Prepare video for TikTok

Fit any video to TikTok's vertical 9:16 frame in your browser. Blurred or black bars, keep the sound, nothing is uploaded anywhere.

Drop your files here

.mp4, .mov, .mkv, .webm, .avi, .m4v · up to 200 MB

Choose files

How to Convert for TikTok

1
Add your video
MP4, MOV, MKV, WebM or AVI, up to 200 MB and five minutes. Landscape, square or already-vertical footage all work.
2
Pick blurred or black bars
Blurred is the default and matches how TikTok itself fills the frame; black bars are the plain alternative, with any colour you want.
3
Click Convert and download
The result is a single MP4, 1080×1920, ready to upload from the app or the website.

Why 1080×1920, not just 'vertical'

TikTok's own camera and player are built around a 9:16 frame at 1080×1920 pixels, and content that doesn't fill it gets pillarboxed or cropped unpredictably by the app itself. This tool does that fitting deliberately instead: horizontal or square source video is scaled to fit inside the frame without any stretching, because a stretched face reads as a mistake in the first half-second of a video, which is exactly when people decide to keep scrolling.

Blurred bars versus black bars

When the source doesn't already fill 1080×1920, the leftover space has to be filled with something. A blurred, stretched copy of the same frame sitting behind the sharp video is the closer match to how TikTok, Reels and Shorts fill their own frames, and it reads as intentional rather than as an error. Plain black bars are the simpler, faster alternative, and the colour is yours to set if black doesn't match your brand.

Quality levels and an exact target size

Three quality levels, light, balanced and strong, cover most cases. They are expressed as bits per pixel per frame, so the same setting looks comparable on any source resolution, and balanced is a sensible default for most footage. If a size limit matters more than a quality label, because of an upload cap, a messaging app or a slow connection, typing a target size in megabytes switches the tool to encode-and-measure: it computes a bitrate from your number, checks the result, and adjusts across up to three passes rather than guessing once and hoping.

Frame rate and sound

Anything shot above 30 frames per second is brought down to 30, since TikTok's typical viewing doesn't show a difference above that and the extra frames only add weight. Audio is kept and re-encoded at your chosen bitrate, 128 kbps for most videos or lower if the file needs to be as small as possible, and the option disappears for silent source clips.

Made for TikTok on your device

Reading the file, drawing the 1080 × 1920 frame with a blurred or plain fill and encoding the result all happen on your device, with the video encoder built into your browser. Nothing is uploaded until you post it yourself, there is no account, and closing the tab clears everything.

Frequently asked questions

What resolution does TikTok need?

1080×1920 pixels, a 9:16 vertical frame. That's the fixed target this tool produces regardless of what shape your source video is.

Why blurred bars instead of black?

A blurred, stretched copy of the same frame behind the sharp video is the fill TikTok, Reels and Shorts use themselves, and it looks like a deliberate choice rather than empty space. Black bars are offered as the plainer, faster alternative.

What are TikTok's current limits on length and file size?

As of 2026 the numbers we've seen are up to 10 minutes for most accounts (60 for some), and up to 4 GB uploaded from a computer, but platforms change these without much notice, so treat this as a rough guide and check TikTok's own help pages before you rely on it. This tool's own browser limit, 200 MB and five minutes, is stricter anyway.

Does converting for TikTok reduce quality?

Any re-encode is lossy to some degree, but the quality levels here are tuned to keep that close to invisible on ordinary footage. TikTok itself also re-compresses everything on upload, so a small amount of loss here won't be the limiting factor.

Does my file get uploaded to a server?

No. Everything runs in this browser tab using your device's own video encoder. The file never leaves your computer.

Why do I need Chrome 94+ or Safari 26+?

The tool relies on WebCodecs, the browser API that encodes H.264 video. Older browsers and some mobile browsers don't have it, and the page tells you plainly if yours doesn't rather than failing partway through.

Can I target an exact file size?

Yes. Type a number of megabytes instead of picking a quality level, and the tool works out the bitrate and checks the result across a few passes. If your number is smaller than the video can reach, it tells you the smallest size available instead of producing an unwatchable file.