Fix the metadata before the file reaches your reader
A converted volume with no metadata arrives on an e-reader as a filename. Twenty volumes of one series scatter alphabetically instead of grouping as a set, and every one of them shows the same grey placeholder where the cover should be. The fix has to happen before the file leaves, because once it is on the device the reader is showing you what the file told it.
↑ Upload and configure in our Studio
This site looks the series up while you convert. Type the title, pick the right match, and the series name, author and artist credits, publisher and cover art come back from a real database and are written into the output. Nothing to install, and no second pass with a desktop tagger after the conversion you were already doing.
- Files auto-delete after 24 hours
- No install, runs in any browser
- Free to use
- The genuine open-source KCC engine
How the lookup works
Drop the file and search the title
The filename usually gets you most of the way: it is parsed for a series name and volume number, and the search runs from there. You can correct it before searching.
Pick the right match
Results come back with cover thumbnails and the source each one came from, so same-named series are easy to tell apart. Filter by manga or comics when a search spans both.
See exactly what would change
Fields are shown as a diff against what your file already has, marked with which database each value came from. Apply the whole record or only the fields you want.
Convert with the record embedded
The applied fields are written into the EPUB, KEPUB or CBZ, so the device groups the volume under its series and shows the real cover.
Attribution where it is required
Data from the Grand Comics Database™ (https://www.comics.org/) is used under a Creative Commons Attribution-ShareAlike licence, which requires crediting the database by name wherever its data appears. Any field sourced from it is labelled as such in the editor.
A good filename still helps
The search starts from what it can parse out of your filename, so a file named with its series and volume finds its match on the first try. A file named with a scan group and a release date usually needs the title typing in.
Frequently asked questions
Which databases does it search?
Four. AniList and MangaUpdates for manga, Metron and the Grand Comics Database™ for western comics. Manga titles resolve against the manga sources and single issues against the comics ones, and a search that spans both can be filtered either way.
Why is my series not grouping on the device?
Because the series field is empty or inconsistent across volumes. E-readers group on the series metadata, not on the filename, so twenty files each carrying only a title sort as twenty separate books. Writing the same series name into all of them is what collapses them into one shelf entry.
Why is the cover a grey placeholder?
The file has no cover image defined in its metadata, so the reader has nothing to draw. A record pulled here includes the cover, which is embedded on conversion and displays in the library like a purchased book.
Can I see where each value came from?
Yes, and that is deliberate. Every field is labelled with the database it came from, so you can judge a value rather than take it on faith, and override any field you disagree with before applying.
How does this compare to ComicTagger?
ComicTagger is a capable desktop tool and it goes deeper than this does. The difference is where the work happens: this runs in the browser as one step of a conversion you were doing anyway, with nothing to install and no separate pass over the finished file.
Do I have to use it?
No. The lookup is optional and the conversion runs perfectly well without it. It is there for the libraries where the grouping and the covers matter.
Conversion runs on Kindle Comic Converter (KCC), the open-source engine. The metadata lookup sits in front of it, querying AniList, MangaUpdates, Metron and the Grand Comics Database™ (https://www.comics.org/), whose data is used under a Creative Commons Attribution-ShareAlike licence.
Free, nothing to install, the record embedded as it converts