What does YouTube Thumbnail Maker do?
Tubelexity is a manual YouTube thumbnail maker with a 1280 × 720 canvas, image cropping, draggable text layers, outlines, shadows, safe-area guides and file-size optimization. Preview the design at desktop, mobile and recommendation-card sizes, then export JPEG, PNG or WebP without AI generation or external uploads.
How to use YouTube Thumbnail Maker
- 1Choose a JPEG, PNG or WebP image.
- 2Set the crop and canvas, then add and arrange text layers.
- 3Compare the source and result at common thumbnail display sizes.
- 4Choose format, quality or an approximate target size and export.
Supported inputs and outputs
Inputs
JPEG, PNG, WebP
Outputs
JPEG, PNG, WebP
Practical uses
- Resizing artwork to 1280 × 720
- Compressing a thumbnail below an upload limit
- Checking small-card readability
- Preserving transparent channel artwork
Browser and media limitations
- Very large source images can exceed canvas memory.
- JPEG cannot preserve transparency.
- Image quality depends on export quality and resizing.
- Current YouTube limits should be checked before publishing.
How local processing works
Cropping, resizing and export use browser image decoding and Canvas APIs. The image is processed locally and is not uploaded to Tubelexity.
Frequently asked questions
What size should a YouTube thumbnail be?
A 1280 × 720 image with a 16:9 ratio is a common recommendation, but verify YouTube's current upload requirements before publishing.
Can I compress a YouTube thumbnail?
Yes. Choose JPEG or WebP and adjust quality while watching the calculated output file size.
Will transparency be preserved?
PNG and WebP can preserve transparency. JPEG uses the selected background color because it has no alpha channel.
Does the export match the crop preview?
Yes. The preview and export use the same crop coordinates and output dimensions.