DevKnifeSolo Tuna
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Related Products
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About
DevKnife is a lightweight all-in-one toolkit for developers on macOS.
It brings together common utilities in a single native app, so you don’t have to switch between websites, CLI tools, or bulky IDEs for simple tasks.
Current modules include: JSON Editor & Formatter, Text Compare, JWT Decoder, Domain & IP WHOIS, Port Scanner, Network Speed Test, Color Picker, Hasher, and IP Location.
All tools are built to run locally without relying on third-party APIs. For network-related features like WHOIS or Speed Test, DevKnife connects directly to the relevant servers without sending your data elsewhere.
DevKnife is actively developed with new features and modules added over time — a handy companion for everyday developer tasks.
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About
SafeJSON is an all-in-one local JSON toolkit built exclusively for developers. All parsing, comparison, JWT decoding and validation runs 100% inside your browser, with zero user data uploaded to external servers.
Core features include standard JSON formatter, visual JSON Diff, JWT token decoder, JSONPath query engine, and JSON Schema validator. It supports huge 50MB+ JSON files powered by Web Workers, dark mode, collapsible tree views, and one-click raw JSON export.
Users can independently verify full privacy via Chrome DevTools Network panel — no API keys, tokens or confidential payloads leave your device. The core toolset is permanently free, with advanced features (Diff & JWT) available via SafeJSON Pro ($5/month or $39/year). The full codebase is fully open-source on GitHub for full audit.
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Platforms Supported
Windows
Not Supported
Mac
Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Developers, sysadmins, and IT pros who need quick, reliable tools on macOS without juggling multiple apps or command-line utilities.
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Audience
Frontend & backend engineers, API testers, DevOps, security developers, full-stack programmers who work with JSON and auth tokens daily
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
$19
Free Version
Not Supported
Free Trial
Supported
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Pricing
$5/month, $39
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Not Supported
Webinars
Supported
Live Online
Not Supported
In Person
Supported
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Company InformationSolo Tuna
Founded: 2021
Lithuania
devknife.app/
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Company InformationSafeJSON
Founded: 2025
United States
safejson.dev
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Categories |
Categories |
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Integrations
No info available.
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Integrations
No info available.
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