diff --git a/build.gradle b/build.gradle
index 7cd5ffdc..1cab0c52 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,6 +30,10 @@ dependencies {
     //S3 관련 의존성 부여
     implementation 'org.springframework.cloud:spring-cloud-starter-aws:2.2.6.RELEASE'
 
+    //webp 변환 라이브러리
+    implementation "com.sksamuel.scrimage:scrimage-core:4.0.32"
+    implementation "com.sksamuel.scrimage:scrimage-webp:4.0.32"
+
     implementation group: 'org.redisson', name: 'redisson-spring-boot-starter', version: '3.32.0'
 
     implementation 'io.jsonwebtoken:jjwt:0.9.1'
diff --git a/src/main/java/org/cotato/csquiz/common/error/ErrorCode.java b/src/main/java/org/cotato/csquiz/common/error/ErrorCode.java
index 839a257f..7d3a27b6 100644
--- a/src/main/java/org/cotato/csquiz/common/error/ErrorCode.java
+++ b/src/main/java/org/cotato/csquiz/common/error/ErrorCode.java
@@ -93,6 +93,7 @@ public enum ErrorCode {
     SCORER_LOCK_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "S-006", "득점자 락 획득 과정에서 에러 발생"),
     IMAGE_CONVERT_FAIL(HttpStatus.INTERNAL_SERVER_ERROR, "S-007", "로컬 이미지 변환에 실패했습니다"),
     SSE_SEND_FAIL(HttpStatus.INTERNAL_SERVER_ERROR, "S-008", "서버 이벤트 전송간 오류 발생"),
+    WEBP_CONVERT_FAIL(HttpStatus.INTERNAL_SERVER_ERROR, "S-009", "webp 변환에 실패했습니다")
     ;
 
     private final HttpStatus httpStatus;
diff --git a/src/main/java/org/cotato/csquiz/common/s3/S3Uploader.java b/src/main/java/org/cotato/csquiz/common/s3/S3Uploader.java
index 117f94f7..75db8840 100644
--- a/src/main/java/org/cotato/csquiz/common/s3/S3Uploader.java
+++ b/src/main/java/org/cotato/csquiz/common/s3/S3Uploader.java
@@ -1,6 +1,6 @@
 package org.cotato.csquiz.common.s3;
 
-import static org.cotato.csquiz.common.util.FileUtil.extractFileExtension;
+import static org.cotato.csquiz.common.util.FileUtil.convert;
 import static org.cotato.csquiz.common.util.FileUtil.isImageFileExtension;
 
 import com.amazonaws.services.s3.AmazonS3Client;
@@ -8,9 +8,7 @@
 import com.amazonaws.services.s3.model.ObjectMetadata;
 import com.amazonaws.services.s3.model.PutObjectRequest;
 import org.cotato.csquiz.common.entity.S3Info;
-import org.cotato.csquiz.common.error.ErrorCode;
 import org.cotato.csquiz.common.error.exception.ImageException;
-import java.util.UUID;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -18,8 +16,6 @@
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
 
 @Slf4j
 @RequiredArgsConstructor
@@ -36,13 +32,17 @@ public S3Info uploadFiles(MultipartFile multipartFile, String folderName) throws
         log.info("{} 사진 업로드", multipartFile.getOriginalFilename());
         File localUploadFile = convert(multipartFile);
 
-        String fileName = folderName + "/" + localUploadFile.getName();
-        String uploadUrl = putS3(localUploadFile, fileName);
-        localUploadFile.delete();
+        return uploadFiles(localUploadFile, folderName);
+    }
+
+    public S3Info uploadFiles(File file, String folderName) {
+        String fileName = folderName + "/" + file.getName();
+        String uploadUrl = putS3(file, fileName);
+        file.delete();
 
         return S3Info.builder()
                 .folderName(folderName)
-                .fileName(localUploadFile.getName())
+                .fileName(file.getName())
                 .url(uploadUrl)
                 .build();
     }
@@ -74,19 +74,4 @@ private boolean isImageFile(File file) {
 
