See positive vs. negative split + top themes from any video
A positive/negative/neutral breakdown, the dominant themes, and the highest-liked praise and pushback from the comment section.
This free tool analyzes the emotional tone of a YouTube video's comments — returning a positive/negative/neutral split, the themes behind each side, and the top comments driving each signal. Instantly see how an audience received a video without reading every reply. Paste a URL and get the read.
How to analyze YouTube comment sentiment
- 1Paste the video URL — any public YouTube video with comments enabled.
- 2Run the analysis — the tool scores each comment and groups them by sentiment and theme.
- 3Read the breakdown — a positive/negative/neutral split with the themes and top comments behind each.
Why use it
- Tone at a glance — the positive/negative/neutral split in seconds.
- Themes per sentiment — know not just that it's negative, but what they're negative about.
- Competitor intelligence — run it on a rival's video to see exactly what landed or backfired.
- Free — no sign-up.
Frequently asked questions
What does the sentiment analyzer actually measure?+
It scores each comment as positive, negative, or neutral, then aggregates the results into a percentage split and groups the dominant themes behind each sentiment — so you see the emotional tone and the reasons behind it.
How is this different from the Comment Summarizer?+
The Comment Sentiment Analyzer tells you **how** the audience feels — the emotional valence and the themes driving it. The [Comment Summarizer](https://veridive.com/tools/comment-summarizer) tells you **what** they're saying — the topics, themes, and representative quotes. Use Sentiment for reception and tone; use Summarizer for substance and ideas.
How accurate is sentiment analysis, and what about sarcasm?+
AI sentiment scoring is reliable for clear praise or clear criticism, but sarcasm, irony, and in-community humour are genuinely hard to classify. Treat the percentages as directional, not precise — verify the underlying comments when the split matters for a decision.
Can I use it for competitor or market research?+
Yes — it's one of the strongest use cases. Run it on a competitor's video to see exactly how an audience received a product launch, a strategy, or a talking point. The theme breakdown shows what landed and what didn't.
Is the sentiment analyzer free?+
Yes — completely free with no account, no email, and no credit card. Analyze comments on as many videos as you like.
Do I need to sign up or install anything?+
No. It's a browser tool — paste a URL on desktop or mobile. No extension, no account, nothing to install.
Does it work on any public YouTube video?+
Yes — any public video with an open comment section. Videos with comments disabled or heavily moderated will return limited data.
What top comments are shown?+
The tool surfaces the most representative comments from the positive and negative groups — the ones that best illustrate the dominant themes, not necessarily the most-liked.
Can I see the themes behind each sentiment side?+
Yes — that's a core part of the output. You don't just get "40% negative"; you get the specific themes (e.g. "pricing complaints", "misleading title") driving the negative signal.
Can I track sentiment across a topic or multiple videos over time?+
This free tool analyzes one video at a time. veridive tracks sentiment trends across channels, topics, and the spoken web over time — so you can watch reception shift as a story or debate evolves.