Browser-local image utility
Image Toolbox
Resize and convert JPEG, PNG, and WebP images, inspect common EXIF and GPS metadata, and create a privacy-cleaned copy locally in your browser.
Local image workflow
Convert images and check their metadata
Resize or convert an image, or inspect and remove common privacy-relevant metadata without uploading the file.
Choose an image
PNG, JPEG, or WebP. Maximum 40 MB and 40 megapixels.
Choose an image to begin.
Set the output
Keep the original dimensions to compress only.
WebP supports transparency and often produces smaller web images.
Ready to download
Converted image
- Output
- File size
- Difference
Canvas conversion does not copy common source EXIF, IPTC, or XMP metadata. Animated images use the first rendered frame.
Automatic re-inspection
Cleaned copy verified
Removed container data
Intentionally retained
Verification checks supported common metadata categories. It is not a guarantee that every possible identifying signal has been removed.
Files stay on your device for supported local converters. No upload needed for browser-local tools.
Inputs are not stored by Useful Atlas. Source and output previews are released when you leave or reset the page.
What the browser does
For conversion, the browser decodes the selected raster image, redraws it to a local canvas at the requested dimensions, and encodes a new PNG, JPEG, or WebP file. For metadata inspection and cleaning, it reads and edits supported image containers directly on your device. The selected file is not sent to an image-processing or metadata service.
Use JPEG for photographs without transparency, WebP for flexible web output, or PNG when lossless pixels and transparency matter. Always inspect the preview and downloaded file before replacing an original asset.
Processing limits
- Input: PNG, JPEG, or WebP up to 40 MB and 40 megapixels.
- Output: Up to 12,000 px per side and 40 megapixels.
- Inspection: Common EXIF, GPS, IPTC, XMP, PNG text, ICC profile, and embedded thumbnail data where present.
- Privacy cleaning: JPEG, PNG, and still WebP containers; image pixels are not re-encoded.
- Retained: ICC color profiles and rendering data that affect display.
- Animation: Only the first rendered frame is converted.
What image metadata can reveal
EXIF is a common metadata format used by cameras and phones. It can include capture time, camera and lens details, orientation, exposure settings, an embedded thumbnail, and GPS coordinates. IPTC and XMP can include creator, copyright, caption, workflow, and editing-software information. PNG and WebP can carry several of these metadata families in their own containers.
The inspector starts with a short privacy summary and keeps detailed fields collapsed until requested. If GPS coordinates are present, they are shown prominently because they can reveal where a photo was captured. Useful Atlas does not automatically open a map or send those coordinates to another service.
How privacy cleaning is verified
The cleaner removes common EXIF and GPS data, IPTC, XMP, text comments, embedded EXIF thumbnails, and non-rendering application metadata from supported still-image containers. It preserves the encoded image pixels, dimensions, animation data in PNG, and color or rendering information needed for faithful display. Animated WebP cleaning is not offered because its nested container can preserve data the current verifier does not fully cover.
After cleaning, the output is inspected again before the download link appears. A successful result means the supported common metadata categories were not detected. It does not guarantee anonymity: visual details, filenames, watermarks, unrecognized private data, or other identifying signals can still matter.
FAQ
Does Image Toolbox upload my file?
No upload needed for browser-local tools. Files stay on your device for supported local converters, and inputs are not stored by Useful Atlas.
Which image formats can I use?
Conversion, metadata inspection, and privacy cleaning support JPEG, PNG, and WebP. Privacy cleaning is limited to still WebP files. Browser codec support controls conversion output.
Can I compress an image without resizing it?
Yes. Keep the original width and height, choose JPEG or WebP, and adjust quality. PNG uses lossless encoding and does not use the quality slider.
Why can the converted image be larger?
File size depends on the image content, dimensions, output format, and quality. PNG can be larger for photographs, while high-quality JPEG or WebP output can also exceed an already optimized source.
What image metadata can the inspector detect?
It checks common EXIF, GPS, IPTC, XMP, PNG text, camera and lens, capture date, software, author, copyright, embedded thumbnail, and ICC profile information where present.
Does the inspector contact a map service when GPS data is found?
No. Coordinates are displayed locally and no map provider is contacted. The coordinates are not included in Useful Atlas analytics.
How does the image privacy cleaner work?
For supported still images, it removes defined metadata containers without re-encoding the image pixels, then automatically inspects the cleaned copy again. ICC color profiles and rendering data are intentionally retained.
Does a clean result prove that an image is anonymous?
No. Verification checks supported common metadata categories. It cannot prove that every possible metadata field, visual clue, watermark, filename, or identifying signal is absent.
Does converted output keep metadata or animation?
Canvas conversion does not copy common source EXIF, IPTC, or XMP metadata. Animated images are converted from the first rendered frame.