diff --git a/Cargo.toml b/Cargo.toml
index 2b0afcc..644fa08 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,11 +7,14 @@ version = "0.0.0"
 crate-type = ["cdylib"]
 
 [dependencies]
-lodepng = "3.10.4"
 # Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
 napi = { version = "2.12.2", default-features = false, features = ["napi4"] }
 napi-derive = "2.12.2"
-sha2 = "0.10.8"
+
+lodepng = { version = "3.7.0", default-features = false }
+flate2 = { package = "flate2", version = "1.0.24", features = ["zlib"], default-features = false }
+rgb = "0.8.34"
+sha2 = "0.10.6"
 
 [build-dependencies]
 napi-build = "2.0.1"
diff --git a/__test__/index.spec.mjs b/__test__/index.spec.mjs
index 1ade4ca..388b935 100644
--- a/__test__/index.spec.mjs
+++ b/__test__/index.spec.mjs
@@ -1,7 +1,22 @@
 import test from 'ava'
 
-import { sum } from '../index.js'
+import { sum, encodeImage } from '../index.js'
+import * as fs from "node:fs";
 
 test('sum from native', (t) => {
-  t.is(sum(1, 2), 3)
+    t.is(sum(1, 2), 3)
 })
+
+test('encode random 1', t => {
+    let buffer = fs.readFileSync('images/6a12c0010c6e708422f5ba5121ba4a8adc9c7374c2b96fd0754c84f25e181598.png');
+    let arr = new Uint8Array(buffer);
+    let encoded = encodeImage(arr);
+
+    let hash = Buffer.from(encoded.hash).toString('hex');
+    console.log(hash);
+
+    let mchash = Buffer.from(encoded.minecraftHash).toString('hex');
+    console.log(mchash);
+
+    console.log(encoded.hex)
+})
\ No newline at end of file
diff --git a/index.d.ts b/index.d.ts
index 2419c97..0ed5883 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -4,9 +4,10 @@
 /* auto-generated by NAPI-RS */
 
 export declare function sum(a: number, b: number): number
-export declare function encodeImage(rawData: Uint8Array): ImageWithHashes
+export declare function encodeImage(buffer: Uint8Array): ImageWithHashes
 export declare class ImageWithHashes {
-  png: Uint8Array
-  minecraftHash: Uint8Array
-  hash: Uint8Array
+  png: Buffer
+  minecraftHash: Buffer
+  hash: Buffer
+  hex: string
 }
diff --git a/package.json b/package.json
index c473db4..6d42cf9 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
   "license": "MIT",
   "devDependencies": {
     "@napi-rs/cli": "^2.18.4",
-    "ava": "^6.0.1"
+    "ava": "^6.0.1",
+    "canvas": "^2.11.2"
   },
   "ava": {
     "timeout": "3m"
diff --git a/randomImage.js b/randomImage.js
new file mode 100644
index 0000000..cc26a2d
--- /dev/null
+++ b/randomImage.js
@@ -0,0 +1,37 @@
+const fs = require('fs');
+const {createCanvas, loadImage} = require("canvas");
+
+function makeRandomImage(width = 64, height = 64) {
+    const canvas = createCanvas(width, height);
+    const context = canvas.getContext("2d");
+    const imageData = context.getImageData(0, 0, width, height);
+
+    // https://gist.github.com/biovisualize/5400576#file-index-html-L26
+    const buffer = new ArrayBuffer(imageData.data.length);
+    const clampedBuffer = new Uint8ClampedArray(buffer);
+    const data = new Uint32Array(buffer);
+
+    for (let x = 0; x < width; x++) {
+        for (let y = 0; y < height; y++) {
+            data[y * width + x] =
+                (255 << 24) |
+                (((Math.random() * 300) % 255) << 16) |
+                (((Math.random() * 300) % 255) << 8) |
+                (((Math.random() * 300) % 255))
+        }
+    }
+
+    imageData.data.set(clampedBuffer);
+    context.putImageData(imageData, 0, 0);
+
+    // Make Buffer
+    const dataUrl = canvas.toDataURL("image/png").substr("data:image/png;base64,".length);
+    const imageBuffer = new Buffer(dataUrl, 'base64');
+    const blob = new Blob([imageBuffer], { type: "image/png" });
+    return { imageBuffer, imageData, data, blob }
+}
+
+(() => {
+    const { imageBuffer, imageData, data, blob } = makeRandomImage(64, 64);
+    fs.writeFileSync('images/randomImage.png', imageBuffer);
+})();
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index a546d1f..0617d33 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,6 @@
 #![deny(clippy::all)]
 
