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I built UI Generator to give anyone a quick way to create realistic app mockups without any sign‑up or uploads. It lets you pick a screen type or upload your own, choose an iPhone 17 or MacBook, set angle and background, then download a high‑resolution PNG. I’d love your feedback – try uploading a screenshot and see if the download works, and let me know what breaks.
More Design tools →74 free dev tools →
- Free UI mockup generator
- No sign‑up required
- Download ready PNG in seconds
- Pick screen, device and angle
- Use for landing pages, pitch decks, presentations
- Free UI mockup generator – no sign‑up required
- Download ready PNGs in seconds
- Choose device, angle, background and size
- Supports dashboards, finance apps, CRMs, chats, shops, etc.
- Export formats PNG, JPG, WebP
- Works for landing pages, pitch decks, presentations
UI Generator creates free, one-click mockup PNGs of app screens on iPhone 17 or MacBook devices.
- for
- Designers, marketers and product teams needing quick UI screenshots.
- pricing
- free
Key features
- Device selection — Choose from iPhone 17 Pro, iPhone Air, MacBook Pro 14″/16″, MacBook Air 13″ or a browser frame.
- Angle & background control — Pick straight, left, right, from-above or floating angles and add shadows or transparent backgrounds.
- Custom screenshot upload — Drag-and-drop or paste your own screen image; processing stays in the browser.
- Multiple export formats — Download high-resolution PNG, JPG or WebP with optional transparent background.
- Preset screen types — Select from 18 interface categories such as dashboards, finance apps, chats, e-commerce, etc.
- No sign-up required — All features are free and usable without creating an account.
Use cases
- Create hero images for landing pages
- Generate app screenshots for pitch decks or investor presentations
- Produce mockups for blog posts, Product Hunt launches or social media
UI Generator vs alternatives
 UI Generator |  Dynamic Mockups - Mockup Generator API |  Picasso - App Store Screenshot Tool |  Figma |  Canva | |
|---|---|---|---|---|---|
| Best for | Instant device mockups for presentations | Automated mockup generation at scale | App Store product page screenshots | Team UI/UX design and prototyping | Broad graphic design and layout creation |
| Pricing | Free | Subscription | Subscription | Subscription | Subscription |
| DevHunt upvotes | 1 | 30 | 29 | 1 | 0 |
| Launched | Nov 2026 | Nov 2024 | Feb 2024 | — | — |
- UI Generator vs Dynamic Mockups - Mockup Generator API: Provides an API for bulk realistic mockup generation, whereas UI Generator is a manual web UI.
- UI Generator vs Picasso - App Store Screenshot Tool: Focused on App Store screenshots with conversion-focused templates, not general device mockups.
- UI Generator vs Figma: Full-featured collaborative design platform, not a single-click mockup exporter.
- UI Generator vs Canva: General online design tool with AI features, not specialized in instant device mockups.
UI Generator FAQ
Is UI Generator free?+
Yes, every interface, device, angle and export size is free and no account is required.
Can I use my own screenshot?+
Yes, you can drag an image onto the preview or paste it; it is processed locally in the browser.
Which devices are supported?+
iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, MacBook Pro 14″, MacBook Pro 16″, MacBook Air 13″, a browser window, or no frame.
Can I export with a transparent background?+
Yes, select the checkered background swatch and download PNG or WebP with transparency.
Can I create isometric or 3-D mockups?+
Yes, choose left, right, from-above or floating angles for a 3-D perspective view.
Summarized by DevHunt from uigenerator.org · Nov 9, 2026. Details may change; check the official site.
