HTML-Kit vs Overflow
HTML-Kit
htmlkit.com
Overflow
overflow.ioSide by side
| Figure | HTML-Kit | Overflow |
|---|---|---|
| Price from | — | €19.95/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Web Design Software | 7.1 (#38) | 8.7 (#7) |
| Integrations | The page names CSE HTML Validator and TopStyle Lite integrations, plus Windows shell and email-client integration. | Officially listed collaboration integrations include Confluence, Jira and Trello, while presentations can also be embedded in Slack and Dropbox. |
| Support | The TagTree add-on page directs users to Support Forums for feedback. | Enterprise includes priority support and tailored onboarding, while the pricing page directs users to chat support and the Help Center. |
Plans
In their own words
Overflow
Overflow lets users create, present, share, and get feedback on interactive user flow diagrams. It syncs designs from Figma, Sketch, Adobe XD, and Adobe Photoshop. Diagrams can include customizable connectors, styles, device skins, hotspots, shapes, text, and multiple boards. Users can present playable flows, self-guided Stories, and rapid prototypes. Cloud publications can be shared by link, embedded, protected with a passphrase, exported as PDF or PNG, or printed. Collaboration includes personal and team folders, editor invitations, comments, mentions, and notifications, with integrations for Confluence, Jira, and Trello. Overflow is available on macOS, Windows, and the web. Its 14-day trial requires no credit card and gives 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 costs €19.95 per user/month, billed monthly, and includes 1GB cloud storage per user, Cloud sharing, folders, and comments.