RapidHow to Crop an Image on iPhone — Free, Built-In Methods
Crop any photo using the built-in iOS Photos app — aspect ratio presets, free-form crop, and a browser tool with more ratio presets, including 4:5.
⚠️ Always use a copy of your document, never the original. Keep your original file safe.
How to crop an image on iPhone is built right into iOS — no app download needed. The Photos app on every iPhone includes a full crop tool with aspect ratio presets, free-form crop, and a straighten control. For extra ratio presets such as 4:5, a browser tool in Safari works just as well.
Method 1: iPhone Photos App (Built-In, Free)
This is the fastest method and works entirely offline. Every iPhone running iOS 13 or later has this crop tool.
- Open the Photos app and tap the image you want to crop.
- Tap Edit in the top-right corner.
- Tap the crop icon (two overlapping rectangles) at the bottom of the screen.
- Tap the aspect ratio icon (a rectangle with arrows, top right) to choose a preset — Square, 4:3, 16:9, or others.
- Drag the crop handles or drag inside the frame to position the subject.
- Tap Done. The cropped version replaces the photo in your camera roll.
Aspect Ratio Options in iPhone Photos
| Ratio | Use case |
|---|---|
| Free-form | Drag corners to any custom shape |
| Square (1:1) | Instagram posts, profile photos |
| 4:3 | Standard photo print proportions |
| 16:9 | Widescreen, YouTube thumbnails |
| 5:4, 7:5, 3:2 | Print photo sizes |
Method 2: Browser Tool — Ratio Presets, Including 4:5 (Safari on iPhone)
The iOS Photos app crops by ratio only — it does not let you specify exact pixel dimensions. The browser tool gives you ratio presets (Square 1:1, Portrait 4:5, 16:9 and more) and shows the selection size in pixels as you drag. It does not have a box to type an exact size either, so if you need a precise size (e.g. 600×600 for a passport photo or 1080×1080 for Instagram), crop to the right ratio first, then set the exact pixels with Resize Image.
- Open Safari on your iPhone and go to rapidtools.online/crop-image.
- Tap Upload and select your photo from the camera roll.⚠️ Always use a copy of your document, never the original. Keep your original file safe.
- Choose a preset aspect ratio (such as Square 1:1 or Portrait 4:5), or use Free Form and drag the corners. The selection size is shown in pixels as you drag.
- Drag to position the crop area.
- Tap Apply Crop, then Download Cropped Image. Safari saves it to your Downloads (in the Files app); from there you can save it to Photos.
- Need an exact pixel size? Open Resize Image, upload the cropped image, and enter the width and height you need.
Method Comparison
| Method | Exact pixels? | Needs internet? | Best for |
|---|---|---|---|
| iOS Photos app | No (ratio only) | No (offline) | Quick crops, everyday use |
| RapidTools crop (Safari) | Shows the size as you drag (exact size: use Resize Image after) | Yes | Ratio presets — Instagram 1:1 and 4:5 |
Common Crop Sizes for iPhone Photos
| Use case | Dimensions | Ratio |
|---|---|---|
| Instagram square post | 1080 × 1080 px | 1:1 |
| Instagram portrait post | 1080 × 1350 px | 4:5 |
| Profile photo (most platforms) | 400 × 400 px | 1:1 |
| US passport photo (digital) | 600 × 600 px | 1:1 |
| WhatsApp profile | 500 × 500 px | 1:1 |
Frequently Asked Questions
How do I crop an image on iPhone for free?
Open the Photos app, tap the image, tap Edit, then tap the crop icon at the bottom. Choose an aspect ratio or drag the corners freely, then tap Done. Completely free and built into every iPhone.
How do I get a 1:1 square crop on iPhone?
In the Photos app: Edit → crop icon → aspect ratio icon → Square. Drag to reposition, then tap Done. For an exact pixel size like 1080×1080, set it afterwards with rapidtools.online/resize-image in Safari.
How do I undo a crop on iPhone?
iOS Photos is non-destructive — the original is always kept. Open the cropped photo, tap Edit, then tap Revert (bottom-right) → Revert to Original. This works even months after you cropped.
Can I crop to exact pixel dimensions on iPhone?
Not in one step. The built-in Photos app works by ratio only, not exact pixels. For a specific pixel size, crop to the right ratio first (in Photos or at rapidtools.online/crop-image in Safari), then open rapidtools.online/resize-image and enter the exact width and height.
Does cropping reduce image quality on iPhone?
No — cropping only removes pixels outside the selected area. The pixels inside the crop keep their original quality. Heavy cropping (keeping a small area of a large photo) will reduce the total resolution, which may look soft if printed large.