Punctuation Checker – Fix Punctuation Online Free

Introduction: Trencada's free Punctuation Checker scans your writing for common punctuation mistakes — double spaces, spaces before commas, missing spaces after periods, lowercase sentence starts, repeated exclamation marks, unbalanced brackets and quotes, and missing end punctuation. Everything runs in your browser, so your text never leaves your device. How to Use: 1. Paste your text into the box. 2. Click Check Punctuation. 3. Review each flagged issue with its line number and suggested fix. 4. Optionally click Apply Safe Fixes to correct spacing issues automatically. Key Features: 10 punctuation checks with line numbers and context snippets; word and sentence counts; one-click safe fixes for spacing errors; private by design — text is never uploaded. Why Choose Trencada: Free forever, no account, no word limits on checks, and your writing stays on your own device. FAQ: Is my text uploaded anywhere? No — the check runs entirely in your browser. What does Apply Safe Fixes change? Only spacing issues (double spaces, space before punctuation, missing space after commas) and the lowercase pronoun "i" — never your wording. Is it a full grammar checker? It focuses on punctuation; for deep grammar review pair it with a dedicated grammar tool.