diff --git a/src/ja/rawdevartart/build.gradle b/src/ja/rawdevartart/build.gradle
new file mode 100644
index 000000000..90dd6a353
--- /dev/null
+++ b/src/ja/rawdevartart/build.gradle
@@ -0,0 +1,8 @@
+ext {
+    extName = "Rawdevart.art"
+    extClass = ".Rawdevartart"
+    extVersionCode = 1
+    isNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/ja/rawdevartart/res/mipmap-hdpi/ic_launcher.png b/src/ja/rawdevartart/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 000000000..96349c2d3
Binary files /dev/null and b/src/ja/rawdevartart/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/src/ja/rawdevartart/res/mipmap-mdpi/ic_launcher.png b/src/ja/rawdevartart/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 000000000..753515c7e
Binary files /dev/null and b/src/ja/rawdevartart/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/src/ja/rawdevartart/res/mipmap-xhdpi/ic_launcher.png b/src/ja/rawdevartart/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 000000000..6d28247e4
Binary files /dev/null and b/src/ja/rawdevartart/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/src/ja/rawdevartart/res/mipmap-xxhdpi/ic_launcher.png b/src/ja/rawdevartart/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 000000000..e16ffeb04
Binary files /dev/null and b/src/ja/rawdevartart/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/src/ja/rawdevartart/res/mipmap-xxxhdpi/ic_launcher.png b/src/ja/rawdevartart/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 000000000..5821c963f
Binary files /dev/null and b/src/ja/rawdevartart/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/Rawdevartart.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/Rawdevartart.kt
new file mode 100644
index 000000000..fec3fb0bf
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/Rawdevartart.kt
@@ -0,0 +1,115 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart
+
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.ChapterDetailsDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.MangaDetailsDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.PaginatedMangaList
+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 kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.Request
+import okhttp3.Response
+import uy.kohesive.injekt.injectLazy
+
+class Rawdevartart : HttpSource() {
+
+    override val name = "Rawdevart.art"
+
+    override val lang = "ja"
+
+    override val baseUrl = "https://rawdevart.art"
+
+    override val supportsLatest = true
+
+    override fun headersBuilder() = super.headersBuilder()
+        .add("Referer", "$baseUrl/")
+
+    private val json: Json by injectLazy()
+
+    override fun popularMangaRequest(page: Int) = searchMangaRequest(
+        page,
+        "",
+        FilterList(
+            SortFilter(1),
+            GenreFilter(genres),
+        ),
+    )
+
+    override fun popularMangaParse(response: Response) = searchMangaParse(response)
+
+    override fun latestUpdatesRequest(page: Int) = searchMangaRequest(
+        page,
+        "",
+        FilterList(
+            SortFilter(0),
+            GenreFilter(genres),
+        ),
+    )
+
+    override fun latestUpdatesParse(response: Response) = searchMangaParse(response)
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val url = "$baseUrl/spa".toHttpUrl().newBuilder().apply {
+            if (query.isNotEmpty()) {
+                addPathSegment("search")
+                addQueryParameter("query", query)
+                addQueryParameter("page", page.toString())
+
+                return@apply
+            }
+
+            (if (filters.isEmpty()) getFilterList() else filters).forEach { f ->
+                when (f) {
+                    is UriFilter -> f.addToUri(this)
+                    is GenreFilter -> addPathSegments(f.values[f.state].path)
+                    else -> {}
+                }
+            }
+        }.build()
+
+        return GET(url, headers)
+    }
+
+    override fun searchMangaParse(response: Response): MangasPage {
+        val data = response.parseAs<PaginatedMangaList>()
+
+        return data.toMangasPage()
+    }
+
+    override fun mangaDetailsParse(response: Response): SManga {
+        val data = response.parseAs<MangaDetailsDto>()
+
+        return data.toSManga()
+    }
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        val data = response.parseAs<MangaDetailsDto>()
+
+        return data.toSChapterList()
+    }
+
+    override fun pageListParse(response: Response): List<Page> {
+        val data = response.parseAs<ChapterDetailsDto>()
+
+        return data.toPageList(baseUrl)
+    }
+
+    override fun imageUrlParse(response: Response) = throw UnsupportedOperationException()
+
+    override fun getFilterList() = FilterList(
+        Filter.Header("Filters are ignored when using text search."),
+        StatusFilter(),
+        SortFilter(),
+        GenreFilter(genres),
+    )
+
+    private inline fun <reified T> Response.parseAs(): T =
