diff --git a/pkgs/development/tools/wasynth/Cargo.lock b/pkgs/development/tools/wasynth/Cargo.lock
new file mode 100644
index 000000000000..80309d6086c9
--- /dev/null
+++ b/pkgs/development/tools/wasynth/Cargo.lock
@@ -0,0 +1,251 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "arbitrary"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a7924531f38b1970ff630f03eb20a2fde69db5c590c93b0f3482e95dcc5fd60"
+dependencies = [
+ "derive_arbitrary",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
+[[package]]
+name = "codegen-luajit"
+version = "0.10.0"
+dependencies = [
+ "wasm-ast",
+ "wasmparser",
+]
+
+[[package]]
+name = "codegen-luau"
+version = "0.7.0"
+dependencies = [
+ "wasm-ast",
+ "wasmparser",
+]
+
+[[package]]
+name = "derive_arbitrary"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9a577516173adb681466d517d39bd468293bc2c2a16439375ef0f35bba45f3d"
+dependencies = [
+ "proc-macro2 1.0.40",
+ "quote 1.0.20",
+ "syn 1.0.98",
+]
+
+[[package]]
+name = "dev-test"
+version = "0.10.0"
+dependencies = [
+ "codegen-luajit",
+ "codegen-luau",
+ "libfuzzer-sys",
+ "test-generator",
+ "wasm-ast",
+ "wasm-smith",
+ "wast",
+]
+
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
+[[package]]
+name = "hashbrown"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
+
+[[package]]
+name = "indexmap"
+version = "1.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
+dependencies = [
+ "autocfg",
+ "hashbrown",
+]
+
+[[package]]
+name = "leb128"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
+
+[[package]]
+name = "libfuzzer-sys"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "336244aaeab6a12df46480dc585802aa743a72d66b11937844c61bbca84c991d"
+dependencies = [
+ "arbitrary",
+ "cc",
+ "once_cell",
+]
+
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
+[[package]]
+name = "once_cell"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
+
+[[package]]
+name = "proc-macro2"
+version = "0.4.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "0.6.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
+dependencies = [
+ "proc-macro2 0.4.30",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
+dependencies = [
+ "proc-macro2 1.0.40",
+]
+
+[[package]]
+name = "syn"
+version = "0.15.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
+dependencies = [
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.98"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
+dependencies = [
+ "proc-macro2 1.0.40",
+ "quote 1.0.20",
+ "unicode-ident",
+]
+
+[[package]]
+name = "test-generator"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea97be90349ab3574f6e74d1566e1c5dd3a4bc74b89f4af4cc10ca010af103c0"
+dependencies = [
+ "glob",
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "syn 0.15.44",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bd2fe26506023ed7b5e1e315add59d6f584c621d037f9368fea9cfb988f368c"
+
+[[package]]
+name = "unicode-width"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
+
+[[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
+
+[[package]]
+name = "wasm-ast"
+version = "0.10.0"
+dependencies = [
+ "wasmparser",
+]
+
+[[package]]
+name = "wasm-encoder"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49cfbd7c23474849807ecde008c82eb38d303b07ec61d48f45b65f3c8cdd2770"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
+name = "wasm-smith"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "440458e050ee2731e85af3368ee58e23d4728d597809a88f841a24778876f2b6"
+dependencies = [
+ "arbitrary",
+ "indexmap",
+ "leb128",
+ "wasm-encoder",
+]
+
+[[package]]
+name = "wasmparser"
+version = "0.86.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcbfe95447da2aa7ff171857fc8427513eb57c75a729bb190e974dc695e8f5c"
+dependencies = [
+ "indexmap",
+]
+
+[[package]]
+name = "wast"
+version = "41.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f882898b8b817cc4edc16aa3692fdc087b356edc8cc0c2164f5b5181e31c3870"
+dependencies = [
+ "leb128",
+ "memchr",
+ "unicode-width",
+]
diff --git a/pkgs/development/tools/wasynth/default.nix b/pkgs/development/tools/wasynth/default.nix
new file mode 100644
index 000000000000..7f7d1dce5144
--- /dev/null
+++ b/pkgs/development/tools/wasynth/default.nix
@@ -0,0 +1,43 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, rustPlatform
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "wasynth";
+  version = "0.10.0";
+
+  src = fetchFromGitHub {
+    owner = "Rerumu";
+    repo = "Wasynth";
+    rev = "v${version}";
+    sha256 = "sha256-oTqCx2fCzSeBorTj5m1O95z9gUWz15BvUuEtCHhR9vQ=";
+  };
+
+  # A lock file isn't provided, so it must be added manually.
+  cargoLock.lockFile = ./Cargo.lock;
+  postPatch = ''
+    cp ${./Cargo.lock} Cargo.lock
+  '';
+
+  # Not all of the tests pass.
+  doCheck = false;
+
+  # These binaries are tests and should be removed.
+  postInstall = ''
+    rm $out/bin/{luajit,luau}_translate
+  '';
+
+  meta = with lib; {
+    description = "WebAssembly translation tools for various languages";
+    longDescription = ''
+      Wasynth provides the following WebAssembly translation tools:
+       * wasm2luajit: translate WebAssembly to LuaJIT source code
+       * wasm2luau: translate WebAssembly Luau source code
+    '';
+    homepage = "https://github.com/Rerumu/Wasynth";
+    license = with licenses; [ gpl3Only ];
+    maintainers = with maintainers; [ wackbyte ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 75a5459f788a..f51ac5ad3b7c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -35127,6 +35127,8 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) Security;
   };
 
+  wasynth = callPackage ../development/tools/wasynth { };
+
   wavegain = callPackage ../applications/audio/wavegain { };
 
   wcalc = callPackage ../applications/misc/wcalc { };