Developer Tools

Clear Insomnia Cache on Mac

Clearing the cache removes only three rebuildable folders, which helps when the app feels sluggish or shows out-of-date content. Your local projects, request history and settings stay where they are.

Last updated: October 31, 20262 min read

Clear the Insomnia cache without guessing

Insomnia data usually takes 100 MB – 2 GB on a Mac. The free scan shows the exact size on your Mac before you change anything.

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Free scan · No account · Nothing is deleted without your OK · Moves to the Trash first · macOS 14+

Application: Insomnia
Typical data size: 100 MB – 2 GB
Category: Developer Tools
File Location: ~/Library/Application Support/Insomnia

Insomnia cache folders you can clear

These folders are rebuilt automatically, so removing them does not touch your own files.

~/Library/Application Support/Insomnia/Cache Cache · Insomnia web content cache Yes, rebuilt automatically~/Library/Application Support/Insomnia/Code Cache Cache · compiled JavaScript cache Yes, rebuilt automatically~/Library/Application Support/Insomnia/GPUCache Cache · GPU shader cache Yes, rebuilt automatically

Locations are the standard macOS folders Insomnia uses; some appear only after you use the matching feature.

What the Insomnia cache holds and when clearing it helps

Specific to Insomnia

The cache consists of three folders inside the app's support folder: Cache holds web content, Code Cache holds compiled JavaScript, and GPUCache holds graphics shader data. All three are rebuilt automatically as the app runs. Clearing them can help if the app is slow, displays garbled or stale content, or the support folder is using a lot of space, where its typical data size is 100 MB – 2 GB. The rest of that folder, which holds your local vault data, request history and plugins, is not part of the cache and is not touched.

What happens after you clear the Insomnia cache

The first launch afterwards will be slower, because the app rebuilds its web content, compiled code and graphics caches while it starts. After that, performance should return to normal, and the folders will grow again as you work. Local projects are kept in the support folder outside the cache, so clearing these three folders does not remove them. Projects stored in cloud sync or a Git repository do not depend on this folder at all. If you are unsure, keep the moved folders in the Trash until you confirm the app works properly.

If the app has a clear-cache option in its settings, use it first.Quit the app completely before touching any files.Open the Insomnia support folder via Finder's Go to Folder option.Move only Cache, Code Cache and GPUCache to the Trash, leaving everything else.

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Account and sync: Projects can be stored locally, in cloud sync or in a Git repository; only local projects depend on this folder.

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Frequently asked questions

Yes. Folders marked “Yes, rebuilt automatically” are rebuilt automatically; removing them only makes the next start slower.

Will the app need to rebuild anything after I clear the cache?

Yes, the three cache folders are recreated automatically, so the first launch will take longer than usual.

Can I put the cache folders back if something goes wrong?

Yes, items moved to the Trash can be restored until the Trash is emptied.