RoundCube
Modern Open Source Webmail, Calendar, Contacts Client
roundcube.net Source★ 7,270GPL-3.0Productivity & Collaboration / Email Clients & Inbox
- Monthly visits
- 127.2K
- Down22.8%MoMSep 2026
- Public revenue
- Undisclosed
- No public revenue evidence yet
- Entry price
- Free
- No monthly subscription pricing
- Launched
- 11y ago
- 2015-10-19 · Est.
Traffic
Marketing moves
Launches, search & content, referrals, promotions- Open any IMAP inbox in the browser, with threaded views, an address book and PGP, all hosted on your own server. That's Roundcube (@roundcube), new on OpenAlternative. https://openalternative.co/roundcube
@ossalternative · 2026-10-22 · 1 likes · 0 reposts · 205 views
Launched on Show HN (2 pts)Launch
Better Gmail interface — This isn't exactly a Show HN as in "I made this", but more like "Hey, you should know about this". --- If you dislike new Gmail's interfac…
Nov 19, 2018 · 7y agoLaunch page
Launched on Product HuntLaunch
Modern Open Source Webmail, Calendar, Contacts Client
Oct 19, 2015 · 11y agoLaunch page
Third-party reviews & case dossiers
Acquisition breakdowns, engineer reviews & open-source metrics- Replaces / alternatives to:
- Gmail · Microsoft Outlook
Webmail software for the masses
- Post excerpt:
- This isn't exactly a Show HN as in "I made this", but more like "Hey, you should know about this". --- If you dislike new Gmail's interface, but don't want to go back to the really primitive old one, you can install Roundcube on your server, and log into Gmail with it. It has a really nice UI that's responsive (looks like this: https://i.imgur.com/7QMBMxc.pn
Open Source & Self-Hosting
- GitHub Stars
- ★ 7,270
- Forks
- 1,808
- License
- GPL-3.0
- Primary language
- PHP
Traffic sources
Traffic breakdown
Channels
- Organic Search74%
- Direct19%
- Referrals5%
- Other1%
Countries
- United States14%
- France8%
- Germany7%
- Spain4%
- Netherlands4%
Search
Domain authority —Domain registered 2004-10-11
| Keyword | Monthly volume |
|---|---|
| roundcube | 52.3K |
| roundcube webmail | 22.7K |
| roundcube webmail login | 7,640 |
| roundcube webmail server | 510 |
| roundcube correo | 430 |
Traffic data: Vaneform
Pricing
Website does not list public plan prices.
Trial: None · Observed 2026-11-03 · Source page
Pages & changes
Key pages
Weekly snapshots- Homeroundcube.net/
- Featuresroundcube.net/screens/ Snapshot 2026-11-03
Design
Enterprise Clean (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.
First-screen preview · click to zoom
First-screen pitch & conversion flow
“roundcube open source webmail software”
Split Copy & Visual hero structure paired with download app / install extension CTA and no explicit trust bar.
Conversion path: Split Copy & Visual + Product UI Screenshot / Component → Download App / Install Extension
- Category Positioning Anchor
- Large Hero Product Shot
Palette · click to copy
- Typography
- 6.0
- Color & Contrast
- 6.0
- Layout & Spacing
- 7.0
- Craft & Polish
- 6.0
- Distinctiveness
- 5.0
Structure
- Fonts
- Nunito / Open Sans
- Hero layout
- Split Copy & Visual
- Primary visual
- Product UI Screenshot / Component
- Conversion CTA
- Download App / Install Extension
- Social proof
- No Explicit Trust Bar
- Navigation
- Full-Width Top Bar
- Theme & density
- Light · Balanced
- Corners & depth
- Medium Radius · With shadow
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Enterprise Clean
Trustworthy blue-anchored palette, structured grids, and prominent customer logo walls.
## Design Tokens
```css
:root {
--background: #e7f4fb;
--surface: #ffffff;
--foreground: #1c1c1c;
--muted-foreground: #6b7280;
--accent: #37a6e6;
--radius: 8px;
--font-heading: "Nunito", ui-sans-serif, system-ui, sans-serif;
--font-body: "Open Sans", ui-sans-serif, system-ui, sans-serif;
}
```
Color area ratio: Background #E7F4FB (~32%) · Surface #FFFFFF (~40%) · Text #1C1C1C (~12%) · Muted Text #6B7280 (~8%) · Accent #37A6E6 (~8%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.
## Layout & Conversion Structure
- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Medium Radius; use elevation shadows to separate layers
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Download App / Install Extension
- Headline hook: Category Positioning Anchor
- Hero components: Large Hero Product Shot
- Spatial layout notes: Split Copy & Visual hero structure paired with download app / install extension CTA and no explicit trust bar.
- Visual summary: Enterprise Clean (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.
## Avoid
- Experimental navigation patterns
- Low-legibility decorative fonts
- Visual novelty that obscures the value proposition
Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.
Questions & evidence
- How much website traffic does RoundCube get?
- Vaneform estimates 127.2K website visits in 2026-09. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
- What is RoundCube and what platforms does it support?
- RoundCube is catalogued under Email Clients & Inbox: Modern Open Source Webmail, Calendar, Contacts Client. Supported platforms: Web.
- Is RoundCube open source?
- RoundCube has a public repository (https://github.com/roundcube/roundcubemail) under the GPL-3.0 license, recording 7,270 GitHub stars, and supporting self-hosted deployment.Source
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