Is this tool private?

Yes. All processing happens locally in your browser. No data is uploaded.

What extras does this tool have?

Extras: (1) Core function, (2) Batch mode, (3) Copy results, (4) Download, (5) History, (6) CSV export, (7) Custom options, (8) Validation, (9) Warnings, (10) Stats, (11) Multi-format, (12) Configurable, (13) Preview.

Audio Runs in your browser

Video Aspect Ratio Changer

Change video aspect ratio with crop, pad, and blur background modes. 100% private. 100% private.

100% Private Works Offline Instant

Source width

Source height

Target ratio

Mode

Detected source ratio: 16:9

Output dimensions

608×1080

Crop region

608×1080

Crop efficiency

32%

Relative size

0.32× source

Visual preview

Source 1920×1080

16:9

Target 608×1080 (crop)

9:16

Crop 608×1080 from center, scale to 608×1080.

Plan summary

Source: 1920×1080 (detected 16:9)
Target: 9:16 (crop)
Output: 608×1080
Crop region: 608×1080 at (656, 0)
Pad region: 608×1080 at (0, 0)
Crop efficiency: 32%
Pad waste: 0%
Relative size: 0.32× source
Crop 608×1080 from center, scale to 608×1080.

Privacy: all calculations run locally. Output dimensions are rounded to even numbers for video codec compatibility.

Change video aspect ratio with crop, pad, and blur background modes. 100% private. 100% private. Everything runs locally in your browser — your data never leaves your device.

How to use

Enter your input in the tool above.
Adjust any options to your preference.
Use the Copy or Download buttons to save the result.
Everything happens locally — your data never leaves your browser.

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