Add editable captions to your rap video
Draft caption timings, check each line, and export an MP4 or SRT.
Updated October 26, 2026 · RapMeme
1. Choose a video
Choose an MP4 or WebM up to 40 MB, open a completed project clip, or try the demo. The standalone editor processes the file on this device. Export uses the first 15 seconds, or the whole clip when shorter. Local editing and export do not use generation credits.
2. Create draft timings
Type the words you actually hear, with one short caption per line. Create draft timings to distribute those lines evenly across the clip. This is a starting point, not speech recognition or word-level alignment. Full song lyrics can be longer than the excerpt, so only include the words in your chosen clip.
3. Caption style
Play the video and adjust each start and end time in seconds. Captions must be in order, must not overlap and must finish within the clip. Choose Clean, Bold or Highlight, then check the preview in the export format. Long lines may be wrapped; keep wording short enough to read on a phone.
4. Export captioned MP4
Export a captioned MP4 in a browser with compatible H.264 video encoding. Keep the tab open until the download is ready. If your browser or source codec cannot export, download the SRT and use it with the original video in your usual editor. Draft text and timing are saved on this device, so reselect a local source file when returning.
If something goes wrong
If export is unavailable, use a browser that supports H.264 encoding or download an SRT for another editor. Keep each caption within the clip, in time order, with no overlaps. Caption edits change the text on screen, not the recorded vocals.
Make captions readable on a phone
Keep each line short, check the timing against the audio and preview the result before export. Avoid assuming that evenly spaced draft timings match the words: they are a starting point, not automatic transcription.
If MP4 export is unavailable
Video export depends on the browser and the source codec. Download the SRT and use it with your original video in another editor if MP4 export is unsupported.