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Developer Tools · head to head

GNU Emacs vs KnowBe4

G

GNU Emacs

Developer Tools

Extensible, customizable free text editor and computing environment

From
Free
Free plan
Yes
Full reviewWebsite
KnowBe4 logo

KnowBe4

Cybersecurity

World's largest security awareness training platform

From
$1/month
Free plan
No
Full reviewWebsite

The short version

  • Only GNU Emacs has a free tier, so it costs nothing to try first.
  • Each has a real cost: GNU Emacs steep learning curve for its default keybindings and Lisp-based configuration.; KnowBe4 published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • They diverge on capability: GNU Emacs covers Emacs Lisp Extensibility, KnowBe4 covers Security awareness training.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which GNU Emacs and KnowBe4 actually diverge.

Attributes where GNU Emacs and KnowBe4 differ
AttributeGNU EmacsKnowBe4
Starting priceFree$1/month
Pricing modelopen-sourcesubscription
Free tierYesNo
Platformslinux, mac, windowsWeb, Mobile, Email
CategoryDeveloper ToolsCybersecurity
Founded19842010

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 GNU Emacs

  • Emacs Lisp Extensibility
  • Package Ecosystem
  • Org Mode
  • Built-in Version Control Interfaces
  • Cross-platform

Only in KnowBe4

  • Security awareness training
  • Phishing simulation
  • Risk assessments
  • Compliance training
  • Incident reporting
  • API access
  • Custom policies
  • Behavior analytics

What people use each for

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

GNU Emacs

  • Programming with deep Lisp-based customizationnot KnowBe4
  • Note-taking and planning with Org modenot KnowBe4
  • Managing email and file systems from a single environmentnot KnowBe4
  • Long-term, keyboard-driven text editing workflowsnot KnowBe4

KnowBe4

  • Security awareness training and simulated phishing for staffnot GNU Emacs
  • Tracking employee susceptibility to phishing over timenot GNU Emacs

Where each one falls short

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

GNU Emacs

  • Steep learning curve for its default keybindings and Lisp-based configuration.
  • Default UI looks dated compared to modern editors without heavy customization.
  • Performance can lag on very large files compared to newer editors.
  • Discoverability of features is poor without prior familiarity or external guides.

KnowBe4

  • Published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • Pricing is banded by seat count, and the lowest band of 25 to 50 seats pays the highest rate
  • Accounts above 1,000 seats have no published price and require a custom quote
  • Third party integrations, Compliance Plus and PhishER Plus are all separately priced per seat add ons
  • The Foundation tier carries 200 training modules against more than 1,000 on Advanced, so content volume is the main gate

Pricing, plan by plan

GNU Emacs

Free
  • FreeFree
    • Full editor and ecosystem, no paid tiers

KnowBe4

$1/month
  • Basic$1/month
    • Per user
    • Training modules
    • Phishing templates
  • Advanced$2/month
    • All Basic features
    • Advanced phishing
    • Risk assessments
  • Pro$3/month
    • All Advanced features
    • API access
    • Custom content

Which should you pick?

Choose GNU Emacs if

  • You need emacs lisp extensibility.
  • You want to start without paying.
  • You work on linux, mac, windows.
  • You also want package ecosystem.
GNU Emacs review

Choose KnowBe4 if

  • You need security awareness training.
  • You work on Web, Mobile, Email.
  • You also want phishing simulation.
KnowBe4 review

Questions people ask

Is GNU Emacs or KnowBe4 better?
Neither clearly leads. GNU Emacs starts at Free and KnowBe4 at $1/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNU Emacs or KnowBe4?
GNU Emacs has a free tier; the other does not. Paid plans start at Free for GNU Emacs and $1/month for KnowBe4.
Does GNU Emacs or KnowBe4 run on more platforms?
GNU Emacs runs on linux, mac, windows. KnowBe4 runs on Web, Mobile, Email.
Can I use GNU Emacs for free?
Yes. GNU Emacs has a free tier, so you can try it without paying. KnowBe4 starts at $1/month.
What is GNU Emacs best used for?
GNU Emacs is most often used for programming with deep lisp-based customization, note-taking and planning with org mode, managing email and file systems from a single environment, long-term, keyboard-driven text editing workflows. Of those, programming with deep lisp-based customization and note-taking and planning with org mode are not what KnowBe4 is typically brought in for.
What can GNU Emacs do that KnowBe4 cannot?
GNU Emacs covers Emacs Lisp Extensibility, Package Ecosystem, Org Mode, Built-in Version Control Interfaces. KnowBe4 covers Security awareness training, Phishing simulation, Risk assessments, Compliance training.

Answered from the vendors’ own pages

GNU Emacs: Is GNU Emacs free, including for commercial use?

Yes, Emacs is free software released under the GNU General Public License, which allows anyone to use, study, modify, and redistribute it, including commercially.

Source
KnowBe4: What does KnowBe4 cost per employee?

KnowBe4 charges per seat per month on a subscription basis. For 51-100 employees, SAT Foundation costs $2.13/month per seat and SAT Advanced costs $3.40/month per seat. Prices decrease with larger employee counts.

Source
GNU Emacs: How do I install Emacs?

On Linux it is available via package managers like apt-get, pacman, dnf, or zypper; on macOS via Homebrew or MacPorts; on Windows via an installer or zip from GNU mirrors; and on Android via F-Droid or GNU FTP.

Source
KnowBe4: Does KnowBe4 offer a free trial?

KnowBe4 does not offer a full free version, but free tools are available separately including assessments and simulators.

Source
GNU Emacs: What platforms does Emacs support?

Emacs runs on GNU/Linux, FreeBSD, NetBSD, OpenBSD, Haiku, macOS, MS Windows, Android (versions 2.2 to 15.0), Solaris, and MS-DOS/FreeDOS.

Source
KnowBe4: Are there add-on costs beyond the base plan?

Yes, optional add-ons include Third-Party Integrations ($1.10-$1.20/seat/month), Compliance Plus ($0.82-$0.93/seat/month), PhishER Plus ($1.15-$1.50/seat/month), and Student Edition ($0.17/seat/month).

Source
GNU Emacs: How is Emacs extended with packages?

Emacs is customized and extended through its Emacs Lisp dialect, with thousands of community packages distributed via repositories like MELPA that add language modes and tools.

Source
KnowBe4: What currencies does KnowBe4 accept?

KnowBe4 accepts pricing in USD, AUD, BRL, CAD, EUR, GBP, SGD, and ZAR.

Source
GNU Emacs: Where can I get source code or development builds?

Emacs source code and development builds are hosted at savannah.gnu.org, in addition to stable releases distributed through GNU mirrors.

Source
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