FAQ
Will Hexter ever modify my file without asking?
No. Files open read-only by default. Editing is an explicit toggle, and every edit lives in a virtual patch layer you can revert per-patch. Overwriting the original file requires confirmation and Hexter offers a timestamped backup first.
Can Hexter handle very large files?
Yes. The grid scrolls the entire file using a proportional scroll surface, and jump, search, bookmarks, and structure navigation all work byte-exactly. Bytes are read on demand through an LRU chunk cache instead of loading the whole file into memory.
Does Hexter use Apple Intelligence, and does it ever touch my bytes?
Hexter's Analyze tab can use Apple's on-device Apple Intelligence to summarize, label, and help you search a file. It's analysis only — Apple Intelligence never mutates your file directly; only your own explicit patches do.
What macOS version does Hexter require?
macOS 26 or later.
Is Hexter sandboxed?
Yes. Hexter runs in the App Sandbox with user-selected file access, and recent files persist across launches via security-scoped bookmarks.