diff --git a/README.md b/README.md
index 4c722c2..af73726 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ $ staticd <tool>
 - `k9s`: [derailed/k9s][k9s], Kubernetes CLI to manage your clusters in style.
 - `upx`: [upx/upx][upx], the Ultimate Packer for eXecutables.
 - `xh`: [ducaale/xh][xh], friendly and fast tool for sending HTTP requests.
+- `yj`: [sclevine/yj][yj], convert between YAML, TOML, JSON, and HCL.
 
 [bat]: https://github.com/sharkdp/bat
 [btm]: https://github.com/ClementTsang/bottom
@@ -26,3 +27,4 @@ $ staticd <tool>
 [k9s]: https://github.com/derailed/k9s
 [upx]: https://github.com/upx/upx
 [xh]: https://github.com/ducaale/xh
+[yj]: https://github.com/sclevine/yj
diff --git a/main.go b/main.go
index ddb8837..b650bcc 100644
--- a/main.go
+++ b/main.go
@@ -133,6 +133,14 @@ func main() {
 		},
 	}
 
+	yjCmd := &cobra.Command{
+		Use:   tools.Yj,
+		Short: "Convert between YAML, TOML, JSON, and HCL",
+		Run: func(cmd *cobra.Command, args []string) {
+			run(tools.Yj)
+		},
+	}
+
 	versionCmd := &cobra.Command{
 		Use:   "version",
 		Short: "Show version",
@@ -148,6 +156,7 @@ func main() {
 	rootCmd.AddCommand(k9sCmd)
 	rootCmd.AddCommand(upxCmd)
 	rootCmd.AddCommand(xhCmd)
+	rootCmd.AddCommand(yjCmd)
 	rootCmd.AddCommand(versionCmd)
 
 	err := rootCmd.Execute()
diff --git a/tables/arch.go b/tables/arch.go
index d0bb44c..94b51df 100644
--- a/tables/arch.go
+++ b/tables/arch.go
@@ -64,4 +64,14 @@ var Arch = map[string]map[string]map[string]string{
 			"arm":   "arm",
 		},
 	},
+	Yj: {
+		"darwin": {
+			"amd64": "",
+		},
+		"linux": {
+			"amd64": "",
+			"arm":   "arm-v7",
+			"arm64": "arm64",
+		},
+	},
 }
diff --git a/tables/os.go b/tables/os.go
index 45e9215..155ccd6 100644
--- a/tables/os.go
+++ b/tables/os.go
@@ -64,4 +64,14 @@ var OS = map[string]map[string]map[string]string{
 			"arm":   "unknown-linux-gnueabihf",
 		},
 	},
+	Yj: {
+		"darwin": {
+			"amd64": "macos",
+		},
+		"linux": {
+			"amd64": "linux",
+			"arm":   "linux",
+			"arm64": "linux",
+		},
+	},
 }
diff --git a/tables/tools.go b/tables/tools.go
index 875fc83..50d6489 100644
--- a/tables/tools.go
+++ b/tables/tools.go
@@ -8,4 +8,5 @@ const (
 	K9s           = "k9s"
 	UPX           = "upx"
 	Xh            = "xh"
+	Yj            = "yj"
 )
diff --git a/tables/url.go b/tables/url.go
index 2bd28f0..6363d55 100644
--- a/tables/url.go
+++ b/tables/url.go
@@ -8,4 +8,5 @@ var URL = map[string]string{
 	K9s:           "https://github.com/derailed/k9s/releases",
 	UPX:           "https://github.com/upx/upx/releases",
 	Xh:            "https://github.com/ducaale/xh/releases",
+	Yj:            "https://github.com/sclevine/yj/releases",
 }
diff --git a/tools/asset.go b/tools/asset.go
index 460a1c8..86946e0 100644
--- a/tools/asset.go
+++ b/tools/asset.go
@@ -48,3 +48,12 @@ func (t *Tool) AssetXh() {
 	t.Asset.Name = baseName + ".tar.gz"
 	t.Asset.WithinArchive = path.Join(baseName, t.Name)
 }
+
+func (t *Tool) AssetYj() {
+	t.Asset.IsBinary = true
+	t.Asset.Name = fmt.Sprintf("yj-%v", t.OS)
+
+	if t.Arch != "" {
+		t.Asset.Name += fmt.Sprintf("-%v", t.Arch)
+	}
+}
diff --git a/tools/asset_test.go b/tools/asset_test.go
index c9aff89..61a04ad 100644
--- a/tools/asset_test.go
+++ b/tools/asset_test.go
@@ -61,6 +61,12 @@ func (s *AssetTestSuite) TestDestination() {
 			},
 			dest: "/usr/local/bin/xh",
 		},
+		{
+			tool: &Tool{
+				Name: Yj,
+			},
+			dest: "/usr/local/bin/yj",
+		},
 	}
 
 	for _, tt := range table {
@@ -148,6 +154,15 @@ func (s *AssetTestSuite) TestIsBinary() {
 			os:     "linux",
 			binary: false,
 		},
+		{
+			tool: &Tool{
+				Name:    Yj,
+				Version: "v5.0.0",
+			},
+			arch:   "amd64",
+			os:     "linux",
+			binary: true,
+		},
 	}
 
 	for _, tt := range table {
@@ -227,6 +242,24 @@ func (s *AssetTestSuite) TestName() {
 			os:   "linux",
 			name: "xh-v0.14.0-x86_64-unknown-linux-musl.tar.gz",
 		},
+		{
+			tool: &Tool{
+				Name:    Yj,
+				Version: "v5.0.0",
+			},
+			arch: "amd64",
+			os:   "linux",
+			name: "yj-linux",
+		},
+		{
+			tool: &Tool{
+				Name:    Yj,
+				Version: "v5.0.0",
+			},
+			arch: "arm",
+			os:   "linux",
+			name: "yj-linux-arm-v7",
+		},
 	}
 
 	for _, tt := range table {
diff --git a/tools/tools.go b/tools/tools.go
index 3ff4ccf..911858d 100644
--- a/tools/tools.go
+++ b/tools/tools.go
@@ -21,6 +21,7 @@ const (
 	K9s           = "k9s"
 	UPX           = "upx"
 	Xh            = "xh"
+	Yj            = "yj"
 )
 
 type Asset struct {
@@ -145,6 +146,8 @@ func (t *Tool) SetAsset() error {
 		t.AssetUPX()
 	case Xh:
 		t.AssetXh()
+	case Yj:
+		t.AssetYj()
 	}
 
 	if t.Asset.Name == "" {
@@ -155,10 +158,11 @@ func (t *Tool) SetAsset() error {
 }
 
 func (t *Tool) SetRuntime(arch string, os string) error {
-	t.Arch = tables.Arch[t.Name][os][arch]
-	t.OS = tables.OS[t.Name][os][arch]
+	var archOk, osOk bool
+	t.Arch, archOk = tables.Arch[t.Name][os][arch]
+	t.OS, osOk = tables.OS[t.Name][os][arch]
 
-	if t.Arch == "" || t.OS == "" {
+	if !archOk || !osOk {
 		return fmt.Errorf("no candidate for %v on %v/%v", t.Name, os, arch)
 	}