Free Tool

Free Review Sentiment Analyzer

Paste customer reviews and see a breakdown of positive, negative and neutral sentiment — plus the words driving each emotion. Runs in your browser, no signup.
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5x more reviews
4.9 ★ for active stores
One-click setup
Free · No signup

Review sentiment analyzer

Paste customer reviews (one per line) and get an instant sentiment breakdown — positive, neutral, negative — plus the words driving each emotion. Runs 100% in your browser.

Positive
0%
0 reviews
Neutral
0%
0 reviews
Negative
0%
0 reviews

Top words driving sentiment

extracted from your reviews

What customers love

What to fix

Reviews tagged

ordered by most negative first
Do this automatically — on every review, in real time Reviewz.ai flags unhappy customers before they post a bad review, routes them to your private feedback portal, and sends re-engagement offers via WhatsApp & email.
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Instantly audit a batch of reviews

Trustpilot Section Shopify
Review Sentiment Analyzer
Review Schema Generator
Mensual
Annual
Save 20%
Starter
0-250 orders /mo
+0.15€ per extra order
59€
per month
Pro plan includes:
WhatsApp, SMS, Email
Basic AI Analysis
Trustpilot Auto-Matching Reviews
Custom branding
Slack & discord notifications
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Growth
250-2500 orders /mo
+0.10€ per extra order
119€
per month
⃪ All Starter features
Upsell automation
AI Analysis & insights
Automatic review reminder
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Unlimited
Unlimited orders /mo
299€
per month
⃪ All growth features +
Dedicated Success Manager
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How it Works

Instantly audit a batch of reviews

Paste up to several hundred reviews and get a visual sentiment breakdown — percentages, top positive/negative words, and every review tagged and sorted. Perfect to audit Trustpilot, Google, Judge.me or Amazon exports before automating with AI.
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Book a Demo

Paste your reviews

One review per line. Export them from Trustpilot, Google Business Profile, Judge.me, Amazon, your Shopify app — anywhere. The counter updates live as you paste.

Click Analyze

Sentiment scoring runs 100% client-side with a lexicon model (positive/negative words, intensifiers, negation handling). Nothing leaves your browser.

Read the breakdown

You get a percentage split, the top 10 words driving love vs. frustration, and every review color-coded by sentiment — sorted most-negative first, so you see what to fix.

FAQ

Your questions, answered.

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How accurate is the sentiment analysis?
Around 80% on standard English reviews. Lexicon models don't catch sarcasm, irony, or domain-specific vocabulary. For production use on thousands of reviews with 95%+ accuracy, Reviewz.ai runs LLM-powered sentiment analysis in real time.
Does it support French, Spanish or German?
The free tool is optimized for English. A few French/Spanish/German words are detected but accuracy drops. Reviewz.ai's paid sentiment engine supports 40+ languages natively.
Can I export the results to CSV?
Not in the free version. Use the dashboard to spot patterns visually. If you need CSV exports, API access, or Slack alerts on negative sentiment spikes, that's built into Reviewz.ai.
How do I do this automatically on every new review?
Reviewz.ai analyzes every incoming review as it arrives, routes happy customers to Trustpilot/Google/Judge.me, and privately captures unhappy feedback so you can fix issues before they become 1-star reviews. Free on Shopify.

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with reviews.

Turn every purchase into a 5-star review with WhatsApp, SMS,
E-mail, and every reviewer into a repeat customer.
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5x more reviews
4.9 ★ for active stores
One-click setup
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