Hylki

Linux

Visit site Alternatives

Freedom report

Two barsScore 6.8

Free tierA free tier is on its own pricing page
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Hylki is ranked #55 of 143 in email clients on Freedom251. It runs on Linux. There is a free plan.

Hylki plans and pricing

All plans

Hylki Free Free and open source · GNU AGPLv3 hylki.hyprlab.co · 12 Oct 2026

Compared on email clients

Free plan: Yes
App coverage: desktop
Unified inbox: Yes
Scheduled sending: Yes

Best Hylki alternatives

See all 20

Three bars Mozilla Thunderbird Free tierOpen source No. 1Free9.5 Two bars Zoho Mail Free tier No. 2$0.08/mo8.3 Two bars Spark Mail Free tier No. 3$8.25/mo8.1 Two bars eM Client Free tier No. 4$3.33/mo8.1 Two bars Mailbutler Smart Assistant Free tier No. 5$7/mo8.1 Two bars Mailspring Free tier No. 6Free8.0

The record

Product: Hylki is a fast, GNOME-native email client for the Linux desktop with a three-pane layout, unified inbox, and OAuth account support.
Email features: It supports IMAP IDLE push, unified folders across accounts, conversation threading, mail filters, coloured tags, and scheduled sending.
Contacts: Hylki integrates with GNOME Contacts to autocomplete recipients as you type.
Integrations: It uses GNOME Online Accounts for OAuth sign-in and supports cloud attachments through Nextcloud, ownCloud, OpenCloud, OneDrive, Dropbox, and Seafile.
Encryption: Hylki supports reading, signing, and encrypting OpenPGP mail through GnuPG on the computer, and says decrypted content is never written to disk.
Privacy: The maker says Hylki has no telemetry or tracking, blocks remote images by default, and stores passwords and tokens in the operating system secret service rather than in plaintext on disk.
Open source: Hylki is released under the GNU AGPLv3 and the maker says it will remain free and open source.
Supported systems: Stable builds are available for 64-bit Linux on Intel/AMD and ARM through Flatpak; an RPM package is offered for Fedora 44 and newer on Intel/AMD.
Beta limit: Beta builds are Intel/AMD x86_64 only and may be unstable; the beta shares accounts, settings, and cached mail with the stable app.
Support: The maker directs users to report bugs or suggest features through GitHub issues and asks them to include the app version, GNOME version, distribution, and reproduction steps.
Intended users: The project says it aims to serve the Linux desktop community with a modern, GNOME-native email client that balances aesthetics and features.
Price from: Free

Where it ranks on Freedom251

Best Email Clients in 2026#55 of 143

Is Hylki yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Hylki

Sources

hylki.hyprlab.co· checked 12 Oct 2026