Free PNG Metadata Viewer Online - Analyze PNG Image Properties & EXIF Data
View and extract metadata from PNG images. Discover EXIF data, technical specifications, creation details, and hidden information in PNG files.
Comprehensive Metadata Analysis
Extract EXIF data, technical specs, creation details, and hidden information from PNG files.
Drop your PNG image here
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Supports PNG format only
Maximum file size: 10MB
Understanding PNG Metadata
• PNG metadata includes technical specifications, creation details, and optional EXIF data • Metadata helps verify image authenticity and origin • Some PNGs may contain hidden or edited metadata • Professional photographers use metadata for copyright protection
What is PNG Metadata? Understanding Image Properties & EXIF Data
PNG (Portable Network Graphics) metadata consists of various data points embedded within a PNG image file. This information provides details about the image's creation, technical specifications, and sometimes even the editing history. Unlike JPEG files that commonly store extensive EXIF data, PNG files have a more structured approach to metadata storage through "chunks".
Types of PNG Metadata
Technical Metadata
Dimensions, color type, bit depth, compression method, and filter type used in the PNG.
Creation Metadata
Creation date, modification date, author information, and software used to create the image.
EXIF Data
Camera settings, GPS coordinates, exposure information, and other photographic details.
PNG Chunks
Structural components like IHDR, PLTE, IDAT, IEND, and optional tEXt, zTXt, iTXt chunks.
Common PNG Metadata Fields
| Metadata Field | Description | Example Value |
|---|---|---|
| Image Dimensions | Width and height in pixels | 1920 × 1080 |
| Color Type | Color model used (RGB, grayscale, etc.) | RGB with Alpha |
| Bit Depth | Number of bits per sample | 8 bits |
| Compression Method | Compression algorithm used | Deflate/Inflate |
| Filter Method | Filter type applied before compression | Adaptive |
| Interlace Method | Interlacing technique used | Noninterlaced |
Why View PNG Metadata? Practical Applications & Use Cases
For Photographers & Designers
- Verify image authenticity and copyright information
- Check image dimensions and technical specifications
- Review color profiles and bit depth for print preparation
- Track image editing history and software used
For Web Developers & SEO Specialists
- Optimize images for web performance
- Add descriptive metadata for better SEO
- Ensure proper image compression settings
- Verify image dimensions match design requirements
For Digital Forensics & Security
- Investigate image origins and authenticity
- Detect manipulated or forged images
- Extract hidden or embedded information
- Analyze metadata for legal evidence
For Content Creators & Marketers
- Add copyright and attribution information
- Track image usage across platforms
- Ensure brand consistency in visual assets
- Add keywords and descriptions for better discoverability
Understanding PNG Chunks: The Building Blocks of PNG Metadata
PNG files are composed of "chunks" - structured data blocks that contain different types of information. Each chunk has a specific purpose and contains metadata about the image. Understanding these chunks is key to analyzing PNG metadata effectively.
IHDR (Image Header) Chunk
Contains basic image properties: width, height, bit depth, color type, compression method, filter method, and interlace method. This is the first chunk after the PNG signature.
PLTE (Palette) Chunk
Contains the color palette for indexed color PNGs (color type 3). This chunk is optional and only appears in PNGs with indexed color.
IDAT (Image Data) Chunk
Contains the actual image data, compressed using the DEFLATE algorithm. Large images may have multiple IDAT chunks.
IEND (Image End) Chunk
Marks the end of the PNG file. Contains no data, just signals that there are no more chunks.
tEXt (Text) Chunk
Contains keyword-value pairs with textual information like title, author, description, copyright, creation time, and software used.
zTXt (Compressed Text) Chunk
Similar to tEXt but with compressed textual data to save space.
iTXt (International Text) Chunk
Supports international text with language tags and UTF-8 encoding. Can contain translated keywords and values.
tIME (Time) Chunk
Contains the time of the last image modification (not creation). Uses UTC time.
Why Use Our PNG Metadata Viewer?
Complete Privacy Protection
All metadata analysis happens locally in your browser. Your PNG files never leave your device or get uploaded to any server.
Comprehensive Analysis
Extracts all types of metadata including technical specs, EXIF data, PNG chunks, and hidden information from PNG files.
Export & Share Results
Export metadata as JSON or CSV files. Copy to clipboard or save reports for documentation and analysis.
How to View PNG Metadata in 3 Simple Steps
Upload PNG File
Drag & drop or click to upload your PNG image file
Automatic Analysis
Our tool automatically extracts all metadata from the PNG file
View & Export
Browse metadata categories and export results as needed
Frequently Asked Questions
Q: What types of metadata can PNG files contain?
A: PNG files can contain technical metadata (dimensions, color type, bit depth), creation metadata (author, software, creation date), EXIF data (camera settings, GPS), and textual metadata (keywords, descriptions, copyright information) stored in various PNG chunks.
Q: Do all PNG files have metadata?
A: All PNG files have basic technical metadata in the IHDR chunk (dimensions, color type, etc.). However, additional metadata like EXIF data, textual information, or creation details are optional and may not be present in all PNG files.
Q: Can PNG metadata be edited or removed?
A: Yes, PNG metadata can be edited or removed using various image editing software or specialized metadata editing tools. However, basic technical metadata (IHDR chunk) cannot be removed as it's essential for the PNG file structure.
Q: How is PNG metadata different from JPEG EXIF data?
A: JPEG files typically store extensive EXIF data in APP segments, while PNG files use a chunk-based system. PNG metadata is more structured but may contain less photographic EXIF data unless specifically embedded by software that supports PNG EXIF storage.
Q: Is viewing PNG metadata safe for my images?
A: Yes, viewing PNG metadata is completely safe. Our tool performs read-only analysis and doesn't modify your images in any way. The analysis happens locally in your browser, so your images never leave your device.
Q: Can I view metadata from screenshots or web graphics?
A: Yes, you can view metadata from any PNG file including screenshots, web graphics, logos, and photographs. However, screenshots and simple graphics may have minimal metadata compared to photographs taken with digital cameras.