AI Sentiment Analysis
Analyze the emotional tone of any text. Detects positive, negative, and neutral sentiment — runs entirely in your browser.
Processed on your device — never uploaded
Enter Text to Analyze
Type or paste text above to see instant sentiment analysis.
Works with reviews, tweets, emails, articles, and any English text.
Frequently Asked Questions
How does this sentiment analysis work?
This tool uses a keyword-based approach inspired by the AFINN lexicon. It scores individual words on a scale from -5 (very negative) to +5 (very positive), handles negators like "not" and "never", and applies intensifiers like "very" and "extremely" to calculate an overall sentiment score.
Is my text sent to any server?
No. All analysis runs entirely in your browser using pure JavaScript. Your text never leaves your device — there are no API calls, no data collection, and no server processing involved.
What do the scores mean?
The sentiment score ranges from -100 (extremely negative) to +100 (extremely positive). Scores above +15 are classified as positive, below -15 as negative, and everything in between as neutral. The confidence percentage reflects how much of your text contributed to the score and how consistent the sentiment is.
Can it understand sarcasm or complex context?
This tool handles basic negation (e.g., "not good" is detected as negative) and intensifiers (e.g., "very bad" scores lower than "bad"), but it cannot detect sarcasm, irony, or deep contextual meaning. For most practical uses like reviews, feedback, and social posts, it provides accurate results.