Video Resolution Converter

Supports online resolution conversion for multiple video formats, offering common presets and custom resolution options, with batch processing while preserving video quality.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

Loading tool, please wait...

If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

Select videos first, then set the target resolution and output options. Confirm to process and download. For batch uploads, only the first 20 files are shown, but all videos in the queue will be processed.

Choose or drop video files

Supports common videos such as MP4, MOV, MKV, WebM, AVI, WMV, FLV, M4V, and TS.

Click to choose videos, or drag files here Files stay on this device and are not uploaded.

File queue

Showing first 20 only

Videos

0 B

Total size

Shown

Hidden

No video files selected.

Target resolution

Use a preset or enter a custom width and height.

Width (px)

Height (px)

Fit mode

Padding color

Size tips

Aspect Helper

Preview

Show fit mapping

1920 x 1080

Padding keeps the full frame; cropping fills the target size; blurred background works for portrait-to-landscape or landscape-to-portrait.

Output & Encoding Settings

Save common settings before batch processing.

Output Format

Video Quality

Encoding Speed

Frame Rate

Audio Processing

Audio Bitrate

ZIP Filename

MP4 Playback Optimization

Processing engine

Keep some metadata Compress ZIP Add report to ZIP Auto-fix to even dimensions

Output files use the original name by default; when the format changes, only the extension is replaced. Duplicates get a number added.

Confirm and start

Before starting, confirm the resolution and output settings are complete.

Pending

Target size

1920 x 1080

Output Format

MP4

Results

Complete the settings before starting.

Result preview

Show first 6

Video previews will appear here after processing.

Instructions

Software Usage Instructions

Select video files: Click the “Select video files” button, or drag videos into the file area. Common video formats such as MP4, MOV, AVI, MKV, WEBM, WMV, FLV, M4V, and TS are supported, and you can select multiple files in batches.
View the file queue: After import, the number of videos, total size, and previews of the first 20 files will be displayed. If there are more than 20 files, the interface will show only some of them, but all videos will still be processed when processing starts.
Set the target resolution: You can directly select presets such as 4K, 2K, 1080p, 720p, 480p, 360p, vertical, or square, or manually enter the video width and height.
Select the video fitting mode:
- Fit proportionally and add padding: Keep the full image and fill the remaining area with a background color.
- Fill proportionally and crop: Fill the target size; edges may be cropped.
- Stretch to target size: Stretch directly to the specified width and height, suitable for scenarios where aspect ratio requirements are not strict.
- Fit proportionally with blurred background: Keep the main image and fill blank areas with a blurred background.
Configure output settings: Select the output format, video quality, encoding speed, frame rate, audio processing method, and audio bitrate. For commonly used settings, click “Save settings”; they will be automatically restored the next time you open the tool.
Start conversion: Go to the “Process & Download” page, confirm the target size and output format, then click “Start resolution conversion”.
Download results: After processing is complete, you can preview the first 6 results, download an individual video, or click “Download all results ZIP” to get all converted video files.

FAQ

A: Common video formats such as MP4, MOV, AVI, MKV, WEBM, WMV, FLV, M4V, and TS are supported. The output format can be MP4, WebM, MOV, or the original extension will be kept as much as possible.

A: Padding keeps the full image and fills blank areas with color; cropping fills the target size but may cut off edge content; stretching directly changes the video to the target width and height, which may change the aspect ratio.

A: Yes. You can select multiple video files at once. The interface only displays the first 20 files, but all files will be processed in the queue during conversion, and the results will be packaged as a ZIP for download.

A: The original file name is kept by default. If the output format changes, only the extension is replaced. If multiple results have the same name, a number will be automatically appended to the file name to avoid overwriting each other.

A: No. Video reading, resolution conversion, and ZIP packaging are all completed on the current device. The original video files will not be uploaded to the server.

A: When the target resolution is higher than the original video, or when higher quality settings are selected, the file size may increase. If you want to reduce the size, choose a lower resolution, a smaller file size quality option, or WebM output.

A: Large videos use more memory and processing resources. We recommend lowering the target resolution or quality, reducing the number of files in a single batch, closing other resource-intensive programs, and then trying again.