Transition word checker
Find sentences missing a transition word and see suggestions to improve flow.
Transition word checker
Paste an essay, article or email and this tool checks how many of your sentences open or contain a transition word or conjunction — the "however", "therefore" and "for example" style connectors that carry a reader from one idea to the next. It reports the share of sentences that qualify, compares that share against a recommended threshold, and lists the sentences that have none, each paired with a few suggested words that would fit.
The language option switches between built-in transition-word lists for English, Slovak, Czech, German, Polish and Hungarian, so the check matches the conjunctions and connectors that market actually uses. The threshold sets the recommended percentage of sentences that should carry a transition — most style guides land somewhere around 25–40%, and you can tune it to match your own editing standard. A custom word list lets you add house-style connectors of your own, on top of the built-in set, comma- or line-separated. Turning on "sentence-initial" narrows the check to transitions that open a sentence, which is the stricter reading some style guides prefer. "Highlight found words" switches the output from a plain problem list to the full text with every matched word marked in place, so you can see coverage across the whole passage rather than just the gaps.
The tool splits text into sentences using standard punctuation rules, so abbreviations, decimals and initials don't create false sentence breaks, and it works the same whether your paragraphs use Windows or Unix line endings. On very long documents the check runs the same way, sentence by sentence, and the live tally under the output shows the sentence count, the ratio and the character count as you type.
Everything happens locally in your browser — no draft is uploaded anywhere, so it's safe to run on unpublished work. Copy the result, download it as a .txt file, or send it straight into another tool such as the readability score or sentence counter to keep refining the same text.