diff --git a/src/all/mangatensei/build.gradle b/src/all/mangatensei/build.gradle
new file mode 100644
index 000000000..e0a844efa
--- /dev/null
+++ b/src/all/mangatensei/build.gradle
@@ -0,0 +1,12 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    appName = 'Tachiyomi: Mangatensei'
+    pkgNameSuffix = 'all.mangatensei'
+    extClass = '.MangatenseiFactory'
+    extVersionCode = 1
+    libVersion = '1.2'
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/all/mangatensei/res/mipmap-hdpi/ic_launcher.png b/src/all/mangatensei/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
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diff --git a/src/all/mangatensei/res/mipmap-mdpi/ic_launcher.png b/src/all/mangatensei/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 000000000..d007343e3
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diff --git a/src/all/mangatensei/res/mipmap-xhdpi/ic_launcher.png b/src/all/mangatensei/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 000000000..87a1db09f
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diff --git a/src/all/mangatensei/res/mipmap-xxhdpi/ic_launcher.png b/src/all/mangatensei/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 000000000..604a02c35
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diff --git a/src/all/mangatensei/res/mipmap-xxxhdpi/ic_launcher.png b/src/all/mangatensei/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
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diff --git a/src/all/mangatensei/res/web_hi_res_512.png b/src/all/mangatensei/res/web_hi_res_512.png
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diff --git a/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/Mangatensei.kt b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/Mangatensei.kt
new file mode 100644
index 000000000..4bec0e8bd
--- /dev/null
+++ b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/Mangatensei.kt
@@ -0,0 +1,389 @@
+package eu.kanade.tachiyomi.extension.all.mangatensei
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.*
+import eu.kanade.tachiyomi.source.online.ParsedHttpSource
+import okhttp3.HttpUrl
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.json.JSONObject
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import java.util.*
+import java.util.concurrent.TimeUnit
+
+open class Mangatensei(override val lang: String, private val Mtlang: String) : ParsedHttpSource() {
+
+    override val name = "Mangatensei"
+
+    override val baseUrl = "https://www.mangatensei.com"
+
+    override val supportsLatest = true
+
+    override val client: OkHttpClient = network.cloudflareClient.newBuilder()
+        .connectTimeout(10, TimeUnit.SECONDS)
+        .readTimeout(30, TimeUnit.SECONDS)
+        .build()
+
+    override fun latestUpdatesRequest(page: Int):  Request {
+        // The site redirects page 1 -> url-without-page so we do this redirect early for optimization
+        val builtUrl = "$baseUrl/browse?langs=$Mtlang&sort=update&page=$page"
+        return GET(builtUrl)
+    }
+
+    override fun latestUpdatesSelector() = "div#series-list div.col-24"
+
+    override fun latestUpdatesFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        val item = element.select("a.item-cover")
+        val imgurl = "http:" + item.select("img").attr("src")
+        manga.setUrlWithoutDomain(item.attr("href"))
+        manga.title = element.select("a.item-title").text()
+        manga.thumbnail_url = imgurl
+        return manga
+    }
+
+    override fun latestUpdatesNextPageSelector() = "div.browse-pager:contains(order) a.page-link:contains(»)"
+
+    override fun popularMangaRequest(page: Int):  Request {
+        val builtUrl = "$baseUrl/browse?langs=$Mtlang&sort=views_w&page=$page"
+        return GET(builtUrl)
+    }
+
+    override fun popularMangaSelector() = latestUpdatesSelector()
+
+    override fun popularMangaFromElement(element: Element) = latestUpdatesFromElement(element)
+
+    override fun popularMangaNextPageSelector() = latestUpdatesNextPageSelector()
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        var author: String? = null
+        val url = HttpUrl.parse("$baseUrl/browse")!!.newBuilder()
+        url.addQueryParameter("page", page.toString())
+        url.addQueryParameter("langs", Mtlang)
+        filters.forEach { filter ->
+            when (filter) {
+                is AuthorFilter -> {
+                        author = filter.state
+                }
+                is StyleFilter -> {
+                    val styleToInclude = mutableListOf<String>()
+                    filter.state.forEach { content ->
+                        if (content.state) {
+                            styleToInclude.add(content.name)
+                        }
+                    }
+                    if (styleToInclude.isNotEmpty()) {
+                        url.addQueryParameter("styles", styleToInclude
+                            .joinToString(","))
+                    }
+                }
+                is DemographicFilter -> {
+                    val demographicToInclude = mutableListOf<String>()
+                    filter.state.forEach { content ->
+                        if (content.state) {
+                            demographicToInclude.add(content.name)
+                        }
+                    }
+                    if (demographicToInclude.isNotEmpty()) {
+                        url.addQueryParameter("demogs", demographicToInclude
+                            .joinToString(","))
+                    }
+                }
+                is StatusFilter -> {
+                    val status = when (filter.state) {
+                        Filter.TriState.STATE_INCLUDE -> "1"
+                        Filter.TriState.STATE_EXCLUDE -> "0"
+                        else -> ""
+                    }
+                    if(status.isNotEmpty()) {
+                        url.addQueryParameter("status", status)
+                    }
+                }
+                is GenreFilter -> {
+                    val genreToInclude = mutableListOf<String>()
+                    filter.state.forEach { content ->
+                        if (content.state) {
+                            genreToInclude.add(content.name)
+                        }
+                    }
+                    if (genreToInclude.isNotEmpty()) {
+                        url.addQueryParameter("genres", genreToInclude
+                            .joinToString(","))
+                    }
+                }
+                is StarFilter -> {
+                    if(filter.state != 0) {
+                        url.addQueryParameter("stars", filter.toUriPart())
+                    }
+                }
+                is ChapterFilter -> {
+                    if(filter.state != 0) {
+                        url.addQueryParameter("chapters", filter.toUriPart())
+                    }
+                }
+                is SortBy -> {
+                    if(filter.state != 0) {
+                        url.addQueryParameter("sort", filter.toUriPart())
+                    }
+                }
+            }
+        }
+        return if(query.isNotBlank() || author!!.isNotBlank()) {
+            GET("$baseUrl/search?q=$query&a=$author")
+        } else GET(url.build().toString(), headers)
+    }
+
+    override fun searchMangaSelector() = latestUpdatesSelector()
+
+    override fun searchMangaFromElement(element: Element) = latestUpdatesFromElement(element)
+
+    override fun searchMangaNextPageSelector() = latestUpdatesNextPageSelector()
+
+    override fun mangaDetailsRequest(manga: SManga): Request {
+        if (manga.url.startsWith("http")) {
+            return GET(manga.url, headers)
+        }
+        return super.mangaDetailsRequest(manga)
+    }
+
+    override fun mangaDetailsParse(document: Document): SManga {
+        val infoElement = document.select("div#series-page div.container")
+        val manga = SManga.create()
+        val genres = mutableListOf<String>()
+        val status = infoElement.select("div.attr-item:contains(status) span").text()
+        infoElement.select("div.attr-item:contains(genres) span").text().split(" / "
+            .toRegex()).forEach { element ->
+            genres.add(element)
+        }
+        manga.title = infoElement.select("h3").text()
+        manga.author = infoElement.select("div.attr-item:contains(author) a:first-child").text()
+        manga.artist = infoElement.select("div.attr-item:contains(author) a:last-child").text()
+        manga.status = parseStatus(status)
+        manga.genre = genres.joinToString(", ")
+        manga.description = infoElement.select("h5:contains(summary) + pre").text()
+        manga.thumbnail_url = "http:" + document.select("div.attr-cover img")
+            .attr("src")
+        return manga
+    }
+
+    private fun parseStatus(status: String?) = when {
+        status == null -> SManga.UNKNOWN
+        status.contains("Ongoing") -> SManga.ONGOING
+        status.contains("Completed") -> SManga.COMPLETED
+        else -> SManga.UNKNOWN
+    }
+
+    override fun chapterListRequest(manga: SManga): Request {
+        if (manga.url.startsWith("http")) {
+            return GET(manga.url, headers)
+        }
+        return super.chapterListRequest(manga)
+    }
+
+    override fun chapterListSelector() = "div.main div.p-2"
+
+    override fun chapterFromElement(element: Element): SChapter {
+        val chapter = SChapter.create()
+        val urlElement = element.select("a.chapt")
+        val time = element.select("i.pl-3").text()
+            .replace("a ", "1 ")
+            .replace("an ", "1 ")
+        chapter.setUrlWithoutDomain(urlElement.attr("href"))
