Overly complex vocabulary can make writing harder to follow even when every sentence is grammatically clean — visually spotting which specific words are dragging down readability is easier with them highlighted directly in context.
This tool highlights every word exceeding your chosen letter-count threshold directly within your original text, letting you see at a glance which specific words might be candidates for simplifying, rather than just getting an abstract readability score.
This is a practical companion to a readability grade checker — where that tool tells you the overall difficulty score, this one shows exactly which words are contributing to it, making it easier to make targeted edits.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Because there's no sign-up or installation step, you can jump straight from a search result to a working tool in a couple of seconds.
Frequently asked questions
What word length threshold should I use?
8 letters or more is a common starting point for flagging genuinely long, potentially complex words, though you can adjust the threshold based on your target audience and writing context.
Does a long word always mean it should be simplified?
Not necessarily — some long words are the clearest and most precise choice for their meaning; use the highlighting as a prompt to review each flagged word rather than an automatic instruction to change it.