Debug APIs like a human, not a robot! Cross-platform app for Mac

Insomnia for Mac

Insomnia Core 2021.2.1

  -  110 MB  -  Demo

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Insomnia Core 2021.2.1.


For those interested in downloading the most recent release of Insomnia for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • Insomnia Core 2021.2.1 Screenshots

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    Insomnia Core 2021.2.1 Screenshot 1
  • Insomnia Core 2021.2.1 Screenshot 2
  • Insomnia Core 2021.2.1 Screenshot 3
  • Insomnia Core 2021.2.1 Screenshot 4

What's new in this version:

- This patch addresses a regression found in 2021.2.0 where users were unable to make requests against localhost on certain platforms like Windows and through local DNS servers across all platforms.
- Once discovered we removed 2021.2.0 from the auto-update list and began our investigation. Through investigation we found the source of the regression was an update made to node-libcurl and worked with the maintainer to get a new build that resolves the issue.