Developer Tools · head to head
ESLint vs Metasploit
Metasploit
Cybersecurity
The world's most used penetration testing framework
- From
- Free
- Free plan
- Yes
The short version
- Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; Metasploit the free Framework edition is command line only; the web interface is Pro only
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which ESLint and Metasploit actually diverge.
| Attribute | ESLint | Metasploit |
|---|---|---|
| Pricing model | Unknown | freemium |
| Platforms | Browser-based JavaScript, Node.js, Any JavaScript environment | Desktop, Cli |
| Category | Developer Tools | Cybersecurity |
| Founded | 2019 | 2000 |
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 ESLint
Nothing recorded that Metasploit does not also cover.
Only in Metasploit
- Exploit database
- Payload generation
- Post-exploitation
- Evasion modules
- Auxiliary scanners
- Social engineering
- Credential harvesting
- Session management
What people use each for
The jobs each tool is most often brought in to do.
ESLint
- Statically analysing JavaScript and JSX to find problems before runtimenot Metasploit
- Automatically fixing issues with syntax-aware rewritesnot Metasploit
- Enforcing a consistent code style across a teamnot Metasploit
- Running as a CI step to block non-conforming codenot Metasploit
- Writing custom rules for project-specific conventionsnot Metasploit
Metasploit
- Penetration testing and exploit development against known vulnerabilitiesnot ESLint
- Validating whether a reported vulnerability is actually exploitablenot ESLint
- Running phishing and credential attack simulations on the Pro editionnot ESLint
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
ESLint
- Slow performance on large codebases compared to newer tools like Oxlint and Biome
- Complexity in configuration from scratch, particularly for TypeScript support
- Limited built-in TypeScript support, requiring separate parsers and coordination with new TypeScript features
Metasploit
- The free Framework edition is command line only; the web interface is Pro only
- Automated exploitation, automated credential attacks and antivirus evading dynamic payloads are restricted to Metasploit Pro
- Reporting, audit wizards, task chains and closed loop vulnerability validation are Pro only
- Rapid7 publishes no price for Metasploit Pro and routes buyers to contact sales
Pricing, plan by plan
ESLint
FreeNo published plan breakdown. See the ESLint review.
Metasploit
Free- Metasploit Framework (OSS)Free
- Open source
- 1500+ exploits
- Command line
- Metasploit ProFree
- Web interface
- Automated testing
- Phishing campaigns
Which should you pick?
Choose ESLint if
- You want to start without paying.
- You work on Browser-based JavaScript, Node.js, Any JavaScript environment.
Choose Metasploit if
- You need exploit database.
- You want to start without paying.
- You work on Desktop, Cli.
- You also want payload generation.
Questions people ask
- Is ESLint or Metasploit better?
- Neither clearly leads. ESLint starts at Free and Metasploit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, ESLint or Metasploit?
- ESLint starts at Free and Metasploit at Free.
- Does ESLint or Metasploit run on more platforms?
- ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. Metasploit runs on Desktop, Cli.
- Can I use ESLint for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is ESLint best used for?
- ESLint is most often used for statically analysing javascript and jsx to find problems before runtime, automatically fixing issues with syntax-aware rewrites, enforcing a consistent code style across a team, running as a ci step to block non-conforming code. Of those, statically analysing javascript and jsx to find problems before runtime and automatically fixing issues with syntax-aware rewrites are not what Metasploit is typically brought in for.
- What can ESLint do that Metasploit cannot?
- Metasploit covers Exploit database, Payload generation, Post-exploitation, Evasion modules.
Answered from the vendors’ own pages
ESLint: Does ESLint automatically fix code issues?
Many problems ESLint finds can be automatically fixed via the --fix flag. ESLint fixes are syntax-aware so you won't experience errors introduced by traditional find-and-replace algorithms.
SourceMetasploit: Is Metasploit Framework free to use?
Yes, Metasploit Framework is available as free open-source software with source code accessible via GitHub. Community support is provided through Slack, GitHub, Twitter, and email.
SourceESLint: How much does ESLint cost?
ESLint is completely free and open-source software maintained by the OpenJS Foundation. The project accepts voluntary donations from sponsors.
SourceMetasploit: What is the difference between Metasploit Framework and Metasploit Pro?
Metasploit Framework is the free open-source version. Metasploit Pro is a commercial offering with customer support from Rapid7, though specific pricing and features are not detailed on the download page.
SourceESLint: Can I write custom ESLint rules?
Yes. You can develop custom rules that work alongside built-in functionality through ESLint's plugin system, allowing complete customization for your project needs.
SourceMetasploit: What support is available for the free Framework version?
Community-based support for Metasploit Framework is available through Slack, GitHub, Twitter, and email ([email protected]). Commercial customers using Metasploit Pro receive customer support from Rapid7.
SourceRelated pages
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