Quick Summary:
Video aspect ratio is a significant concept in digital video creation. There are some reasons why you need a video aspect ratio converter. In most cases, there is a recommended aspect ratio for posting on social media. If you do not want to distort your video, you have to alter it accordingly. Plus, it is important to display your videos properly on various devices. This article shares the top 6 best tools to meet your needs.
| Aspect Ratio Converters | Supported Formats | Processing Speed | Watermark Presence | Maximum Resolution | AI Support |
|---|---|---|---|---|---|
| AnyMP4 Video Converter Ultimate | MP4, MOV, MKV, AVI, 500+ multimedia formats. | Fast | No Watermark | 4K/8K UHD | AI Video Upscaling and Auto Reframe |
| Shutter Encoder | MP4, MKV, ProRes, other FFmpeg formats. | Fast | No Watermark | 4K | No AI |
| Openshot | MP4, MOV, AVI, MKV | Moderate | No Watermark | 4K | No AI |
| iMovie | MOV, MP4, ProRes | Fast | No Watermark | 4K | No AI |
| CapCut Desktop | MP4, MOV, MKV, AVI | Moderate | Watermark in Free Version | 4K | Advanced AI Tools (Paid Version) |
| AnyMP4 Free Video Converter Online | MP4, MOV, MKV, AVI, 200+ multimedia formats. | Slow-Moderate (Based on Internet Quality) | No Watermark | 1080p | No AI |
| FileConverto | MP4, MOV, MKV, AVI | Moderate | No Watermark | 1080p | No AI |
| Clideo | MP4, AVI, MOV | Slow-Moderate (Based on Internet Quality) | Watermark in the Free Version | 4K | No AI |
How We Tested Each Tool
PROS
CONS
AnyMP4 Video Converter Ultimate is a well-known video editor and video aspect ratio converter for PC and Mac. It provides two ways to alter the aspect ratio of your videos in various situations. Moreover, it is equipped with a powerful hardware-acceleration feature optimized for NVIDIA, AMD, and Intel chips, delivering 30x faster export speeds than other multimedia tools. Converted videos in it will also undergo lossless conversion to preserve their aspect ratio and quality.
How to Change Video Aspect Ratio on PC
1. Open videos
Run the best video aspect ratio converter once you install it on your PC. There is another version for Mac. Click the Add Files menu in the upper-left corner and select Add Files or Add Folder to import the target videos you want to edit. The former adds specific videos, while the latter opens all videos in a single folder.
2. Change aspect ratio
After the video loads, you will see the videos in the main interface. Click the Edit icon under the first title to open it in the video editor window. Move to the Crop section, pull down the Aspect Ratio, and select a proper one. If you wish to change the video aspect ratio manually, just move the crop box until you are satisfied with the result. To use the same aspect ratio for all videos, click Apply to All. Hit OK to confirm.
3. Save videos
When you go back to the main interface, set a destination folder in the Save to field. You can also convert the video format using the Convert All to option in the upper-right corner. Finally, click on the Convert All button to save the videos with the proper aspect ratio.
To make the aspect ratio adjustment faster and easier to apply, you may also compress the video before cropping.
PROS
CONS
When looking for an open-source, FFmpeg-based video editor, ShutterCoder is a good option if you already have intermediate-to-advanced video editing skills. The program was designed for letterbox editing and aspect ratio adjustments without re-encoding. This makes it suitable for editors who prioritize quality. However, it still gets the job done despite it not being advisable for beginners.
How to Change Video Aspect Ratio in ShutterCoder
1. Open ShutterCoder and then select the Choose Function option. Then select H.264 in Output Codecs to open more advanced video editing tools.
2. Once you have access to the video editing options, select Cropping. Then, choose among the available Pre-settings, which include 4:3, 1:1, and 9:16 aspect ratios.
3. With the aspect ratio now set, click on Start Function to begin exporting the video with the applied aspect ratio and crop settings.
You may use the Crop and Scaling features together to improve the quality of your file adjustment.
PROS
CONS
OpenShot is an open-source video editor, so everyone can access all its features for free. In addition to video recording and editing, it also lets you adjust aspect ratios, frame rate, audio, and more. The software’s Real-time Preview is its most notable feature, working alongside its keyframe-based editing tools.
How to Adjust Video Aspect Ratio in OpenShot
1. Download and install OpenShot on your desktop. Add a video you need to adjust the aspect ratio for.
2. Click the Export Video button on the top left menu bar. Then, click the Advanced tab. You can select the aspect ratio from the drop-down list next to Profile.
3. Click the Export Video button to export the video with the adjusted aspect ratio.
You may use the Transform tool for video scaling alongside the cropping tool.
PROS
CONS
iMovie is a video aspect ratio converter for Mac. As the built-in video editor on Mac, it is the easiest way to alter the aspect ratio without installing or paying for it. Plus, it provides basic video editing features. However, make sure that it crops video by default in 16:9, and you need the Crop to Fill function for 9:16 and 4:3 options.
How to Set Video Aspect Ratio in iMovie
1. Open iMovie on your Mac and import a video. Click Create New and then select Movie to create a new project.
2. Import a video by clicking the Import button in the upper left corner of the workspace. Drag the imported video from the Library section to the Timeline.
