diff --git a/src/pt/nixmangas/AndroidManifest.xml b/src/pt/nixmangas/AndroidManifest.xml
new file mode 100644
index 000000000..389c51256
--- /dev/null
+++ b/src/pt/nixmangas/AndroidManifest.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="eu.kanade.tachiyomi.extension" />
+
diff --git a/src/pt/nixmangas/build.gradle b/src/pt/nixmangas/build.gradle
new file mode 100644
index 000000000..6b0324e54
--- /dev/null
+++ b/src/pt/nixmangas/build.gradle
@@ -0,0 +1,13 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlinx-serialization'
+
+ext {
+    extName = 'Nix Mangás'
+    pkgNameSuffix = 'pt.nixmangas'
+    extClass = '.NixMangas'
+    extVersionCode = 1
+    isNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/pt/nixmangas/res/mipmap-hdpi/ic_launcher.png b/src/pt/nixmangas/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/pt/nixmangas/res/mipmap-mdpi/ic_launcher.png b/src/pt/nixmangas/res/mipmap-mdpi/ic_launcher.png
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index 000000000..008d349da
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diff --git a/src/pt/nixmangas/res/mipmap-xhdpi/ic_launcher.png b/src/pt/nixmangas/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/pt/nixmangas/res/mipmap-xxhdpi/ic_launcher.png b/src/pt/nixmangas/res/mipmap-xxhdpi/ic_launcher.png
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diff --git a/src/pt/nixmangas/res/mipmap-xxxhdpi/ic_launcher.png b/src/pt/nixmangas/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/pt/nixmangas/res/web_hi_res_512.png b/src/pt/nixmangas/res/web_hi_res_512.png
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diff --git a/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangas.kt b/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangas.kt
new file mode 100644
index 000000000..7c8b4ac01
--- /dev/null
+++ b/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangas.kt
@@ -0,0 +1,166 @@
+package eu.kanade.tachiyomi.extension.pt.nixmangas
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
+import eu.kanade.tachiyomi.network.interceptor.rateLimitHost
+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.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import rx.Observable
+import uy.kohesive.injekt.injectLazy
+import java.util.concurrent.TimeUnit
+
+class NixMangas : HttpSource() {
+
+    override val name = "Nix Mangás"
+
+    override val baseUrl = "https://nixmangas.com"
+
+    override val lang = "pt-BR"
+
+    override val supportsLatest = true
+
+    override val client: OkHttpClient = network.cloudflareClient.newBuilder()
+        .rateLimitHost(baseUrl.toHttpUrl(), 1, 1, TimeUnit.SECONDS)
+        .rateLimitHost(API_URL.toHttpUrl(), 1, 1, TimeUnit.SECONDS)
+        .rateLimitHost(CDN_URL.toHttpUrl(), 1, 2, TimeUnit.SECONDS)
+        .build()
+
+    private val json: Json by injectLazy()
+
+    private val apiHeaders: Headers by lazy { apiHeadersBuilder().build() }
+
+    override fun headersBuilder(): Headers.Builder = Headers.Builder()
+        .add("Origin", baseUrl)
+        .add("Referer", baseUrl)
+
+    private fun apiHeadersBuilder(): Headers.Builder = headersBuilder()
+        .add("Accept", ACCEPT_JSON)
+
+    /**
+     * The site doesn't have a popular section, so we use latest instead.
+     */
+    override fun popularMangaRequest(page: Int) = latestUpdatesRequest(page)
+
+    override fun popularMangaParse(response: Response) = latestUpdatesParse(response)
+
+    override fun latestUpdatesRequest(page: Int): Request {
+        return GET("$API_URL/mangas?page=$page", apiHeaders)
+    }
+
+    override fun latestUpdatesParse(response: Response): MangasPage {
+        val result = response.parseAs<NixMangasPaginatedContent<NixMangasWorkDto>>()
+        val workList = result.data.map(NixMangasWorkDto::toSManga)
+
+        return MangasPage(workList, result.hasNextPage)
+    }
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        // The search with query isn't working in their direct API for some reason,
+        // so we use their site wrapped API instead for now.
+        val apiUrl = "$baseUrl/obras".toHttpUrl().newBuilder()
+            .addQueryParameter("page", page.toString())
+            .addQueryParameter("q", query)
+            .addQueryParameter("_data", "routes/__app/obras/index")
+            .toString()
+
+        return GET(apiUrl, apiHeaders)
+    }
+
+    override fun searchMangaParse(response: Response): MangasPage {
+        val result = response.parseAs<NixMangasSearchDto>()
+        val workList = result.mangas.data.map(NixMangasWorkDto::toSManga)
+
+        return MangasPage(workList, result.mangas.hasNextPage)
+    }
+
+    // Workaround to allow "Open in browser" use the real URL.
+    override fun fetchMangaDetails(manga: SManga): Observable<SManga> {
+        return client.newCall(mangaDetailsApiRequest(manga.url))
+            .asObservableSuccess()
+            .map { response ->
+                mangaDetailsParse(response).apply { initialized = true }
+            }
+    }
+
+    private fun mangaDetailsApiRequest(mangaUrl: String): Request {
+        // Their API doesn't have an endpoint for the manga details, so we
+        // use their site wrapped API instead for now.
