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Testing · head to head

Insomnia vs Notepad++

Insomnia logo

Insomnia

Testing

REST and GraphQL API client for development and testing

From
Free
Rated
-
Full reviewWebsite
Notepad++ logo

Notepad++

Developer Tools

Free, lightweight source code and text editor for Windows

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Insomnia git Sync on the free tier covers up to 3 users only; Notepad++ windows-only, with no official native macOS or Linux build.
  • They diverge on capability: Insomnia covers REST API Client, Notepad++ covers Syntax Highlighting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Insomnia and Notepad++ actually diverge.

Attributes where Insomnia and Notepad++ differ
AttributeInsomniaNotepad++
Pricing modelfreemiumopen-source
PlatformsWindows, MacOS, Linux, Webwindows
CategoryTestingDeveloper Tools
Founded20102003

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 Insomnia

  • REST API Client
  • GraphQL Support
  • gRPC Support
  • GitHub
  • GitLab
  • Slack
  • Windows support
  • MacOS support

Only in Notepad++

  • Syntax Highlighting
  • Tabbed Editing
  • Plugin System
  • Regular Expression Search
  • Function List

What people use each for

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

Insomnia

  • Sending and debugging HTTP, GraphQL and gRPC requestsnot Notepad++
  • Storing collections in Git rather than a vendor cloudnot Notepad++
  • Mocking an API endpoint before it existsnot Notepad++
  • Running collections in CI with the Inso CLInot Notepad++
  • Environment management across staging and productionnot Notepad++

Notepad++

  • Quick editing of code and config files on Windowsnot Insomnia
  • Batch find-and-replace across multiple files with regexnot Insomnia
  • Lightweight alternative to a full IDE for scriptingnot Insomnia
  • Viewing and editing logs or large text filesnot Insomnia

Where each one falls short

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

Insomnia

  • Git Sync on the free tier covers up to 3 users only
  • Mock servers are capped at 1,000 requests a month on free, then $10 per 25,000
  • Role-based access control requires Pro at $12 per user per month
  • SSO, SCIM and vault integrations are Enterprise only at $45 per user per month
  • Working without an account is limited to the local-only Scratch Pad

Notepad++

  • Windows-only, with no official native macOS or Linux build.
  • Lacks built-in debugging or project/build management found in full IDEs.
  • Plugin quality and maintenance varies since they are community-contributed.
  • No built-in version control integration beyond what plugins provide.

Pricing, plan by plan

Insomnia

Free
  • EssentialsFree
    • unlimited Cloud/Local projects
    • up to 3 users with Git Sync
    • 1,000 mock server requests/month
  • Pro$12/user/month
    • unlimited users with Git Sync access
    • unlimited organizations
    • role-based access control
  • Enterprise$45/user/month
    • Kong Konnect integration
    • SSO (SAML/OIDC)
    • SCIM provisioning

Notepad++

Free
  • FreeFree
    • Full editor and plugin ecosystem, no paid tiers

Which should you pick?

Choose Insomnia if

  • You need rest api client.
  • You want to start without paying.
  • You work on Windows, MacOS, Linux, Web.
  • You also want graphql support.
Insomnia review

Choose Notepad++ if

  • You need syntax highlighting.
  • You want to start without paying.
  • You work on windows.
  • You also want tabbed editing.
Notepad++ review

Questions people ask

Is Insomnia or Notepad++ better?
Neither clearly leads. Insomnia starts at Free and Notepad++ at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Insomnia or Notepad++?
Insomnia starts at Free and Notepad++ at Free.
Does Insomnia or Notepad++ run on more platforms?
Insomnia runs on Windows, MacOS, Linux, Web. Notepad++ runs on windows.
Can I use Insomnia for free?
Both have a free tier, so you can try either at no cost before committing.
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 Notepad++ is typically brought in for.
What can Insomnia do that Notepad++ cannot?
Insomnia covers REST API Client, GraphQL Support, gRPC Support, GitHub. Notepad++ covers Syntax Highlighting, Tabbed Editing, Plugin System, Regular Expression Search.

Answered from the vendors’ own pages

Insomnia: How much does Insomnia cost?

Insomnia offers a free Essentials plan. Pro plans cost $12 per user per month with annual billing offering 17% savings. Enterprise plans cost $45 per user per month with support for up to 50 users self-serve; contact sales for larger teams.

Source
Notepad++: Is Notepad++ free?

Yes, Notepad++ is free and open-source software distributed under the GNU General Public License, with no paid tiers.

Source
Insomnia: Is there a free version of Insomnia?

Yes, the Essentials plan is free and includes unlimited Cloud and Local projects, Git Sync for up to 3 users, 1,000 mock server requests per month, Inso CLI, E2EE, custom linting, plugins, and AI features.

Source
Notepad++: What license does Notepad++ use?

Notepad++ is licensed under the GNU General Public License v2.0 (GPLv2), meaning its source code is freely available and modifiable under GPL terms.

Source
Insomnia: What mock server request limits apply to Insomnia plans?

Essentials includes 1,000 mock server requests per month. Pro includes 10,000 requests per month. Enterprise includes unlimited mock server requests. Additional mock server requests beyond plan allowances cost $10 per 25,000 requests.

Source
Notepad++: Which operating systems does Notepad++ support?

Notepad++ runs exclusively on Microsoft Windows; there is no official native build for macOS or Linux.

Source
Notepad++: How do I install plugins in Notepad++?

Plugins are installed and managed through the built-in Plugins Admin (plugin manager), which lists community plugins available for download and update.

Source
Notepad++: Where can I get help or documentation for Notepad++?

Official documentation is at the User Manual site, and community support is available through the Notepad++ community forum and GitHub issue tracker.

Source
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