+        json.decodeFromString(body.string())
+}
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartFilters.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartFilters.kt
new file mode 100644
index 000000000..bc5534fc1
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartFilters.kt
@@ -0,0 +1,106 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart
+
+import eu.kanade.tachiyomi.source.model.Filter
+import okhttp3.HttpUrl
+
+interface UriFilter {
+    fun addToUri(builder: HttpUrl.Builder)
+}
+
+open class UriPartFilter(
+    name: String,
+    private val query: String,
+    private val vals: Array<Pair<String, String>>,
+    state: Int = 0,
+) : UriFilter, Filter.Select<String>(name, vals.map { it.first }.toTypedArray(), state) {
+    override fun addToUri(builder: HttpUrl.Builder) {
+        builder.addQueryParameter(query, vals[state].second)
+    }
+}
+
+class StatusFilter : UriPartFilter(
+    "Status",
+    "status",
+    arrayOf(
+        "All" to "",
+        "Ongoing" to "ongoing",
+        "Completed" to "completed",
+    ),
+)
+
+class SortFilter(state: Int = 1) : UriPartFilter(
+    "Sort by",
+    "sort",
+    arrayOf(
+        "Recently updated" to "",
+        "Most viewed" to "most_viewed",
+        "Most viewed today" to "most_viewed_today",
+    ),
+    state,
+)
+
+data class Genre(val name: String, val path: String) {
+    override fun toString() = name
+}
+
+class GenreFilter(genres: Array<Genre>) : Filter.Select<Genre>("Genre", genres)
+
+// copy([...$0.querySelectorAll("option")].filter((e) => e.value !== "/all").map((e) => `Genre("${e.textContent}", "${e.value.split("/").slice(1, 3).join("/")}"),`).join("\n"))
+val genres = arrayOf(
+    Genre("All", "genres"),
+    Genre("action", "genre/85"),
+    Genre("adult", "genre/139"),
+    Genre("adventure", "genre/86"),
+    Genre("Alternative World", "genre/149"),
+    Genre("animated", "genre/140"),
+    Genre("comedy", "genre/87"),
+    Genre("cooking", "genre/134"),
+    Genre("drama", "genre/114"),
+    Genre("ecchi", "genre/88"),
+    Genre("Elves", "genre/150"),
+    Genre("fantasy", "genre/89"),
+    Genre("Food", "genre/152"),
+    Genre("Game", "genre/155"),
+    Genre("gender bender", "genre/111"),
+    Genre("harem", "genre/90"),
+    Genre("historical", "genre/115"),
+    Genre("horror", "genre/127"),
+    Genre("Isekai", "genre/144"),
+    Genre("josei", "genre/130"),
+    Genre("loli", "genre/91"),
+    Genre("Lolicon", "genre/148"),
+    Genre("Magic", "genre/151"),
+    Genre("manhua", "genre/128"),
+    Genre("manhwa", "genre/125"),
+    Genre("martial arts", "genre/126"),
+    Genre("mature", "genre/112"),
+    Genre("mecha", "genre/143"),
+    Genre("medical", "genre/132"),
+    Genre("moe", "genre/141"),
+    Genre("mystery", "genre/121"),
+    Genre("N/A", "genre/156"),
+    Genre("one shot", "genre/142"),
+    Genre("Oneshot", "genre/157"),
+    Genre("psychological", "genre/119"),
+    Genre("romance", "genre/106"),
+    Genre("school life", "genre/108"),
+    Genre("sci fi", "genre/122"),
+    Genre("Sci-fi", "genre/146"),
+    Genre("seinen", "genre/107"),
+    Genre("Shotacon", "genre/154"),
+    Genre("shoujo", "genre/120"),
+    Genre("shoujo ai", "genre/131"),
+    Genre("shounen", "genre/118"),
+    Genre("shounen ai", "genre/109"),
+    Genre("slice of life", "genre/92"),
+    Genre("smut", "genre/123"),
+    Genre("sports", "genre/124"),
+    Genre("supernatural", "genre/93"),
+    Genre("tragedy", "genre/135"),
+    Genre("trap (crossdressing)", "genre/138"),
+    Genre("Updating", "genre/147"),
+    Genre("War", "genre/153"),
+    Genre("webtoons", "genre/116"),
+    Genre("Yaoi", "genre/161"),
+    Genre("yuri", "genre/110"),
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartUtils.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartUtils.kt
new file mode 100644
index 000000000..0d2b24dfc
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/RawdevartartUtils.kt
@@ -0,0 +1,88 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart
+
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.ChapterDetailsDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.ChapterDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.MangaDetailsDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.MangaDto
+import eu.kanade.tachiyomi.extension.ja.rawdevartart.dto.PaginatedMangaList
+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 org.jsoup.Jsoup
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.text.SimpleDateFormat
+import java.util.Locale
+
+private val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
+
+fun PaginatedMangaList.toMangasPage(): MangasPage {
+    val manga = mangaList.map { it.toSManga() }
+    val hasNextPage = (pagi.button?.next ?: 0) != 0
+
+    return MangasPage(manga, hasNextPage)
+}
+
+private fun MangaDto.toSManga() = SManga.create().apply {
+    // The website URL is manually calculated using a slugify function that I am too
+    // lazy to reimplement.
