Developer Tools · head to head
Deno vs ESLint
Deno
Developer Tools
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Deno egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications; ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome
- Prices and features above were last checked on 29 August 2026.
Where they differ
Only the attributes on which Deno and ESLint actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Developer Tools).
What people use each for
The jobs each tool is most often brought in to do.
Deno
- Running TypeScript natively without transpilation overheadnot ESLint
- Migrating Node.js applications to secure-by-default runtimenot ESLint
- Deploying edge functions and serverless containers seamlesslynot ESLint
- Consolidating developer tools into single binarynot ESLint
ESLint
- Statically analysing JavaScript and JSX to find problems before runtimenot Deno
- Automatically fixing issues with syntax-aware rewritesnot Deno
- Enforcing a consistent code style across a teamnot Deno
- Running as a CI step to block non-conforming codenot Deno
- Writing custom rules for project-specific conventionsnot Deno
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Deno
- Egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications
- CPU time overage is $0.10/hour on Pro and Builder tiers, adding to costs for compute-intensive workloads
- Enterprise pricing is not disclosed; requires sales contact
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
Pricing, plan by plan
Deno
Free- FreeFree
- 1 million requests/month
- 20GB egress bandwidth
- 10 apps
- Pro$20/month
- 5 million requests/month
- 200GB egress
- 50 apps
- Builder$200/month
- 25 million requests/month
- 2,000GB egress
- 10,000 apps
- Enterprise$null/month
- Custom limits on all metrics
- 99.95% reliability SLA
- Email support with SLA
ESLint
FreeNo published plan breakdown. See the ESLint review.
Which should you pick?
Choose ESLint if
- You want to start without paying.
- You work on Browser-based JavaScript, Node.js, Any JavaScript environment.
Questions people ask
- Is Deno or ESLint better?
- Neither clearly leads. Deno starts at Free and ESLint at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or ESLint?
- Deno starts at Free and ESLint at Free.
- Does Deno or ESLint run on more platforms?
- Deno runs on Web. ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment.
- Can I use Deno for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Deno best used for?
- Deno is most often used for running typescript natively without transpilation overhead, migrating node.js applications to secure-by-default runtime, deploying edge functions and serverless containers seamlessly, consolidating developer tools into single binary. Of those, running typescript natively without transpilation overhead and migrating node.js applications to secure-by-default runtime are not what ESLint is typically brought in for.
Answered from the vendors’ own pages
Deno: How much does Deno Deploy cost?
Deno Deploy offers a free tier at $0/month, Pro at $20/month, and Builder at $200/month. Enterprise has custom pricing. All plans include base request and bandwidth limits, with overage charges for additional usage.
SourceESLint: 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.
SourceDeno: What are Deno Deploy's overage charges?
Egress bandwidth overages cost $0.20 per GB. CPU time overages are $0.10 per hour on Pro and Builder tiers. Memory time and KV database operations also incur charges beyond included limits.
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.
SourceDeno: How many apps can I deploy on Deno's free plan?
The free tier includes 10 apps with up to 1 concurrent build. Pro tier supports 50 apps with 3 concurrent builds, and Builder supports 10,000 apps with 20 concurrent builds.
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.
SourceDeno: How many team members can access Deno Deploy?
The free tier supports up to 3 team members. Pro supports 10 team members. Builder supports 25 team members. Enterprise has custom seat limits.
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