Free TikTok Post Analyzer (+ Guide)

What is a TikTok post analyzer?

A TikTok post analyzer checks a video before you post it, or after, and shows what to change.

Most score against rules someone wrote, or ask an AI to guess. This one scores against what won: videos from the same account, posted within 30 days of each other, where one got at least twice the views of the other.

How the score works

The analyzer measures 25 parts of your video: its first line, its length, numbers, lists, "I" and "you", links, hashtags, mentions, pictures and more.

A model weighs each part by how often it won those matchups. Your score says where your video lands among all 1,645: 70 means it beats 70% of them.

How accurate it is

I tested it 5 times. Each time the model learned from 4 in 5 of the 62 accounts and was graded on the fifth, which it never saw, so every account was graded once.

Across those tests, the video it scored higher got more views 54% of the time, in 6,107 pairs where one video got at least twice the other's views. A coin flip gets 50%.

That's a hint, not a promise. The topic, the timing and the picture itself aren't in the score, and they matter more than the wording.

On TikTok, the video does most of the work. The caption decides less, which is why the accuracy is closer to a coin flip here than on text platforms like X or Threads.

What 1,645 TikTok videos show

In pairs of videos from the same account, where one got at least twice the views, this is how often the video with each part won:

The biggest winners: a how or why opener (59%), a number (56%) and a number in the first line (56%). The biggest losers: an ask (39%), "you" (40%) and "this" or "here's" (41%).

How long a TikTok caption can be

The TikTok character counter counts it the way TikTok does.

Read any video from its link

Paste a link to any public TikTok video, yours or anyone's, and the analyzer reads it for you: the caption, the cover, the views, likes, comments, shares and saves.

Then it reads the account's latest videos and compares. "4.1× this account's typical video" means the video got 4.1 times the median views of the account's recent videos.

That's the honest version of a virality score: not a guess about the wording, but how the video actually did against the account's own normal.

How to write videos that beat your usual

Here's what won most often in the data:

• Open with how or why. It promises an explanation. Videos with it won 59% of 852 pairs.
• Use a real number. "3 things" or "$10K" is more specific than "a few". Videos with it won 56% of 2,124 pairs.
• Open with a number. A number in the first line tells people what they'll get. Videos with it won 56% of 2,124 pairs.
• Add a video. A short clip earns a second look. Videos with it won 56% of 512 pairs.

And what lost:

• Drop the ask. Videos with an ask won only 39% of 861 pairs.
• Drop the exclamation marks. Videos with an exclamation mark won only 44% of 1,113 pairs.
• Try it without a picture. Videos with a photo won only 44% of 512 pairs.
• Tag people less. Videos with an @mention won only 46% of 1,177 pairs.

Then post, and let your own numbers decide. Paste the link back in after a few days to see how it did against your usual.

Show Your Work!

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by Austin Kleon

Show Your Work by Austin Kleon teaches how to share your creative process, build an audience, and get noticed without self-promotion.

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Where the data comes from

I read the latest public videos of 63 TikTok accounts: creators from my creator directory, the creators in my research feed, and well-known creators in business, writing, AI, health and money. My own accounts are left out.

Replies, reposts and videos under 3 days old are left out too, because their numbers are still growing. That left 1,645 videos.

The model learned from pairs of videos by the same account within 30 days, so the audience was the same and the wording was the difference. Each account was graded by a version of the model that never saw it. The videos themselves stay private: only the model's weights and counts are published.