The best alternatives to Kajero are Realmac Software, Dillinger, and Docbase. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Create and host beautiful documentation sites for your product, API, project or Saas. Don't spend time on designing and creating your own documentation website. Focus on whats important. Focus on writing great docs. Your users will love it.
Thinkio turns your PDFs and images into interactive worksheets you can share with a link. People can draw and write on the worksheets and submit them back for you to view. We built Thinkio to help teachers, but people have found all sorts of uses for it.
Penbook is the nicest freehand writing experience. Write naturally with your Apple Pencil on Live Paper with Penbook.
Build your perfect notebook from more than four hundred types of stationery. Then, use the best digital inking technology to pour your ideas, notes, plans, and dreams into it.
Responsivize is an open-source desktop app that you can use to develop responsive websites! In the app, you can test your web apps on popular iPhones, Android phones, iPads, MacBooks, and you can even set custom dimension devices!