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자주 묻는 질문

파일 메타데이터, EXIF 정보 및 보안에 관한 핵심 질문과 답변.

#01메타데이터란 무엇이며 왜 삭제해야 하나요?
메타데이터는 카메라와 프로그램이 파일 속에 자동으로 남기는 "보이지 않는 부가 정보"입니다. 사진에는 집 주소 GPS 좌표와 카메라 시리얼 번호가, 문서에는 실명과 수정 히스토리가 기록되어 있어 개인정보 유출을 초래할 수 있습니다.
Privacy & Security
#02Metadata Viewer 에 파일이 업로드되나요?
아닙니다! 기존 웹사이트와 달리 Metadata Viewer 는 사용자 브라우저 내부에서만 자바스크립트를 실행합니다. 파일은 기기 밖으로 절대 나가지 않습니다.
Privacy & Security
#03메타데이터를 삭제하면 사진이나 비디오 화질이 떨어지나요?
떨어지지 않습니다. JPEG 등의 형식에서는 화소 픽셀을 다시 압축하지 않고 바이트 단위에서 헤더만 깔끔하게 제거하므로 화질이 100% 동일하게 유지됩니다.
Privacy & Security
#04카메라 촬영 세팅(조리개, ISO 등)은 남기고 GPS만 지울 수 있나요?
네, 가능합니다! 사진 작품으로서의 카메라 설정값은 그대로 유지하고 위험한 GPS 위치 정보만 선택적으로 삭제할 수 있습니다.
Privacy & Security
#05이 서비스는 정말로 완전 무료인가요?
네, 회원가입이나 유료 플랜, 숨겨진 파일 용량 과금 없이 100% 완전 무료로 평생 이용하실 수 있습니다.
Tools & Comparison
#06How to view exif metadata online viewer ?
To view EXIF metadata using an online viewer, open Free Metadata Viewer in any modern web browser. Simply drag and drop your image file (JPEG, PNG, HEIC, TIFF, WebP, or RAW) into the upload area or click to select it from your device. The online viewer will instantly parse the embedded EXIF tags—including camera make and model, shutter speed, aperture (f-number), ISO sensitivity, focal length, capture timestamp, and GPS coordinates—directly inside your browser without uploading your files to any external server.
EXIF & Camera
#07How to use exif viewer ?
Using an online EXIF viewer is simple and takes just three steps:
  1. Select your photo: Open the EXIF Viewer and drag your photo into the inspection box or click 'Choose File'.
  2. Inspect metadata categories: Browse through organized sections including Camera Hardware (make, model, lens specifications), Exposure Settings (aperture, shutter speed, ISO, white balance), Timestamps (creation and digitized dates), and Geolocation.
  3. View map or export: Check the photo's GPS coordinates on an interactive satellite map, export the complete tag report as JSON, or switch to the EXIF Remover if you wish to sanitize sensitive tags before sharing.
EXIF & Camera
#08What are the best free online exif viewer tool ?
The best free online EXIF viewer tools prioritize user privacy, format compatibility, and thorough metadata parsing without file size limits:
  • FreeMetadataViewer.com (Top Pick): 100% private and runs entirely in your browser using client-side Web APIs. Your images are never transferred over the network. Supports JPEG, PNG, HEIC, TIFF, WebP, RAW, PDF, and video formats with interactive GPS maps and before-and-after diff verification.
  • ExifTool by Phil Harvey: The definitive open-source command-line utility for power users and developers needing deep tag inspection.
  • Browser-Based Image Inspectors: Built-in browser developer tools or lightweight browser extensions for inspecting web-hosted photos on the fly.
Tools & Comparison
#09What is exif viewer ?
An EXIF viewer is a specialized software application or online utility designed to read, decode, and display Exchangeable Image File Format (EXIF) metadata embedded inside digital photos. When a digital camera, smartphone (iPhone, Samsung, Pixel), or drone captures an image, it embeds a wealth of technical and contextual parameters into the file header. An EXIF viewer extracts this hidden information and presents camera model, lens hardware, exposure settings (shutter speed, aperture, ISO), timestamps, and GPS coordinates in a human-readable format.
EXIF & Camera
#10How to use exif viewer in chrome ?
You can use an EXIF viewer in Google Chrome using two convenient methods:
  1. Online Web App (No installation needed): Open Chrome, navigate to FreeMetadataViewer.com/exif-viewer, and drag and drop any image directly into the Chrome tab. Chrome's modern JavaScript engine will decode the EXIF parameters locally in memory without uploading the file.
  2. Chrome Web Extension: Install an EXIF viewer extension from the Chrome Web Store. Once installed, right-click on any image while browsing the web and select 'View EXIF' or 'Show Image Info' from the context menu.
Tools & Comparison
#11How to view photo metadata ?
You can view photo metadata natively on any operating system or online across all devices:
  • Online (Universal): Drop your photo into FreeMetadataViewer.com for complete EXIF, IPTC, and XMP metadata on any desktop or mobile browser.
  • Windows: Right-click the photo file, click Properties, and open the Details tab.
