Resize your channel branding watermark to YouTube’s recommended 150×150 pixels.
Everything runs locally with HTML5 Canvas. Your image is never sent to a server.
Instant, accurate output tuned to the exact spec — no guessing, no queues.
Free forever, no sign-up, and never a watermark on your finished file.
Four steps, a few seconds, zero uploads.
Drop your image or browse. iPhone HEIC works too.
The tool applies the exact spec — tweak if you like.
See the result and file size before you commit.
Save your optimised, ready-to-use image.
Jump to another size or format.
150×150 pixels, square, ideally a transparent PNG.
Yes — PNG output preserves transparency for a clean watermark.
No, it is resized locally in your browser.
Browse the full toolkit — one focused tool per page.
Every tool here runs in your browser. Nothing is uploaded, stored or watermarked — ever.
Is this safe? See how