How to Go Viral on TikTok

Captions, rewritten

Three ways to shoot it again

Covers that fix the diagnosis

The video itself

Live trends, five sources

Forecast vs. reality

To go viral on TikTok you need three things: a hook that lands in the first second, watch time that holds to the end, and early shares. The TikTok algorithm tests every post on a small audience first — if retention and shares are strong, it pushes the post into bigger For You feeds. Our AI checker scores your actual video or photo on exactly those signals before you post, so you fix the weak one instead of guessing which it was.

No tool can guarantee virality, and anything that promises it is selling you something. What is measurable is the thing the algorithm measures: hook strength, watch-through, visual impact, caption, hashtag targeting, and trend fit. The checker scores each 0–100, forecasts a view range, and names the single weakest link. When you post, you can track the real numbers against that forecast to see how close it was.

Both. Upload an MP4, MOV or WebM and the AI watches the actual clip — the cut rhythm and the audio, not just stills — and returns a predicted retention curve showing where viewers drop off, plus the average watch percentage. Photos and carousels are scored on the same six signals minus the video-only ones.

Almost always in the first two seconds, and almost always because the opening frame gives away too little or too much. The report draws your predicted retention curve and marks the steepest drop after the opening, so you know which second to re-cut rather than re-shooting the whole thing.

Yes, and this part costs no credits. Every report arrives with recommended hashtags, a ready-to-post caption, a critique of the caption you wrote, and rewritten alternatives that each take a different angle. It also gives you three ways to shoot the post again: one riding a live trend, one filling a gap nobody is covering, and one doubling down on what already works.

Yes. From your video's first frame or your photo, it generates three covers — one for each weakness the report diagnosed, each labelled with the problem it fixes. People, pets and places stay as they are; only the presentation changes. Cover generation uses 3 credits, and everything you generate is kept in Studio.

3–5 niche hashtags is the sweet spot. Hashtags tell the TikTok algorithm what your post is about so it can match it to the right For You feeds. Stuffing 20 broad tags dilutes relevance and competes you against accounts far larger than yours.

Post when your own audience is online — typically 6–10pm local time on weekdays and late morning at weekends. The first hour carries the most weight, because early watch time and shares are what the algorithm uses to decide whether to widen the next wave.

You get 3 full AI analyses free when you create an account, and captions, hashtags and reshoot ideas stay free after that. A free account is required before the first real analysis, because your reports, tracked posts and generated files are saved to it. After the free runs, an analysis costs 1 credit.

Yes. The same checker scores Instagram Reels, photos and carousels, and posts on X, each against that platform’s own benchmarks rather than one generic standard. See the guides on how to go viral on Instagram and how to go viral on X for the platform-specific playbooks.