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    rsz.app logo - AI-powered image resizer tool

    resizeapp™

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    YouTube Thumbnail Resizer (1280×720)

    Create perfect YouTube thumbnails with AI. Resize any image to 1280×720 for maximum click-through rates.

    Professional YouTube thumbnail resizer for content creators, vloggers, and YouTubers. Our AI optimizes images for YouTube's 16:9 format while preserving text overlays and faces. Free credits available.

    YouTube Thumbnail Specifications

    Dimensions:
    1280 × 720 px
    Aspect Ratio:
    16:9 (Landscape)
    File Size:Under 2MB (recommended)
    Formats:JPG, PNG, WebP

    3 free credits • No watermark • AI-powered

    How to Create Perfect YouTube Thumbnails

    1

    Upload Your Design

    Upload any image or graphic you want to use as a thumbnail

    2

    AI Optimization

    Our AI resizes to 1280×720 while keeping text and faces clear

    3

    Upload to YouTube

    Download your optimized thumbnail and upload to your video

    Frequently Asked Questions

    What is the best YouTube thumbnail size?

    The ideal YouTube thumbnail size is 1280×720 pixels (16:9 aspect ratio). This ensures your thumbnail looks sharp across all devices and meets YouTube's recommended specifications.

    What file size should my YouTube thumbnail be?

    YouTube recommends keeping thumbnails under 2MB, but our service supports files up to 25MB. The resized output is optimized for web delivery.

    Can I resize vertical images to YouTube thumbnail format?

    Yes! Our AI can intelligently adapt any image orientation to 1280×720 (16:9) format while preserving the important elements of your original image.

    Does the resizer work for YouTube Shorts thumbnails?

    YouTube Shorts use a 9:16 vertical format. For standard YouTube video thumbnails, use 1280×720. For Shorts, we recommend our TikTok/Instagram Story preset at 1080×1920.

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    AI Image ResizingAny Size, Perfect Fit

    Make every ratio feel native — our AI intelligently preserves composition, pose, and perspective
    Social MediaAdsE-commerceWeb Design
    Join 1,000+ users • Batch processing • API
    Standard resized image without AI enhancement
    AI-resized image with perfect quality preservation
    RegularAI

    Stunning Quality

    Total Aspect Freedom

    Create any custom dimension instantly with up to 4x upscale or downscale

    Aspect ratio flexibility visualization

    Flawless AI Quality

    Preserve perfect clarity and detail with our industry-leading AI model

    AI quality enhancement visualization

    Intelligent Reframing

    Automatically keeps key subjects perfectly in frame

    Content-aware reframing visualization

    Blazing-Fast API

    Integrate and automate your entire creative workflow in minutes

    Fast API processing visualization

    All-in-one AI Image Resizer

    resizeapp™ allows you to resize any photo for any format—while keeping the subject perfectly framed.

    Our AI automatically adjusts the composition of photos by predicting precise adjustments to the image layout, ensuring subjects are optimally positioned and edges are naturally balanced, all without generating new content. No prompts or manual work required.

    One-click AI image resizing interface - simple and intuitive process
    API integration workflow diagram - developer tools for automated image resizing

    Seamlessly Fits Your Workflow

    Looking to automate intelligent image resizing? Our powerful API integrates effortlessly, helping you bring smart, AI resizing into your creative or production pipeline.

    They love us.
    You will too.

    Join thousands of creators, marketers, and developers who trust resizeapp™

    "
    Post-shoot, resizing 500 SKUs used to take a full day. With resizeapp™ we drop the folder in, select PDP, thumbnail, marketplace, and story presets, and it keeps shoes and faces perfectly in frame. We now publish the same day, catalog throughput is up 3×, and 'cropped-off product' tickets went to zero
    L
    Lina M., Head of E-commerce, mid-size fashion retailer
    Verified Customer
    "
    Creative refreshes were a scramble. resizeapp™ turns one 15-second cut into on-brand 1:1, 4:5, and 9:16, tracking the subject so nothing important gets cropped. Our weekly build time fell from 6 hours to under 40 minutes, CTR lifted 19%, and CPA dropped 14% on the last campaign
    M
    Marco P., Performance Marketing Lead, DTC skincare brand
    Verified Customer
    "
    Our DAM was drowning in variants. With resizeapp™'s we upload one master and export channel-ready packs for web, app, newsletter, and partner portals while preserving logos and safe areas. 92% of assets ship with no manual touch, and average turnaround fell from 36 hours to 5
    R
    Ruth A., Content Operations Manager, real-estate marketplace
    Verified Customer