-use lodepng::FilterStrategy;
+use lodepng::{FilterStrategy, RGBA};
 use sha2::{Digest, Sha256};
 use napi::{
     bindgen_prelude::{Buffer, ClassInstance, ObjectFinalize, This, Uint8Array, Unknown},
@@ -22,28 +22,40 @@ pub fn sum(a: i32, b: i32) -> i32 {
 
 #[napi]
 pub struct ImageWithHashes {
-    pub png: Uint8Array,
-    pub minecraft_hash: Uint8Array,
-    pub hash: Uint8Array,
+    pub png: Buffer,
+    pub minecraft_hash: Buffer,
+    pub hash: Buffer,
+    pub hex: String,
 }
 
 #[napi]
-pub fn encode_image(raw_data: &[u8]) -> ImageWithHashes {
-    encode_custom_image(raw_data, SKIN_WIDTH, SKIN_HEIGHT)
+pub fn encode_image(buffer: &[u8]) -> ImageWithHashes {
+    encode_custom_image(buffer, SKIN_WIDTH as usize, SKIN_HEIGHT as usize)
 }
 
+// based on https://github.com/GeyserMC/global_api/blob/dev/1.0.2/native/skins/src/skin_convert/skin_codec.rs#L100
 //#[napi]
-pub fn encode_custom_image(raw_data: &[u8], width: u8, height: u8) -> ImageWithHashes {
+pub fn encode_custom_image(buffer: &[u8], width: usize, height: usize) -> ImageWithHashes {
+    let mut raw_data = vec![0; width * height * SKIN_CHANNELS as usize];
+    buffer.iter().enumerate().for_each(|(i, byte)| {
+        raw_data[i] = *byte;
+    });
+
     // encode images like Minecraft does
     let mut encoder = lodepng::Encoder::new();
     encoder.set_auto_convert(false);
     encoder.info_png_mut().interlace_method = 0; // should be 0 but just to be sure
 
-    let mut encoder_settings = encoder.settings_mut();
+    let encoder_settings = encoder.settings_mut();
     encoder_settings.zlibsettings.set_level(4);
     encoder_settings.filter_strategy = FilterStrategy::ZERO;
 
-    let png = encoder.encode(raw_data, width as usize, height as usize).unwrap();
+    println!("Encoding image with width: {}, height: {}", width, height);
+    println!("Raw data length: {}", raw_data.len());
+
+    let result = encoder.encode(&raw_data, width, height);
+    println!("Result: {:?}", result);
+    let png = result.unwrap();
 
     let mut hasher = Sha256::new();
 
@@ -51,12 +63,23 @@ pub fn encode_custom_image(raw_data: &[u8], width: u8, height: u8) -> ImageWithH
     let minecraft_hash = hasher.finalize_reset();
 
     // make our own hash
-    hasher.update(raw_data);
+    hasher.update(&raw_data);
     let hash = hasher.finalize();
 
+    let hex = write_hex(minecraft_hash.as_ref());
+
     ImageWithHashes {
-        png: Uint8Array::from(png.as_slice()),
-        minecraft_hash: Uint8Array::from(minecraft_hash.as_slice()),
-        hash: Uint8Array::from(hash.as_slice()),
+        png: Buffer::from(png.as_slice()),
+        minecraft_hash: Buffer::from(minecraft_hash.as_slice()),
+        hash: Buffer::from(hash.as_slice()),
+        hex: hex
+    }
+}
+
+fn write_hex(bytes: &[u8]) -> String {
+    let mut s = String::with_capacity(2 * bytes.len());
+    for byte in bytes {
+        core::fmt::write(&mut s, format_args!("{:02X}", byte)).unwrap();
     }
+    s
 }
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 161fbdb..23709d5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-"@mapbox/node-pre-gyp@^1.0.5":
+"@mapbox/node-pre-gyp@^1.0.0", "@mapbox/node-pre-gyp@^1.0.5":
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz#417db42b7f5323d79e93b34a6d7a2a12c0df43fa"
   integrity sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==
@@ -248,6 +248,15 @@ callsites@^4.1.0:
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-4.2.0.tgz#98761d5be3ce092e4b9c92f7fb8c8eb9b83cadc8"
   integrity sha512-kfzR4zzQtAE9PC7CzZsjl3aBNbXWuXiSeOCdLcPpBfGW8YuCqQHcRPFDbr/BPVmd3EEPVpuFzLyuT/cUhPr4OQ==
 
