Online Tool Store
Number Style Consistency Checker
Scan pasted text for numbers under 10 (or 100) written inconsistently as digits versus spelled-out words, and highlight each instance so you can apply one style consistently.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Inconsistencies found: 0
Example shown — replace it with your own text.
How it works
- Paste your text and choose the spell-out threshold that matches your style guide (below 10 or below 100).
- The checker scans for digit numbers under that threshold and flags each one with a suggested spelled-out replacement.
- If both digits and spelled-out words appear for numbers under the threshold, it flags the mixed style so you can standardize.
FAQ
What's the difference between AP style and Chicago style for numbers?
AP style (common in journalism) spells out numbers zero through nine and uses digits for 10 and up. Chicago style (common in books and academic writing) spells out numbers zero through ninety-nine and uses digits from 100 up. Pick the rule matching your publication's style guide.
Why does mixed usage matter for readability?
Switching between "3 speakers" and "five moderators" in the same document reads as inconsistent and unpolished, even though both are individually correct — most style guides pick one threshold specifically to avoid this.
Does it catch every numeral in the text?
It scans for standalone digit sequences and common spelled-out number words up to twenty, which covers the vast majority of everyday inconsistencies — very large numbers, dates, and measurements are usually exempt from spell-out rules anyway and aren't flagged.
Automated checker vs. a human copy editor
| Feature | This checker | Human copy editor |
|---|---|---|
| Instant scan of a whole document | ✓ | ✗ |
| Understands context-specific exceptions (dates, ages, stats) | ✗ | ✓ |
Great as a first pass before a final proofread — it'll catch the obvious mixed-style cases fast.