+        chapter.name = urlElement.text()
+        if (time != "") {
+            chapter.date_upload = parseChapterDate(time)
+        }
+        return chapter
+    }
+
+    private fun parseChapterDate(date: String): Long {
+        val value = date.split(' ')[0].toInt()
+
+        return when {
+            "mins" in date -> Calendar.getInstance().apply {
+                add(Calendar.MINUTE, value * -1)
+            }.timeInMillis
+            "hours" in date -> Calendar.getInstance().apply {
+                add(Calendar.HOUR_OF_DAY, value * -1)
+            }.timeInMillis
+            "days" in date -> Calendar.getInstance().apply {
+                add(Calendar.DATE, value * -1)
+            }.timeInMillis
+            "weeks" in date -> Calendar.getInstance().apply {
+                add(Calendar.DATE, value * 7 * -1)
+            }.timeInMillis
+            "months" in date -> Calendar.getInstance().apply {
+                add(Calendar.MONTH, value * -1)
+            }.timeInMillis
+            "years" in date -> Calendar.getInstance().apply {
+                add(Calendar.YEAR, value * -1)
+            }.timeInMillis
+            "min" in date -> Calendar.getInstance().apply {
+                add(Calendar.MINUTE, value * -1)
+            }.timeInMillis
+            "hour" in date -> Calendar.getInstance().apply {
+                add(Calendar.HOUR_OF_DAY, value * -1)
+            }.timeInMillis
+            "day" in date -> Calendar.getInstance().apply {
+                add(Calendar.DATE, value * -1)
+            }.timeInMillis
+            "week" in date -> Calendar.getInstance().apply {
+                add(Calendar.DATE, value * 7 * -1)
+            }.timeInMillis
+            "month" in date -> Calendar.getInstance().apply {
+                add(Calendar.MONTH, value * -1)
+            }.timeInMillis
+            "year" in date -> Calendar.getInstance().apply {
+                add(Calendar.YEAR, value * -1)
+            }.timeInMillis
+            else -> {
+                return 0
+            }
+        }
+    }
+
+    override fun pageListRequest(chapter: SChapter): Request {
+        if (chapter.url.startsWith("http")) {
+            return GET(chapter.url, headers)
+        }
+        return super.pageListRequest(chapter)
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        val pages = mutableListOf<Page>()
+        val script = document.select("script").html()
+            .substringAfter("var images = ").substringBefore(";")
+        val imgList = JSONObject(script)
+
+        for( i in 1 until imgList.length() + 1) {
+            pages.add(Page(i - 1, "", imgList.getString("$i")))
+        }
+
+        return pages
+    }
+
+    override fun imageUrlParse(document: Document): String = throw  UnsupportedOperationException("Not used")
+
+    private class AuthorFilter : Filter.Text("Author / Artist")
+    private class StyleFilter(genres: List<Tag>) : Filter.Group<Tag>("Styles", genres)
+    private class DemographicFilter(genres: List<Tag>) : Filter.Group<Tag>("Demographic", genres)
+    private class GenreFilter(genres: List<Tag>) : Filter.Group<Tag>("Genres", genres)
+    private class StatusFilter : Filter.TriState("Completed")
+
+    private class StarFilter : UriPartFilter("Stars", arrayOf(
+            Pair("<select>", ""),
+            Pair("5 Stars", "5"),
+            Pair("4 Stars", "4"),
+            Pair("3 Stars", "3"),
+            Pair("2 Stars", "2"),
+            Pair("1 Stars", "1")
+    ))
+
+    private class ChapterFilter : UriPartFilter("Chapters", arrayOf(
+            Pair("<select>", ""),
+            Pair("1 ~ 9", "1-9"),
+            Pair("10 ~ 29", "10-29"),
+            Pair("30 ~ 99", "30-99"),
+            Pair("100 ~ 199", "100-199"),
+            Pair("200+", "200"),
+            Pair("100+", "100"),
+            Pair("50+", "50"),
+            Pair("10+", "10"),
+            Pair("1+", "1")
+    ))
+
+    private class SortBy : UriPartFilter("Sorts By", arrayOf(
+            Pair("<select>", ""),
+            Pair("Totally", "views_t"),
+            Pair("365 days", "views_y"),
+            Pair("30 days", "views_m"),
+            Pair("7 days", "views_w"),
+            Pair("24 hours", "views_d"),
+            Pair("60 minutes", "views_h"),
+            Pair("A-Z", "title"),
+            Pair("Update time", "update"),
+            Pair("Add time", "create")
+    ))
+
+    override fun getFilterList() = FilterList(
+            Filter.Header("NOTE: Ignored if using text search!"),
+            AuthorFilter(),
+            Filter.Separator(),
+            StatusFilter(),
+            StarFilter(),
+            ChapterFilter(),
+            SortBy(),
+            StyleFilter(getStyleList()),
+            DemographicFilter(getDemographicList()),
+            GenreFilter(getGenreList())
