Insomnia vs LangSmith

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.

What people use each for

The jobs each tool is most often brought in to do.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Pricing, plan by plan

Which should you pick?

Questions people ask

Is Insomnia or LangSmith better?

Neither clearly leads. Insomnia starts at Free and LangSmith at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Insomnia or LangSmith?

Insomnia has a free tier; the other does not. Paid plans start at Free for Insomnia and On request for LangSmith.

Does Insomnia or LangSmith run on more platforms?

Insomnia runs on Windows, MacOS, Linux, Web. LangSmith runs on Web.

Can I use Insomnia for free?

Yes. Insomnia has a free tier, so you can try it without paying. LangSmith starts at On request.

What is Insomnia best used for?

Insomnia is most often used for sending and debugging http, graphql and grpc requests, storing collections in git rather than a vendor cloud, mocking an api endpoint before it exists, running collections in ci with the inso cli. Of those, sending and debugging http, graphql and grpc requests and storing collections in git rather than a vendor cloud are not what LangSmith is typically brought in for.

What can Insomnia do that LangSmith cannot?

Insomnia covers REST API Client, GraphQL Support, gRPC Support, GitHub.