Refine and Correct Your Sentence
Corrects Comma Splices
The checker identifies and fixes comma splices. Change “He loves cooking, he often experiments with new recipes” to the grammatically correct “He loves cooking; he often experiments with new recipes.” No more pesky comma splices!
Detects and Corrects Punctuation
The checker suggests where to add necessary punctuation like commas, semicolons, or periods.
Adds Conjunctions
It may recommend adding conjunctions (like ‘and’, ‘but’, ‘although’, etc) to connect clauses properly. For example, in “I was tired I still finished the project,” the tool might suggest “I was tired, but I still finished the project.”
Splitting Sentences
The tool suggests splitting a run-on sentence into two or more separate sentences. From “She enjoys painting her artwork is quite impressive,” it would make two sentences: “She enjoys painting. Her artwork is quite impressive.”
Write with More Confidence
Don’t just take our word for it. Over 20,000 students, writers, and professionals like you have improved their writing with our Run-On Sentence Checker.
“As a freelance writer, I’m constantly juggling multiple projects and deadlines. This sentence checker helps me catch- those lengthy sentences that I sometimes miss in my rush. It’s incredibly user-friendly and efficient.”
Emily Torres
“I never realized how much my run-on sentences were affecting the quality of my academic papers until I started using this checker. ‘[[This tool is absolutely invaluable for any student.”
“As a non-native English speaker, I often struggle with sentence structure. The sentence checker helps me understand where my sentences are too long. I highly recommend it to anyone looking to polish their writing skills.”
Correct Your Run-on Sentences Now – it’s free.
Don’t let long sentences slow you down.
How Sentence Checkup’s Sentence Checker Works
This sentence checking tool uses advanced AI to check for punctuation, grammar, and spelling errors and improve your sentences. You can check run-on sentences in just three steps: