A new puzzle every day
Spot the Change
Someone wrote a note. A tool tidied it up. It reads better, and it says something different. Tap every word that changed the meaning.
Why this is harder than it looks
A rewrite that reads well gets less attention, not more. The changes that matter are small: “about” disappears, “may” becomes “will”, a range becomes one number, a maybe becomes a promise. Each one makes the text sound more confident, and that's exactly why nobody notices.
The skill is the same whether it's a text to your landlord or a report someone will rely on later: compare what it says now with what was meant, not how it sounds.
Some puzzles use real AI outputs from our own tests; each one says so at the end. The rest are written to show the kinds of change these tools make. To check a real rewrite of your own, use Text Compare, or read how an AI edit changed checked citations.
How it works
- Tap any word inside a change to find the whole change.
- Three wrong taps end the round. Rewording that doesn't change the meaning isn't a change.
- Find every change to keep your streak. Your results stay in your browser; there's no account.
- Everyone gets the same puzzle each day, so you can compare.
More free tools
Most of these run entirely in your browser; the citation tools check references against public databases.
Word Counter
Words, characters, sentences and reading time, live.
Citation Checker
Check references and case citations are real.
Daily Crossword
A newspaper-style crossword, new every day.
Case Converter
Switch text to UPPER, lower, Title or Sentence case.
Word Cloud
Your most-used words, drawn bigger.
Readability
How easy your writing is to read, as a school grade.
Word Unscrambler
Type some letters, get every word they make.
Reading Time
How long a piece takes to read.
Citation Generator
Format a source for a reference list: APA, MLA, Chicago or Harvard.
Essay Counter
Word goals and progress for longer drafts.
X / Twitter Counter
Check a post fits before you publish it.
Instagram Counter
See where your caption gets cut off.