Add Text to Video
Burn custom titles or captions onto a video at a chosen time — in your browser.
選擇音訊或影片檔案
MP3、WAV、M4A、MP4、MOV、WebM —— 用 Whisper 在瀏覽器中轉錄
點擊選擇，或將檔案拖曳至此
如何 Add Text to Video
- 1
Add your video
Drop in an MP4, MOV or WebM — it's read in your browser, never uploaded.
- 2
Add your text
Type a line, set when it appears and disappears, and pick a position. Add as many lines as you need.
- 3
Burn in and download
Click Add text; the video is re-encoded with your text burned into the picture.
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Add Text to Video — 常見問題
Is my video uploaded?+
No. The text is burned into the video entirely in your browser.
How is this different from Add Captions to Video?+
That tool auto-transcribes speech with Whisper and times captions to what's said. This one is for text you type yourself — a title, a call-to-action — shown for whatever time range you choose.
Can I add more than one line of text?+
Yes — add as many lines as you need, each with its own start time, end time and position.
Which browsers work?+
Chrome, Edge and Safari 17+ — the burn-in step needs WebCodecs.
你們會把我的檔案上傳到伺服器嗎？+
不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。
有檔案大小限制嗎？+
我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。
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