         return isImageFileExtension(extension);
     }
-
-    private File convert(MultipartFile file) throws ImageException {
-        String fileExtension = extractFileExtension(file);
-        File convertFile = new File(System.getProperty("user.dir") + "/" + UUID.randomUUID() + "." + fileExtension);
-
-        try {
-            FileOutputStream fos = new FileOutputStream(convertFile);
-            fos.write(file.getBytes());
-            fos.close();
-
-            return convertFile;
-        } catch (IOException e) {
-            throw new ImageException(ErrorCode.IMAGE_CONVERT_FAIL);
-        }
-    }
 }
diff --git a/src/main/java/org/cotato/csquiz/common/util/FileUtil.java b/src/main/java/org/cotato/csquiz/common/util/FileUtil.java
index efed8113..40267f1f 100644
--- a/src/main/java/org/cotato/csquiz/common/util/FileUtil.java
+++ b/src/main/java/org/cotato/csquiz/common/util/FileUtil.java
@@ -1,6 +1,12 @@
 package org.cotato.csquiz.common.util;
 
+import com.sksamuel.scrimage.ImmutableImage;
+import com.sksamuel.scrimage.webp.WebpWriter;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.util.List;
+import java.util.UUID;
 import org.cotato.csquiz.common.error.ErrorCode;
 import org.cotato.csquiz.common.error.exception.ImageException;
 import org.springframework.web.multipart.MultipartFile;
@@ -21,4 +27,34 @@ public static String extractFileExtension(MultipartFile file) throws ImageExcept
     public static boolean isImageFileExtension(String fileExtension) {
         return IMAGE_FILE_EXTENSIONS.contains(fileExtension.toLowerCase());
     }
+
+    public static File convert(MultipartFile file) throws ImageException {
+        String fileExtension = extractFileExtension(file);
+        File convertFile = new File(System.getProperty("user.dir") + "/" + UUID.randomUUID() + "." + fileExtension);
+
+        try {
+            FileOutputStream fos = new FileOutputStream(convertFile);
+            fos.write(file.getBytes());
+            fos.close();
+
+            return convertFile;
+        } catch (IOException e) {
+            throw new ImageException(ErrorCode.IMAGE_CONVERT_FAIL);
+        }
+    }
+
+    public static File convertToWebp(File originalFile) throws ImageException {
+        try {
+            String fileNameWithoutExtension = originalFile.getName().replaceFirst("[.][^.]+$", "");
+
+            File webpFile = ImmutableImage.loader()
+                    .fromFile(originalFile)
+                    .output(WebpWriter.DEFAULT, new File(fileNameWithoutExtension + ".webp"));
+
+            originalFile.delete();
+            return webpFile;
+        } catch (IOException e) {
+            throw new ImageException(ErrorCode.WEBP_CONVERT_FAIL);
+        }
+    }
 }
diff --git a/src/main/java/org/cotato/csquiz/domain/generation/service/ProjectImageService.java b/src/main/java/org/cotato/csquiz/domain/generation/service/ProjectImageService.java
index 2921671c..622f6683 100644
--- a/src/main/java/org/cotato/csquiz/domain/generation/service/ProjectImageService.java
+++ b/src/main/java/org/cotato/csquiz/domain/generation/service/ProjectImageService.java
@@ -1,5 +1,8 @@
 package org.cotato.csquiz.domain.generation.service;
 
+import static org.cotato.csquiz.common.util.FileUtil.*;
+
+import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
@@ -21,14 +24,16 @@ public class ProjectImageService {
     private final ProjectImageRepository projectImageRepository;
 
     @Transactional
-    public void createProjectImage(Long projectId, MultipartFile logoImage, MultipartFile thumbNameImage)
+    public void createProjectImage(Long projectId, MultipartFile logoImage, MultipartFile thumbNailImage)
             throws ImageException {
         List<ProjectImage> newImages = new ArrayList<>();
 
-        S3Info logoImageInfo = s3Uploader.uploadFiles(logoImage, PROJECT_IMAGE);
+        File webpLogoImage = convertToWebp(convert(logoImage));
+        S3Info logoImageInfo = s3Uploader.uploadFiles(webpLogoImage, PROJECT_IMAGE);
         newImages.add(ProjectImage.logoImage(logoImageInfo, projectId));
 
-        S3Info thumbNailInfo = s3Uploader.uploadFiles(thumbNameImage, PROJECT_IMAGE);
+        File webpThumbNailImage = convertToWebp(convert(thumbNailImage));
+        S3Info thumbNailInfo = s3Uploader.uploadFiles(webpThumbNailImage, PROJECT_IMAGE);
         newImages.add(ProjectImage.thumbNailImage(thumbNailInfo, projectId));
 
         projectImageRepository.saveAll(newImages);