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Bruno Dissenha7 min

How to crop photos online: ratios, dimensions, and export

Crop a photo by free area, aspect ratio, or dimensions, review the composition, and export a new copy in the browser.

PhotoEditor.Studio Crop panel with a crop area over the image
Automated capture of the real crop tool with a project fixture.

Cropping a photo online changes its visible area and final dimensions. PhotoEditor.Studio supports free crop, aspect-ratio presets, and entered width/height within the loaded image bounds.

When to crop and when to resize

Crop removes edge pixels to change framing. Resize keeps the composition and changes output pixel count. Crop first, then use export resizing only when the destination requires maximum dimensions.

GoalControlCheck
Remove an edgeFree cropSubject is not cramped
Square composition1:1Subject remains centered
Specific destinationEntered dimensionsValues fit the image

Crop workflow

  1. Open an image on the Crop photo page.
  2. Choose Free, Original, or a ratio such as 1:1, 4:3, 3:2, 16:9, or 9:16.
  3. Move and resize the visible area while keeping useful space around the subject.
  4. Confirm the crop and compare with the original.
  5. Choose a format and optional resize settings on export.
Three-by-four crop area with composition grid in the real tool
Three-by-four crop area with composition grid in the real tool

Limits and method

  • The current crop is destructive within the edit; retain the original file.
  • The feature does not recognize faces, products, or important regions.
  • Orthogonal rotation can swap width and height.
  • JPEG is re-encoded; transparency needs PNG or WEBP output when the browser supports it.
  • EXIF and color profiles may not be retained.

Tests verify dimensions, real pixel changes, transparency, and output signatures. The image at the top was captured from the running tool.

Corrections: use the contact page or see the methodology.

Open the crop tool

Open the crop tool