MyToolsBenchResize Image for YouTube
YouTube needs 1280×720 for thumbnails and 2560×1440 for channel art. This tool resizes to either exactly, in your browser, with nothing uploaded. Everything runs in your browser — nothing is uploaded. Need a smaller file instead? Compress or convert.
Drag the preview to choose which part of the image is kept. The same framing is used for every image in the batch.
How it looks
Resize Image for YouTube on MyToolsBench, resizing a photo for YouTube — before and after:
How to resize an image
Resizing changes the pixel dimensions of an image — making it fit a specific width, a percentage of the original, or a platform's required size. Smaller dimensions also mean a smaller file, which is why resizing is one of the most effective ways to speed up a page.
- Add your images, or drop them in.
- Choose By dimensions for an exact width and height, By percentage to scale, or a Preset for common social and screen sizes.
- Click Resize, then download each file or grab them all as a ZIP.
Exact or proportional
Set precise pixels with aspect-ratio lock, scale by percentage, or pick a preset. Whatever the target needs.
Batch, instantly
Resize a whole folder at once to the same dimensions. No upload wait, no queue, no file limit.
Nothing is uploaded
Your images are resized by your own browser and never sent to a server, so they stay completely private.
Resize for a specific platform
Jump to a common size:
Other image tools:
Will resizing reduce quality?
Making an image smaller is safe — you are discarding pixels you no longer need, and the result looks clean. Making an image larger than its original is where quality suffers, because the browser has to invent pixels that were never there, which looks soft or blocky.
As a rule: resize down freely, but avoid scaling up much beyond the original dimensions. If you need a smaller file rather than smaller dimensions, use the compressor instead.
Square sizes
Same width and height — profile photos, icons, product shots:
Landscape sizes
Wider than tall — screens, banners, covers and thumbnails:
Portrait sizes
Taller than wide — passport photos, forms and phone screens:
Change the aspect ratio
Paper, print & photo sizes
Paper and photo sizes in mm, cm and inches, plus DPI tools:
Resize for a platform
Ready-made sizes for social profiles and posts:
Online shop sizes
Product photos, banners and logos for Etsy, eBay and Shopify:
Resize tools
Batch resizing, DPI and crop tools:
Thumbnails and channel art are different problems
Thumbnails want 1280×720, in 16:9, under 2MB, as JPG or PNG. The resize itself is easy — most source material is already 16:9. The constraint people actually hit is the 2MB limit, and that is a compression problem rather than a dimensions problem. If a 1280×720 thumbnail is still too heavy, send it through the JPG compressor with a target size of around 1.5MB.
Worth remembering that your thumbnail is often displayed at about 210 pixels wide in search results and sidebars. Fine detail and small text disappear entirely at that size. Design for the small version and check it by zooming out, not by looking at it full size.
Channel art is harder, because one image has to work across television, desktop, tablet and phone. Upload 2560×1440, but keep everything important inside the central 1546×423 safe area — that is the only region guaranteed to be visible on every device. Anything outside it gets cropped on smaller screens. Set the width to 2560 with the aspect lock on if your source is already 16:9, and leave generous empty margins around your logo and text.
Frequently asked questions
What size should a YouTube thumbnail be?
1280×720 pixels, in 16:9, kept under 2MB. That is YouTube's stated minimum and it displays cleanly everywhere. Larger images are accepted but get scaled down anyway, so there is no benefit and it makes the 2MB limit harder to meet.
What is the difference between resizing and compressing?
Resizing changes the dimensions (the width and height in pixels). Compressing keeps the dimensions but reduces the file size by lowering quality. Resizing down does both at once, which is why it is so effective. For file size alone, use the compressor.
Will the aspect ratio be kept?
In dimensions mode, tick "Keep aspect ratio" and set just the width or height — the other is calculated automatically so the image is not stretched. Untick it to force exact dimensions, which may distort the image.
Can I resize many images at once?
Yes. Drop in as many as you like and they are all resized to the same setting in one go, then you can download them together as a ZIP. There is no limit on how many.
Are my images uploaded?
No. Resizing happens entirely in your browser. Nothing is transmitted or stored, and you can disconnect from the internet after the page loads and it still works.
Which format will I get back?
Images keep their original format where the browser supports it (JPG, PNG, WebP). Formats a browser cannot write, like GIF or BMP, come back as PNG. To change format on purpose, use the converter.
Social media sizes
Facebook, Instagram, LinkedIn, TikTok, Discord, Pinterest and more: