About Image Rotation and Straightening

Proper image alignment is crucial for professional photography, document scanning, and graphic design. Even slight misalignments can make images appear unprofessional or distract from the content.

How to Use This Tool

Upload an image using the file picker or drag and drop
Use the rotation slider for major adjustments (up to 180° in either direction)
Fine-tune with the straighten slider for subtle corrections (±10°)
Use the comparison slider to see before/after results
Download your processed image when satisfied

Common Use Cases

Photography

Correct horizon lines and straighten architectural photos

Document Scanning

Align scanned documents that were slightly crooked

Technical Reference

Rotation Angle	Canvas Size Increase	Quality Impact
90°, 270°	Dimensions swapped	None (pixel perfect)
45°, 135°	~141% of original	Minor interpolation
Arbitrary angles	Up to 200% of original	Bilinear interpolation

Frequently Asked Questions

Does this tool modify my original image?

No, your original file remains unchanged. All processing happens in memory and you download a new copy.

What image formats are supported?

All common formats: JPEG, PNG, WebP, GIF, and BMP. Export is available in PNG (lossless) or JPEG (compressed).

Is there a file size limit?

Processing happens in your browser, so limits depend on your device memory. For best performance, keep images under 20MP.

How does the straightening work?

Straightening applies a subtle rotation (up to ±10°) using high-quality bilinear interpolation to maintain image quality.

Rotate and Straighten Tool

Results

Before/After Comparison

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Rotate and Straighten Tool

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