Cypht

Web · Self-hosted

Freedom report

Two barsScore 6.5

Cypht is ranked #48 of 143 in email clients on Freedom251. It runs on Self-hosted, Web. There is a free plan.

Cypht plans and pricing

Cypht Free Free and open source; LGPL v2.1 cypht.org · 11 Oct 2026

Product: Cypht is an open-source webmail client that combines existing email accounts into a unified inbox.
Protocols: It supports IMAP, EWS, and JMAP for reading email, and SMTP for sending.
Email tools: Users can move or copy messages between accounts, use tags and labels, and compose in plain text, HTML, or Markdown.
Search and filters: Cypht supports cross-account search, saved searches, and Sieve filters that can move, copy, or delete messages.
Integrations: The maker lists Tiki, Cloudron, and YunoHost as platforms that embed or package Cypht.
Deployment: The installation guide lists manual, Docker, YunoHost, and Tiki deployment methods.
Security: The security page describes TOTP two-factor authentication, TLS/STARTTLS for IMAP, LDAP, and SMTP, and OAuth2 over IMAP/SMTP for Gmail and Outlook.
Data protection: The maker says session and persistent data are encrypted, with persistent-data encryption keys derived from the user's password, which is not stored.
Email rendering: HTML email is filtered through HTMLPurifier, and external resources are removed before rendering.
Customization: Cypht uses modules that can add features or change behavior without modifying core code.
Intended users: The maker describes Cypht as suitable for ISPs, schools, businesses, and personal use.
Support: The maker invites users to contact the team with questions and says the team aims to respond quickly.
Price from: Free

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