A full-featured browser text editor with line numbers, character wrap, split panes, inline text compare, find & replace, syntax highlighting, undo/redo, and local autosave. No signup, no uploads.
Toolbar & panels
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Quick answers to common questions
No. ToolReign Text Editor runs entirely in your browser. Your content is never uploaded. Autosave uses localStorage on your device only.
Yes. Your draft is saved to localStorage every few seconds. When you return, your last autosaved text loads automatically — no button needed.
Ctrl+Z undo; Ctrl+Y or Ctrl+Shift+Z redo; Ctrl+F find; Ctrl+H replace; Ctrl+G go to line; Ctrl+S download; Ctrl+Shift+D duplicate line; Ctrl+Shift+K delete line; Alt+↑/↓ move line; Tab indent; Shift+Tab outdent; Escape close panels. On Mac, use Cmd instead of Ctrl. For character wrap, enter a width and press Enter or Wrap; Unwrap restores the text from before wrapping. In split view, toolbar actions apply to whichever pane has focus. Use Split for a second pane, then Compare for side-by-side red/green diff highlighting (same as Diff Checker). The find bar has Prev/Next buttons. Expand “Keyboard shortcuts” under the toolbar for the full list.
Open any plain text file: .txt, .md, .json, .html, .css, .js, .ts, .xml, .csv, and more. Download saves as .txt with your chosen line endings (LF or CRLF).
Your data is processed entirely in your browser. Nothing is sent to any server.