3. Click the File button and enter Project Properties. Then, you can pull down the Aspect Ratio list and set the aspect ratio for your video.
4. Finally, click OK to save the changes.
iMovie lacks a 9:16 aspect ratio preset. You have to manually adjust the crop tool for vertical video.
PROS
CONS
Similar to its mobile counterpart, its PC version, CapCut Desktop, is also driven by AI tools, and it uses aspect ratio editing with background blurring to convert 16:9 to 9:16. This option is designed for native TikTok exporting since it is also equipped with automated subject tracking, making it best for short-form creators.
How to Edit Aspect Ratio in CapCut for Desktop
1. Open CapCut Desktop and then click on the Create Project option. Wait for the editing UI to load.
2. In the editing timeline, select Import to add the video you want to crop. Then drag it to the editing timeline.
3. On top of the editing timeline, select the Crop tool and then choose the Aspect Ratio presets you want to use.
You may still apply crop adjustments to CapCut videos using templates.
PROS
CONS
AnyMP4 Free Video Converter Online is a free, easy-to-use aspect ratio converter with a user-friendly interface. It supports customizing the aspect ratio as you need. It can also convert over 200 file formats. In addition, it allows you to customize the output parameters, including video encoder, frame rate, video bitrate, audio channel, etc. Unlike other online tools, videos edited in the software are completely private without any signup needed. Edited videos in it will also undergo auto-data deletion to protect user privacy.
How to Change Video Aspect Ratio in Free Video Converter Online
1. Access the online aspect ratio converter and upload a video by clicking the Add File button.
2. Select an aspect ratio from the drop-down list next to Resolution. Here you can set it as 1:1, 9:16, 4:3, 21:9, 5:4, 3:2, etc. Besides, you can click Customize to set the custom resolution.
3. Finally, click Save to download the video with the new aspect ratio.
Online tools are best used when you are short on time.
PROS
CONS
FileConverto is an online video aspect ratio converter. It offers a variety of social media presets, including YouTube, Instagram, and more. That makes it a good option to retouch your videos before posting. Among its competitors, it is also the lightest. This keeps it highly compatible with low-spec PCs and old browsers.
1. Visit the FileConverto website using a web browser.
2. Select a video file by clicking Browse. Then, set the new aspect ratio by clicking the drop-down menu. Here you will see the aspect ratios (e.g., 1:1, 16:9, 4:3, etc.) for media platforms such as Instagram and YouTube.
3. After selecting the new aspect ratio, click Submit Now to start the conversion process. After a few seconds, you will see a Download Now button. Click it to download the converted video with the new aspect ratio.
The program’s crop tool is not as accurate. As such, it is advisable to use a third-party tool for more precise editing.
PROS
CONS
Clideo is an online video editor and aspect ratio converter. It lets you upload a video and change the aspect ratio online. When it is done, you can download the new video or share it directly on social media. Its built-in social media presets make direct uploading very practical.
How to Set Video Aspect Ratio in Clideo
1. Access the online video editor and click Get started to enter the New project window. Click Upload to add a video.
2. Click the Canvas tab to set the aspect ratio. Here you can view 8 options, such as 1:1, 9:16, 16:9, 4:5, 2:3, etc.
3. After selecting, click the Export button to save the video with the new aspect ratio.
Take advantage of the built-in presets for specific social media sites.
Is changing the aspect ratio the same as changing the dimensions of a video?
No, aspect ratio is the ratio between width and height. Once you change the video aspect ratio, the dimensions may vary accordingly or not.
What is the best aspect ratio?
Sometimes, the composition dictates the aspect ratio. If you are shooting a landscape in horizontal orientation, then a 3:2 aspect ratio is the best choice.
What is the aspect ratio of a DVD?
There are two aspect ratios supported by DVD: 4:3, also called Normal or Full Size, and 16:9, also called Wide Screen. Both aspect ratios use the same picture size; however, the image is horizontally compressed on DVD and then stretched by the DVD player to 16:9.
What is the best free TikTok aspect ratio converter without a watermark?
All of the programs in this article are solid for the TikTok aspect ratio. For PC, we recommend AnyMP4 Video Converter Ultimate. On mobile, CapCut templates are a safe choice.
How can I change a 16:9 video to 9:16 without stretching the image?
You need to use aspect ratio editing. This can be done via video cropping tools. Make sure to avoid stretching to prevent distortion.
Does changing the aspect ratio reduce video quality?
No, it does not. Aspect ratio simply crops the videos; it will not affect the quality itself. You can safely adjust the aspect ratio without worrying about quality.
How to convert a landscape video to a portrait online for free?
AnyMP4 Free Video Converter Online should be your go-to. Unlike other online tools, its security services are superb. Files uploaded to the program will be deleted immediately after the adjustment is applied.
Although video editing is not easy, you can change the aspect ratio with the converters we shared in this article. Some of them are free to use, like iMovie, while others require payment. If you have many videos or need to change aspect ratios regularly, AnyMP4 Video Converter Ultimate is the best choice. Its versatile and accurate aspect ratio presets are a perfect option for lossless video editing.
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Updated by Mark Cristobal to Edit VideoRelated Articles
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