Video Aspect Ratio Converter
Fit a video into a new aspect ratio without stretching it.
No signup · Local processing · Free download
No signup. No watermark. Your video stays on your device.
How to use the video aspect ratio converter
- Choose a video and a target aspect ratio.
- Select Fit to keep the whole frame, or Fill to crop the edges.
- Export and download the resized MP4.
Choose a target ratio for your video. Padding preserves the full frame without distortion; use the video cropper if you want to remove the edges instead.
No account or email is required. Your input stays on your device. Save your result before you close the page.
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Video Aspect Ratio Converter: questions and answers
Should I fit or crop my video?
Fit adds black bars and keeps all of the original picture. Fill crops from the center to cover the output frame. Use the video cropper when you need control over which area stays visible.
How do I use the video aspect ratio converter?
Choose a target ratio for your video. Padding preserves the full frame without distortion; use the video cropper if you want to remove the edges instead.
Is this tool free to use without signing up?
Yes. Open the tool and use it without an account, payment, or email address. Downloads are available directly from the tool.
Are my files uploaded to a server?
The tool processes your files and inputs on your device. Media processing libraries may download on first use, but your source files are not sent to a conversion server.
Does it work on a phone?
The controls fit mobile screens. Video exports need available memory and can take longer on phones. For large files, use a desktop browser and keep the tab open until export finishes.
Turn your next recording into a polished demo.
Get smart zoom, cursor effects, and 3D device frames in SmoothCapture for Mac. Record and edit free; a license is required to export.
