diff --git a/.github/.cspell/project-dictionary.txt b/.github/.cspell/project-dictionary.txt
index 8333b463..7948bfd9 100644
--- a/.github/.cspell/project-dictionary.txt
+++ b/.github/.cspell/project-dictionary.txt
@@ -10,6 +10,7 @@ dprint
 enablerepo
 endgroup
 epel
+espup
 grcov
 linkcheck
 mdbook
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc5f68ee..93f349d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Support `espup`. ([#456](https://github.com/taiki-e/install-action/pull/456))
+
 - Improve support for SUSE/Arch based containers/self-hosted runners.
 
 ## [2.32.20] - 2024-04-17
diff --git a/README.md b/README.md
index 3176a0e8..f7d7ae6c 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,7 @@ https://spdx.org/licenses
 | [**cargo-valgrind**](https://github.com/jfrimmel/cargo-valgrind) | `$CARGO_HOME/bin` | [GitHub Release](https://github.com/jfrimmel/cargo-valgrind/releases) | Linux, macOS, Windows | [MIT](https://github.com/jfrimmel/cargo-valgrind/blob/HEAD/LICENSE-MIT) or [Apache-2.0](https://github.com/jfrimmel/cargo-valgrind/blob/HEAD/LICENSE-APACHE) |
 | [**cross**](https://github.com/cross-rs/cross) | `$CARGO_HOME/bin` | [GitHub Releases](https://github.com/cross-rs/cross/releases) | Linux, macOS, Windows | [Apache-2.0](https://github.com/cross-rs/cross/blob/HEAD/LICENSE-APACHE) OR [MIT](https://github.com/cross-rs/cross/blob/HEAD/LICENSE-MIT) |
 | [**dprint**](https://github.com/dprint/dprint) | `$CARGO_HOME/bin` | [GitHub Releases](https://github.com/dprint/dprint/releases) | Linux, macOS, Windows | [MIT](https://github.com/dprint/dprint/blob/HEAD/LICENSE) |
+| [**espup**](https://github.com/esp-rs/espup) | `$CARGO_HOME/bin` | [GitHub Release](https://github.com/esp-rs/espup/releases) | Linux, macOS, Windows | [Apache-2.0](https://github.com/esp-rs/espup/blob/HEAD/LICENSE-APACHE) OR [MIT](https://github.com/esp-rs/espup/blob/HEAD/LICENSE-MIT) |
 | [**git-cliff**](https://github.com/orhun/git-cliff) | `$CARGO_HOME/bin` | [GitHub Releases](https://github.com/orhun/git-cliff/releases) | Linux, macOS, Windows | [Apache-2.0](https://github.com/orhun/git-cliff/blob/HEAD/LICENSE-APACHE) OR [MIT](https://github.com/orhun/git-cliff/blob/HEAD/LICENSE-MIT) |
 | [**grcov**](https://github.com/mozilla/grcov) | `$CARGO_HOME/bin` | [GitHub Releases](https://github.com/mozilla/grcov/releases) | Linux, macOS, Windows | [MPL-2.0](https://github.com/mozilla/grcov/blob/HEAD/LICENSE-MPL-2.0) |
 | [**hyperfine**](https://github.com/sharkdp/hyperfine) | `$CARGO_HOME/bin` | [GitHub Releases](https://github.com/sharkdp/hyperfine/releases) | Linux, macOS, Windows | [MIT](https://github.com/sharkdp/hyperfine/blob/HEAD/LICENSE-MIT) or [Apache-2.0](https://github.com/sharkdp/hyperfine/blob/HEAD/LICENSE-APACHE) |
diff --git a/manifests/espup.json b/manifests/espup.json
new file mode 100644
index 00000000..e01fb004
--- /dev/null
+++ b/manifests/espup.json
@@ -0,0 +1,464 @@
+{
+  "rust_crate": "espup",
+  "template": {
+    "x86_64_linux_gnu": {
+      "url": "https://github.com/esp-rs/espup/releases/download/v${version}/espup-x86_64-unknown-linux-gnu.zip"
+    },
+    "x86_64_macos": {
+      "url": "https://github.com/esp-rs/espup/releases/download/v${version}/espup-x86_64-apple-darwin.zip"
+    },
+    "x86_64_windows": {
+      "url": "https://github.com/esp-rs/espup/releases/download/v${version}/espup-x86_64-pc-windows-msvc.zip"
+    },
+    "aarch64_linux_gnu": {
+      "url": "https://github.com/esp-rs/espup/releases/download/v${version}/espup-aarch64-unknown-linux-gnu.zip"
+    },
+    "aarch64_macos": {
+      "url": "https://github.com/esp-rs/espup/releases/download/v${version}/espup-aarch64-apple-darwin.zip"
+    }
+  },
+  "latest": {
+    "version": "0.11.0"
+  },
+  "0.11": {
+    "version": "0.11.0"
+  },
+  "0.11.0": {
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+    },
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+    },
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+  },
+  "0.10": {
+    "version": "0.10.0"
+  },
+  "0.10.0": {
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+    }
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+  "0.9": {
+    "version": "0.9.0"
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+    }
+  },
