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Sentiment Analysis Tool

Measure sentiment, identify entities, and classify the tone of any text in real-time. Built for content reviewers, brand monitors, and review-response teams.

Sentiment Analysis Tool
Paste any text. Returns overall sentiment (-1 to +1), per-sentence breakdown, and a tone classification. Lexicon-based, runs instantly, no download required.
What it does

Real-time sentiment, entity extraction and tone classification

Paste any text, a customer review, a social mention, a draft article, a competitor's landing page, and get back: overall sentiment score (-1 to +1), per-sentence sentiment, named entities (brands, people, locations) with their individual sentiment, and a tone classification (formal, casual, persuasive, technical, etc.).

Free, browser-based, supports 14 languages, no signup. Built for the moment when you need quick insight, not a quarterly report.

Use cases

Five real ways consultants use sentiment analysis

1. Competitor review mining

Pull 100 reviews of a competitor's product. Run sentiment + entity extraction. The negative-sentiment entities tell you exactly which features customers hate. That's your positioning.

2. Content tone calibration

You're writing for a B2B fintech audience but your draft sounds like a casual blog. Run it through and check the tone classification. Adjust until you hit "professional" or "technical".

3. Headline A/B test pre-screening

You have 10 headline variations. Run them through. Pick the 3 with the most distinct sentiment profiles to A/B test, variants with similar sentiment usually perform similarly.

4. Brand mention monitoring

Pull mentions of your brand from Twitter/Reddit/news. Bulk-analyse sentiment. Sudden negative spike means a PR issue is brewing, catch it 24 hours before it goes viral.

5. AI engine answer auditing

For GEO: ask ChatGPT, Gemini, Perplexity about your brand category. Run their answers through sentiment analysis. Negative or neutral mentions of your brand → you have a citation gap to fix.

Frequently asked

FAQs about the Sentiment Analysis Tool

Around 92% on clear positive/negative/neutral classification, dropping to ~80% on subtle/sarcastic content. Best for high-volume bulk analysis where directional accuracy matters more than per-sentence precision.
Sentiment = positive/neutral/negative emotional valence. Tone = communication style (formal, casual, persuasive, technical, urgent). A piece of content can have positive sentiment but informal tone, or negative sentiment with formal tone.
Up to 50,000 characters per request, about 7,500 words. For longer documents, split into sections.
English, Spanish, French, German, Portuguese, Italian, Dutch, Japanese, Chinese (simplified & traditional), Korean, Hindi, Arabic, Russian. Auto-detect mode picks the right model.
Yes, paste a URL and the tool fetches the page text and analyses it. Useful for reviewing competitor pages or news articles.
No. Text is processed in-memory only and discarded immediately after the response. Nothing is logged.
Yes, bulk mode accepts up to 200 text entries per request. Output is CSV-ready with per-row sentiment, entity, and tone columns.
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