+    )
+
+    private fun getStyleList() = listOf(
+            Tag("manga"),
+            Tag("manhwa"),
+            Tag("manhua"),
+            Tag("webtoon")
+    )
+
+    private fun getDemographicList() = listOf(
+            Tag("josei"),
+            Tag("seinen"),
+            Tag("shoujo"),
+            Tag("shoujo ai"),
+            Tag("shounen"),
+            Tag("shounen ai"),
+            Tag("yaoi"),
+            Tag("yuri")
+    )
+
+    private fun getGenreList() = listOf(
+            Tag("action"),
+            Tag("adventure"),
+            Tag("award winning"),
+            Tag("comedy"),
+            Tag("cooking"),
+            Tag("demons"),
+            Tag("doujinshi"),
+            Tag("drama"),
+            Tag("ecchi"),
+            Tag("fantasy"),
+            Tag("gender bender"),
+            Tag("harem"),
+            Tag("historical"),
+            Tag("horror"),
+            Tag("isekai"),
+            Tag("magic"),
+            Tag("martial arts"),
+            Tag("mature"),
+            Tag("mecha"),
+            Tag("medical"),
+            Tag("military"),
+            Tag("music"),
+            Tag("mystery"),
+            Tag("one shot"),
+            Tag("psychological"),
+            Tag("reverse harem"),
+            Tag("romance"),
+            Tag("school life"),
+            Tag("sci fi"),
+            Tag("shotacon"),
+            Tag("slice of life"),
+            Tag("smut"),
+            Tag("sports"),
+            Tag("super power"),
+            Tag("supernatural"),
+            Tag("tragedy"),
+            Tag("uncategorized"),
+            Tag("vampire"),
+            Tag("youkai")
+    )
+
+    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 class Tag(name: String) : Filter.CheckBox(name)
+
+}
diff --git a/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiFactory.kt b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiFactory.kt
new file mode 100644
index 000000000..d599b5895
--- /dev/null
+++ b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiFactory.kt
@@ -0,0 +1,9 @@
+package eu.kanade.tachiyomi.extension.all.mangatensei
+
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.source.SourceFactory
+
+
+class MangatenseiFactory : SourceFactory {
+    override fun createSources(): List<Source> = getAllMangatenseiLanguages()
+}
\ No newline at end of file
diff --git a/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiLanguages.kt b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiLanguages.kt
new file mode 100644
index 000000000..b7e86db1f
--- /dev/null
+++ b/src/all/mangatensei/src/eu/kanade/tachiyomi/extension/all/mangatensei/MangatenseiLanguages.kt
@@ -0,0 +1,55 @@
+package eu.kanade.tachiyomi.extension.all.mangatensei
+
+/**
+ * Mangatensei languages
+ */
+
+class MangatenseiArabic : Mangatensei("ar", "arabic")
+class MangatenseiBrazilian : Mangatensei("pt-BR", "brazilian")
+class MangatenseiCzech : Mangatensei("cs", "czech")
+class MangatenseiDanish : Mangatensei("da", "danish")
+class MangatenseiDutch : Mangatensei("nl", "dutch")
+class MangatenseiEnglish : Mangatensei("en", "english")
+class MangatenseiFilipino : Mangatensei("fil", "filipino")
+class MangatenseiFrench : Mangatensei("fr", "french")
+class MangatenseiGerman : Mangatensei("de", "german")
+class MangatenseiGreek : Mangatensei("el", "greek")
+class MangatenseiHebrew : Mangatensei("iw", "hebrew")
+class MangatenseiHungarian : Mangatensei("hu", "hungarian")
+class MangatenseiIndonesian : Mangatensei("id", "indonesian")
+class MangatenseiItalian : Mangatensei("it", "italian")
+class MangatenseiMalay : Mangatensei("ms", "malay")
+class MangatenseiPolish : Mangatensei("pl", "polish")
+class MangatenseiPortuguese : Mangatensei("pt", "portuguese")
+class MangatenseiRomanian : Mangatensei("ro", "romanian")
+class MangatenseiRussian : Mangatensei("ru", "russian")
+class MangatenseiSpanish : Mangatensei("es", "spanish")
+class MangatenseiThai : Mangatensei("th", "thai")
+class MangatenseiTurkish : Mangatensei("tr", "turkish")
+class MangatenseiVietnamese : Mangatensei("vi", "vietnamese")
+
+fun getAllMangatenseiLanguages() = listOf(
+        MangatenseiArabic(),
+        MangatenseiBrazilian(),
+        MangatenseiCzech(),
+        MangatenseiDanish(),
+        MangatenseiDutch(),
+        MangatenseiEnglish(),
+        MangatenseiFilipino(),
+        MangatenseiFrench(),
+        MangatenseiGerman(),
+        MangatenseiGreek(),
+        MangatenseiHebrew(),
+        MangatenseiHungarian(),
+        MangatenseiIndonesian(),
+        MangatenseiItalian(),
+        MangatenseiMalay(),
+        MangatenseiPolish(),
+        MangatenseiPortuguese(),
+        MangatenseiRomanian(),
+        MangatenseiRussian(),
+        MangatenseiSpanish(),
+        MangatenseiThai(),
+        MangatenseiTurkish(),
+        MangatenseiVietnamese()
+)