Free · In-Browser · No Upload

YouTube Watermark Resizer

Resize your channel branding watermark to YouTube’s recommended 150×150 pixels.

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100% private

Everything runs locally with HTML5 Canvas. Your image is never sent to a server.

Fast & precise

Instant, accurate output tuned to the exact spec — no guessing, no queues.

No watermark

Free forever, no sign-up, and never a watermark on your finished file.

How it works

Four steps, a few seconds, zero uploads.

Upload

Drop your image or browse. iPhone HEIC works too.

Adjust

The tool applies the exact spec — tweak if you like.

Preview

See the result and file size before you commit.

Download

Save your optimised, ready-to-use image.

YouTube watermark size

YouTube’s branding watermark (the subscribe icon in the corner of your videos) is recommended at 150×150 pixels as a transparent PNG. This tool resizes your logo to a perfect 150×150 square with transparency preserved, in your browser, so it uploads cleanly in YouTube Studio.

Related tools

Jump to another size or format.

Frequently asked questions

What size is the YouTube watermark?

150×150 pixels, square, ideally a transparent PNG.

Does it keep my logo’s transparency?

Yes — PNG output preserves transparency for a clean watermark.

Is my logo uploaded?

No, it is resized locally in your browser.

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Your images stay yours

Every tool here runs in your browser. Nothing is uploaded, stored or watermarked — ever.

Is this safe? See how