diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6bb7388dfd..42198b64b8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -56,10 +56,9 @@ jobs:
             package_name: voicevox
             compressed_artifact_name: voicevox-linux-nvidia
             app_asar_dir: prepackage/resources
-            installer_artifact_name: linux-nvidia-appimage
+            installer_artifact_name: voicevox-linux-nvidia-appimage
             linux_artifact_name: "VOICEVOX.${ext}"
             linux_executable_name: voicevox
-            linux_appimage_7z_name: VOICEVOX.AppImage
             os: ubuntu-22.04
           # Linux CPU (x64)
           - artifact_name: linux-cpu-x64-prepackage
@@ -68,10 +67,9 @@ jobs:
             package_name: voicevox-cpu
             compressed_artifact_name: voicevox-linux-cpu-x64
             app_asar_dir: prepackage/resources
-            installer_artifact_name: linux-cpu-x64-appimage
+            installer_artifact_name: voicevox-linux-cpu-x64-appimage
             linux_artifact_name: "VOICEVOX.${version}-x64.${ext}"
             linux_executable_name: voicevox
-            linux_appimage_7z_name: VOICEVOX-CPU-X64.AppImage
             os: ubuntu-22.04
           # Linux CPU (arm64)
           - artifact_name: linux-cpu-arm64-prepackage
@@ -80,10 +78,9 @@ jobs:
             package_name: voicevox-cpu
             compressed_artifact_name: voicevox-linux-cpu-arm64
             app_asar_dir: prepackage/resources
-            installer_artifact_name: linux-cpu-arm64-appimage
+            installer_artifact_name: voicevox-linux-cpu-arm64-appimage
             linux_artifact_name: "VOICEVOX.${version}-arm64.${ext}"
             linux_executable_name: voicevox
-            linux_appimage_7z_name: VOICEVOX-CPU-ARM64.AppImage
             os: ubuntu-22.04-arm
           # Windows CUDA
           - artifact_name: windows-nvidia-prepackage
@@ -452,29 +449,24 @@ jobs:
           cd dist_electron/
 
           for appImageFile in *.AppImage; do
-            echo "Splitting ${appImageFile}"
+            echo "Splitting ${appImageFile} to .AppImage.{1,2,...}"
 
-            # Split to MyArtifact.AppImage.7z.001, MyArtifact.AppImage.7z.002, ...
-            # Use compression level 0 since AppImage is already compressed
-            # .7z is needed for installer_linux.sh yet
-            7z -mx=0 -v1900m a "${{ matrix.linux_appimage_7z_name }}.7z" "${appImageFile}"
+            split --verbose -d -b 1900m "${appImageFile}" "${{ matrix.installer_artifact_name }}.AppImage." |wc -l > "${{ matrix.installer_artifact_name }}"_split
 
-            # Output split archive name<TAB>size<TAB>hash list to myartifact.7z.txt
-            ls "${{ matrix.linux_appimage_7z_name }}.7z".* > archives_name.txt
-            stat --printf="%s\n" "${{ matrix.linux_appimage_7z_name }}.7z".* > archives_size.txt
-            md5sum "${{ matrix.linux_appimage_7z_name }}.7z".* | awk '{print $1}' | tr a-z A-Z > archives_hash.txt
-
-            paste -d '\t' archives_name.txt archives_size.txt archives_hash.txt > archives.txt
-
-            mv archives.txt "${{ matrix.installer_artifact_name }}.7z.txt"
+            # Calc checksum of original file by same func with GitHub
+            sha256sum ${appImageFile} | cut -d ' ' -f 1 > "${{ matrix.installer_artifact_name }}.AppImage.sha256sum"
+            # Save runner's disk space and make release pattern simpler
+            rm ${appImageFile}
           done
 
       - name: Create Linux installer
         if: endsWith(matrix.installer_artifact_name, '-appimage')
         run: |
+          splitnum=$(cat dist_electron/"${{ matrix.installer_artifact_name }}"_split)
           sed \
             -e 's/^NAME=@@PLACEHOLDER@@ # placeholder for CI$/NAME="${{ matrix.installer_artifact_name }}"/' \
             -e 's/^VERSION=@@PLACEHOLDER@@ # placeholder for CI$/VERSION="${{ env.VOICEVOX_EDITOR_VERSION }}"/' \
+            -e "s/^SPLIT=@@SPLIT@@ # placeholder for CI$/SPLIT=${splitnum}/" \
             build/linux/installer_linux.template.sh > VOICEVOX.${{ matrix.installer_artifact_name }}.${{ env.VOICEVOX_EDITOR_VERSION }}.sh
 
