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MixTool

Thumbnail generator

Create eye-catching thumbnails and social images at the exact size each platform expects, with bold, readable title text.

  • Files never leave your device
  • Free · no sign-up
  • Works on phone and desktop
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Thumbnails that get clicks

The thumbnail is the first thing people see. Upload a photo or a frame from your video, choose the platform — YouTube, Instagram, Stories, X, LinkedIn, Pinterest or a blog link preview — and it's fitted to the right dimensions automatically.

Add a headline in heavy, high-contrast type with an optional dark shade or outline so it stays readable on any image. YouTube thumbnails are automatically kept under the 2 MB upload limit.

How to make a thumbnail

  1. 1

    Add a picture

    Upload a photo or a screenshot from your video.

  2. 2

    Choose the size

    YouTube 1280 × 720, Instagram, Story, X, LinkedIn, Pinterest or blog/link preview.

  3. 3

    Add your title

    Type the headline, then set its size, position, colour, shade and outline.

  4. 4

    Download

    Save a high-quality JPG at the exact size.

Key features

  • 8 platform sizes

    Always the correct pixel dimensions.

  • Readable text

    Heavy type, dark shade and outline options.

  • Fill or show everything

    Crop to fill, or keep the whole photo on a blurred background.

  • YouTube-ready

    Automatically under the 2 MB limit.

Common uses

  • YouTube creators: Consistent, readable thumbnails for every upload.
  • Bloggers: Link previews that look good when shared on WhatsApp, Facebook and LinkedIn.
  • Small businesses: Promotional images for every social network.

Thumbnail and social image sizes

PlatformSize (px)
YouTube thumbnail1280 × 720
Blog / link preview (Open Graph)1200 × 630
Instagram square / portrait1080 × 1080 / 1080 × 1350
Story, Reel, Short1080 × 1920
X (Twitter) post1600 × 900
Pinterest pin1000 × 1500

Tips and good to know

  • Keep the title under about six words — thumbnails are often seen at small sizes on phones.
  • Faces with clear expressions and high contrast tend to attract more clicks.
  • Cut yourself out of the background first with the Background Remover for a bold look.

Frequently asked questions

What size is a YouTube thumbnail?

1280 × 720 pixels (16:9), under 2 MB, as JPG, PNG or GIF. This tool exports a JPG that meets all three.

Can I add text to my thumbnail?

Yes. Type a title and adjust its size, position, colour, dark shade and outline.

Will my photo be cropped?

With Fill & crop it's centred and cropped to fit. Choose Show whole photo to keep all of it on a blurred background.