Get a grammar quality score for your text with specific suggestions for improvement.
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Rule-based grammar and readability checks. Not AI-powered grammar correction.
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Paste text above, or load the example, to get a transparent 0–100 quality score and rule-based issue list.
Deciding whether a cover letter or an essay's writing quality has actually improved between two drafts is hard to judge just by reading them side by side, an objective number that can be tracked and compared is a more concrete way to see whether a specific revision genuinely helped. This tool gives a piece of text a grammar quality score along with specific suggestions for improvement, providing an actual number to track alongside the individual fixes rather than only a list of flagged issues.
See moreSee less about the Grammar Score Checker
Useful for tracking a score across several drafts of the same piece to confirm a revision actually helped, comparing two versions of the same text to see which one is objectively cleaner, or getting a quick overall quality signal on a piece of writing without necessarily working through every single suggestion one by one.
Get a grammar quality score for your text with specific suggestions for improvement. The Grammar Score Checker is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the Grammar Score Checker?
Open the Grammar Score Checker on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the Grammar Score Checker free to use?
Yes. The Grammar Score Checker is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the Grammar Score Checker safe and private?
Yes. The Grammar Score Checker processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the Grammar Score Checker produce?
The Grammar Score Checker produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose (formatted code, converted data, transformed text, or processed media) and is ready for immediate use in your project or workflow.
Does the Grammar Score Checker work on mobile devices?
Yes. The Grammar Score Checker is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality (paste input, transform, copy output) works the same way regardless of your device.
Is there a character limit when I use the Grammar Score Checker?
There's no hard limit. The Grammar Score Checker handles short snippets and long documents equally well because all processing happens on your device. For very large inputs you may notice a brief delay while the browser parses the text.
Does the Grammar Score Checker preserve the original formatting of my text?
The Grammar Score Checker applies only the transformation you select. If you are counting words or characters, the original text is untouched. If you are converting case or removing duplicates, the tool transforms the content as specified and leaves everything else unchanged.
Can I use the Grammar Score Checker offline?
Once the page has loaded, the Grammar Score Checker continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.