Resize a text box and enter the text you want to add in Google Slides. Expand the text effects icon and click Transform. PowerPoint offers several curved text effects. Pick the one you prefer.

The text tools in Microsoft Word 2010 can help add a little flair to your documents. One of the text tools enables you to type along a path, including a curve. You create curved text inside a text box ...

To curve text in Canva, you'll need to use a workaround involving shape and text tools coupled with careful placement.