The best alternatives to User Inyerface are Befront, Pablito Planeta, and UI Guideline. If these 3 options don't work for you, we've listed a few more alternatives below.
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Postman Recorder by DevTools— Export Postman APIs from browser
Master UI/UX design skills through practice on real-life cases and get instant automated feedback on your results with a brand-new AI based Figma plugin Befront.
It's the handbook that every UI Designer/Developer should include in their workflow. Through synthesizing all the wisdom of the most popular Design Systems and UI Libraries in one place, it makes your work easier and shortens your research time.
Mio is a cute and expressive illustration pack which includes 40 different illustrations, 14 backgrounds and 2 different styles. Everything in the pack is easily customizable and downloadable insvg,png,pdf formats.