Tone is the part of a review authors remember longest. This free tool counts harsh, constructive, and positive wording cues in your draft so you can soften what lands badly without weakening the science.
What the tool does
Tone is the part of a review authors remember longest, and it is the part reviewers check least. A review can be scientifically correct and still land badly if its wording sounds dismissive, and a gentle review can hide the fact that it says almost nothing. This tool reads a review draft and counts wording cues in three groups: harsh cues such as unacceptable or sloppy, constructive cues such as consider or suggest, and positive cues such as clear or rigorous. The result is a single label, harsh, constructive, positive, or neutral, with the counts behind it, so you can see why the label was given.
How to use it
Paste your full draft, or one major comment at a time, and press the button. Read the label first, then the counts. If harsh cues dominate, find each harsh word and replace it with the specific problem it stands for: instead of sloppy methods, write the sample size is not justified in section 3. If constructive cues are absent, add one concrete suggestion per criticism. Then reread the draft as if you were the author receiving it on a bad day; that read catches more than any score.
Worked example
Consider a draft that says: The methods are sloppy and the argument is fundamentally flawed, but the topic is novel. The tool counts two harsh cues, one positive cue, and no constructive cues, and labels the draft harsh. The fix keeps the criticism but changes its form: The sample size justification is missing, which weakens the argument, and the authors could strengthen the paper by adding a power analysis. The science is unchanged. The tone is now something an author can act on instead of defend against.
Reading the results honestly
Cue counts are a rough guide, not a judgement of character. A direct sentence such as this claim is incorrect can be entirely fair, and the tool will not flag it, while a polite sentence can still be unhelpful. Field norms differ too: some communities value bluntness, others read it as hostility. Use the label as a prompt to reread, not as a verdict to obey. The question that matters is not whether the tool liked your draft, but whether an author could use it to improve the paper.
Honest limits
This tool counts words from fixed lists. It does not understand sarcasm, context, or the difference between criticising a claim and criticising a person, and its lists are in English only. A review in another language, or one that uses unusual phrasing, will score as neutral even if it is harsh. It also cannot judge whether the criticism itself is correct. Treat it as a pre-send mirror, and keep the final judgement with the reviewer.
Practical tips for kinder, sharper reviews
Write the criticism first and the tone second: draft your points plainly, run the tone check, and then rewrite only the wording, never the substance. Replace every harsh adjective with a concrete observation plus a page or section reference, because specifics are both kinder and more useful than labels. End each major criticism with a suggestion the author can actually carry out, even if the suggestion is to run one more control or to soften one claim. Read the finished review aloud once; sentences that sound fine silently often sound harsh spoken. If you feel angry at a paper, wait a day before sending, since reviews written in frustration are remembered far longer than the paper itself.
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Spanish version: Herramienta de Evaluación del Tono de Revisión Gratis y Online · All free online tools.
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