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Eclipse vs RAD Studio

Eclipse logo

Eclipse

Technology

The Eclipse Foundation - home to a global community

From
Free
Free plan
Yes
Full reviewWebsite
RAD Studio logo

RAD Studio

Developer Tools

Cross-platform native app development with Delphi and C++Builder

From
$2000/perpetual
Free plan
No
Full reviewWebsite

The short version

  • Only Eclipse has a free tier, so it costs nothing to try first.
  • Each has a real cost: Eclipse high memory consumption and CPU usage, especially with multiple plugins installed; RAD Studio professional edition costs $2,000 for the perpetual license plus $599 for year one maintenance, totaling $2,599 before tax
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Eclipse and RAD Studio actually diverge.

Attributes where Eclipse and RAD Studio differ
AttributeEclipseRAD Studio
Starting priceFree$2000/perpetual
Pricing modelUnknownone-time
Free tierYesNo
PlatformsWindows, macOS, LinuxWeb
CategoryTechnologyDeveloper Tools
Founded2001Unknown

Identical on both: 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 RAD Studio

Nothing recorded that Eclipse does not also cover.

What people use each for

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

Eclipse

  • Java application developmentnot RAD Studio
  • Enterprise software developmentnot RAD Studio
  • Web application developmentnot RAD Studio
  • Plugin developmentnot RAD Studio
  • Educational programmingnot RAD Studio

RAD Studio

  • Building Windows desktop applications with VCL componentsnot Eclipse
  • Creating iOS and Android apps from shared Delphi codebasenot Eclipse
  • Connecting to Oracle databases through FireDAC connectivitynot Eclipse
  • Building REST web services that run on Linux serversnot 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

RAD Studio

  • Professional edition costs $2,000 for the perpetual license plus $599 for year one maintenance, totaling $2,599 before tax
  • Enterprise edition steps up to $3,400 license plus $1,199 maintenance, and Architect edition to $4,416 license plus $2,183 maintenance
  • The perpetual license only entitles the buyer to updates for one year; continued access to new updates and upgrades requires an annually renewable Update Subscription

Pricing, plan by plan

Eclipse

Free

No published plan breakdown. See the Eclipse review.

RAD Studio

$2000/perpetual
  • Professional Edition$2000/perpetual
    • Perpetual License
    • First year maintenance $599
    • Total $2,599 + Tax
  • Enterprise Edition$3400/perpetual
    • Perpetual License
    • First year maintenance $1,199
    • Total $4,599 + Tax
  • Architect Edition$4416/perpetual
    • Perpetual License
    • First year maintenance $2,183
    • Total $6,599 + Tax

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 RAD Studio if

Nothing in the data separates RAD Studio from Eclipse on the points above - pick on price and on how each one feels to use.

RAD Studio review

Questions people ask

Is Eclipse or RAD Studio better?
Neither clearly leads. Eclipse starts at Free and RAD Studio at $2000/perpetual, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Eclipse or RAD Studio?
Eclipse has a free tier; the other does not. Paid plans start at Free for Eclipse and $2000/perpetual for RAD Studio.
Does Eclipse or RAD Studio run on more platforms?
Eclipse runs on Windows, macOS, Linux. RAD Studio runs on Web.
Can I use Eclipse for free?
Yes. Eclipse has a free tier, so you can try it without paying. RAD Studio starts at $2000/perpetual.
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 RAD Studio is typically brought in for.
What can Eclipse do that RAD Studio cannot?
Eclipse covers Java development environment, Extensible plugin architecture, Integrated debugger, Code refactoring.

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
RAD Studio: How much does RAD Studio cost?

RAD Studio uses perpetual licensing: Professional Edition $2,000 perpetual license + $599 first year maintenance ($2,599 total + tax). Enterprise Edition $3,400 license + $1,199 maintenance ($4,599 total + tax). Architect Edition $4,416 license + $2,183 maintenance ($6,599 total + tax).

Source
RAD Studio: What is the difference between RAD Studio editions?

Professional Edition ($2,599 total + tax) targets individual developers. Enterprise Edition ($4,599 total + tax) adds multi-tier app capabilities. Architect Edition ($6,599 total + tax) includes advanced database and cloud features. All three include perpetual licenses.

Source
RAD Studio: Does RAD Studio offer Kai AI integration and discounts?

Yes, adding Kai AI to any edition provides discounts: 25% off Professional ($2,136 + tax), 30% off Enterprise ($3,394 + tax), and 40% off Architect ($4,109 + tax). This promotion is active through August 31, 2026.

Source
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