Roundcube
by Roundcube · Open source browser-based IMAP webmail client written in PHP
BenchRank score
Screenshots of Roundcube
Homepage
Overview
Roundcube is a browser-based, multilingual IMAP webmail client written in PHP and run on your own server. It handles MIME and HTML messages, threaded listings, message search, spell checking and multiple sender identities, with an address book supporting groups and LDAP connectors. A plug-in API extends it; the current release is version 1.7.2.
- Best for
- Mail hosts and self-hosters wanting a browser front end for an existing IMAP server
- Pricing
- No prices are shown; the site presents Roundcube as free and open source software to download.
- Runs on
- Self-hosted
Strengths and trade-offs
Strengths
- Browser-based IMAP client with drag-and-drop message management
- Address book with groups, LDAP connectors and find-as-you-type
- Free and open source, with a plug-in API for extensions
- Responsive skin, shared IMAP folders and ACL support
Trade-offs
- Self-hosted download only; you supply the PHP host and IMAP server
- Recent news is almost all security releases, so patching is ongoing
- No support terms, SLA or commercial backing shown on the page
How Roundcube markets itself
A structured read of the promise, proof and page design on Roundcube’s captured homepage.
Homepage capture
“roundcube”
- Angle: Open source / ownership
- Hero: Product screenshot
Pricing
Published plans and prices from Roundcube’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
API quality
Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
Openness
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
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Where this comes from
The Roundcube pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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