For creators whose thumbnails look great on a laptop and unreadable on a phone. Enter the text, colours and size to see it at real phone sizes with a score out of 100.
Publish the longer version on ByteBlog. Every post grows your name, your readers and your followers.
You enter
AWS IN 10 MIN, white text on pink, 140 px tall, extra bold
The tool shows
Readability score 100: 4 words, contrast 4.6:1 and 18.4 px text height in the suggested videos slot
Three or four words is the sweet spot. On a phone the suggested-video thumbnail is about 168 pixels wide, so long text turns into a blur.
Aim for a contrast ratio of 4.5:1 or more between text and background. White or yellow text on a dark or bold colour, often with an outline, reads best.
Big enough to be at least 9 to 12 pixels tall on a phone. On the full 1280 x 720 image that means roughly 70 to 100 pixels or more.
Yes. It is free, needs no sign-up and runs entirely in your browser, so what you type is not uploaded. You only sign in if you want to email a result to yourself or save it to your CareerByteCode profile.
