JSON Utility
Format, minify, and copy payloads without opening a separate web tool.
developer utility hub
Cirrus
Cirrus keeps JSON cleanup, snippets, color references, quick calculations, and clipboard session items in one quiet layer for macOS developers.
- JSON Utility
- Snippet Library
- Color Toolkit
- Calculator
- Clipboard History
Product facts
Cirrus at a glance
- Platform
- macOS 12.0 or later
- Base price
- Free download on the Mac App Store
- Account
- Core tools work without signing in
- Pro
- $1.99 one-time purchase · no expiration
- Current version
- v1.3.2
Product tour
See Cirrus in 29 seconds
From JSON cleanup to snippets, colors, calculations, and clipboard history—see all five tools in the real app.
On a small screen, use full screen for clearer details.
This video shows the real Cirrus app formatting and minifying JSON, finding and copying snippets, converting color formats, calculating from the keyboard, and bringing back clipboard history.
Small utility work should not send you througha maze of browser tabs and separate apps.
Utilities
Finish small work in one utility layer
Snippet Library
Search and copy prompts, commands, and short templates you use throughout the day.
Color Toolkit
Convert saved colors and picked values between HEX, RGBA, and HSL.
Calculator
Run short calculations and reuse recent results without leaving the current task.
Clipboard History
Keep copied items close for the current session and save useful ones as snippets.
Entitlement
Cirrus Pro
One purchase expands the local storage limits used in day-to-day work.
Price$1.99One-time purchase, no expiration
- 100 snippets
- 100 color favorites
- 100 clipboard items
FAQ
Frequently asked questions about Cirrus
What is Cirrus?
Cirrus is a local-first desktop utility for macOS developers. It brings JSON cleanup, snippets, color conversion, calculations, and clipboard history into one app.
Which developer tools are included?
Cirrus includes JSON formatting and minification, snippet search and copy, HEX, RGBA, and HSL color conversion, quick calculations, and clipboard history for the current session.
Can I use Cirrus without an account?
Yes. The core utilities work without signing in, and their default working data stays on your Mac. Signing in adds account sync for snippets and favorite colors.
Are clipboard and JSON data sent to a server?
Clipboard History and JSON Utility input and output are processed on your device by default. Data can become part of account sync only when you save it as a snippet or another synced item.
Is Cirrus Pro a subscription?
No. Cirrus Pro is a non-expiring, one-time in-app purchase that expands local storage limits. Apple App Store handles purchase and restore.
Which macOS version does Cirrus require?
Cirrus requires macOS 12.0 or later. You can download it for free from the Mac App Store.