Review sentiment analyzer

Paste a batch of product reviews, comments or social mentions, one per line. You'll get the positive, neutral and negative split, the words driving each side, and a label for every line. Nothing leaves your browser.

Paste reviews (one per line)

Paste some reviews to begin

—Positive
—Neutral
—Negative

Analyses up to 500 lines. Nothing is uploaded or saved.

The words behind the score.

The most common positive and negative terms across your batch. A repeated word in the negative column, like "late" or "broke", is a theme worth chasing.

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How each review scored.

A transparent word list, not a black box.

This tool scores each line against a list of positive and negative words, flips a word's sign when a negator such as "not" or "never" comes just before it, and counts it double after an intensifier like "very" or "super". A line's score is the total: above zero is positive, below zero is negative, exactly zero is neutral.

That makes it quick and easy to reason about, and it also means it has limits. It's English only, and it can't read sarcasm ("great, another broken zip"), mixed reviews, slang or context. Treat the split as a rough first pass over a batch, and read the lines that surprise you.

Working out sentiment with more nuance, across every platform and continuously, is what Mentionfront's sentiment and intent analysis is built for. If you want the background first, start with the brand sentiment analysis guide.

Find more to analyse.

Questions about review sentiment analysis

What is review sentiment analysis?
It's sorting written feedback into positive, negative and neutral, so you can see at a glance how customers feel and which topics drive it, instead of reading every review.
Is my data sent anywhere?
No. The analysis runs in your browser, and nothing you paste is uploaded, stored or logged.
How accurate is it?
It's a simple word-list method, so expect it to be right on clear-cut reviews and unreliable on sarcasm, mixed opinions and slang. It's good for a quick read of a batch, not for a definitive figure.
Where can I get reviews to paste?
Copy them from your Shopify review app, Google reviews, Trustpilot, Amazon listings or social comments. Put one review on each line.

Get sentiment on every mention, automatically.

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