Edit captions with a live preview in your browser

Get the words right before styling

Start with a clip that has a transcript. Generating a transcript may require internet access, account access, and AI credits; check the app before sending media. The caption editor needs recognized words to offer phrase editing.

Read the transcript while listening. Correct names, specialized terms, and punctuation that changes meaning. Automatic transcription is a starting point, so do not assume an attractive caption style makes the words accurate.

Keep phrases and the preview visible

Open the caption editor for the selected clip. The phrase list and style controls sit alongside a dedicated caption preview, and the editor leaves the video preview visible. This helps you compare wording and appearance without repeatedly closing the panel.

• Fix one phrase, then listen to that passage again.
• Check a long phrase and a short phrase before applying your preferred size.
• Keep captions clear of faces, product details, and likely interface overlays.

Compare word effects with a purpose

Try a restrained highlight before stronger effects such as karaoke, reveal, typewriter, or one-word display. Choose based on readability during speech rather than the most animated still image. A rapidly changing effect can make a technical explanation harder to follow.

Adjust the font and background opacity against both light and dark shots. Phrase transitions, including cut or fade, change how one phrase gives way to the next. Check the transition at a real speaking pace and watch for distracting flashes.

Use this caption review exercise

Illustrative phrase: “Open the project, select the clip, and review the result.” Compare a simple highlight with a one-word effect. Ask whether a viewer can follow the instruction without losing the action shown behind the words.

Then test a phrase containing a name and a number. Correct the text first, inspect the timing, and replay the join into the next phrase. The exercise is a manual quality check rather than a claim about engagement or watch time.

Verify the final file

Export a short passage containing the longest caption and at least one transition. Download the MP4, play it outside the editor, and check spelling, timing, contrast, and placement at the size your audience will use.

Browser support, source media, and plan access can affect generation and export. If you also create on iPhone, use the iPhone caption guide for that interface; browser instructions are specific to the web editor.