Free tools · Sentiment
Free sentiment analysis tool
Find out how people feel in social posts, comments, reviews and survey answers.
Paste up to 200 lines, one per line. Every line gets a sentiment and a topic, and you get the overall split, the main themes and a CSV.
- Comment analysis
- Review analysis
- Survey answers
- Customer feedback
- Text classification
How it works
Paste your text
Posts, comments, reviews or survey answers. One per line, up to 200.
An AI model reads each line
It labels each line positive, neutral or negative, and names the themes from your text.
Get the split and every label
Overall sentiment, the themes and how each feels, and a CSV of every line.
What is sentiment analysis?
Sentiment analysis reads text and works out how the writer feels: positive, neutral or negative. Social teams use it on comments, mentions and reviews to see whether a launch landed, which complaints are growing, and what customers love.
What to paste
Copy the comments under a post or an ad and see how they split.
App store, product or location reviews, one per line.
Open-text answers from NPS or CSAT surveys.
Find the topics behind negative feedback.
How the labels work
An AI model reads every line on its own and labels it positive, neutral or negative. A second pass names 4 to 8 themes from your text and puts each line in one of them. Net sentiment is the share of positive lines minus the share of negative lines, from -100 to +100.
More free tools
All free tools →Social listening report
Volume, engagement, themes and sentiment for any keyword across X, TikTok, YouTube, Instagram and news.
Share of voice
You vs up to 3 competitors, by channel and by theme.
Social care audit
How fast a brand replies on X, how many posts get an answer, and the top issues people raise.
Questions
How does the sentiment analysis tool work?
Paste up to 200 posts, comments or reviews, one per line. A model labels each line as positive, neutral or negative and sorts the lines into themes it names from your text.
Do I need an email?
Not for your first run of the day. After that we ask for a work email, and it stays free. To search a keyword across social channels, use the social listening report.
Can I check the labels?
Yes. Every line shows its label and theme, and you can download them as a CSV.
What is net sentiment?
The share of positive lines minus the share of negative lines. It runs from -100 to +100.
Built by Sift AI
The free tools take a snapshot. Sift runs all day.
Sift gives social teams AI agents that read every conversation, answer customers, flag what's growing and write the weekly report. The free tools run on the same agents.
- InboxEvery DM, comment and mention in one place, sorted by what needs a reply.
- AI repliesDrafts in your voice that go out when your team approves them.
- TrendsA heads-up when a topic about you starts to grow.
- SiftGPTAsk anything about your conversations and get the answer with the posts.