Removes overflow
Crop
Use Crop when the frame must be filled edge to edge and losing some outer content is acceptable. The crop position controls what remains visible.
Free image aspect ratio changer
Change Image Aspect Ratio
Change a photo to a square, portrait, landscape, or custom aspect ratio without stretching it. Use Crop when trimming edges is acceptable, or Fit, Blur, and Solid to keep the complete image while filling the new frame.
- Runs in your browser
- No image upload
- Review before download
Choose an image
Select one JPG, PNG, or static WebP and review its current dimensions and ratio.
Choose a ratio and mode
Pick a common or custom ratio, then decide whether to crop the image or add a background.
Choose an image and settings to create a local preview.
Preview and download
Compare the source and PNG result, then verify dimensions, ratio, mode, and file size.
Your before-and-after preview will appear here after local processing.
Ratio is not resolution
Change the frame shape, not just the pixel count
Aspect ratio describes the relationship between width and height, such as 16:9. Resolution describes exact pixels, such as 1920 × 1080. Two images can share the same ratio while having very different resolutions.
Choose what happens outside the new frame
Every mode keeps the source pixels proportional. The difference is whether content is removed or new canvas space is added.
Keeps the whole image
Fit
Use Fit when every source pixel matters. Transparent or colored canvas space is added around the contained image.
Uses source pixels
Blur background
Use Blur for a full frame without cutting the subject. A blurred cover copy of the same image fills the background using pixels from the source.
Predictable background
Solid background
Use Solid for product layouts, documents, or simple compositions that need a controlled white, black, or custom-color background.
Common aspect ratios
1:1
A balanced square frame for profile images, thumbnails, and grid layouts.
4:5
A portrait frame that gives a subject more vertical space without becoming full-screen tall.
3:2
A familiar landscape or portrait photo proportion.
16:9
A wide frame for presentations, video covers, banners, and landscape displays.
9:16
A tall frame for phone-first layouts, vertical stories, and wallpaper-style images.
Useful ways to reframe an image
- Social layouts. Prepare one photo for square, portrait, wide, or vertical placements without relying on fixed platform pixel specifications.
- Product images. Keep the whole item with Fit or Solid, or crop surrounding space for a tighter catalog frame.
- Presentations. Place portrait or square source material into a wide slide frame with a solid or blurred background.
- Screens and wallpaper. Match a wide or tall display ratio while choosing explicitly whether the edges are cropped or filled.
Transparency and animation
PNG Fit output can keep transparent canvas space. Crop keeps source transparency where present. Blur and an opaque Solid background remove transparent outer space. Animated PNG or WebP input is rejected rather than flattened silently.
Metadata and color
Browser re-encoding does not promise to retain EXIF, camera metadata, ICC profiles, or animation. JPEG orientation is applied to the visible pixels before the new frame is created.
Output size and quality
The result is a PNG. A larger canvas or PNG encoding can produce a file larger than the original, especially when the source is JPG or WebP. Keep the original and inspect the downloaded result before replacing it.
Aspect ratio questions
Is changing aspect ratio the same as resizing?
No. Aspect ratio changes the shape relationship between width and height. Resizing changes exact pixel dimensions; it may or may not change the ratio.
Can I change the image aspect ratio without cropping?
Yes. Use Fit to keep the complete image and add canvas space. Blur and Solid also keep the full foreground while filling the extra frame. Crop is the mode that removes overflow.
Does PicRecast upload my image?
No. Crop, Fit, Blur, and Solid run in the browser and do not send image bytes to PicRecast or an image-processing API.
Why can the downloaded file be larger?
Changing the canvas dimensions and encoding the result as PNG can use more bytes than an already compressed JPG or WebP source.
Are metadata and animation preserved?
No guarantee is made for EXIF, ICC, camera metadata, or animation. Animated PNG and WebP input is rejected; keep the original file as your archive.