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Developer Tools · head to head

ESLint vs TunnelBear

ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Free plan
Yes
Full reviewWebsite
T

TunnelBear

Cybersecurity

Consumer VPN with a limited free tier and a bear-themed, beginner-friendly app

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; TunnelBear free plan's data cap is small compared to competitors offering more generous free allowances.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which ESLint and TunnelBear actually diverge.

Attributes where ESLint and TunnelBear differ
AttributeESLintTunnelBear
Pricing modelUnknownfreemium
PlatformsBrowser-based JavaScript, Node.js, Any JavaScript environmentwindows, mac, linux, ios, android
CategoryDeveloper ToolsCybersecurity
Founded2019Unknown

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 TunnelBear does not also cover.

Only in TunnelBear

  • Encrypted VPN tunnel
  • Server location switching
  • GhostBear obfuscation
  • Browser extensions
  • Teams account 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 TunnelBear
  • Automatically fixing issues with syntax-aware rewritesnot TunnelBear
  • Enforcing a consistent code style across a teamnot TunnelBear
  • Running as a CI step to block non-conforming codenot TunnelBear
  • Writing custom rules for project-specific conventionsnot TunnelBear

TunnelBear

  • Casual browsing protection on public Wi-Finot ESLint
  • Occasional geo-unblocking with a light free allowancenot ESLint
  • Bypassing network-level VPN blocking via obfuscationnot ESLint
  • Managing VPN access for a small team with centralized billingnot 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

TunnelBear

  • Free plan's data cap is small compared to competitors offering more generous free allowances.
  • Lacks advanced features like dedicated IP addresses or split-tunneling controls found in some rival VPNs.
  • Server network is smaller than large competitors like NordVPN or ExpressVPN.
  • No standalone router-level app, limiting whole-network protection options.

Pricing, plan by plan

ESLint

Free

No published plan breakdown. See the ESLint review.

TunnelBear

Free
  • FreeFree
    • 2GB of data per month
    • Access to VPN servers
    • Unlimited devices
  • Unlimited$9.99/month
    • Unlimited monthly data
    • All server locations
    • Cheaper on annual/3-year billing
  • Teams$undefined/month
    • Unlimited data
    • 5 connected devices per user
    • Dedicated account manager

Which should you pick?

Choose ESLint if

  • You want to start without paying.
  • You work on Browser-based JavaScript, Node.js, Any JavaScript environment.
ESLint review

Choose TunnelBear if

  • You need encrypted vpn tunnel.
  • You want to start without paying.
  • You work on windows, mac, linux, ios, android.
  • You also want server location switching.
TunnelBear review

Questions people ask

Is ESLint or TunnelBear better?
Neither clearly leads. ESLint starts at Free and TunnelBear at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESLint or TunnelBear?
ESLint starts at Free and TunnelBear at Free.
Does ESLint or TunnelBear run on more platforms?
ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. TunnelBear runs on windows, mac, linux, ios, android.
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 TunnelBear is typically brought in for.
What can ESLint do that TunnelBear cannot?
TunnelBear covers Encrypted VPN tunnel, Server location switching, GhostBear obfuscation, Browser extensions.

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.

Source
ESLint: 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.

Source
ESLint: 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.

Source
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