Free Tool
YouTube Thumbnail Text Editor
A thumbnail is a poster, not a screenshot: three short lines of text on the right image beat a paragraph. This editor puts your text on your image and exports the 1280 by 720 PNG YouTube wants.
Runs entirely in your browser. Nothing you type leaves your device, and nothing is stored or sent anywhere. The output is a planning aid built from the figures you enter — check the results before relying on them.
What this tool does
Pick an image from your device — it is drawn onto a canvas in your browser and never uploaded anywhere. Add up to three lines of text, choose the size, the colour and where the text sits, and preview the result at the real 1280 by 720 size. Press Download and you get a PNG ready to upload as a thumbnail.
Text on a thumbnail works when it is short, large and high-contrast. Three words at a large size read on a phone; a sentence does not. The editor caps each line so the habit is built in: if the line does not fit, shorten the words instead of shrinking the text.
Try it
Waiting. Choose an image, enter your text and press Preview text. The image never leaves your device.
How it works
Your image is drawn onto a 1280 by 720 canvas, scaled to cover the frame — the same size YouTube asks for, with a 16:9 ratio. Text is drawn in a bold system font at the size you set, with a dark outline so it reads over any background, and the lines are stacked from the position you picked.
Nothing is uploaded. The file you choose is read by your browser alone, the drawing happens on your device, and the download is generated locally. Closing the page loses the work — download the PNG before you leave.
Assumptions and limitations
The editor draws text. It does not design the thumbnail for you.
- Text size is capped at 200 pixels and each line at 40 characters. A line longer than that will not fit at a readable size — shorten the words.
- The image is scaled to cover the frame, so very tall or very narrow images lose their edges. Start with a 16:9 image for the best result.
- No image is stored or sent anywhere. The canvas is cleared when the page closes.
- The font is your system font stack, not a brand font. The thumbnail’s job is readability on a phone, and system fonts do that reliably.
Worked example
Example (illustrative inputs, not a real thumbnail). Two lines at 96 pixels, white text with a black outline, placed at the bottom:
| Item | Figure |
|---|---|
| Text line 1 | I TRIED IT FOR 30 DAYS |
| Text line 2 | The honest result |
| Text size | 96 pixels |
| Export size | 1280 × 720 PNG |
Frequently asked questions
What size should a YouTube thumbnail be?
1280 by 720 pixels, a 16:9 ratio. That is the size YouTube recommends, and it is the size this editor exports. Smaller images look soft on large screens; other ratios get cropped.
Why is each line capped at 40 characters?
Because thumbnails are read on phones. A line longer than about 40 characters has to shrink to fit, and small text on a small screen is unreadable. Shorten the words instead of shrinking the text.
Does my image get uploaded anywhere?
No. The image is read by your browser alone and drawn onto a canvas on your device. Nothing is sent to a server, and nothing is stored after you close the page.
Can I use any image as a thumbnail?
Only images you own or have a licence to use. A screenshot from someone else’s video, a stock photo without the right licence, or a celebrity photo you do not own can get the video claimed or removed.