What does Add Text to Video do?
Use timed burn-in for a speaker name, title or callout that must appear without subtitle support. Positions and offsets use source pixels. The renderer fills sparse picture intervals and exports at 30 fps, while the representative preview samples the middle of the text interval.
How to use Add Text to Video
- 1Upload a video and enter the overlay text.
- 2Set the start and end time, font size, position and box settings.
- 3Render a frame preview at the midpoint of the text interval.
- 4Export MP4, review playback and download.
Supported inputs and outputs
Inputs
MP4, MOV, WebM and browser-decodable video
Outputs
MP4 with burned-in text
Practical uses
- Prepare and review a creator recording with add text to video.
Browser and media limitations
- Processing is local; burned-in text cannot be switched off and export re-encodes the video.
- Large files can exceed browser memory. Playback and codec support differ by browser.
How local processing works
Your media is processed locally in your browser and is not uploaded to Tubelexity for processing. Page requests, engine downloads and privacy-filtered analytics still use the network.
Frequently asked questions
Can viewers turn the text off?
No. Burn-in becomes part of the video pixels. Use a subtitle file if viewers need selectable captions.
Are system fonts used?
No. The renderer loads bundled Noto Sans subsets. Some scripts and emoji are not covered and may render as missing glyphs.
What does the frame preview show?
It uses the export renderer at the midpoint of the selected text interval. Render again after changing settings.
Will sound be preserved?
The first audio track is kept and encoded as AAC when present. The video is re-encoded to H.264.