Pick two. The table shows their rating, their Openness score and the facts behind it, each from the vendor's own pages.
From $12 a month
Balsamiq is a wireframing and prototyping tool built for speed over polish. If you need to sketch out a new app screen, a website layout, or a workflow before anyone writes a line of code, Balsamiq gets you there in minutes. You drag and drop pre-built UI components onto a canvas, link screens together into clickable prototypes, and share a link with your team. The deliberately low-fidelity, hand-drawn style keeps everyone focused on function and flow instead of arguing about colors and fonts. The tool is trusted by teams at OpenAI, Zapier, GitLab, Nvidia, and PwC. It runs entirely in the browser as Balsamiq Cloud, so there is nothing to install. You can also get desktop versions and plugins for Confluence and Jira if your team lives in Atlassian. Balsamiq charges per project with unlimited users on every plan. Balsamiq recently added Balsamiq AI (currently in beta), which lets you describe a screen in plain language and get a wireframe generated automatically.
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Balsamiq AI (beta) lets you describe a screen in plain English and generates a wireframe automatically. You can also convert low-fidelity wireframes into more realistic interactive prototypes.
Balsamiq is the fastest way to turn a product idea into something your whole team can see and react to. The unlimited-user pricing is a real advantage. However, it only covers wireframing — you will need a higher-fidelity tool eventually.