+canvas@^2.11.2:
+  version "2.11.2"
+  resolved "https://registry.yarnpkg.com/canvas/-/canvas-2.11.2.tgz#553d87b1e0228c7ac0fc72887c3adbac4abbd860"
+  integrity sha512-ItanGBMrmRV7Py2Z+Xhs7cT+FNt5K0vPL4p9EZ/UX/Mu7hFbkxSjKF2KVtPwX7UYWp7dRKnrTvReflgrItJbdw==
+  dependencies:
+    "@mapbox/node-pre-gyp" "^1.0.0"
+    nan "^2.17.0"
+    simple-get "^3.0.3"
+
 cbor@^9.0.1:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/cbor/-/cbor-9.0.2.tgz#536b4f2d544411e70ec2b19a2453f10f83cd9fdb"
@@ -376,6 +385,13 @@ debug@4, debug@^4.3.4:
   dependencies:
     ms "2.1.2"
 
+decompress-response@^4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-4.2.1.tgz#414023cc7a302da25ce2ec82d0d5238ccafd8986"
+  integrity sha512-jOSne2qbyE+/r8G1VU+G/82LBs2Fs4LAsTiLSHOCOMZQl2OKZ6i8i4IyHemTe+/yIXOtTcRQMzPcgyhoFlqPkw==
+  dependencies:
+    mimic-response "^2.0.0"
+
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -713,6 +729,11 @@ mimic-function@^5.0.0:
   resolved "https://registry.yarnpkg.com/mimic-function/-/mimic-function-5.0.1.tgz#acbe2b3349f99b9deaca7fb70e48b83e94e67076"
   integrity sha512-VP79XUPxV2CigYP3jWwAUFSku2aKqBH7uTAapFWCBqutsbmDo96KY5o8uh6U+/YSIn5OxJnXp73beVkpqMIGhA==
 
+mimic-response@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-2.1.0.tgz#d13763d35f613d09ec37ebb30bac0469c0ee8f43"
+  integrity sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA==
+
 minimatch@^3.1.1:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
@@ -755,6 +776,11 @@ ms@^2.1.3:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
+nan@^2.17.0:
+  version "2.20.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.20.0.tgz#08c5ea813dd54ed16e5bd6505bf42af4f7838ca3"
+  integrity sha512-bk3gXBZDGILuuo/6sKtr0DQmSThYHLtNCdSdXk9YkxD/jK6X2vmCyyXBBxyqZ4XcnzTyYEAThfX3DCEnLf6igw==
+
 node-fetch@^2.6.7:
   version "2.7.0"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.7.0.tgz#d0f0fa6e3e2dc1d27efcd8ad99d550bda94d187d"
@@ -794,7 +820,7 @@ object-assign@^4.1.1:
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
   integrity sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==
 
-once@^1.3.0:
+once@^1.3.0, once@^1.3.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==
@@ -940,6 +966,20 @@ signal-exit@^4.0.1:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-4.1.0.tgz#952188c1cbd546070e2dd20d0f41c0ae0530cb04"
   integrity sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==
 
+simple-concat@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/simple-concat/-/simple-concat-1.0.1.tgz#f46976082ba35c2263f1c8ab5edfe26c41c9552f"
+  integrity sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==
+
+simple-get@^3.0.3:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-3.1.1.tgz#cc7ba77cfbe761036fbfce3d021af25fc5584d55"
+  integrity sha512-CQ5LTKGfCpvE1K0n2us+kuMPbk/q0EKl82s4aheV9oXjFEz6W/Y7oQFVJuU6QG77hRT4Ghb5RURteF5vnWjupA==
+  dependencies:
+    decompress-response "^4.2.0"
+    once "^1.3.1"
+    simple-concat "^1.0.0"
+
 slash@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-5.1.0.tgz#be3adddcdf09ac38eebe8dcdc7b1a57a75b095ce"