What is DiffCounter?
Paste your text to check its character count and limit. Compare revisions from AI or your own edits, and restore an earlier version from history.
Use it to
- Keep a college essay or personal statement under the limit (e.g. 650 words for the Common App)
- Compare your original text with a version rewritten or edited by ChatGPT or another AI
- Check how far over the limit an AI answer went when it ignored your word count
- See what changed between drafts of a thesis, paper or report
- Fit an abstract or summary into a set number of words
- Count characters without spaces and line breaks for forms that require it
- Review edits to cover letters, emails and work documents before sending
How counting works
Words: contractions and hyphenated words count as one; punctuation alone does not count. Character counts include spaces and line breaks unless excluded. Submission systems may count differently.