Pixelcut
A hero image demonstrating an image resizer, showing a beautiful beach photo displayed in multiple aspect ratios like square, vertical, and widescreen, labeled for different uses.

Resize Portrait Into 3:4 with AI

7000万人に信頼されています
171,800件のレビュー
開発者API
iPhoneAndroid で利用可能

How to Create a 3:4 Portrait

  1. 1

    Upload your image

    Start by selecting the photo you want to resize from your computer or phone.

  2. 2

    Enter your prompt

    Tell the AI how to crop your image. For instance, 'Crop this photo to a 3:4 aspect ratio'.

  3. 3

    Generate your portrait

    Our AI will process your request and generate a new version of your image in the 3:4 portrait format.

  4. 4

    Download your image

    Your perfectly framed 3:4 portrait is ready. Download the high-resolution PNG file to use anywhere.

Stop struggling with complicated editing software. With our AI-powered tool, you can instantly transform any image into a perfectly framed 3:4 portrait. Simply upload your photo, and our AI will suggest the best crop to fit the 3:4 aspect ratio. This intelligent cropping saves you time and effort by automatically centering the subject and creating a balanced composition. Whether you're a photographer or just want to improve your social media profile, getting that ideal vertical shot is now faster and easier than ever before.

Get the Perfect 3:4 Frame in Seconds

A mockup illustrating image resizing, showing a beautiful mountain landscape photo displayed in a grid of various sizes and aspect ratios on a clean white background.
The 3:4 aspect ratio is a popular choice for social media platforms, as it allows your portraits to take up more screen space and grab attention. Use our tool to quickly adapt your images for Instagram posts, Pinterest pins, and professional profiles. This vertical format is ideal for showcasing headshots, fashion, and product photography. By resizing your photos to this optimal ratio, you ensure they appear exactly as intended, without awkward automatic cropping by different platforms, making your content more engaging and professional.

Optimize Photos for Social Media and Beyond

A conceptual image illustrating image resizing, showing a photo of a toucan perfectly scaled to fit three different-sized frames, set against a plain white background.
Resizing a photo shouldn't mean sacrificing its quality. Our AI photo editor is designed to intelligently crop your images to a 3:4 aspect ratio without stretching or distorting the important parts of your picture. Unlike basic cropping tools that can leave you with awkward compositions, our AI analyzes the photo to identify the main subject. This ensures your final portrait is sharp, clear, and professionally framed. You get all the benefits of a new aspect ratio while preserving the integrity and detail of your original image.

Maintain Quality with Smart Resizing

A conceptual representation of an image resizer, showing a large photo of a mountain sunrise with several smaller versions of the same photo cascading from it on a white background.
It’s Fast: Go from any image to a perfectly framed 3:4 portrait in seconds. It’s AI-Powered: Our tool intelligently suggests the best crop, so you don't have to worry about manual adjustments. It's Easy to Use: A simple, conversational interface makes resizing accessible to everyone, regardless of skill level. Optimized Results: Create portraits in the ideal 3:4 ratio for social media and professional use. High-Quality Downloads: Your final image is available for high-resolution, watermark-free download in PNG format.

Why use Pixelcut's AI 3:4 Portrait Tool?

A central photo of a colorful toucan, surrounded by three smaller versions of the same photo in square, portrait, and landscape formats, demonstrating image resizing.
Professional Headshots: Create a clean, vertical headshot for your LinkedIn profile or company website. Social Media Profiles: Make your profile picture stand out on platforms like Instagram and Facebook. Fashion Photography: Showcase outfits with a full-body or three-quarters view in a flattering vertical format. Product Listings: Optimize product photos for e-commerce sites that favor a taller aspect ratio. Dating App Photos: Craft the perfect portrait to make a great first impression on dating profiles.

3:4 Portrait Use Cases

A visual representation of an image resizer, showing the same photo of a coastal sunset in three different sizes, large, medium, and small, side-by-side on a white background.

よくある質問

Pixelcutは200万人以上に愛されています

  • 私のお気に入りのアプリ

    素晴らしいアプリ、使いやすい。中小企業がさまざまなマーケティング資料を専門的に作成するための時間と費用を節約できるようになります。ありがとう。
    シェイリン D.
  • 最高の背景除去剤

    私の仕事には優れた背景除去剤が必要で、私はそれをすべて経験してきました。これは今のところ最高です。使い方はとても簡単で、結果は常に素晴らしいものになります。ピクセルカットさん、ありがとうございます!
    キラ・H
  • 大好きです

    驚くほど簡単で、バッグやアクセサリーに完璧な結果が得られます。プロのカメラマンが撮影したようです。
    メアリー J.