div.title .text").text()
+                    artist = it.parent().nextElementSibling().select(".single-line strong")?.last()?.text()?.substringAfter("Artist: ")
+                    author = artist
+                    thumbnail_url = it.select("img").attr("srcset")
+                }
+            },
+            if (pagination != null) {
+                !pagination.select("li.page-item:last-child").hasClass("disabled")
+            } else {
+                false
+            }
+        )
+    }
+
+    override fun getFilterList(): FilterList = FilterList(
+        Filter.Header("Text search ignores series and period filters"),
+        Filter.Separator(),
+
+        Filter.Header("Series filter overrides period filter"),
+        SeriesFilter(),
+        Filter.Separator(),
+
+        Filter.Header("Period filter only applies at initial page"),
+        PopularityPeriodFilter(),
+        Filter.Separator(),
+
+        Filter.Header("Sort only works with text search and series filter"),
+        SortFilter()
+    )
+
+    private class SeriesFilter : UriPartFilter(
+        "Series",
+        arrayOf(
+            Pair("None", ""),
+            Pair("Doujins - Original Series", "/doujins-original-series-19934"),
+            Pair("Hentai Magazine Chapters", "/hentai-magazine-chapters-2766"),
+            Pair("Hentai Manga", "/hentai-manga-19"),
+            Pair("Fate Grand Order", "/fate-grand-order-doujins-28615"),
+            Pair("CG Sets - Original Series", "/cg-sets-original-series-14865"),
+            Pair("Touhou", "/touhou-doujins-7748"),
+            Pair("Naruto", "/naruto-doujins-5761"),
+            Pair("Kantai Collection", "/kantai-collection-doujins-22720"),
+            Pair("Hentai Game CG-Sets", "/hentai-game-cg-sets-2422"),
+            Pair("One Piece", "/one-piece-doujins-6080"),
+            Pair("Granblue Fantasy", "/granblue-fantasy-doujins-28177"),
+            Pair("Azur Lane", "/azur-lane-doujins-34298"),
+            Pair("Sword Art Online", "/sword-art-online-doujins-7246"),
+            Pair("Idolmaster", "/idolmaster-4281"),
+            Pair("My Hero Academia", "/my-hero-academia-doujins-28744"),
+            Pair("Love Live", "/love-live-doujins-21865"),
+            Pair("Pokemon", "/pokemon-doujins-6393"),
+            Pair("Dragon Ball", "/dragon-ball-doujins-1238"),
+            Pair("CGs - Mixed Series", "/cgs-mixed-series-35311"),
+            Pair("Doujins - Mixed Series", "/doujins-mixed-series-20091"),
+            Pair("Hentai Magazine Chapters", "/hentai-magazine-chapters-2766"),
+            Pair("Hentai Magazine Chapters - Super-Shorts", "/hentai-magazine-chapters-super-shorts-19933"),
+            Pair("Hentai Manga", "/hentai-manga-19")
+        )
+    )
+
+    private class SortFilter : UriPartFilter(
+        "Sort",
+        arrayOf(
+            Pair("Newest First", ""),
+            Pair("Oldest First", "created_at"),
+            Pair("Alphabetical", "name"),
+            Pair("Rating", "-cached_score"),
+            Pair("Popularity", "-cached_views")
+        )
+    )
+
+    private class PopularityPeriodFilter : UriPartFilter(
+        "Period",
+        arrayOf(
+            Pair("This Month", "/top"),
+            Pair("This Year", "/top/year"),
+            Pair("All Time", "/top/all"),
+        )
+    )
+
+    private open class UriPartFilter(displayName: String, val vals: Array<Pair<String, String>>) :
+        Filter.Select<String>(displayName, vals.map { it.first }.toTypedArray()) {
+        fun toUriPart() = vals[state].second
+    }
+
+    private fun SimpleDateFormat.parseOrNull(string: String): Date? {
+        return try {
+            parse(string)
+        } catch (e: ParseException) {
+            null
+        }
+    }
+
+    private inline fun <reified T> Iterable<*>.findInstance() = find { it is T } as? T
+
+    companion object {
+        private const val PAGE_DAYS = 3
+        private val ORDINAL_SUFFIXES = listOf("th", "st", "nd", "rd")
+        private val MANGA_DETAILS_DATE_FORMAT = ORDINAL_SUFFIXES.map {
+            SimpleDateFormat("MMMM dd'$it', yyyy", Locale.US)
+        }
+    }
+}