diff --git a/Cargo.lock b/Cargo.lock
index 1fadbc8..d4f11ad 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -159,6 +159,12 @@ dependencies = [
  "unscanny",
 ]
 
+[[package]]
+name = "bit_field"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -171,18 +177,6 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
-[[package]]
-name = "bitvec"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
-dependencies = [
- "funty",
- "radium",
- "tap",
- "wyz",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -325,22 +319,18 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "98cc8fbded0c607b7ba9dd60cd98df59af97e84d24e49c8557331cfc26d301ce"
 
-[[package]]
-name = "clap_mangen"
-version = "0.2.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f50dde5bc0c853d6248de457e5eb6e5a674a54b93810a34ded88d882ca1fe2de"
-dependencies = [
- "clap",
- "roff",
-]
-
 [[package]]
 name = "codemap"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9e769b5c8c8283982a987c6e948e540254f1058d5a74b8794914d4ef5fc2a24"
 
+[[package]]
+name = "color_quant"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
+
 [[package]]
 name = "colorchoice"
 version = "1.0.1"
@@ -371,6 +361,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.12"
@@ -544,6 +543,31 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
+[[package]]
+name = "exr"
+version = "1.72.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "887d93f60543e9a9362ef8a21beedd0a833c5d9610e18c67abe15a5963dcb1a4"
+dependencies = [
+ "bit_field",
+ "flume",
+ "half",
+ "lebe",
+ "miniz_oxide",
+ "rayon-core",
+ "smallvec",
+ "zune-inflate",
+]
+
+[[package]]
+name = "fdeflate"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f9bfee30e4dedf0ab8b422f03af778d9612b63f502710fc500a334ebe2de645"
+dependencies = [
+ "simd-adler32",
+]
+
 [[package]]
 name = "filetime"
 version = "0.2.23"
@@ -556,6 +580,25 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "flate2"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f54427cfd1c7829e2a139fcefea601bf088ebca651d2bf53ebc600eac295dae"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide",
+]
+
+[[package]]
+name = "flume"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55ac459de2512911e4b674ce33cf20befaba382d05b62b008afc1c8b57cbf181"
+dependencies = [
+ "spin",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -580,12 +623,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "funty"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
-
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -618,6 +655,16 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "gif"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fb2d69b19215e18bb912fa30f7ce15846e301408695e44e0ef719f1da9e19f2"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
 [[package]]
 name = "gimli"
 version = "0.28.1"
@@ -833,6 +880,24 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "image"
+version = "0.24.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5690139d2f55868e080017335e4b94cb7414274c74f1669c84fb5feba2c9f69d"
+dependencies = [
+ "bytemuck",
+ "byteorder",
+ "color_quant",
+ "exr",
+ "gif",
+ "jpeg-decoder",
+ "num-traits",
+ "png",
+ "qoi",
+ "tiff",
+]
+
 [[package]]
 name = "indexmap"
 version = "2.2.6"
@@ -841,7 +906,6 @@ checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
  "hashbrown 0.14.3",
- "rayon",
  "serde",
 ]
 
@@ -886,6 +950,15 @@ version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
 
+[[package]]
+name = "jpeg-decoder"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5d4a7da358eff58addd2877a45865158f0d78c911d43a5784ceb7bbf52833b0"
+dependencies = [
+ "rayon",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.69"
@@ -943,30 +1016,18 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "lebe"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
+
 [[package]]
 name = "libc"
 version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
-[[package]]
-name = "libdeflate-sys"
-version = "1.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "669ea17f9257bcb48c09c7ee4bef3957777504acffac557263e20c11001977bc"
-dependencies = [
- "cc",
-]
-
-[[package]]
-name = "libdeflater"
-version = "1.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dfd6424f7010ee0a3416f1d796d0450e3ad3ac237a237644f728277c4ded016"
-dependencies = [
- "libdeflate-sys",
-]
-
 [[package]]
 name = "libquickjs-sys"
 version = "0.9.0"
@@ -977,6 +1038,16 @@ dependencies = [
  "copy_dir",
 ]
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -996,6 +1067,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8a240ddb74feaf34a79a7add65a741f3167852fba007066dcac1ca548d89c08"
 dependencies = [
  "adler",
+ "simd-adler32",
 ]
 
 [[package]]
@@ -1080,26 +1152,6 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
-[[package]]
-name = "oxipng"
-version = "9.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f398c53eb34e0cf71d9e0bc676cfa7c611e3844dd14ab05e92fb7b423c98ecf"
-dependencies = [
- "bitvec",
- "clap",
- "clap_mangen",
- "crossbeam-channel",
- "filetime",
- "indexmap",
- "libdeflater",
- "log",
- "rayon",
- "rgb",
- "rustc-hash",
- "rustc_version",
-]
-
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -1160,6 +1212,19 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bda66fc9667c18cb2758a2ac84d1167245054bcf85d5d1aaa6923f45801bdd02"
 
+[[package]]
+name = "png"
+version = "0.17.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06e4b0d3d1312775e782c86c91a111aa1f910cbb65e1337f9975b5f9a554b5e1"
+dependencies = [
+ "bitflags 1.3.2",
+ "crc32fast",
+ "fdeflate",
+ "flate2",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -1229,6 +1294,15 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "007d8adb5ddab6f8e3f491ac63566a7d5002cc7ed73901f72057943fa71ae1ae"
 
