Software · head to head
Deno vs Harness
D
Deno
Software
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Rated
- -
Harness
Software
Software delivery platform across CI, CD, security testing and cost management
- From
- On request
- Rated
- -
The short version
- Only Deno has a free tier, so it costs nothing to try first.
- Each has a real cost: Deno the runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026); Harness essentials plan caps users at 500, organizations at 1, custom dashboards at 5 and concurrent CI pipeline executions at 60, all unlimited only on Enterprise
Where they differ
Only the attributes on which Deno and Harness actually diverge.
Identical on both: platforms (Web), user rating (Not yet rated), category (Unknown).
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Deno
- The runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026)
- Deno Deploy Pro at $20 per month charges $2 per additional million requests and $0.05 per additional CPU hour once the included quota is exceeded, per deno.com/deploy/pricing
Harness
- Essentials plan caps users at 500, organizations at 1, custom dashboards at 5 and concurrent CI pipeline executions at 60, all unlimited only on Enterprise
- Pipeline history is limited to 6 months on the Essentials plan; extending to 25 months requires an Enterprise add-on
- Enterprise plan pricing is quote only, reached by contacting sales rather than a published rate
Pricing, plan by plan
Deno
FreeNo published plan breakdown. See the Deno review.
Harness
On requestNo published plan breakdown. See the Harness review.
Which should you pick?
Choose Harness if
Nothing in the data separates Harness from Deno on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Deno or Harness better?
- Neither clearly leads. Deno starts at Free and Harness at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or Harness?
- Deno has a free tier; the other does not. Paid plans start at Free for Deno and On request for Harness.
- Does Deno or Harness 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. Harness starts at On request.
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