See Incise in action.
A quick look at the editor doing real work—parsing data, rendering Markdown, diffing against disk, and switching themes in a single keystroke.
Open any CSV as a real table
Point Incise at a delimited or fixed-width file and it detects the columns for you, then shows the raw text and a live, color-coded table side by side. Sort, filter, and edit cells in place—changes write straight back to the file.
Fast, native syntax highlighting
A customized Scintilla engine drives multi-tab editing, code folding, and a workspace file tree—responsive even on large files, with zero UI lag.
Live Markdown & HTML preview
Split the editor with a rendered preview (⌘⌥P) and watch it update as you type—the source in one pane, its formatted output in the other. Light or dark, following your theme.
Side-by-side diff against disk
Compare your unsaved edits with the version on disk (⇧⌘D). Additions and changes are marked natively, so you stay in complete control of every write.
Inline spell-check
Misspellings are underlined as you type in plain-text notes and Markdown. Right-click a squiggle for suggestions and keep writing.
An integrated terminal
Drop a real terminal below the editor (⌃`), opening right in your project folder—git-aware, with tabs and per-terminal themes. Available in the Homebrew / direct-download edition.
Works with Claude Code
Run Claude Code in Incise’s built-in terminal—or any terminal—and type /ide to connect it to your editor. Claude sees your active file and selection, opens files on request, and proposes edits as a native diff you accept or reject—your editor stays the source of truth.