Online Text Editor
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.
Keyboard shortcuts
- Ctrl+Z — Undo
- Ctrl+Y / Ctrl+Shift+Z — Redo
- Ctrl+F — Find
- Ctrl+H — Find & Replace
- Ctrl+G — Go to line
- Ctrl+S — Download file
- Ctrl+Shift+D — Duplicate line
- Ctrl+Shift+K — Delete line
- Alt+↑ / Alt+↓ — Move line up/down
- Tab / Shift+Tab — Indent / outdent
- Escape — Close panels
Toolbar & panels
- Wrap width + Enter — Hard-wrap each line at N characters (active pane)
- Unwrap (toolbar) — Restore text from before the last wrap (active pane)
- Split (toolbar) — Second independent editor pane
- Compare (toolbar) — Side-by-side diff with red/green highlights (split view)
- Find · Prev / Next — Jump between search matches in the active pane
Related Tools
More free utilities you might find useful
Frequently Asked Questions
Quick answers to common questions
Is my text sent to a server?+
No. ToolReign Text Editor runs entirely in your browser. Your content is never uploaded. Autosave uses localStorage on your device only.
Does it autosave my work?+
Yes. Your draft is saved to localStorage every few seconds. When you return, your last autosaved text loads automatically — no button needed.
What keyboard shortcuts are supported?+
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.
What file types can I open?+
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).