+  "0.2.4": {
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+    },
+    "x86_64_macos": {
+      "checksum": "24bfbb5602ed66eee2af666fbfc52c3965e05454222d9fdcefe478508d52a7a5"
+    },
+    "x86_64_windows": {
+      "checksum": "ea689fd7a48b9002a22dd56587252b419f2e230f268c2f1eaa0f39a5d460b3b7"
+    },
+    "aarch64_linux_gnu": {
+      "checksum": "1dcaeb3e813921f35bde24b09913a7286e23586b5e35961989ae4fa8b6aee684"
+    },
+    "aarch64_macos": {
+      "checksum": "daf0fd4a3eaa5b338fbbd5d49c117a17fe45cae6600eec992fe7100458926e26"
+    }
+  },
+  "0.2.3": {
+    "x86_64_linux_gnu": {
+      "checksum": "7b864a48e661fb974375bb984dd8078c53dc049bd63e9d7841bfaa474bfee7d3"
+    },
+    "x86_64_macos": {
+      "checksum": "4f3758accf1e5449646a7c0e3ce0f3931d4c2989cb9e3eb59f429949cb593db6"
+    },
+    "x86_64_windows": {
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+    },
+    "aarch64_linux_gnu": {
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+    },
+    "aarch64_macos": {
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+    }
+  },
+  "0.2.2": {
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+      "checksum": "5adda795d6e0c89a2af8578fda0f483d62c714ba6de309cd85f7af82f9a66f23"
+    },
+    "x86_64_macos": {
+      "checksum": "9c037538847171eb49a7ebf487b5dec886a6c75958f51be7a32c975697caaaca"
+    },
+    "x86_64_windows": {
+      "checksum": "b9af83c899681d4590110d0fb552eb73e711e8ad1ff84620e88f14a3502fed5b"
+    },
+    "aarch64_linux_gnu": {
+      "checksum": "ecbaf29288776317591b85ce7114153122351d17ee73a6b6f1a50d7af037f8de"
+    },
+    "aarch64_macos": {
+      "checksum": "bcb35cdb27cd9658b82e479edd74e7f5245a79e59e60def3bdebb4993f9e58d8"
+    }
+  },
+  "0.2.1": {
+    "x86_64_linux_gnu": {
+      "checksum": "ac61ef0e0118650c8cbb9c9288cabf3546bb80a799d6c6bad238003b4de3df49"
+    },
+    "x86_64_macos": {
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+    },
+    "x86_64_windows": {
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+    },
+    "aarch64_linux_gnu": {
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+    },
+    "aarch64_macos": {
+      "checksum": "b6f79fcfc03adffbb4e8fd4ffe6d00a40953d9889b6ffe5e99a5ddbc6c121940"
+    }
+  },
+  "0.2.0": {
+    "x86_64_linux_gnu": {
+      "checksum": "5561c5eca9e4670a6aac1adfac694751abdf0d6f03f93949470cf75a38b67fac"
+    },
+    "x86_64_macos": {
+      "checksum": "039971e043b91fc41387ab8d3fd7b89af7662602a311e46099327aac0c492940"
+    },
+    "x86_64_windows": {
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+    },
+    "aarch64_linux_gnu": {
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+    },
+    "aarch64_macos": {
+      "checksum": "451b224c090cc1a8d04cbf6c63fd2d21e4e0d5dd918c7dd92764d22077e8d1a6"
+    }
+  },
+  "0.1": {
+    "version": "0.1.0"
+  },
+  "0.1.0": {
+    "x86_64_linux_gnu": {
+      "checksum": "c450fd34ee089e9ad9ef2aef773f49835b2dbeef2783e819604f47194b5f646c"
+    },
+    "x86_64_macos": {
+      "checksum": "e9deb64f10a51d37f00ddfe86ad8c73469d250e327ecfd8bdb5a82823adcd64a"
+    },
+    "x86_64_windows": {
+      "checksum": "5b5de20515fc0dfdeb68abcefccd9abea7525500f52dfca149a3438b6f7c46d6"
+    },
+    "aarch64_linux_gnu": {
+      "checksum": "31df56e1460e34acdc3699f14a1b56565ca83472fde58f9760a58e16e67c2ce0"
+    },
+    "aarch64_macos": {
+      "checksum": "56b26580269a7c4d7a5591eb0fdaa34d20e55d5ca5c55cb264bd683867954a15"
+    }
+  }
+}
diff --git a/tools/ci/tool-list.sh b/tools/ci/tool-list.sh
index aa4155a5..c14b719c 100755
--- a/tools/ci/tool-list.sh
+++ b/tools/ci/tool-list.sh
@@ -13,6 +13,7 @@ glibc_pre_2_34_incompat=(
 glibc_pre_2_31_incompat=(
     "${glibc_pre_2_34_incompat[@]}"
     cargo-sort
+    espup
     zola
 )
 glibc_pre_2_27_incompat=(
diff --git a/tools/codegen/base/espup.json b/tools/codegen/base/espup.json
new file mode 100644
index 00000000..9d62f696
--- /dev/null
+++ b/tools/codegen/base/espup.json
@@ -0,0 +1,13 @@
+{
+  "repository": "https://github.com/esp-rs/espup",
+  "tag_prefix": "v",
+  "rust_crate": "${package}",
+  "asset_name": "${package}-${rust_target}.zip",
+  "platform": {
+    "x86_64_linux_gnu": {},
+    "x86_64_macos": {},
+    "x86_64_windows": {},
+    "aarch64_linux_gnu": {},
+    "aarch64_macos": {}
+  }
+}