Alternatives

Products that do what Open Portal does

Box anything on your screen. Ask it, or make something.

1
Marvel (iOS)▲211
Turn Sketches Into Prototypes
2014
2
Sketch▲109
Professional digital design for Mac.
2014
3
Marvel Sketch Plugin▲263
Rapid mobile and web prototyping with Sketch
2015
4IM
I made a macOS app to let me draw on the screen while on video calls▲232
2020 · apps.apple.com
5
Annotate▲202
Free screen recording as prompts
Aug 2026 · xannotate.com
6TS
Turn sketches on paper into app prototypes▲222
2014 · marvelapp.com
7
UI Design System▲180
Starter kit for Sketch to create awesome user interfaces.
2017
8
Screenhance▲168
Make product screenshots look launch-ready in minutes
Dec 2025
9
Draw.io▲132
Create and share diagrams easily
2013
10
User Testing v2 by Marvel▲266
Get video, voice and analytical feedback on designs
2019
11
Artadum▲201
Create beautiful wall art mockups in seconds
2024
12
Sketch Toolbox▲128
A super simple plugin manager for Sketch
2014
13IB
I built a tool to generate triangulated art from images▲296
2021 · github.com
14
Arcade Creator Studio▲223
New creator tools for effortlessly beautiful demos
2023
15
Matter▲127
An expanding UI Kit for Sketch
2014
16
ScreenGeany AI▲93
Ask AI about anything on your screen with a single hotkey
Mar 2026
17CB
Create beautiful mockups and graphics for your app in a few clicks▲22
2020 · previewed.app
18
Arcade Desktop 2.0▲160
Capture product demos anywhere — no extensions required.
2025
19
Draftly▲95
Turn plain English into editable UI components & designs
Dec 2025
20
Drawl for Messenger▲109
Draw it like a boss, send it to your Messenger friends
2015
21
Screenshot Designer▲162
Create engaging App Store screenshots
2017
22
Sketch Deck▲130
Need PowerPoint but hate using it? Get PPTs from sketches.
2014
23MC
my collaborative drawing webapp▲100
2011 · awwapp.com
24BV
bbox-visualizer – Make drawing and labeling bounding boxes easy as cake▲67
2020 · github.com

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