Writing review
Fix
Improve
Argument
Review
Loading the checker on this device...
Show suggestions for
Extra corrections Optional · about 92 MB
A small correction model (Apache-2.0) reads each sentence after the rules and suggests fixes they miss. It downloads once from Hugging Face, then runs on this device with network access off.
Turn on extra corrections
Off. The rules above work without it.
Rewrite with local AI Optional · 1.2 GB on GPU, 1.7 GB on CPU
Make a sentence shorter, more formal, clearer, friendlier, more confident or simply rephrased. IBM's Granite 4.0 1B (Apache-2.0) downloads once from Hugging Face. While it rewrites it has no network access, and your text stays in this tab. Small models can change meaning, so every rewrite is a proposal you accept or discard.
Processing device GPU (recommended, 1.2 GB) CPU (slower, 1.7 GB)
Start the rewrite model Cancel
Not started. Proofreading works without it.
Your writing is checked in this tab by Harper, a rule-based checker. Nothing is uploaded. Drafts stay in this browser on this device; manage them under Documents. The checker downloads once (about 16 MB).