Add your video or image
Choose a video, a screenshot, or a cover from your phone or computer.
Refract Creators / Safe zone checker
Free editing tool
Add a video, a frame, or a cover and see where each app’s buttons, caption, and username will sit on top of it. It runs in your browser, so nothing is uploaded.
Choose a video, a screenshot, or a cover from your phone or computer.
Switch between TikTok, Instagram Reels, and YouTube Shorts to see each app’s covered areas.
If text or a face sits under the buttons, move it toward the middle before you post.
Vertical apps put buttons and text on top of your video. A few habits keep the important parts visible.
The top shows tabs and search, the bottom shows your caption and username, and the right side has the like, comment, and share buttons.
Each app changes its layout now and then, and it differs from phone to phone, so treat the covered areas as a minimum.
Burned-in captions read best a little above the bottom quarter of the screen, clear of the app’s own caption.
Your profile grid crops Reels covers, so keep the title in the centre of the image.
If your text moves around, check a frame from each part of the video.
It’s the part of a vertical video that the app doesn’t cover with its buttons, caption, and username. Text and faces inside it stay visible.
No app publishes exact sizes for every phone. The areas here follow widely used creator guidance and are rounded up, so treat them as a minimum.
No. The checker opens your file in your browser and draws on top of it there. Nothing is sent to Refract or anyone else.
Any video or image your browser can open, such as MP4, MOV, WebM, JPG, PNG, or WebP.
Yes. No account, no watermark, and no limit.
Refract’s free caption generator puts what you say on screen and lets you place captions at the top, middle, or bottom.