Sentiment Analyzer

See whether a text reads positive, negative or neutral, with the evidence behind the score.

Analyse the tone

Scoring mode

Overall score: —

Label: —

Positive words: — · Negative words: —

Sentence scores will appear here.

Paste some text to begin.

The lexicon and all scoring run locally in your browser.

Common questions about the free online sentiment analyzer.

Paste your text and click Analyse. You get an overall score, a label from very negative to very positive, and a score for each sentence.

Every word is looked up in a fixed lexicon. Positive words add their weight and negative words subtract theirs, and the total becomes the score.

Partly. A negator such as not, never or cannot shortly before a sentiment word flips that word's sign, so not good counts as negative.

Words such as very, really or extremely multiply the weight of the next sentiment word, so very good scores higher than good alone.

It is approximate. Sarcasm, irony, idioms and mixed feelings often fool a word list, so treat the label as a rough signal rather than a verdict.

Scores of one and above read positive and three and above very positive, while the same figures below zero are negative and very negative.

If none of its words appear in the lexicon, nothing is counted. Technical or unusual wording is the usual reason for a neutral result.

It divides the total by the number of words, which makes it easier to compare texts of very different lengths.

No. The lexicon is stored in the page and every score is computed in your browser, so nothing is uploaded.

Last updated: October 10, 2026