HWPXkit

HWPXkit brings HWPX into Claude. HWPX is the open XML document format of Hancom Office Hangul, published as Korean national standard KS X 6101 — the format the Korean government adopted as its standard for official documents.

Give a direct download link (HTTPS) to an HWPX or HWP file. Files attached in the Claude chat cannot reach the server; for a file on your computer, upload it at hwpxkit.jhlim.dev and edit it there. HWPXkit opens the file in a private, expiring session and lists what can be edited: form cells, paragraphs, table rows, and LaTeX equations. You can then fill blanks, rewrite text, change run-level formatting, and insert or delete rows. Each result comes back as an expiring download plus a one-step rollback token, so a wrong edit costs one message to undo.

Your source file is never modified — every edit happens on a private working copy. Sessions and download links expire on their own, and closing a document overwrites all data in every memory block it held with zeros. Inspection comes at two levels: an aggregate summary that reports only counts and structure, with no document text, and a target listing that returns the current text of each editable field together with a label that helps you tell the fields apart — for a form cell, the text of the left neighbouring cell in the same row, or of the right neighbour when the left one has no text; otherwise the target's own text, shortened only when it exceeds the display limit. A label is a display hint, not a selector, and carries no direction. What comes back is the editable fields and their labels rather than the whole document body, and HWPXkit never classifies a document or analyzes it for subject matter.

Free during public beta. Requires a free HWPXkit account, authorized through OAuth.