+    url = "/spa/manga/$id"
+    title = name
+    thumbnail_url = coverImage
+}
+
+fun MangaDetailsDto.toSManga() = SManga.create().apply {
+    title = detail.name
+    author = authors.joinToString { it.name }
+    description = buildString {
+        if (!detail.alternativeName.isNullOrEmpty()) {
+            append("Alternative Title: ")
+            appendLine(detail.alternativeName)
+            appendLine()
+        }
+
+        if (!detail.description.isNullOrEmpty()) {
+            append(detail.description)
+        }
+    }
+    genre = tags.joinToString { it.name }
+    status = if (detail.status) SManga.COMPLETED else SManga.ONGOING
+    thumbnail_url = detail.coverImageFull ?: detail.coverImage
+}
+
+fun MangaDetailsDto.toSChapterList() = chapters.map { it.toSChapter(detail.id) }
+
+private fun ChapterDto.toSChapter(mangaId: Int) = SChapter.create().apply {
+    url = "/spa/manga/$mangaId/$number"
+    name = buildString {
+        append("Chapter ")
+        append(formatChapterNumber(number))
+
+        if (title.isNotEmpty()) {
+            append(": ")
+            append(title)
+        }
+    }
+    chapter_number = number
+    date_upload = runCatching {
+        dateFormat.parse(datePublished)!!.time
+    }.getOrDefault(0L)
+}
+
+fun ChapterDetailsDto.toPageList(baseUrl: String): List<Page> {
+    val document = Jsoup.parseBodyFragment(detail.content!!, baseUrl)
+
+    return document.select("div.chapter-img canvas").mapIndexed { i, it ->
+        Page(i, imageUrl = it.absUrl("data-srcset"))
+    }
+}
+
+private val formatter = DecimalFormat(
+    "#.###",
+    DecimalFormatSymbols().apply { decimalSeparator = '.' },
+)
+
+fun formatChapterNumber(chapterNumber: Float): String {
+    return formatter.format(chapterNumber)
+}
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDetailsDto.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDetailsDto.kt
new file mode 100644
index 000000000..69ff1ce8a
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDetailsDto.kt
@@ -0,0 +1,9 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ChapterDetailsDto(
+    @SerialName("chapter_detail") val detail: ChapterDto,
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDto.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDto.kt
new file mode 100644
index 000000000..17834a2e9
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/ChapterDto.kt
@@ -0,0 +1,13 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ChapterDto(
+    @SerialName("chapter_id") val id: String,
+    @SerialName("chapter_title") val title: String,
+    @SerialName("chapter_number") val number: Float,
+    @SerialName("chapter_date_published") val datePublished: String,
+    @SerialName("chapter_content") val content: String? = null,
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDetailsDto.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDetailsDto.kt
new file mode 100644
index 000000000..0bcba45f4
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDetailsDto.kt
@@ -0,0 +1,11 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class MangaDetailsDto(
+    val detail: MangaDto,
+    val tags: List<TagDto>,
+    val authors: List<AuthorDto>,
+    val chapters: List<ChapterDto>,
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDto.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDto.kt
new file mode 100644
index 000000000..3478609e6
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/MangaDto.kt
@@ -0,0 +1,15 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class MangaDto(
+    @SerialName("manga_name") val name: String,
+    @SerialName("manga_cover_img") val coverImage: String,
+    @SerialName("manga_id") val id: Int,
+    @SerialName("manga_others_name") val alternativeName: String? = null,
+    @SerialName("manga_status") val status: Boolean = false,
+    @SerialName("manga_description") val description: String? = null,
+    @SerialName("manga_cover_img_full") val coverImageFull: String? = null,
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/PaginatedMangaList.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/PaginatedMangaList.kt
new file mode 100644
index 000000000..7220db7c9
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/PaginatedMangaList.kt
@@ -0,0 +1,21 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ButtonData(
+    val prev: Int,
+    val next: Int,
+)
+
+@Serializable
+data class PaginationData(
+    val button: ButtonData? = null,
+)
+
+@Serializable
+data class PaginatedMangaList(
+    @SerialName("manga_list") val mangaList: List<MangaDto>,
+    val pagi: PaginationData,
+)
diff --git a/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/TagDto.kt b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/TagDto.kt
new file mode 100644
index 000000000..d3aca79ec
--- /dev/null
+++ b/src/ja/rawdevartart/src/eu/kanade/tachiyomi/extension/ja/rawdevartart/dto/TagDto.kt
@@ -0,0 +1,16 @@
+package eu.kanade.tachiyomi.extension.ja.rawdevartart.dto
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class TagDto(
+    @SerialName("tag_name") val name: String,
+    @SerialName("tag_id") val id: Int,
+)
+
+@Serializable
+data class AuthorDto(
+    @SerialName("author_name") val name: String,
+    @SerialName("author_id") val id: Int,
+)