Insomnia REST Client icon
Insomnia REST Client icon

Insomnia REST Client

 143 likes

A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

Specify URL, payload, headers, and authorization all in one place. Then just hit send.

License model

  • FreemiumOpen Source

Application types

Country of Origin

  • US flagUnited States

Platforms

  • Mac
  • Windows  64-bit only
  • Linux  64-bit only
  • Flathub
  • Flatpak
3.5 / 5 Avg rating (14)
143likes
14comments
0news articles

Features

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Properties

  1.  Lightweight

Features

  1.  Request Chaining
  2.  Import Curl commands
  3.  REST API
  4.  REST Client
  5.  GraphQL
  6.  Cloud Sync
  7.  Support environment variables
  8.  API Management
  9.  Separated workspaces
  10. GraphQL icon  GraphQL integration
  11.  Image Preview
  12.  SSL client certificates
  13.  Variables
  14.  Code generation
  15.  Configurable request timeout
  16.  Electron based
  17.  Support for Keyboard Shortcuts

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Comments and Reviews

   
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Comment summary: Users appreciate Insomnia REST Client for its easy-to-use and aesthetically pleasing UI, making it preferable to Postman for some. However, criticisms focus on its slowness and high memory usage, lack of API tests, and recent changes requiring cloud registration for multiple collections. Some users have experienced installation issues and miss local collection support, mentioning alternative options. Positive feedback highlights its simplicity, functionality, and user interface design.
Top Positive Comment
Ola Johansson
Mar 12, 2019
2

I'm not sure what the deal is with Postman but it's something with their UI that makes me crazy. You can't copy paste stuff without the cursor leaving the fields and so on.

Their environment system also feels weird and you have no idea what gets saved or not and it's just confusing in general.

I have tried Insomnia for a while now and it just feels so much better.

Top Negative Comment
sentakushi
Oct 4, 2023
4

With the upgrade to the latest version (8), all the request collections disappeared, and not it's only to possible to have a single local collection called Scratchpad. The issue is described in their issue ticket 6585 (https://github.com/Kong/insomnia/issues/6585). It's probably to push people to use their cloud features. I avoided using Postman because they did the same. Now I will also avoid Insomnia. That's a shame because it was quite convenient.

NeuroAds
Jul 7, 2024
0

Now asking to register an account to use more than one local collection.

inson1
Dec 12, 2023
0

Open source, clean UI

Po Ho
Jun 7, 2023
1

Is Insomnia a better tool than Postman? It can be just as good, or even better. I really like its UI/UX design.

aTaleksei
May 1, 2023
0

I used this client for a couple of years but with recent updates it became so slow that it's just not usable anymore. I am not sure whether Insomnia is based on Electron but it sure does look and feel like it and explains the performance issues. Looking for another open source alternative now.

Guest
Mar 18, 2021
0

Is Insomnia REST client collaborative?

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What is Insomnia REST Client?

Debug APIs like a human, not a robot.

Insomnia is a simple yet powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

Official Links

Insomnia REST Client information

  • Developed by

    US flagGregory Schier
  • Licensing

    Open Source (Apache-2.0) and Freemium product.
  • Pricing

    Subscription that costs up to $8 per month + free version with limited functionality.
  • Written in

  • Rating

    Average rating of 3.5 (14 ratings)
  • Alternatives

    79 alternatives listed
  • Supported Languages

    • English

AlternativeTo Categories

DevelopmentPhotos & Graphics

GitHub repository

  •  36,716 Stars
  •  2,093 Forks
  •  734 Open Issues
  •   Updated Jul 10, 2025 
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Our users have written 14 comments and reviews about Insomnia REST Client, and it has gotten 143 likes

Insomnia REST Client was added to AlternativeTo by gschier on Aug 26, 2016 and this page was last updated Sep 17, 2024.