Which caption style fits your video? Type a line and watch it play

A big share of vertical video plays with the sound off, and for those viewers the captions are not an accessory to the voice — they are the voice. The style they move in is the tone the video is heard in.

A single word slamming in at full width reads as urgency. A full line with one word lighting up reads as guidance. A small, steady line at the bottom reads as calm competence. Same sentence, three different speakers.

That is why previewing a style on somebody else's demo line tells you very little. The words carry the meaning and the style carries the delivery, and you can only judge the pair together.

The previewer above takes your own line and plays it word by word in five distinct styles, at three speeds, on a 9:16 stage — all in your browser, no account needed, nothing sent anywhere.

The table below is the shorthand: what each style signals, and the kind of video where that signal helps rather than fights.

Bold Pop puts one word on screen at a time, scaled in big and centred. Nobody can skim it: the viewer reads at exactly the pace you speak, which is why the pattern dominates direct-response ads. It makes a quiet sentence feel loud — and a weak sentence feel louder, so the line has to hold.

Karaoke keeps the whole line on screen and lights the spoken word as it lands. The viewer can read ahead, which suits explanation: they always know where the sentence is going, and the moving highlight keeps them anchored to the voice.

The clean lower-third is the broadcast move: small, steady, at the bottom of the frame. It never competes with the footage, which makes it the right choice when the footage is the argument — a demo, a walkthrough, a founder talking straight into the lens.

The two-word stack shows punchy pairs, stacked and bold. It sits between the pop and the karaoke line: more rhythm than a full sentence, more context than a single word. Two words is also about what fits comfortably at a large size in a 9:16 frame.

Outline Shout is all caps with a heavy dark outline. The outline is not decoration — it is what keeps white text readable over a bright sky, a white shirt or a busy street, which is why the style owns reaction clips and street interviews.

Play your line in all five before committing. The mismatch between a style's register and what the sentence actually says is usually obvious within one run.

Ask an editor for Hormozi captions and you are asking for the Bold Pop pattern: one word at a time, big, bold, centred, timed hard to the voice — the look Alex Hormozi's clips pushed into the mainstream of short-form advertising.

The mechanic underneath is pacing control. When only one word exists on screen, the viewer cannot skim, cannot read ahead, cannot half-watch. Their reading speed becomes your speaking speed for the whole video.

That grip is why the pattern converts on hooks and hard claims, and why it exhausts on longer explanations. Thirty seconds of one-word slams is a pitch; ninety seconds of them is a strobe light.

It is also a claim about energy, and the claim has to be true. A considered skincare brand shouting one word at a time is wearing a costume; the calm lower-third fits what that brand is actually saying.

Type your opening line above, switch to Bold Pop at the fast speed, and you have an honest Hormozi-caption preview of the sentence you would actually say — which settles the question faster than watching anybody else's example reel.

The fonts here are your device's. TikTok, Instagram and every editor render captions with their own type, weights and smoothing, so treat what you see as an honest preview of movement, size, pace and placement — not of exact pixels. The previewer says this on its own face, because a tool that oversells its output is a tool you stop trusting.

Placement matters more than most people expect. Every feed app draws its interface over the bottom of the frame — the caption line, the audio attribution, the action buttons — and a caption parked in that zone gets covered. The checker at /tools/safe-zone-checker shows those zones on your own footage, also without an upload leaving the browser.

The timing here is a steady clock: every word gets the same slice of time at the speed you pick. Real speech is not steady — you lean on some words, rush past others, and leave pauses that carry meaning.

That gap is exactly what transcript timing closes. When captions are placed from the actual audio, each word appears the moment it is spoken and the emphasis lands where your voice put it.

So use this page for the decision it is good at: which register fits your line, at what size, at what pace. The clock-perfect version of that register comes from an edit timed to a real take.

Cutroom starts where this previewer stops. Film one take of up to three minutes on your phone, upload it, and it comes back as a finished 9:16 video: cut, covered with footage, and captioned word by word from the transcript of your own audio.

Six caption packs ship in the editor — including a two-word DuoStack in the same family as the stack you just previewed — and switching the caption style, colour, weight, size and position is one control, not a re-edit.

Emphasis becomes a decision instead of an accident: mark the word your claim turns on and it pops in the captions. Fix a mis-heard word in the transcript and the caption is already right.

The pricing is one sum. A batch is 100 credits and the export is 20 credits per output minute, so a 60-second finished video comes to about 120 credits.

Three finished videos are free inside your first seven days, no card, on the 600 credits granted at signup, and they export with a Cutroom mark across the middle. Lite is $19.99 a month for 1,250 credits — about ten finished one-minute videos, more when they run shorter — and cancelling is one click.