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YouTube Watermark Size Resizer

Resize your logo to the exact youtube watermark size, 150x150, with a transparent background — free, private, and done right in your browser.

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Supports JPG, JPEG, PNG, WEBP, PDF, HEIC formats

Images Never Leave Your Device

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100% Free & no login required. Your images never leave your device.

How It Works

Step-by-step guide to resize image for youtube watermark to exact specifications

Upload Your Logo

Drag and drop a JPG, PNG, or WebP file onto the page, or click to pick one from your device. A logo with a transparent background already saved as a PNG gives you the cleanest starting point.

Check The Preview And Pick A Fit

The canvas is already set to 150x150 — nothing to measure. Check the preview, then pick a fit if needed: Stretch image, Crop, Add Padding, or Fill Frame. Add Padding keeps the whole logo intact.

Preview And Download

Check the transparent PNG preview at actual size, then download. Everything ran locally in your browser, so the logo was never uploaded anywhere while you worked on it, and no watermark cap or size check is left to guess at.

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Why Choose Imresizer?

Fast, secure, and completely free image resizing

  • Exact 150x150 Square Canvas

    The canvas is pre-set to YouTube's recommended branding watermark size, 150x150 pixels. Drop your logo on and it snaps to a perfect square — no ruler, no calculator, no guessing at ratios.

  • Transparent Background Built In

    A YouTube subscribe watermark sits on top of your video, so a solid background box looks wrong the moment it lands on footage. Export as a transparent PNG and only your logo shows, matching what viewers actually see in the player.

  • Files Never Leave Your Device

    Resizing happens entirely inside your browser, so your logo file is never sent to a server. That matters if the branding is still unreleased or tied to a channel rebrand you haven't announced yet.

  • Stays Under The 1MB Cap

    YouTube Studio rejects a branding watermark over 1MB. This tool keeps your export well under that limit as PNG or GIF, so the upload goes through the first time instead of bouncing back with an error.

  • Built For A Simple Mark

    At badge size, a watermark plays out on screen for only a few seconds and sits over moving video, not a plain background. A simple, high-contrast logo reads clearly at that size — the preview shows you exactly how much detail survives the shrink.

  • Instant, No Waiting

    There's no upload queue and no processing delay. Your resized watermark is ready to download the moment you finish cropping, even on a slow connection.

  • Free With No Watermark Added

    Resize your branding watermark as often as you need. No account, no trial period, and — despite the irony — the tool never stamps its own mark on the logo you download.

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Frequently Asked Questions

Everything you need to know about image resizing

What is the correct youtube watermark size?

YouTube recommends a square branding watermark at 150x150 pixels. It doesn't have to be that exact number, but it must be square, and 150x150 is the size YouTube itself suggests for the subscribe badge that appears in the corner of your videos.

How do I resize image for YouTube watermark uploads?

Upload your logo — the canvas is already set to a square 150x150, so there's nothing to type or measure. Check the preview, pick a fit if the logo isn't already square, then download as a transparent PNG. The whole process runs in your browser with no software to install.

What is a YouTube branding watermark used for?

It's the small logo that appears in the bottom corner of your videos and lets viewers subscribe to your channel with one click while watching, without leaving the video page. You set it once in YouTube Studio under Branding and it shows on every upload.

Does the YouTube subscribe watermark need a transparent background?

It works without one, but a transparent PNG looks far better once it's playing over your video. A solid background box on the watermark shows up as an ugly square sitting on top of your footage, while a transparent logo blends straight into the frame.

What file size limit applies to a YouTube branding watermark?

YouTube caps the branding watermark upload at 1MB. A logo exported at full resolution from design software can easily go over that, which is why YouTube Studio rejects it. This tool keeps the export comfortably under the cap so the upload goes through on the first try.

What file formats does YouTube accept for a watermark?

YouTube accepts PNG or GIF for the branding watermark, and PNG is the better pick since it supports the transparent background a watermark needs. Upload a JPG, PNG, or WebP logo into this tool and it exports as a clean PNG ready for YouTube Studio.

Why does my YouTube watermark logo look blurry or unreadable?

The watermark plays at a small size in the corner of the video, so fine detail, thin lines, and small text disappear at that scale. A simple, high-contrast mark — a single letter, an icon, or a bold shape — reads far more clearly than a detailed logo once it's shrunk to 150x150.

Are my files uploaded to a server when I resize a watermark?

Nothing is uploaded. The resize happens locally on your own device, so your logo never touches an external server or gets stored anywhere outside your browser, even before your channel rebrand goes public.

Is this youtube watermark size tool actually free?

It's completely free — no account, no trial, and no watermark added to the file you download. Resize as many drafts of your logo as you need while you get the badge looking right.

Can I use a non-square logo as my YouTube watermark?

YouTube requires the branding watermark to be square, so a wide or tall logo needs to fit onto a square canvas first. The canvas is already set to 150x150 — just pick a fit mode, such as Add Padding, to keep the whole mark inside the square before you export.

What if my logo isn't square before I resize it to the 150x150 YouTube watermark size?

If your logo's shape doesn't match the square, a warning offers four ways to fit it: Stretch image, the default, squeezes the logo to fit and can distort the mark; Crop keeps its true proportions and trims the parts outside the frame; Add Padding keeps the whole logo and fills the leftover space with colour bars; and Fill Frame scales it up to cover the square, keeping proportions, with the overflow trimmed. For a watermark, pick Add Padding so the whole logo stays intact and undistorted — cropping or stretching a small badge tends to cut off or warp the mark.

How is a YouTube watermark different from a channel banner or thumbnail?

A watermark is the small, square subscribe badge that sits in a video's corner while it plays. A banner is the wide channel-art image at the top of your channel page, and a thumbnail is the preview image for a single video. Each one has its own size, so resize your file to the right target for the piece you're working on.
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