How to add text to an image online in four steps
Choose the image and the final use
Start with the highest-resolution copy you have and decide where the finished file will be used. A social post, product listing, presentation, or printed flyer may need a different crop and export size. If you might need another version later, keep the untouched original before adding the first caption.
Upload the file and open the text tool
Use an editor that accepts the format you already have, such as JPG, PNG, or WebP. Upload the picture, choose Add Text, and create a short text box. New text should be added as its own layer or editable object whenever possible, because that makes it easier to move, resize, and correct before export.
Write the message and position it safely
Type the caption, price, date, or label, then move it away from faces, products, important details, and crop edges. Keep the message close to the original visual purpose of the image. A short line or two usually looks more intentional than a paragraph placed over a busy background.
Check readability and export a copy
Review the text at normal viewing size, not only while zoomed in. Look for low contrast, uneven spacing, clipped letters, and a text box that will disappear after cropping. Export a new copy in the required format and keep the editable version if the tool supports one.