Privacy Tool

See what's hiding in your PNG.

Inspect every hidden chunk - EXIF data, GPS coordinates, XMP tags, text comments, ICC profiles and more. 100% private: your file never leaves your browser.

0 bytes uploaded
15+ chunk types
100% client-side

Drop a PNG file to inspect

or click to select a file from your computer

Any PNG file up to 100 MB - processed entirely in your browser

What Are PNG Chunks?

A PNG file is made up of a signature and a sequence of "chunks" - each chunk is a named block of data with a 4-character type code. Critical chunks like IHDR (image header) and IDAT (pixel data) are required for the image to display. All other chunks are optional and carry supplemental information.

Software like Photoshop, Lightroom, iOS and Android add metadata chunks - tEXt, iTXt, eXIf - alongside the pixel data. These chunks are invisible to the viewer but can expose camera model, GPS location, author name, creation date, and editing software to anyone who inspects the file.

Privacy & Security

This viewer runs 100% in your browser. Your PNG file is read with the browser's FileReader API and parsed entirely in JavaScript - no data is sent to any server, no network request is made, and nothing is logged. This makes it safe for inspecting confidential documents, legal files, or any sensitive image.

If the viewer finds metadata you want to remove, use our PNG Metadata Remover to strip all ancillary chunks from up to 20 files at once. Pixel quality is never changed.

Chunk Categories Explained

Sensitive - chunks that may expose personal data: eXIf (camera EXIF with potential GPS coordinates), iTXt with XMP containing author or location fields.

Metadata - informational chunks: tEXt / iTXt / zTXt (text comments), tIME (modification timestamp).

Color - rendering chunks: iCCP (ICC profile), gAMA, cHRM, sRGB. Generally safe to share.

Technical - image structure hints: pHYs (DPI), bKGD, hIST. Not privacy-relevant.

Frequently Asked Questions

No - this tool is 100% client-side. Your file is read directly in your browser using the FileReader API and parsed entirely in JavaScript. Nothing is sent to any server. You can disconnect from the internet and the viewer will still work.

PNG files can contain EXIF data (camera make/model, GPS location, shutter speed, ISO), XMP tags from Adobe software (author, copyright, keywords, creation date), plain and compressed text comments (tEXt, zTXt, iTXt chunks), ICC color profiles, modification timestamps (tIME), physical dimensions/DPI (pHYs), chromaticity and gamma data, background color hints, and more. This viewer detects and displays all of them.

Yes. PNG files converted from JPEG photos (for example, screenshots saved from a gallery app, or images exported via Photoshop) often retain the original EXIF block, which can include GPS latitude, longitude, and altitude. The viewer detects EXIF data and flags GPS presence. Use our Metadata Remover to strip it.

Use our PNG Metadata Remover - it strips all ancillary chunks from up to 20 files at once using pngquant and ImageMagick. The pixel data and visual quality are never changed. If this viewer flags sensitive data in your file, a direct link to the remover appears in the privacy assessment panel.

Most image editors add metadata silently. Photoshop embeds ICC profiles and sometimes XMP. GIMP adds a "Comment" tEXt chunk with its version number. iOS adds EXIF when exporting photos as PNG. Windows adds thumbnail and editing metadata. Even saving a PNG through a web browser can add software identification. This viewer reveals all of it so you know exactly what is present.

PNG Optimizer

PNG to ICO Converter

Free online PNG to ICO converter for creating Windows 11, 10, 8, and 7 compatible icons. Perfect for desktop icons, app icons, and website favicons. No signup required - just drag and drop your images.


Drop your .png files here, or click to select them manually!

Up to 20 PNG files, max 5MB each.

Convert from URL
Converted files will appear here.

Drop a file above or paste a URL to get started.



×

Convert PNG from URL

Enter the URL of the PNG file you want to convert to ICO:

Icon Sizes:

Select Icon Layer Sizes (px) to include in the ICO file.

Popular Tools: JPG to ICO SVG to ICO HEIC to ICO WebP to ICO Image to ICO

How to Convert PNG to ICO Files

  1. Upload your PNG image by dragging and dropping it onto the converter, clicking to browse files, or using "Convert from URL" for images hosted online.
  2. Select icon sizes using the checkboxes below. Choose multiple sizes (16x16 to 256x256) to create a multi-resolution ICO file that looks crisp at any display size.
  3. Download your ICO file individually or as a ZIP archive. Your icons are ready to use as favicons, desktop icons, or app icons.
Tip: Start with a square PNG at least 256x256 pixels for best results. For more tips, see the How to Convert PNG to ICO guide.

FAQ - PNG to ICO Converter

When converting from PNG to ICO, quality is generally maintained for the specific dimensions chosen. However, if your original PNG is smaller than the requested ICO size, some quality loss may occur due to upscaling. For best results, start with a high-resolution PNG image.

Yes, the converter fully preserves transparency from your original PNG images when converting to ICO format, making it perfect for creating transparent icons for websites and applications.

Unlike PNG files which contain a single image, ICO files can include multiple images of different sizes within a single file. This allows a single ICO file to adapt to various display requirements, making it ideal for icons used across different resolutions and contexts. For more details, see this guide on understanding the ICO format.

Absolutely! ICO files are the standard format for website favicons. After converting your PNG image to ICO, you can easily use it as your website's favicon to represent your site in browser tabs and bookmarks.

Converting PNG to ICO is necessary when creating website favicons, Windows desktop icons, or application icons. Browsers and Windows specifically require the ICO format for these purposes, even if your original design was created in PNG format.


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