+[[package]]
+name = "qoi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6d64c71eb498fe9eae14ce4ec935c555749aef511cca85b5568910d6e48001"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "quick-js"
 version = "0.4.1"
@@ -1258,12 +1332,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "radium"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
-
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -1352,21 +1420,6 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
-[[package]]
-name = "rgb"
-version = "0.8.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7439be6844e40133eda024efd85bf07f59d0dd2f59b10c00dd6cfb92cc5c741"
-dependencies = [
- "bytemuck",
-]
-
-[[package]]
-name = "roff"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b833d8d034ea094b1ea68aa6d5c740e0d04bad9d16568d08ba6f76823a114316"
-
 [[package]]
 name = "rstml"
 version = "0.11.2"
@@ -1387,21 +1440,6 @@ version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
-[[package]]
-name = "rustc-hash"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
-
-[[package]]
-name = "rustc_version"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "rustversion"
 version = "1.0.14"
@@ -1424,10 +1462,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "semver"
-version = "1.0.23"
+name = "scopeguard"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "serde"
@@ -1508,12 +1546,33 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "simd-adler32"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d66dc143e6b11c1eddc06d5c423cfc97062865baf299914ab64caa38182078fe"
+
 [[package]]
 name = "siphasher"
 version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38b58827f4464d87d377d175e90bf58eb00fd8716ff0a62f80356b5e61555d0d"
 
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+dependencies = [
+ "lock_api",
+]
+
 [[package]]
 name = "ssg"
 version = "0.1.0"
@@ -1527,12 +1586,12 @@ dependencies = [
  "gray_matter",
  "hayagriva",
  "hypertext",
+ "image",
  "katex",
  "notify",
  "notify-debouncer-mini",
  "npezza93-tree-sitter-nix",
  "once_cell",
- "oxipng",
  "pulldown-cmark",
  "regex",
  "serde",
@@ -1622,12 +1681,6 @@ dependencies = [
  "syn 2.0.53",
 ]
 
-[[package]]
-name = "tap"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
-
 [[package]]
 name = "thiserror"
 version = "1.0.59"
@@ -1648,6 +1701,17 @@ dependencies = [
  "syn 2.0.53",
 ]
 
+[[package]]
+name = "tiff"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba1310fcea54c6a9a4fd1aad794ecc02c31682f6bfbecdf460bf19533eed1e3e"
+dependencies = [
+ "flate2",
+ "jpeg-decoder",
+ "weezl",
+]
+
 [[package]]
 name = "tinystr"
 version = "0.7.5"
@@ -2027,6 +2091,12 @@ version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
+[[package]]
+name = "weezl"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -2199,15 +2269,6 @@ version = "0.52.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
 
-[[package]]
-name = "wyz"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
-dependencies = [
- "tap",
-]
-
 [[package]]
 name = "yaml-rust2"
 version = "0.8.1"
@@ -2238,3 +2299,12 @@ dependencies = [
  "quote",
  "syn 2.0.53",
 ]
+
+[[package]]
+name = "zune-inflate"
+version = "0.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
+dependencies = [
+ "simd-adler32",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 44a7196..da6921d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,9 +13,9 @@ grass                  = { version = "0.13.3", default-features = false, feature
 gray_matter            = { version = "0.2.8", default-features = false, features = ["yaml"] }
 hayagriva              = "0.5.3"
 hypertext              = "0.5.1"
+image                  = "0.24.0"
 katex                  = "0.4.6"
 once_cell              = "1.19.0"
-oxipng                 = { version = "9.1.1", default-features = false, features = ["filetime", "parallel"] }
 regex                  = "1.10.5"
 serde                  = { version = "1.0.203", features = ["derive"] }
 sha256                 = "1.5.0"
diff --git a/src/build.rs b/src/build.rs
index 3fc8d9b..9a13529 100644
--- a/src/build.rs
+++ b/src/build.rs
@@ -113,24 +113,25 @@ fn render_all(
 }
 
 fn store_hash_png(data: &[u8]) -> Utf8PathBuf {
-	let store = Utf8Path::new(".hash").join("png");
-	let hash = sha256::digest(data);
-	let hash_path = store.join(&hash).with_extension("png");
-	if !hash_path.exists() {
-		let opts = oxipng::Options {
-			interlace: Some(oxipng::Interlacing::Adam7),
-			..Default::default()
-		};
-		let data = oxipng::optimize_from_memory(data, &opts).expect("PNG Error");
-		fs::create_dir_all(&store).unwrap();
-		fs::write(hash_path, data).expect("Couldn't output optimized PNG");
+	let store = Utf8Path::new(".hash");
+	let ident = sha256::digest(data);
+	let store_hash = store.join(&ident).with_extension("webp");
+
+	if !store_hash.exists() {
+		let img = image::load_from_memory(data).expect("Couldn't load image");
+		let dim = (img.width(), img.height());
+		let mut out = Vec::new();
+		let encoder = image::codecs::webp::WebPEncoder::new_lossless(&mut out);
+		encoder.encode(&img.to_rgba8(), dim.0, dim.1, image::ColorType::Rgba8).expect("Encoding error");
+
+		fs::create_dir_all(store).unwrap();
+		fs::write(store_hash, out).expect("Couldn't output optimized image");
 	}
 
 	Utf8Path::new("/")
 		.join("hash")
-		.join("png")
-		.join(hash)
-		.with_extension("png")
+		.join(ident)
+		.with_extension("webp")
 }
 
 #[derive(Debug)]