Reverse Image Search
Upload an image to trace its origin, the original artist, and where it has been reposted.
When to Use It
- You received an image and want to know whether it was stolen
- You want to confirm whether a reference image you're using comes from a reliable source
- You want to track where your own work has been reposted without authorization
How to Use It
Find the "Reverse Image Search" card in the toolbox (purple magnifying-glass icon):
- Drag in or click to upload an image — supports PNG, JPG, JPEG, WebP, BMP
- Click "Start Search" — the tool runs all 6 engines in parallel at once: the four external engines SauceNAO, IqDB, Google Cloud Vision, and Baidu Image (which require uploading the image to a temporary server), plus Booru MD5 (exact matching by the file's byte hash) and your local Eagle library (a reverse lookup within the asset library you've already indexed). The latter two stay offline and never upload your image
- Wait for the results — the button is disabled during the search and a loading animation is shown. This usually takes 30-90 seconds
- Review the results — result cards appear at the bottom of the page; each card includes a thumbnail, similarity score, source site, author, and link
注意
Toolbox search always runs every engine in parallel — you don't need to tick them off one by one. Four of those external engines require first uploading the image to a temporary server (auto-deleted after 24 hours); before upload, the image is compressed and its EXIF/XMP metadata is stripped, and this copy may be cached by third-party services. Booru MD5 sends only a 32-character hash, and the local Eagle library is fully offline — neither uploads your image.
How to Read the Results
Once the search finishes, the results area is divided into three parts:
Engine filter tabs — filter results by engine. Only engines that actually returned results get a tab.
Summary card — shows the overall statistics for this search: number of results found, number flagged as artist-original, and number needing review.
Result cards — each card includes:
| Element | Description |
|---|---|
| Thumbnail | The source site's preview image, with a similarity badge overlaid in the top-left corner |
| Similarity | A percentage figure. Green ≥90%, orange ≥70%, gray below 70% |
| Source site | E.g. Pixiv, Twitter, Danbooru, etc. |
| Title / Author | The work's title and the artist's name |
| Action buttons | Open — open the source page in your browser; Collect Evidence — jump to the rights-evidence tool with the URL pre-filled |
How should I read the similarity score?
- ≥90%: very likely a different size/crop of the same original image
- 70%-90%: possibly a different version of the same work, or a highly similar fan piece
- Below 70%: weak relevance, possibly a false match — manual review is recommended
No Results Found?
Possible reasons:
- The image is too new and hasn't been indexed by search engines yet
- The original image has been deleted or set to private
- The image has been heavily cropped, color-graded, or watermarked, causing its features to be lost
- It's a highly original image with no similar versions online
Limitations
- A search cannot be canceled while running — you have to wait for it to finish
- There is no engine-selection toggle; every engine always runs in parallel
- Adjusting the similarity threshold is not supported
- It takes 30-90 seconds, depending on network conditions and engine response speed