           # Check that placeholders were replaced
@@ -486,7 +478,7 @@ jobs:
         with:
           name: ${{ matrix.installer_artifact_name }}-release
           path: |-
-            dist_electron/*.7z.*
+            dist_electron/*.AppImage*
             VOICEVOX.${{ matrix.installer_artifact_name }}.${{ env.VOICEVOX_EDITOR_VERSION }}.sh
 
       - name: Upload Linux AppImage split and installer to Release Assets
@@ -496,7 +488,7 @@ jobs:
           prerelease: ${{ github.event.inputs.prerelease }}
           tag_name: ${{ env.VOICEVOX_EDITOR_VERSION }}
           files: |-
-            dist_electron/*.7z.*
+            dist_electron/*.AppImage*
             VOICEVOX.${{ matrix.installer_artifact_name }}.${{ env.VOICEVOX_EDITOR_VERSION }}.sh
           target_commitish: ${{ github.sha }}
 
diff --git a/build/linux/installer_linux.template.sh b/build/linux/installer_linux.template.sh
index eacced6d2b..9ea39adc4d 100755
--- a/build/linux/installer_linux.template.sh
+++ b/build/linux/installer_linux.template.sh
@@ -27,6 +27,7 @@ BANNER
 
 NAME=@@PLACEHOLDER@@ # placeholder for CI
 VERSION=@@PLACEHOLDER@@ # placeholder for CI
+SPLIT=@@SPLIT@@ # placeholder for CI
 REPO_URL=${REPO_URL:-https://github.com/VOICEVOX/voicevox}
 
 # Install directory
@@ -78,162 +79,30 @@ Or
 EOS
 fi
 
-COMMAND_7Z=${COMMAND_7Z:-}
-if [ -n "${COMMAND_7Z}" ]; then
-    # use env var
-    :
-elif command -v 7z &> /dev/null; then
-    # Ubuntu/Debian p7zip-full
-    COMMAND_7Z=7z
-elif command -v 7zr &> /dev/null; then
-    # Ubuntu/Debian p7zip
-    COMMAND_7Z=7zr
-elif command -v 7za &> /dev/null; then
-    # CentOS/Fedora
-    COMMAND_7Z=7za
-elif command -v 7zz &> /dev/null; then
-    # Official 7zip
-    COMMAND_7Z=7zz
-else
-    cat << 'EOS' && exit 1
-[!] Command '7z', '7zr', '7za' or '7zz' not found
-
-Required to extract compressed files
-
-Ubuntu/Debian:
-    sudo apt install p7zip
-
-CentOS (Enable EPEL repository):
-    sudo dnf install epel-release && sudo dnf install p7zip
-Or
-    sudo yum install epel-release && sudo yum install p7zip
-
-Fedora:
-    sudo dnf install p7zip
-Or
-    sudo yum install p7zip
-
-Arch Linux:
-    sudo pacman -S 7zip
-EOS
-fi
-echo "[-] 7z command: ${COMMAND_7Z}"
-
 RELEASE_URL=${REPO_URL}/releases/download/${VERSION}
-ARCHIVE_LIST_URL=${RELEASE_URL}/${NAME}.7z.txt
 
 echo "[-] Install directory: ${APP_DIR}"
 mkdir -p "${APP_DIR}"
 
 cd "${APP_DIR}"
 
