Change video resolution (1080p, 720p)
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The world isn't 16:9 anymore. Here is how I resize my videos to fit the specific needs of Instagram, TikTok, YouTube, and the mobile web without losing the focus of my story.
I’m a creator who works across multiple platforms. I might shoot a long-form tutorial for YouTube (horizontal), but then I want to share a "highlight" from that tutorial on TikTok (vertical) and a teaser on Instagram (square).
For a long time, this was a nightmare. I’d have to open a heavy video editor, create three different projects, and spend hours manually adjusting the frame.
This is the Screen Friction Problem. Our content is horizontal, but our attention is increasingly vertical.
This is why Video Resizing is the most frequent task in my social media workflow.
It’s about making your content look "native" wherever it lands.
Your videos are your intellectual property. Whether it's a private interview, a behind-the-scenes look at your process, or a personal vlog, you shouldn't have to sacrifice your privacy to get a 9:16 aspect ratio.
Most "free" online resizers are data-mining operations. They want your videos on their servers so they can track trends and build user profiles.
That’s why this tool is built to be a private studio.
By using WebAssembly, we’ve brought the same professional-grade FFmpeg engine directly into your browser tab.
If you’re converting a horizontal video to vertical, don't just "Center Crop." Look at the action. If your subject is on the left side of the frame, use a custom crop to ensure they stay in focus. Our tool gives you the precision to ensure your story is always front and center, no matter the screen size.
Stop letting aspect ratios box in your creativity. Resize your world, keep your privacy, and make your content fit the moment.
Intelligent Aspect Ratio Presets: Instant profiles for 9:16 (Vertical), 1:1 (Square), and 16:9 (Widescreen).
Custom Dimension Control: Set your exact width and height for specialized web players.
High-Fidelity Scaling: Resizes your video while maintaining the sharpness and color of the original.
100% Local Processing: Your private videos never leave your browser.
Select your video file (it stays local in your browser).
Choose your target aspect ratio or enter your custom dimensions.
Click 'Resize'—our engine will handle the 'Scaling Math' instantly.
Download your perfectly fitted video and share it with the world.
Platform Perfection: Ensure your content looks native whether it's on a desktop or a phone screen.
Engagement Boost: Vertical videos get significantly more views on mobile platforms like Reels and TikTok.
Better SEO: Optimized video sizes load faster and improve your site's performance scores.
Total Privacy: The safest way to handle your personal or proprietary video data.
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Unlike other websites, we do NOT upload your files to our servers. All processing happens securely inside your device (browser).
Context is everything. A video shot on a high-end camera (16:9) will have giant black bars when viewed on a phone. Resizing ensures your content fills the screen, making it more immersive and professional for your audience.
No. Our tool is designed to maintain the original aspect ratio or use smart cropping to ensure your subjects don't look 'squashed' or 'stretched.' You get a natural, professional-looking result every time.
Absolutely. Our tool runs 100% in your browser. We don't have a server that 'sees' your video. Your data stays in your browser's memory and is never uploaded to a cloud. It's the most secure way to reformat your work.
Yes! Since the processing happens locally on your computer, we aren't limited by server upload caps. As long as your browser can handle the file size, our tool can resize even your heaviest footage.