Cleanmock

Cleanmock is a browser‑based mockup generator that lets you upload a PNG or JPG of your design and instantly place it in the latest device frames such as iPhone X, Android phones, or web browsers. Choose from preset or custom background colors, add optional watermarks, and export at 1x, 2x or 3x resolution. The free tier provides basic mockups, while the Pro plan adds high‑resolution outputs, unlimited downloads, custom backgrounds, and app‑store assets.