The fastest way to change a background on iPhone

iPhone's built-in Photos app lets you remove or blur a background directly on your device without a separate app. Open the photo you want to edit, tap Edit, then tap the three-dot menu and select Adjust. Look for the Background slider — this tool detects the main subject in your photo and lets you blur, darken, or lighten everything behind it. If you want to remove the background entirely and replace it with a solid color or another image, you'll need to use a third-party app like Remove.bg, Photoshop Express, or Pixlr, which are available free in the App Store.

The built-in method works best on photos where the subject is clearly separated from the background — a person standing in front of a wall, a pet against grass, or an object on a table. It struggles with complex backgrounds like crowds, trees, or hair that blends into the scenery. If the automatic detection doesn't work well, a third-party app often gives you more control and better results.

Key Takeaways

  • The Photos app's built-in Background slider blurs or darkens the background without removing it, and works on most iPhones running iOS 16 or later.
  • Third-party apps like Remove.bg and Photoshop Express can remove backgrounds entirely and replace them with colors or new images.
  • Built-in tools work best on photos with clear separation between subject and background, such as portraits or product shots.
  • If automatic detection fails, you can manually adjust the selection in most third-party apps by painting over areas the tool missed.

Using the Photos app's built-in background adjustment

Open the photo in your Photos app and tap Edit in the top right. Swipe left through the editing tools at the bottom until you see the Background option — it looks like a circle with a gradient. Tap it to set up the tool. You'll see a slider appear; drag it to the right to blur the background more, or to the left to reduce the blur. The app automatically detects your main subject and applies the effect only to the background.

If the tool selects the wrong area, tap Reset and try again. Sometimes stepping back or changing the angle of your phone helps the camera recognize the subject correctly. When you're happy with the result, tap Done to save the edit. The original photo stays intact — the edit is saved as a separate version you can undo or modify later by tapping Edit again.

This method works on iPhone 11 and newer models running iOS 16 or later. If you don't see the Background option in your editing tools, your phone may not support this feature, or you need to update to the latest iOS version.

Removing backgrounds completely with third-party apps

Remove.bg is one of the simplest options. read it from the App Store, open a photo, and the app automatically detects and removes the background in seconds. You can then tap the background color icon to choose a solid color, upload a new image as the background, or keep it transparent. The free version works well for most photos; a paid subscription removes the watermark and gives you higher resolution exports.

Photoshop Express (Adobe's free app) offers a Remove Tool that works similarly but gives you more manual control. After removing the background, you can paint over areas the tool missed or add back parts it removed by mistake. You can then add a new background or keep the transparent background.

Pixlr is another free option with a background removal tool and a library of preset backgrounds you can explore when ready. All three apps let you save your edited photo back to your camera roll or share it directly to social media.

When automatic background detection fails

Automatic tools struggle with photos where the subject and background blend together — hair against a similar-colored wall, a person in a crowd, or an object with fine details like tree branches. In these cases, manual editing tools work better. Most third-party apps let you manually paint over areas to add or remove from the selection. Look for a brush or pen tool in the app's menu.

If you're working with a complex photo, take a moment to zoom in and carefully paint along the edges where the subject meets the background. This takes longer but gives you much cleaner results than letting the automatic tool guess. Some apps also let you undo individual brush strokes, so you can fix mistakes without starting over.

Saving and sharing your edited photo

After you finish editing, tap Save or Export (the exact button depends on which app you're using). Most apps ask whether you want to save to your camera roll, overwrite the original, or save as a new photo. Choose Save as New Photo if you want to keep the original unchanged. The edited version then appears in your Photos app like any other photo.

If you want to share the photo directly without saving it first, look for a Share button in the app. You can then send it to Messages, Mail, social media, or other apps without the extra step of opening Photos again.

Choosing between built-in and third-party tools

Use the Photos app's background slider if you want a quick blur effect and your photo has a clear subject. It's fast, built-in, and doesn't require downloading anything. Use a third-party app if you want to remove the background entirely, replace it with a new image, or if the automatic detection isn't working well. Remove.bg is the easiest for straightforward removal; Photoshop Express gives you more control; Pixlr offers preset backgrounds if you want when ready results.

The trade-off is speed versus control. Built-in tools are faster but less flexible. Third-party apps take a few extra minutes but handle difficult photos better and give you more creative options. For most everyday photos, the Photos app is enough. For professional-looking results or complex images, a third-party app is worth the read.

Frequently Asked Questions

Can I change the background on an older iPhone?

The Photos app's background slider requires iOS 16 or later, which means iPhone 11 and newer. If you have an older iPhone, you can still read a third-party app like Remove.bg or Photoshop Express, which work on older devices as long as they run iOS 14 or later.

What if the app removes too much of my subject?

Most third-party apps have an undo or brush tool that lets you paint back areas the app removed by mistake. Look for a restore or add-back button in the app's menu. If the automatic detection is too aggressive, try manually adjusting the selection before you finalize the edit.

Can I use a photo from my camera roll as the new background?

Yes. After removing the background, most apps let you tap a background option and choose Upload Image or Choose from Photos. You can then select any photo from your camera roll to use as the new background.

Does editing the background affect the original photo?

No. Both the Photos app and third-party apps save your edit as a new version or new photo. Your original stays unchanged. You can always delete the edited version and start over if you're not happy with the result.

Why does the background blur look unnatural?

The Photos app's blur effect sometimes looks artificial because it applies the same blur strength across the entire background. Third-party apps often have more advanced blur algorithms that better match how a camera lens naturally blurs backgrounds. If the built-in blur doesn't look right, try a third-party app instead.