Tools
Inspect HEIC structure and metadata
See dimensions, codec, color profile, image count, thumbnails, auxiliary data, EXIF, GPS and structural warnings — and pull out the embedded thumbnail.
Index
9 tools
- 01HEIC File CheckerBasic file and image information at a glance.Inspect
- 02HEIC Metadata ViewerRead EXIF, GPS, XMP, color profile and HEIF-specific metadata.Inspect
- 03HEIC EXIF / GPS ViewerFocus on camera, exposure and location data in a HEIC file.Inspect
- 04HEIC InspectorInspect container, codec, image count and auxiliary capabilities.Inspect
- 05HEIC Health CheckFind out whether a file is healthy, damaged or unsupported.Inspect
- 06HEIC to JSONExport metadata, structure and health as JSON.Inspect
- 07HEIF Structure ViewerExplore the raw ISOBMFF box tree of a HEIC file.Inspect
- 08Extract HEIC ThumbnailPull the embedded thumbnail out of a HEIC file.Inspect
- 09Extract Images from HEICSave every image in a HEIC: frames, thumbnails, depth maps and masks.Inspect
About these tools
A HEIC file is a container, not a flat picture. Inside there can be a main image, a thumbnail, tiles, Exif, GPS and XMP metadata, a colour profile and extras such as depth maps and HDR gain maps. These nine tools read that container in your browser and answer different questions about it, so pick by the question rather than by the format name. Reading never changes the file. Only the metadata exports and the two image extractors write anything, and what they write is a new file.
Most of these tools read the container and metadata without decoding a single pixel, which keeps them fast on large photos. The Health Check is the one that decodes the main image by default, because "does it actually open?" cannot be answered any other way. The Inspector can do the same on request. The reader is deliberately defensive: it caps box, item and tag counts, and a damaged file degrades into a warning or a partial result instead of a crash.
The tools are layers. File Checker is the plain-English summary. The Inspector explains how the file is built, and the Structure Viewer shows the raw boxes under it. On the metadata side, the EXIF viewer says what a photo reveals about its owner, the Metadata Viewer lists every tag, and HEIC to JSON exports the lot. The Health Check judges validity, and the thumbnail extractor saves the embedded preview image as a PNG. Extract Images from HEIC goes further and saves every image in the container: extra frames, depth maps, HDR gain maps and masks.
Choosing the right tool
"What is this file, and will it open?"
Start with File Checker. It gives one plain-English sentence, whether the file size is normal for its pixels, and where this kind of file opens.
"What does this photo reveal before I share it?"
Use the EXIF and GPS viewer. It hides the location until you reveal it, checks that the coordinates are plausible and lists serial numbers, owner names and other identifiers by severity.
"I need one specific tag, or the XMP or ICC data"
Use the Metadata Viewer. Every Exif, GPS, MakerNote, XMP, ICC and HEIF property is searchable, with hex bytes, and the filtered rows export as JSON or CSV.
"It will not open, or I think it is damaged"
Run the Health Check. It decodes the image and says whether the file is damaged, unsupported, too heavy for a browser tab or not a HEIC at all, such as a JPEG with the wrong extension.
"Does it have depth, HDR or tiles? Why is it big?"
Use the Inspector for brands, codec profile, tiles, auxiliary images and a table of every item with its size. Its decode test runs only when you ask for it.
"Show me the raw container"
Use the Structure Viewer for the box tree with sizes and byte offsets. It lists boxes and does not interpret their contents, so pair it with the Inspector for values.
"I need the data in a script or a catalogue"
Use Metadata to JSON. One document holds the file facts, tags, item table, codec details and auxiliary images, and it never decodes pixels.
"I want the small preview image inside the file"
Use the thumbnail extractor. It saves the embedded thumbnail as a PNG without decoding the full-resolution photo.
"I want the depth map, the extra frames or the masks"
Use Extract Images from HEIC. It lists every image in the file with a preview, and saves the ones you tick as PNG, JPG or WebP, or all at once as a ZIP.