Vertical 1080×1920 · TikTok · Reels · Shorts — Free, No Upload
The 9:16 aspect ratio is the native shape of every full-screen vertical feed: TikTok, Instagram Reels, YouTube Shorts, Snapchat Spotlight and Facebook Stories. This page explains exactly what 9:16 means, how to convert a landscape or square video into it, and how to do it without uploading your file anywhere.
Reframe any video to a clean 9:16 vertical frame in your browser — no account, nothing stored on a server.
Open the TikTok Video Converter →An aspect ratio describes the relationship between width and height. 9:16 means that for every 9 units of width there are 16 units of height — a tall rectangle, the opposite of the 16:9 widescreen used on televisions and YouTube's landscape player. In pixels, the standard is 1080 × 1920, which is Full HD turned on its side. Lighter alternatives are 720 × 1280 and 540 × 960, useful when you want smaller files for slower connections or quick drafts.
Because phones are held upright, a 9:16 clip fills the entire screen with no wasted space. That full-bleed presentation is a ranking and retention factor on short-video platforms: a video that already matches the feed feels native, loads edge to edge, and avoids the shrunken, bar-framed look that signals a re-posted landscape clip.
A horizontal source cannot become vertical without a decision about what to do with the mismatch. There are three honest options:
Cover (crop to fill). The footage is scaled up until it covers the whole 9:16 frame, and the overflowing left and right edges are cropped away. This gives a true full-screen result with no bars, at the cost of losing the sides. Choosing a crop focus — center, top or bottom — lets you keep the subject in frame.
Contain (fit with bars). The entire frame is preserved and the empty space above and below is filled with a solid color you choose. Nothing is cropped, but the video occupies a band in the middle. This suits screen recordings, slides or anything where every pixel matters.
Blurred background. The whole frame is kept, centered, and the empty space is filled with an enlarged, blurred copy of the same footage. It is the most popular style for reposting landscape clips because it looks intentional and keeps the screen full of motion and color.
The converter loads your file into a hidden video element, then redraws each frame onto a 1080 × 1920 canvas using the fit mode you picked. The canvas is captured as a live stream and re-encoded with the browser's MediaRecorder, producing a real WebM or MP4 file. Nothing is sent to a server — the conversion runs on your own device, which is why it works even offline once the page has loaded.
The standard is 1080 × 1920 pixels (Full HD vertical). Smaller options are 720 × 1280 and 540 × 960. All three keep the same 9:16 shape; only the level of detail and the file size change.
Use Cover mode. It fills the vertical frame and crops the sides instead of adding bars. Set the crop focus to keep the subject — Center for general footage, Top for talking heads, Bottom for gameplay or captioned content.
Yes. Choose Contain to add colored bars, or Blurred background to fill the gaps with a blurred copy of the footage. Both keep 100% of the original frame on screen.
It is free, with no watermark and no signup. Processing happens entirely in your browser, so your video is never uploaded.