Resize Video for TikTok Online Directly in Your Browser
Fit any clip to TikTok's 9:16 format right in your browser. There are no slow uploads, no waiting in queues, and no apps to install. Convert widescreen or square videos into full-screen vertical clips without losing quality.
Over 1 million creators use Flixier every day including brands like:
How to resize video for TikTok:
Change Video Layouts for TikTok Instantly
Turn Videos into Shorts
Make horizontal videos fit mobile screens perfectly. Use our video resizer to change your widescreen videos into a full-screen vertical layout. This helps you catch more eyes on social feeds.
Resize Videos Locally
Forget about slow internet speeds. Flixier processes your files directly on your device, meaning your videos never leave your computer. You can resize for Instagram or TikTok with no size limits.
Make TikToks Fast
Get your content ready for mobile feeds in record time without paying anything. Turn your landscape clips into vertical posts or adjust your framing quickly for free right in your browser with our on-page tool.
Continue Editing in Flixier
Go to the full Flixier editor to cut out bad takes or silences before you share your work. Use Flixier to easily add captions for TikTok and boost engagement, or fully edit videos for TikTok by trimming long clips and adding sound effects and transitions.
Everything you need to create
and finish AI videos
Who this is for

Marketers
Change horizontal campaign videos into vertical ads. Keep your promotions looking sharp on smartphone screens to get more people to click and buy your products.
See How It WorksEducators

Business Owners

Social Creators

Still have questions?
We got you!
How do I resize a video for TikTok?
To resize your video, drop your file into our tool right in your web browser. Select the vertical 9:16 layout preset to make it fit phone displays perfectly. You can trim the length, add text, and save the video to your device.
What is the correct TikTok video size and ratio?
The right layout for TikTok is a vertical 9:16 aspect ratio, which uses a standard resolution of 1080x1920 pixels. This aspect ratio fills up the entire mobile phone screen so your viewers get the best visual experience.
Can I convert a landscape video to TikTok format?
Yes. You can load any horizontal or square video into Flixier and change the layout to vertical. Scale the clip up to fill the whole screen or add background borders to reuse widescreen footage easily.
Do I need to upload my video or install an app?
No. You do not have to download any heavy software or wait for slow uploads. The tool runs inside your web browser and processes everything on your computer, so there are no file size limits.
Can I edit my video before posting to TikTok?
Yes. Once you change the size of your video, you can use Flixier to trim out mistakes, cut the video short, or add text and captions. It lets you polish your clip before sharing.
