Proto.io

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Proto.io is ranked #9 of 40 in web design software on Inferse, made by Proto.io (44 Montgomery St. STE 300, San Francisco, CA 94104, United States). It runs on Android, iOS, Web. There is a free plan. A free trial is offered. Paid plans start at $29/mo.

Compared on web design software

Free plan: Yesproto.io
Design systems: Yesproto.io

Facts

Web-Based No-Code: Proto.io is web based and requires no coding skills.proto.io · 28 Sept 2026
Free Trial: The trial lasts 15 days and requires no credit card.proto.io · 28 Sept 2026
Free Plan Limits: The free plan includes 1 user, 1 active project, 5 prototype screens, and 10 MB storage.proto.io · 28 Sept 2026
Free Plan Exports: The free plan supports HTML, PNG, and PDF export, plus design-tool import and branding.proto.io · 28 Sept 2026
Free Plan Sharing: The free plan includes single-click sharing but no additional reviewers.proto.io · 28 Sept 2026
Supported Platforms: Proto.io supports iOS, Android, and web prototypes, with native iOS and Android apps.proto.io · 28 Sept 2026
UI Components: The product includes more than 250 UI components that mimic native behavior.proto.io · 28 Sept 2026
Template Library: Proto.io provides more than 1,000 customizable web and mobile templates.proto.io · 28 Sept 2026
Digital Assets: The library includes more than 6,000 static and animated icons, stock images, and sound effects.proto.io · 28 Sept 2026
Interaction Options: Proto.io offers over 80 events and over 40 actions, with nested and multidirectional scrolling.proto.io · 28 Sept 2026
Screen Transitions: Users can connect screens with 18 built-in transitions.proto.io · 28 Sept 2026
Sharing And Export: Users can share links, export to PDF, PNG, or HTML, and share snapshots at exact points in time.proto.io · 28 Sept 2026
User Testing: Proto.io supports user testing with popular user testing platforms.proto.io · 28 Sept 2026
Team Security: Its granular security model supports working alone or in teams of any size.proto.io · 28 Sept 2026
SSL Encryption: Paid plans include 256-bit SSL encryption, and Proto.io uses industry-standard SSL security.proto.io · 28 Sept 2026
Support Resources: Resources include documentation, sample projects, video tutorials, guides, webinars, and case-by-case support.proto.io · 28 Sept 2026