  • Mac: Open the photo in Preview, press Cmd + I, and select the 'Exif' or 'GPS' tab.
  • iPhone: Open the photo in the Photos app and swipe up or tap the (i) info button.
  • Android: Open the picture in Google Photos or the native gallery, and swipe up or tap the three dots (⋮) menu.
Photo & Image Metadata
#12How to view image metadata ?
To view image metadata across different formats (including JPEG, PNG, HEIC, WebP, GIF, TIFF, and SVG), open Free Metadata Viewer in your browser and upload the image. The tool reads all embedded metadata chunks—such as EXIF camera profiles, IPTC editorial copyright details, XMP editing records (from Photoshop or Lightroom), ICC color spaces, and even AI generation parameters (prompts, negative prompts, and seeds from Stable Diffusion or Midjourney) stored in PNG text chunks.
Photo & Image Metadata
#13How to view picture metadata ?
To view picture metadata, drag your picture into an online viewer like FreeMetadataViewer.com or inspect it using your operating system's built-in file manager. In Windows, right-click the picture file, select 'Properties', and click the 'Details' tab to view resolution, camera model, date taken, and color representation. On macOS, open the picture in Preview and press Cmd + I (Show Inspector). An online metadata viewer provides deeper technical details like lens model, focal length, and GPS coordinates on an interactive map.
Photo & Image Metadata
#14How to view pdf metadata ?
To view PDF metadata:
  • Online: Drag and drop your PDF into Free Metadata Viewer to inspect document Title, Author, Subject, Keywords, Creator tool, Producer software (e.g., Acrobat Distiller, Quartz), Creation Date, Modification Date, and PDF specification version.
  • Adobe Acrobat / Reader: Open the PDF, click File > Properties (or press Ctrl + D / Cmd + D), and view the Description tab.
  • Web Browser: Open the PDF in Google Chrome or Microsoft Edge, click the document menu, and select Document Properties.
PDF & Documents
#15How to view metadata ?
To view metadata for any file type (images, documents, videos, and audio):
  1. Open FreeMetadataViewer.com in your web browser.
  2. Drag and drop any supported file—including photos (JPG, PNG, HEIC), videos (MP4, MOV, MKV), audio (MP3, WAV, FLAC), or documents (PDF, DOCX, XLSX).
  3. The file-aware analyzer automatically detects the file container and displays all available metadata tags—including ID3 audio tags, video codec parameters, EXIF camera profiles, author details, and embedded GPS locations.
General Metadata
#16How to view exif data on mac ?
There are several quick ways to view EXIF data on macOS:
  1. Preview App: Double-click the photo to open it in Preview. Press Command + I (or go to Tools > Show Inspector), then click the Exif tab or GPS tab.
  2. Apple Photos: Open the Photos app, select the picture, and click the Info button (i) in the toolbar or press Command + I.
  3. Finder: Select the file, press Command + I to open 'Get Info', and expand the 'More Info' section to view camera make, focal length, and aperture.
  4. Online: Visit FreeMetadataViewer.com in Safari or Chrome for a full EXIF breakdown with an interactive satellite GPS map.
Device Guides
#17How to view exif data on iphone ?
On an iPhone running iOS 15 or later:
  1. Open the Photos app.
  2. Tap the photo you want to examine.
  3. Swipe up on the photo or tap the Info button (the (i) icon at the bottom of the screen).
  4. You will see the date and time, camera model (e.g., iPhone 15 Pro Max 24mm f/1.78), shutter speed, ISO, aperture, megapixel count, file size, and an interactive Apple Maps view showing the exact GPS location where the photo was taken.
Device Guides
#18How to view exif data on android ?
To view EXIF data on an Android smartphone:
  1. Open the Google Photos app (or your device's default Gallery app).
  2. Tap on the image to view it full screen.
  3. Swipe up on the screen or tap the three dots (⋮) menu in the top-right corner.
  4. The details panel will show the capture timestamp, camera model, lens specifications, exposure parameters (ISO, shutter speed, aperture), image resolution, and a Google Maps card displaying the photo's GPS location if geotagging was enabled.
Device Guides
#19How to view exif data of a photo ?
To view the EXIF data of a photo, drag and drop the image into Free Metadata Viewer's EXIF tool. The inspector will instantly decode the binary EXIF tags embedded in the header of the JPEG, TIFF, or HEIC file. You can inspect the camera make and model, lens details, shutter speed, f-stop aperture, ISO, exposure compensation, flash status, metering mode, white balance, original capture date, and GPS coordinates.
EXIF & Camera
#20How to view exif ?
You can view EXIF data in several ways depending on your preferred platform:
  • Web Browser (Fastest): Use FreeMetadataViewer.com for instant, zero-install, private EXIF analysis with interactive GPS maps.
  • Desktop: Use Windows File Explorer (Properties > Details), Mac Preview (Cmd + I > Inspector), or open-source software like ExifTool and Digikam.
  • Smartphone: Swipe up on any picture in Apple Photos (iPhone) or Google Photos (Android) to inspect camera settings and location.
  • Command Line: Run exiftool filename.jpg in your terminal for complete technical tag extraction.
General Metadata