Make narrated captioned videos, remove & replace backgrounds, erase objects, upscale and enhance photos, transcribe audio, and convert files — all in one place, completely free.
⚡ Everything runs in your browser — your files never leave your device.
Why juggle 10 different subscriptions?
Type a topic → get a narrated, captioned video with stock footage, ready to post.
Cut out any subject, then drop in a color, blur, or your own photo.
Brush over any object, person, or text — AI removes it and fills the gap.
Turn small or blurry photos into crisp, sharp HD.
One click auto-fixes light, color, and sharpness.
Neural text-to-speech and accurate audio/video-to-text.
Convert, compress, merge and split — fast and private.
Auto, word-by-word karaoke captions in 16 styles.
No trials, no credit card, no watermarks on your work.
Your files are processed on your device, never uploaded.
No installs. Open a tab and go.
Replaces a stack of paid apps with one.
No signup. No payment. Just open it and make something.
✨ Open Castwright →