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Thumbnail maker

Design a bold YouTube or social thumbnail — big title, outline, background photo or gradient — and export a 1280×720 PNG, on your device.

Composited on your device — nothing is uploaded

Advanced settings (optional)
Thumbnail
Title
Badge
Font
Text colour
Outline
1010px
Text size
100100%
Align
Position
Size
Thumbnail for YouTube & social · PNG · made in your browser

Runs in your browser. Files are never uploaded — you can go offline after the page loads.

How to use the Thumbnail Maker

  1. Type your title and pick a background or add a photo.
  2. Style the text — font, outline, colour and position — in the big preview.
  3. Download a 1280×720 PNG ready for YouTube or social.

Easy to use

Drop files, pick options, download. Whole folders at once, no signup, no daily limit.

Best quality

The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.

Private & secure

Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.

Design a click-worthy thumbnail in your browser

Start with a bold title, choose a gradient background or drop in a photo, and style the text with a heavy font, thick outline and drop position that reads at a glance. A badge, colour controls and alignment let you match your channel’s look — all in the big preview window with the settings on the right.

Export a 1280×720 YouTube thumbnail, a square, or a 9:16 short as a PNG. Every pixel is rendered on a canvas in your browser, so your image is never uploaded. Need just a quote graphic instead? Use the quote maker.

Frequently asked questions

What size is a YouTube thumbnail?

1280×720 pixels (16:9). This tool exports that by default, plus wide, square and 9:16 short options.

Is my photo uploaded?

No — the thumbnail is composited on a canvas in your browser and nothing is sent anywhere.

Your files never leave your device

Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.

  • No upload, ever. Turn off Wi-Fi after the page loads and every tool keeps working.
  • No limits. No file-size cap, no queue, no watermark, no account.
  • Runs on your CPU. Batches use several cores in parallel; nothing is throttled.

More free tools

Need graphics to work with?

InfyTool is built by the same team as these free libraries.