How to use the Thumbnail Maker
- 1. Add imagesAn optional background photo and an optional side photo, such as your face.
- 2. Write the textTwo to five words, a word to highlight and an optional badge.
- 3. DownloadSave JPG (kept under 2 MB) or PNG and upload it in YouTube Studio.
The default design
The sample thumbnail is 1280 × 720 px, YouTube's recommended 16:9 size. It reads SQL JOINS IN 10 MIN in heavy white capitals with a black outline, and 10 MIN is drawn in the yellow highlight colour. A BEGINNER badge sits in the top corner. The text size is chosen automatically, as large as possible while fitting in up to three lines, so short titles fill the frame.
Add a side photo and it fills one side of the frame while the text moves to the other. A background photo is darkened slightly so the white text stays readable.
What makes thumbnails work
- Few words: thumbnails are often seen at about 160 pixels wide on phones; five words is plenty.
- High contrast: outlined light text on a dark or busy background survives small sizes.
- A face or object gives viewers something to recognise quickly.
- Match the title rather than repeating it word for word, and never promise what the video does not show.
YouTube asks for custom thumbnails under 2 MB; JPG downloads are re-compressed automatically until they fit. The tool tips you off when text gets small. Use only images you have rights to. Your images never leave your device. Write the description with the YouTube description template generator and estimate channel income with the YouTube money calculator.
Frequently asked questions
Can I use this for Instagram or blogs?
The 16:9 size suits YouTube, blog headers and LinkedIn link images. For Instagram posts, the poster maker has square and 4:5 sizes.
Why are my letters a different font?
Fonts like Impact are drawn only if installed on your device; otherwise the nearest bold font is used.
Is the Thumbnail Maker free?
Yes, the Thumbnail Maker is free. The first time you download your first thumbnail, you are asked for your name and WhatsApp number once. After that, this and every other Uncodemy tool opens straight away without the form.