FREEDOM251

Freedom251 › Communication

Free and open first

Best Email Clients in 2026

Email clients can shape how you handle multiple accounts, messages, and related tasks such as calendar use. Compared on account limits, app coverage, calendar tools, and unified inbox support, these entries also include details on offline access and scheduled sending. Consider which arrangement suits your routine: one combined inbox or separate account views, access when offline, or sending messages at a chosen time. Mozilla Thunderbird, Zoho Mail, and Spark Mail are among the clients shown. Free-plan availability and paid-from pricing provide additional points to compare, while app coverage can help you check compatibility with the devices you use.

  1. 1

    Mozilla Thunderbird

    by Mozilla Thunderbird
    Free plan Open source AndroidLinuxMac+1

    Thunderbird combines multi-account email with calendar, contacts and task tools, with desktop offline access and message scheduling. It is free and open-source, with Android listed for mobile use.

    9.3 Free plan Visit site
  2. 2

    Metis Mail

    by Metis Mail
    Free plan Open source APISelf-hostedWeb

    Choose Metis Mail if you want a unified inbox with an AI agent, phishing analysis, and a free forever open-source plan.

    8.8 Free plan · paid from $12/user/mo Visit site
  3. 3

    aerc

    by aerc
    Free plan Open source AndroidLinuxMac+2

    aerc is a terminal-centered client with broad backend support, asynchronous networking, and GnuPG security features. It fits users comfortable with command-oriented email management.

    8.8 Free plan Visit site
  4. 4

    Avidemux

    Free plan Open source LinuxMacWeb+1
    8.5 Free plan Visit site
  5. 5

    Iceraven

    Free plan Open source Android

    Iceraven offers Android browsing with Gecko, about:config, extra customization, and tab-management options.

    8.1 Free plan Visit site
  6. 6

    Zoho Mail

    by Zoho Mail
    Free plan AndroidAPIExtension+5

    Zoho Mail offers a free custom-domain tier as well as paid options with larger storage allowances and support. Check protocol access and annual billing requirements when choosing a plan.

    7.7 Free plan · paid from $1/user/mo (annual) · 15-day trial Visit site
  7. 7

    Spark Mail

    by Spark Mail
    Free plan AndroidiPhoneMac+1

    Spark Mail combines inbox sorting, multi-account access, calendar tools, and team collaboration across four platforms.

    7.7 Free plan · paid from $8.25/user/mo (annual) · 7-day trial Visit site
  8. 8

    eM Client

    by eM Client
    Free plan AndroidiPhoneMac+1

    eM Client combines email and common productivity tools across desktop and mobile platforms. The free account and device limits, plus the annual and lifetime paid options, are key plan distinctions.

    7.7 Free plan · paid from $39.95/user/yr · 30-day trial Visit site
  9. 9

    Newton Mail

    by Newton Mail
    Free plan AndroidiPhoneMac+1

    Newton Mail combines multi-platform email features with a free tier and paid options for individuals and teams. Check the account, receipt, AI-action, and attachment limits against your needs.

    7.6 Free plan · paid from $5/user/mo (annual) · 14-day trial Visit site
  10. 10

    BlueMail

    by BlueMail
    Free plan AndroidiPhoneLinux+2

    BlueMail brings mail, calendar and message organization features together across five listed desktop and mobile platforms.

    7.6 Free plan · 7-day trial Visit site
  11. 11

    Spike

    Free plan AndroidiPhoneMac+2

    Spike offers distinct email-app and Teamspace options, with plans that vary in addresses, collaboration, storage, and upload limits.

    7.6 Free plan · paid from $4/user/mo (annual) Visit site
  12. 12

    Canary Mail

    Free plan AndroidiPhoneMac+1

    Canary Mail pairs a free multi-account inbox with optional paid features and a seven-day trial. Its individual-user licenses and device limits are worth checking against your needs.

    7.6 Free plan · paid from $3/user/mo (annual) · 7-day trial Visit site
  13. 13

    Mailbutler Smart Assistant

    by Mailbutler Smart Assistant
    Free plan AndroidExtensioniPhone+4

    Smart Assistant brings composition, summaries, and task finding to three major email clients.

    7.6 Free plan · paid from $4/user/mo (annual) · 14-day trial Visit site
  14. 14

    Edison Mail

    by Edison Mail
    Free plan AndroidiPhoneMac+1

    Choose Edison Mail if you want to bring supported accounts together and use inbox controls across mobile and desktop platforms.

    7.6 Free plan · paid from $14.99/mo Visit site
  15. 15

    Roundcube

    by Roundcube
    Free plan LinuxSelf-hostedWeb

    Roundcube provides a customizable webmail interface for operators managing their own email infrastructure. It is not a standalone mail provider, and deployment requires the listed server components.

    7.5 Free plan Visit site
  16. 16

    Mailspring

    by Mailspring
    Free plan LinuxMacWindows

    Mailspring brings multi-account email, offline access, and indexed search to desktop platforms. The free client covers core email tools, while several listed productivity features require Pro.

    7.5 Free plan · paid from $8/mo Visit site
  17. 17

    Epistles Mail

    Free plan AndroidiPhoneLinux+3

    Epistles Mail combines multi-provider email with local storage, offline use, and calendar tools. The free plan has a two-account limit; Pro raises that limit and adds secure sending for $35 per year.

    7.5 Free plan · paid from $35/yr · 14-day trial Visit site
  18. 18

    Guvercin

    Free plan LinuxMacWeb+1

    Guvercin combines mail and organizer tools with offline access and local encrypted storage. Note the early-release status, encryption-key location, and license restrictions before adopting it.

    7.5 Free plan Visit site
  19. 19

    Shortwave

    Free plan AndroidiPhoneMac+2

    Shortwave combines prompt-based email organization with team collaboration and broad app coverage. Its paid tiers mainly change AI search history, thread limits, and filter counts.

    7.5 Free plan · paid from $30/user/mo · 14-day trial Visit site
  20. 20

    Dove

    by Dove
    Free plan AndroidiPhoneMac+2

    Choose Dove if you want one inbox for unlimited accounts, with triage, daily summaries and AI assistance across its supported platforms.

    7.5 Free plan · paid from $20/mo · 7-day trial Visit site
  21. 21

    Meron

    Free plan AndroidiPhoneLinux+2

    Meron combines broad platform support with local-first storage, visual attachment browsing, and flexible email organization.

    7.5 Free plan Visit site
  22. 22

    TypeApp

    Free plan AndroidiPhoneLinux+1

    TypeApp offers a broad multi-account inbox with organization tools, scheduling, and notification controls across several platforms.

    7.5 Free plan Visit site
  23. 23

    Saymail

    by Saymail
    Free plan AndroidiPhoneLinux+2

    Choose Saymail for a no-account email client that brings IMAP, Gmail, and Outlook into one inbox across desktop and mobile.

    7.5 Free plan · paid from €3.99/mo Visit site
  24. 24

    Apple Mail

    Free plan iPhoneMac

    Apple Mail brings multiple email accounts, search, message sorting, and attachment handling together. Its Writing Tools availability is conditional, and the supplied guide covers Mac.

    7.4 Free plan Visit site
  25. 25

    PigeonPost

    Free plan LinuxMacWindows

    Choose PigeonPost if you want a free, open-source desktop client that brings email, calendar, and contacts together with offline access.

    7.4 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

More in Communication