Softwr

Technology · head to head

Eclipse vs Keila

Eclipse logo

Eclipse

Technology

The Eclipse Foundation - home to a global community

From
Free
Rated
-
Full reviewWebsite
Keila logo

Keila

Email Marketing

AGPL newsletter tool from Germany, self-hostable or hosted in the EU with no free plan

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Eclipse high memory consumption and CPU usage, especially with multiple plugins installed; Keila there is no free hosted plan at all, stated as deliberate policy, so unlike almost every competitor there is no way to run a small list at zero cost without self-hosting it yourself.
  • They diverge on capability: Eclipse covers Java development environment, Keila covers Priced by emails sent.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Eclipse and Keila actually diverge.

Attributes where Eclipse and Keila differ
AttributeEclipseKeila
Pricing modelUnknownPer month by emails sent
PlatformsWindows, macOS, LinuxWeb, Linux, Self-hosted
CategoryTechnologyEmail Marketing
Founded2001Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Eclipse

  • Java development environment
  • Extensible plugin architecture
  • Integrated debugger
  • Code refactoring
  • Version control integration
  • Build automation
  • Multi-language support
  • Rich client platform

Only in Keila

  • Priced by emails sent
  • Bring your own sender
  • Self-hosting
  • EU hosting
  • Sign-up forms
  • Segmentation
  • Markdown and block editor
  • Multiple projects

What people use each for

The jobs each tool is most often brought in to do.

Eclipse

  • Java application developmentnot Keila
  • Enterprise software developmentnot Keila
  • Web application developmentnot Keila
  • Plugin developmentnot Keila
  • Educational programmingnot Keila

Keila

  • A membership organisation holding forty thousand contacts but sending only one newsletter a month, where contact-metered pricing would cost many times morenot Eclipse
  • A European publisher or public body that needs subscriber data held in the EU under a GDPR-friendly arrangementnot Eclipse
  • A technical team that wants to self-host its newsletter tool and route sending through its existing AWS SES accountnot Eclipse
  • An agency running several separate client lists that does not want to pay per project or per additional listnot Eclipse

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Eclipse

  • High memory consumption and CPU usage, especially with multiple plugins installed
  • Slow startup times and performance degradation with large projects or many open editors
  • Requires configuration of eclipse.ini file to optimize heap sizes for adequate performance
  • User interface considered outdated compared to modern IDE alternatives
  • User base fell from 39% of Java developers in 2024 to 28% in 2025, indicating market decline

Keila

  • There is no free hosted plan at all, stated as deliberate policy, so unlike almost every competitor there is no way to run a small list at zero cost without self-hosting it yourself.
  • Marketing automation is minimal, with none of the behavioural triggers, journey builders or e-commerce revenue attribution that Klaviyo, Brevo and Mailchimp treat as table stakes.
  • The self-hosted route puts deliverability entirely on you: reputation, SPF, DKIM, DMARC, warm-up and bounce handling are your problem, and a badly configured instance will land in spam folders.
  • It is a small project from a small company, so the integration ecosystem is thin and there is no partner network, template marketplace or large body of community expertise to draw on.
  • Email volume tiers step in fixed blocks, so an organisation whose sending is uneven across the year either overbuys at the annual peak or has to change plan repeatedly.

Pricing, plan by plan

Eclipse

Free

No published plan breakdown. See the Eclipse review.

Keila

Free
  • Self-hostedFree
    • AGPL-3.0-or-later licence with no fee
    • Official Docker image and sample compose file
    • You supply hosting and a sending backend
  • Keila XS$8/month
    • Two thousand emails per month
    • Unlimited contacts and projects
    • Send with Keila or bring your own email server
  • Keila M$32/month
    • Fifteen thousand emails per month
    • Unlimited contacts and projects
    • Sign-up forms and segmentation
  • Keila XXL$256/month
    • Two hundred and fifty thousand emails per month
    • Unlimited contacts and projects
    • Intermediate tiers at 16, 64 and 128 EUR for 5,000, 50,000 and 100,000 emails

Which should you pick?

Choose Eclipse if

  • You need java development environment.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want extensible plugin architecture.
Eclipse review

Choose Keila if

  • You need priced by emails sent.
  • You want to start without paying.
  • You work on Web, Linux, Self-hosted.
  • You also want bring your own sender.
Keila review

Questions people ask

Is Eclipse or Keila better?
Neither clearly leads. Eclipse starts at Free and Keila at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Eclipse or Keila?
Eclipse starts at Free and Keila at Free.
Does Eclipse or Keila run on more platforms?
Eclipse runs on Windows, macOS, Linux. Keila runs on Web, Linux, Self-hosted.
Can I use Eclipse for free?
Both have a free tier, so you can try either at no cost before committing.
What is Eclipse best used for?
Eclipse is most often used for java application development, enterprise software development, web application development, plugin development. Of those, java application development and enterprise software development are not what Keila is typically brought in for.
What can Eclipse do that Keila cannot?
Eclipse covers Java development environment, Extensible plugin architecture, Integrated debugger, Code refactoring. Keila covers Priced by emails sent, Bring your own sender, Self-hosting, EU hosting.

Answered from the vendors’ own pages

Eclipse: How much does Eclipse IDE cost?

Eclipse IDE is completely free and open-source, released under the Eclipse Public License 2.0.

Source
Keila: Is Keila free?

The software is, under AGPL-3.0-or-later, if you self-host. The hosted service has no free plan by deliberate policy and starts at 8 EUR a month.

Keila: How is the hosted service priced?

By emails sent, from 8 EUR for two thousand up to 256 EUR for two hundred and fifty thousand a month. Contacts and projects are unlimited on every tier.

Keila: Can I use my own email provider?

Yes. AWS SES, Sendgrid, Mailgun, Postmark, generic SMTP or a personal inbox are all supported as sending backends.

Keila: Are there discounts?

Pentacent offers reduced rates to nonprofits and open source projects on request.

Share

Related pages

More on Eclipse

More on Keila

Keep looking

Other head to heads