YouTube thumbnail resizer
Your files never leave your deviceDrop images here
or paste with Ctrl V · JPG, PNG or WebPJPG, PNG or WebP, as many as you like
Each image comes out as a 1280 × 720 JPG, cropped from the center to fill 16:9. Use Crop image first to choose the part that stays.
How to make a YouTube thumbnail
- Drop your pictures on the box, choose them, or paste them with Ctrl V.
- Oli crops each one from the center to fill 16:9 and saves it as a 1280 × 720 JPG.
- Download the thumbnail, or the ZIP when you made several, and add it in YouTube Studio.
The thumbnail size
| Detail | What Oli does |
|---|---|
| Size | 1280 × 720 pixels, a 16:9 picture. |
| Format | Always a JPG, saved to stay under 2 MB, the limit for custom thumbnails added from a phone. |
| Picture that is not 16:9 | It is cropped from the center to fill the frame, and a line on the result says so. The shape of the picture is never distorted. |
| A different part of the picture | Crop the image first with Crop image to choose the part that stays, then bring it here. |
| Transparency | Transparent areas turn white, because JPG has no transparency. |
| What YouTube asks | YouTube Help, Add custom thumbnails (support.google.com/youtube/answer/72431, checked on October 31, 2026): 16:9, at least 640 pixels wide, JPG or PNG, and a recommended 3840 × 2160 for videos. FileOrca makes 1280 × 720, which is within those rules. |
| Photo data | Exif, XMP, IPTC and GPS are left out of every thumbnail. |
Questions about thumbnails
What size is a YouTube thumbnail?
YouTube Help (support.google.com/youtube/answer/72431, checked on October 31, 2026) asks for a 16:9 image at least 640 pixels wide, as a JPG or PNG, and recommends 3840 × 2160 for videos. FileOrca makes 1280 × 720, which is within those rules and keeps the file light.
Why does YouTube say my thumbnail is too big?
The usual cause is the file size: YouTube Help gives 2 MB for a custom thumbnail added from a phone, and a 1280 × 720 PNG can pass that. This preset saves a JPG, which stays far below it.
What happens if my picture is not 16:9?
Oli crops it from the center to fill the frame, so the edges are cut and the shape of the picture is never distorted. If the important part is off-center, use Crop image first to choose the part, then bring the result here.
Why does my thumbnail look blurry?
A thumbnail looks blurry when the picture it starts from is small, because there are too few pixels to look sharp at 1280 × 720. A picture smaller than 1280 × 720 is enlarged to fill the frame, the result says so, and it may look softer. Start from a picture at least 1280 pixels wide.
Can I use a PNG for the thumbnail?
YouTube accepts PNG, but this preset saves a JPG, which keeps the file light. JPG has no transparency, so transparent areas turn white.
Should I use 1280 × 720 or 3840 × 2160?
Both are 16:9, so both fit. YouTube Help recommends 3840 × 2160 for videos, and this preset makes 1280 × 720, a size that loads fast and stays far below the 2 MB phone limit.
Privacy
Your pictures are turned into thumbnails on your device and never sent to a server. The new files leave out the photo metadata, including the GPS location.
More image tools
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Cut a photo to a square, 4:5, 16:9 or a free shape.
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Rotate image
Turn a photo 90° or 180°, or mirror it.
HEIC to JPG
Turn iPhone HEIC photos into JPG or PNG.
PNG to JPG
Turn PNG into JPG, or JPG into PNG.