Products

RoundCube

Modern Open Source Webmail, Calendar, Contacts Client

roundcube.net Source★ 7,270GPL-3.0Productivity & Collaboration / Email Clients & Inbox

AI Benchmark
Desktop
Mobile
Monthly visits
127.2K
Down22.8%MoMSep 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Free
No monthly subscription pricing
Creators
roundcube
@roundcube· 2,026 followers
Launched
11y ago
2015-10-19 · Est.

Traffic

Monthly visitsData through Sep 2026 · Oct 2026 pending
Events1 change

Marketing moves

Launches, search & content, referrals, promotions
  • 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
selfh.st★ 7,270 Stars · 1,808 ForksGPL-3.0PHP
2012-05-04Source
Replaces / alternatives to:
Gmail · Microsoft Outlook

Webmail software for the masses

Show HN
2018-11-19Source
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 · MCP / Skill
Last commit 2026-11-11
GitHub Stars
★ 7,270
Forks
1,808
License
GPL-3.0
Primary language
PHP

Traffic sources

Sep 2026

Traffic breakdown

Channels

  • Organic Search74%
  • Direct19%
  • Referrals5%
  • Other1%

Countries

  • United States14%
  • France8%
  • Germany7%
  • Spain4%
  • Netherlands4%

Search

Domain authority —Domain registered 2004-10-11

KeywordMonthly volume
roundcube52.3K
roundcube webmail22.7K
roundcube webmail login7,640
roundcube webmail server510
roundcube correo430

Traffic data: Vaneform

Pricing

Website does not list public plan prices.

Trial: None · Observed 2026-11-03 · Source page

Pages & changes

Tracked since 2015-10-19

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Adopted technology: Cloudflare Browser InsightsFeatures

    —→Cloudflare Browser Insights

Design

First-screen visual analysis & :root CSS

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

Palette · click to copy

5-D design score6.1 / 10
Typography
6.0
Color & Contrast
6.0
Layout & Spacing
7.0
Craft & Polish
6.0
Distinctiveness
5.0

Structure

Fonts
Nunito / Open Sans
Primary visual
Product UI Screenshot / Component
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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