Reverse image search for anime art, manga panels and stickers. Send a picture and it looks for the original on SauceNAO, which indexes Pixiv, Danbooru and dozens of other sources. Free.
Where a frame search answers "which episode", SauceNAO answers "who drew this". It is the standard tool for finding the source of an illustration, and this bot is the shortest way to it: forward the picture, sticker or GIF into the chat and read the ranked list of matches, each with a similarity score and a link to where the image lives.
That makes it useful beyond curiosity — crediting an artist properly, finding the higher-resolution original of a picture that arrived compressed, or checking whether a sticker pack is someone's work being reused. Bear in mind that SauceNAO limits how many searches one user may run in a day, so a long session of lookups will eventually be throttled, and a heavily edited or watermarked image can drop below the similarity threshold.
Free
| Criterion | Weight | Points | |
|---|---|---|---|
| Functionality | 25 | 8 / 10 | |
| Reliability & speed | 15 | 8 / 10 | |
| Popularity & trust | 15 | 8 / 10 | |
| Price & free tier | 10 | 9 / 10 | |
| Usability | 10 | 9 / 10 | |
| Safety & privacy | 10 | 8 / 10 | |
| Freshness | 5 | 7 / 10 | |
| Localization | 5 | 10 / 10 | |
| No intrusive ads | 5 | 10 / 10 | |
| Score | 100 | 83.5 |
A frame search finds the episode a screenshot came from; SauceNAO finds who made the picture and where it was posted.
Yes, stickers and GIFs are accepted the same way as pictures.