-# Download archive list
-if [ "$REUSE_LIST" != "1" ]; then
-    echo "[+] Downloading ${ARCHIVE_LIST_URL}..."
-    curl --fail -L -o "list.txt" "${ARCHIVE_LIST_URL}"
-fi
-
-echo
-echo "[+] Listing of split archives..."
-_readarray ARCHIVE_LIST < "list.txt"
-# filename<TAB>size<TAB>hash
-_readarray ARCHIVE_NAME_LIST < <(
-    for line in "${ARCHIVE_LIST[@]}"; do
-        echo "$line"
-    done | awk '$0!=""{print $1}'
-)
-_readarray ARCHIVE_SIZE_LIST < <(
-    for line in "${ARCHIVE_LIST[@]}"; do
-        echo "$line"
-    done | awk '$0!=""{print $2}'
-)
-_readarray ARCHIVE_HASH_LIST < <(
-    for line in "${ARCHIVE_LIST[@]}"; do
-        echo "$line"
-    done | awk '$0!=""{print $3}' |
-        tr '[:lower:]' '[:upper:]'
-)
-
-echo
-
-for index in "${!ARCHIVE_NAME_LIST[@]}"; do
-    echo "${index}." \
-        "${ARCHIVE_NAME_LIST[index]}" \
-        "${ARCHIVE_SIZE_LIST[index]}" \
-        "${ARCHIVE_HASH_LIST[index]}"
-done
-echo
-
-# Download archives
-for index in "${!ARCHIVE_LIST[@]}"; do
-    FILENAME=${ARCHIVE_NAME_LIST[index]}
-    SIZE=${ARCHIVE_SIZE_LIST[index]}
-    HASH=${ARCHIVE_HASH_LIST[index]}
-
-    URL=${RELEASE_URL}/${FILENAME}
-
-    echo "[+] Downloading ${URL}..."
-    if [ ! -f "${FILENAME}" ]; then
-        curl --fail -L -C - -o "${FILENAME}.tmp" "${URL}"
-        mv "${FILENAME}.tmp" "${FILENAME}"
-    fi
-
-    # File verification (size, md5 hash)
-    if [ "$SKIP_VERIFY" = "1" ]; then
-        echo "[-] File verification skipped"
-    else
-        if [ "$SIZE" != "x" ]; then
-            echo "[+] Verifying size == ${SIZE}..."
-            if stat --version &>/dev/null; then
-                DOWNLOADED_SIZE=$(stat --printf="%s" "${FILENAME}")
-            else
-                DOWNLOADED_SIZE=$(stat -f%z "${FILENAME}")
-            fi
-
-            if [ "$DOWNLOADED_SIZE" = "$SIZE" ]; then
-                echo "[-] Size OK"
-            else
-                cat << EOS && exit 1
-[!] Invalid size: ${DOWNLOADED_SIZE} != ${SIZE}
-
-Remove the corrupted file and restart installer!
-
-    rm $(realpath "${FILENAME}")
-
-EOS
-            fi
-        fi
-
-        if [ "$HASH" != "x" ]; then
-            echo "[+] Verifying hash == ${HASH}..."
-            DOWNLOADED_HASH=$(md5sum "${FILENAME}" | awk '$0=$1' | tr '[:lower:]' '[:upper:]')
-            if [ "$DOWNLOADED_HASH" = "$HASH" ]; then
-                echo "[-] Hash OK"
-            else
-                cat << EOS && exit 1
-[!] Invalid hash: ${DOWNLOADED_HASH} != ${HASH}
-
-Remove the corrupted file and restart installer!
 
-    rm $(realpath "${FILENAME}")
-
-EOS
-            fi
-        fi
-    fi
-done
 
-# Extract archives
-echo "[+] Extracting archive..."
-FIRST_ARCHIVE=${ARCHIVE_NAME_LIST[0]}
-"${COMMAND_7Z}" x "${FIRST_ARCHIVE}" -y
+# Download separated AppImages and verify it
+curl --fail -L -o sha ${REPO_URL}/releases/download/${VERSION}/${NAME}.AppImage.sha256sum
+# Download AppImage if missing or broken
+if [ "$(cat sha)" != "$(sha256sum ${NAME}.AppImage)" ];then
+    rm -f ${NAME}.AppImage
+    # Do not put duplicated large files on the disk
+    for s in $(seq 0 $(( ${SPLIT} - 1 )) );do
+        curl --fail -L ${REPO_URL}/releases/download/${VERSION}/${NAME}.AppImage.0${s} >> ${NAME}.AppImage
+    done
+fi
+[ $(cat sha) != $(sha256sum ${NAME}.AppImage) ] || (echo "Checksum mismatch. Please retry." ;exit 1)
 
 # Rename
 APPIMAGE="VOICEVOX.AppImage"
-EXTRACTED_APPIMAGE_NAME=$("${COMMAND_7Z}" l -slt -ba "${FIRST_ARCHIVE}" | grep 'Path = ' | head -n1 | sed 's/Path = \(.*\)/\1/')
-if [ "$EXTRACTED_APPIMAGE_NAME" != "$APPIMAGE" ]; then
-    mv "$EXTRACTED_APPIMAGE_NAME" "$APPIMAGE"
-fi
+mv -f ${NAME}.AppImage "$APPIMAGE"
 chmod +x "${APPIMAGE}"
 
 # Dump version