SentenceCheckup review
A free browser checker for sentence-level corrections and separate rewriting tools.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
SentenceCheckup is a free, browser-based proofreading tool for students, writers, and professionals who need to check English sentences in blog posts, academic papers, or essays. Paste text into its editor to check grammar, spelling, punctuation, run-on sentences, and sentence fragments. The editor highlights mistakes and shows correction suggestions; users can apply fixes one by one or in one action. The vendor says the tool does not require sign-up, making it suitable for occasional sentence-level checking without a paid plan.
Its scope goes beyond basic correction, but remains sentence-focused. Separate tools handle rewriting, expanding, shortening, and counting sentences, while the checker mentions advanced suggestions for style issues. These tools can help when a draft needs a quick pass or a sentence needs a different length or phrasing. They are distinct functions rather than evidence of a broader document workflow: the product is accessed on the web, and the available platform coverage does not extend beyond the browser. It may suit solo writers and small-scale work better than a team process.
The free offering is the product's central proposition; there are no paid tiers to compare in the published description. Support is offered by email and phone. The trade-off is limited fit for ongoing proofreading across apps: SentenceCheckup has no browser extension, team features, or offline mode. Choose it for free checks and sentence tools in a browser; consider another option if you need collaborative review, desktop coverage, or proofreading outside a web editor.
SentenceCheckup pros and cons
- Where it wins
- Checks grammar, spelling, punctuation, run-ons, and sentence fragments
- Highlights issues and offers suggestions with individual or one-action fixes
- Includes separate tools to rewrite, expand, shorten, and count sentences
- Where it doesn't
- Works in a browser rather than as a desktop or mobile app
- No browser extension for checking text outside its editor
- No team features or offline mode
SentenceCheckup fact sheet, pricing and score →
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