+        val apiUrl = (baseUrl + mangaUrl).toHttpUrl().newBuilder()
+            .addQueryParameter("_data", "routes/__app/obras/\$slug")
+            .toString()
+
+        return GET(apiUrl, apiHeaders)
+    }
+
+    override fun mangaDetailsParse(response: Response): SManga {
+        val result = response.parseAs<NixMangasDetailsDto>()
+
+        return result.manga.toSManga()
+    }
+
+    override fun chapterListRequest(manga: SManga): Request = mangaDetailsApiRequest(manga.url)
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        val result = response.parseAs<NixMangasDetailsDto>()
+        val currentTimeStamp = System.currentTimeMillis()
+
+        return result.manga.chapters
+            .filter { it.isPublished }
+            .map(NixMangasChapterDto::toSChapter)
+            .filter { it.date_upload <= currentTimeStamp }
+            .sortedByDescending(SChapter::chapter_number)
+    }
+
+    override fun pageListRequest(chapter: SChapter): Request {
+        val apiUrl = (baseUrl + chapter.url).toHttpUrl().newBuilder()
+            .addQueryParameter("_data", "routes/__leitor/ler.\$manga.\$chapter")
+            .toString()
+
+        return GET(apiUrl, apiHeaders)
+    }
+
+    override fun pageListParse(response: Response): List<Page> {
+        val result = response.parseAs<NixMangasReaderDto>()
+        val chapterUrl = "$baseUrl/ler/${result.chapter.slug}"
+
+        return result.chapter.pages.mapIndexed { i, pageDto ->
+            Page(i, chapterUrl, pageDto.pageUrl)
+        }
+    }
+
+    override fun fetchImageUrl(page: Page): Observable<String> = Observable.just(page.imageUrl!!)
+
+    override fun imageUrlParse(response: Response): String = ""
+
+    override fun imageRequest(page: Page): Request {
+        val newHeaders = headersBuilder()
+            .add("Accept", ACCEPT_IMAGE)
+            .set("Referer", page.url)
+            .build()
+
+        return GET(page.imageUrl!!, newHeaders)
+    }
+
+    private inline fun <reified T> Response.parseAs(): T = use {
+        json.decodeFromString(it.body?.string().orEmpty())
+    }
+
+    companion object {
+        private const val ACCEPT_IMAGE = "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8"
+        private const val ACCEPT_JSON = "application/json"
+
+        private const val API_URL = "https://api.nixmangas.com/v1"
+        private const val CDN_URL = "https://cdn.nixmangas.com"
+    }
+}
diff --git a/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangasDto.kt b/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangasDto.kt
new file mode 100644
index 000000000..38a54fb82
--- /dev/null
+++ b/src/pt/nixmangas/src/eu/kanade/tachiyomi/extension/pt/nixmangas/NixMangasDto.kt
@@ -0,0 +1,87 @@
+package eu.kanade.tachiyomi.extension.pt.nixmangas
+
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import java.text.SimpleDateFormat
+import java.util.Locale
+import java.util.TimeZone
+
+@Serializable
+data class NixMangasPaginatedContent<T>(
+    @SerialName("current_page") val currentPage: Int,
+    val data: List<T> = emptyList(),
+    @SerialName("last_page") val lastPage: Int,
+) {
+
+    val hasNextPage: Boolean
+        get() = currentPage < lastPage
+}
+
+@Serializable
+data class NixMangasSearchDto(val mangas: NixMangasPaginatedContent<NixMangasWorkDto>)
+
+@Serializable
+data class NixMangasDetailsDto(val manga: NixMangasWorkDto)
+
+@Serializable
+data class NixMangasReaderDto(val chapter: NixMangasChapterDto)
+
+@Serializable
+data class NixMangasWorkDto(
+    val id: String,
+    val chapters: List<NixMangasChapterDto> = emptyList(),
+    val cover: String? = null,
+    val genres: List<NixMangasGenreDto> = emptyList(),
+    @SerialName("is_adult") val isAdult: Boolean = false,
+    val slug: String,
+    val status: String? = null,
+    @SerialName("synopses") val synopsis: String? = null,
+    val thumbnail: String,
+    val title: String,
+) {
+
+    fun toSManga(): SManga = SManga.create().apply {
+        title = this@NixMangasWorkDto.title
+        description = synopsis
+        genre = genres.joinToString { it.name }
+        status = when (this@NixMangasWorkDto.status) {
+            "ACTIVE" -> SManga.ONGOING
+            else -> SManga.UNKNOWN
+        }
+        thumbnail_url = cover
+        url = "/obras/$slug"
+    }
+}
+
+@Serializable
+data class NixMangasGenreDto(val name: String)
+
+@Serializable
+data class NixMangasChapterDto(
+    @SerialName("is_published") val isPublished: Boolean,
+    val number: Float,
+    val pages: List<NixMangasPageDto> = emptyList(),
+    val slug: String,
+    @SerialName("published_at") val publishedAt: String? = null,
+) {
+
+    fun toSChapter(): SChapter = SChapter.create().apply {
+        name = "Capítulo ${number.toString().replace(".0", "")}"
+        chapter_number = number
+        date_upload = runCatching { DATE_FORMATTER.parse(publishedAt!!)?.time }
+            .getOrNull() ?: 0L
+        url = "/ler/$slug"
+    }
+
+    companion object {
+        private val DATE_FORMATTER by lazy {
+            SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.S", Locale.US)
+                .apply { timeZone = TimeZone.getTimeZone("UTC") }
+        }
+    }
+}
+
+@Serializable
+data class NixMangasPageDto(@SerialName("page_url") val pageUrl: String)