Developer Tools · head to head
Deno vs Microsoft Defender
Deno
Developer Tools
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Free plan
- Yes
Microsoft Defender
Cybersecurity
Always-on protection for you and your family's data and devices
- From
- $12/month
- Free plan
- No
The short version
- Only Deno has a free tier, so it costs nothing to try first.
- Each has a real cost: Deno egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications; Microsoft Defender defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Prices and features above were last checked on 29 August 2026.
Where they differ
Only the attributes on which Deno and Microsoft Defender actually diverge.
| Attribute | Deno | Microsoft Defender |
|---|---|---|
| Starting price | Free | $12/month |
| Pricing model | freemium | subscription |
| Free tier | Yes | No |
| Category | Developer Tools | Cybersecurity |
Identical on both: platforms (Web), user rating (Not yet rated).
What people use each for
The jobs each tool is most often brought in to do.
Deno
- Running TypeScript natively without transpilation overheadnot Microsoft Defender
- Migrating Node.js applications to secure-by-default runtimenot Microsoft Defender
- Deploying edge functions and serverless containers seamlesslynot Microsoft Defender
- Consolidating developer tools into single binarynot Microsoft Defender
Microsoft Defender
- Endpoint security and threat protectionnot Deno
- Identity and access securitynot Deno
- Email threat protectionnot Deno
- SaaS application security monitoringnot 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
Microsoft Defender
- Defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Some Defender products use pay-as-you-go pricing with variable costs
- Prices vary based on Microsoft agreements, requiring sales contact for custom quotes
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
Microsoft Defender
$12/month- Microsoft Defender Suite$12/month
- Endpoint protection
- Identity threat detection
- Email security
- Microsoft 365 E5 with Defender$60/month
- Includes Defender Suite
- Microsoft Teams included
- Comprehensive security and compliance
- Microsoft Defender Vulnerability Management Add-on$2/month
- Vulnerability scanning and management
- One-month free trial available
- Annual commitment required
Which should you pick?
Choose Microsoft Defender if
Nothing in the data separates Microsoft Defender from Deno on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Deno or Microsoft Defender better?
- Neither clearly leads. Deno starts at Free and Microsoft Defender at $12/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or Microsoft Defender?
- Deno has a free tier; the other does not. Paid plans start at Free for Deno and $12/month for Microsoft Defender.
- Does Deno or Microsoft Defender run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- Can I use Deno for free?
- Yes. Deno has a free tier, so you can try it without paying. Microsoft Defender starts at $12/month.
- 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 Microsoft Defender 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.
SourceMicrosoft Defender: How much does Microsoft Defender Suite cost?
Microsoft Defender Suite costs $12/user/month (paid yearly), but requires existing Microsoft 365 E3 or equivalent base licensing. It includes endpoint protection, identity threat detection, email security, and SaaS application monitoring.
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.
SourceMicrosoft Defender: What add-ons are available for Microsoft Defender?
Microsoft Defender Vulnerability Management Add-on costs $2/user/month with annual commitment and includes a one-month free trial. Additional pay-as-you-go products include External Attack Surface Management, Cloud Security Posture Management, and Sentinel.
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.
SourceMicrosoft Defender: Is Defender included in Microsoft 365 E5?
Yes, Microsoft Defender Suite is included in Microsoft 365 E5 at $60/user/month (paid yearly with Teams). Prices may vary based on Microsoft agreements, requiring contact with Sales for customized quotes.
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.
SourceRelated pages
More on Microsoft Defender
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