Knowing not just how many words changed but what percentage the text grew or shrank by gives useful context — cutting 200 words from a 300-word piece is a dramatic 67% reduction, while the same 200 words from a 3,000-word document is barely noticeable at under 7%.
This tool counts words in both your original and revised text, then calculates the percentage change relative to the original length, showing whether the revision expanded or condensed the content and by how much proportionally.
This is useful when trimming toward a percentage-based target (like "cut this by 20%"), or when comparing the relative scale of edits between two different pieces of writing where raw word counts alone wouldn't give a fair comparison.
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
Is the percentage calculated relative to the original or the revised text?
The percentage change is calculated relative to the original text's length, which is the standard convention for expressing growth or reduction as a percentage.
What does a negative percentage mean?
A negative percentage indicates the revised text is shorter than the original — the tool shows both the direction (growth or reduction) and the magnitude of the change.