Freedom251 › Web Design Software
Overflow
What Overflow is
Overflow helps users create, present, share, and collect feedback on interactive user flow diagrams. It syncs designs from Figma, Sketch, Adobe XD, and Adobe Photoshop, and diagrams can include connectors, styles, device skins, hotspots, shapes, text, and multiple boards. Users can present playable flows, self-guided Stories, or rapid prototypes. Cloud publications can be shared by link, embedded, protected with a passphrase, exported as PDF or PNG, or printed. Teams can use personal and team folders, invite document editors, and collaborate through comments, mentions, and notifications. Integrations include Confluence, Jira, and Trello. Overflow is available on macOS, Windows, and web browsers. The 14-day trial requires no credit card and includes desktop-app and Cloud-sharing access without limitations. After the trial, that access ends; data is hosted for 60 days and then deleted if no subscription is activated. Pro costs €19.95 per user/month, billed monthly, and includes 1GB cloud storage per user, Cloud sharing, folders, and comments.
Who it suits
Overflow suits design teams that need to turn synced designs into interactive flows and share them for review. Its collaboration tools may also suit teams working with Confluence, Jira, or Trello.
What it does well
- Syncs with four listed design tools.
- Cloud publications can be shared in several ways.
- Supports comments, mentions, and editor invitations.
- Exports are available as PDF or PNG.
- The trial requires no credit card.
What to know first
- There is no free plan.
- Trial access ends after 14 days.
- Data is deleted after 60 days without a subscription.
- Each seat can be used on one computer at a time.
Limits
The 14-day trial provides desktop-app and Cloud-sharing access without limitations. After the trial, that access ends; data remains hosted for 60 days and is then deleted if no subscription is activated. Pro includes 1GB of cloud storage per user.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Pro | per user/month · 1GB cloud storage per user · Overflow Cloud sharing · private and team folders · embedded share links · PDF printing · watermark-free export · comments | €19.95 a month |
| Enterprise | contact sales · Everything in Pro · advanced security permissions · SSO/SAML · unlimited users · pre-approved external reviewers · unlimited cloud storage · priority support | On request |
As overflow.io lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Visit overflow.io.
- Start the 14-day trial; no credit card is required.
- Use the desktop app on macOS or Windows, or use Overflow on the web.
- Sync designs from Figma, Sketch, Adobe XD or Adobe Photoshop.
- Choose Pro at €19.95 per user/month, billed monthly, or contact sales about Enterprise.
Verdict
Overflow combines flow-diagram creation, presentation, and team feedback options. Before starting the trial, note that access ends afterward and hosted data is deleted after 60 days unless a subscription is activated.
Questions
How much does Overflow cost?
Pro costs €19.95 per user/month, billed monthly. Enterprise pricing is available by contacting sales.
Does Overflow have a free plan or trial?
There is no free plan. The 14-day trial requires no credit card and includes desktop-app and Cloud-sharing access without limitations.
Which platforms does Overflow support?
Overflow is available for macOS, Windows and web browsers.
Which design tools does it sync with?
It syncs designs from Figma, Sketch, Adobe XD and Adobe Photoshop.
What does Enterprise include?
Enterprise includes SSO/SAML, unlimited users, unlimited Cloud storage, approved external reviewers, priority support and tailored onboarding.
How does Overflow describe its security practices?
Overflow says its internal practices and policies are ISO/IEC 27001-certified and GDPR-compliant. Its privacy policy describes encryption in transit and firewalls, and says its servers are in the United States with cloud data stored in AWS Amazon Cloud.
Facts from Overflow's own pages
- After trial
- After the trial, desktop-app and Cloud-sharing access ends; data remains hosted for 60 days and is then deleted if no subscription is activated. · overflow.io, 1 Oct 2026
- Annotations
- Text and shapes can be added to provide explanatory context. · overflow.io, 15 Oct 2026
- Boards
- Documents can be divided into multiple boards and subflows for navigation and presentation. · overflow.io, 15 Oct 2026
- Canvas flows
- Users can import designs and arrange screens into bird’s-eye user-flow diagrams. · overflow.io, 15 Oct 2026
- Cloud publishing
- Published flows generate share links that recipients can view without installing the app. · overflow.io, 15 Oct 2026
- Collaboration
- Teams can use personal and shared folders, invite document editors and access version history. · overflow.io, 15 Oct 2026
- Collaboration integrations
- Overflow lists Confluence, Jira and Trello collaboration integrations and supports embedding presentations in collaboration or content-management tools. · overflow.io, 1 Oct 2026
- Company facts
- LinkedIn lists PROTOIO INC as privately held, founded in 2011, headquartered in San Francisco and employing 11–50 people. · linkedin.com, 15 Oct 2026
- Company identity
- PROTOIO INC describes itself as the maker of Proto.io and Overflow. · linkedin.com, 15 Oct 2026
- Connectors
- Connectors can be drawn from layers to screens and customized with colors, labels and endpoints. · overflow.io, 15 Oct 2026
- Data hosting
- The pricing FAQ says cloud data is stored on AWS servers located in the United States. · overflow.io, 15 Oct 2026
- Data location
- Overflow says its servers are located in the United States and cloud data is stored in AWS Amazon Cloud. · overflow.io, 1 Oct 2026
- Data security
- The privacy policy says sensitive data is protected in transit with SSL, TLS or similar encryption and firewalls are used to help prevent external network access. · overflow.io, 1 Oct 2026
- Design synchronization
- The desktop app syncs designs from Figma, Sketch, Adobe XD and Adobe Photoshop. · overflow.io, 15 Oct 2026
- Design syncing
- It integrates with Figma, Sketch, Adobe XD and Adobe Photoshop for syncing designs. · overflow.io, 1 Oct 2026
- Desktop availability
- The editor is offered only for macOS and Windows desktops or laptops; cloud publications work in major desktop and mobile browsers. · support.overflow.io, 15 Oct 2026
- Desktop limit
- Each seat can be activated on multiple computers but used on only one computer at a time. · overflow.io, 1 Oct 2026
- Device skins
- Overflow automatically detects suitable device skins for common devices and applies them to artboards. · overflow.io, 15 Oct 2026
- Diagram features
- Features include customizable connectors, styles, device skins, hotspots, shapes, text and multiple boards. · overflow.io, 1 Oct 2026
- Documentation
- The Learn Center provides installation guidance, workflow articles, FAQs and a release archive. · support.overflow.io, 15 Oct 2026
- Embedding
- Presentations can be embedded in collaboration tools, websites and blogs. · overflow.io, 15 Oct 2026
- Export
- Entire flows or individual boards can be exported to PDF or PNG. · overflow.io, 15 Oct 2026
- Feedback
- Stakeholders can comment on shared publications, with email notifications and mentions available. · overflow.io, 15 Oct 2026
- Headquarters
- San Francisco, California, United States · overflow.io, 23 Sept 2026
Where Overflow stands on Freedom251
- Web Design Software#29 of 41
- User Flow Software#19 of 20