Mutt vs Sylpheed (2026): which should you pick?
As of Nov 13, 2026, Sylpheed grades higher than Mutt: 2.8 against 2.4 out of 4.0.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
Sylpheed grades higher on ease of use and platforms. They get the same grade on value for money, the free plan and features.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Mutt if
- Fits if you read mail over SSH on a Unix box
- Works for people who want a tiny client and will write their own config
Look elsewhere if
- Skip it if you want a graphical, web or phone app
- Not for you if you use Windows or macOS
- Skip it if you don't want to write config files
- Watch out: support is mailing lists, IRC and an issue tracker
Pick Sylpheed if
- Fits if you want a small, free mail program for an older computer
- Works for people who like one file per message on disk
Look elsewhere if
- Skip it if you want regular updates, as the latest stable release is from January 2018
- Skip it if you want it on your phone, since no mobile apps are listed
- Watch out: the mailing list was announced as discontinued in September 2025
- Watch out: the 3.8 beta dates from September 2022
How we grade them
| 2.4GPAMuttFair | 2.8GPASylpheedGood | |
|---|---|---|
| Value for money | AFree to download, with the source on GitLab. | AFree under the GNU GPL, with nothing to host. |
| Free plan and trial | AFree software, and the listing shows no paid plans or limits. | AFree under the GNU GPL, with no paid plans and no limits on the program. |
| Features | CText-based mail with IMAP and GPGME. It does the basic job, and the project points to forks for more. | CFiltering, search, GnuPG and plug-ins for the basics of mail. The last stable release is 3.7 from 2018, so don't expect new features. |
| Ease of use | DText only and configured by editing files, so the first hour is setup. | CNo store rating on record. You add each account yourself, and the interface is old but plain. |
| Platforms and integrations | DUnix systems only on record. No Windows or macOS builds are described, and nothing for phones or the web. | CWindows, macOS and Linux, but nothing on phones or the web. A program for computers alone. |
| Best for | a small mail reader for Unix terminals | a light desktop mail client |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Mutt and Sylpheed. How we grade
Price against what you get
Mutt has no paid plan and scores 1.3 out of 4 on features, ease of use and platforms. Sylpheed has no paid plan and scores 2.0.
Sylpheed scores higher for the same starting price. Of the other email apps on the chart, none scores higher than Mutt for less, and none scores higher than Sylpheed for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Sylpheed also covers inbox filtering.
At a glance
| Mutt | Sylpheed | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | Free to download; source is on the project's GitLab. | Free to use, modify and redistribute under the GNU GPL. |
| Free trial | None listed | None listed |
| macOS | ||
| Windows | ||
| Linux | ||
| Made by | The Mutt project | Sylpheed |
| Price read from | gitlab.com | sylpheed.sraoss.jp |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
Mutt
- Text-only; no graphical, web or mobile version.
- The site names Unix operating systems; no Windows or macOS builds are described.
- Support is through mailing lists, IRC and an issue tracker.
Sylpheed
- The latest stable release shown is 3.7 from 31 Jan 2018; 3.8beta1 dates from 14 Sep 2022.
- The Sylpheed mailing list was announced as discontinued in September 2025.
- No mobile apps are listed; the downloads cover desktop systems.
Key features
Mutt
- Text-based interface
- Runs in a terminal and is described by its maintainers as small but very powerful.
- IMAP and GPGME
- Release notes mention IMAP support and GPGME-based signing and encryption.
- Steady bug-fix releases
- The news page shows frequent point releases, including a security fix in release 2.4.3.
- Community resources
- Documentation, a wiki, mailing lists, an IRC channel, a newsgroup and a GitLab project.
- Mutt-based forks
- NeoMutt and similar projects build on Mutt; K-9 Mail's site says it was named for it.
Sylpheed
- One file per message
- Messages are stored one per file, which the site cites as a reason for reliability.
- Filtering and search
- The feature list names powerful filtering and search, plus junk mail control.
- Security
- Lists GnuPG and SSL/TLSv1 support, and a plug-in for automatic attachment encryption.
- Plug-ins
- Extensible through a plug-in system, with a plug-ins page and external command integration.
- Keyboard-oriented
- Built for keyboard operation as well as a conventional GTK+ interface for beginners.
Plans
Mutt
Free$0
Free software; no paid plans are listed.
Sylpheed
Free$0
Free software distributed under the GNU GPL; no paid plans.
Common questions
Which is cheaper, Mutt or Sylpheed?
As of Nov 13, 2026, both Mutt and Sylpheed are free to use.
Which has a free plan, Mutt or Sylpheed?
As of Nov 13, 2026, both Mutt and Sylpheed have a free plan.
Which platforms do Mutt and Sylpheed run on?
As of Nov 13, 2026, only Sylpheed lists macOS and Windows apps. Both list a Linux app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.