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kingfujing

Creator of DevToolsHub — free, privacy-first online developer tools. Writing about JSON, regex, JWT, and web dev.

Location Beijing,China Joined Joined on  Personal website https://devtoolshub-seven.vercel.app github website

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10 Free Online Developer Tools to Supercharge Your Workflow in 2026
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10 Free Online Developer Tools to Supercharge Your Workflow in 2026

#webdev #productivity #tools #beginners
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3 min read
5 Developer Tools That Respect Your Privacy
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5 Developer Tools That Respect Your Privacy

#webdev #privacy #tools #productivity
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3 min read

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Unix Timestamp Cheat Sheet: Convert, Read, and Debug Like a Pro
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Unix Timestamp Cheat Sheet: Convert, Read, and Debug Like a Pro

#webdev #javascript #tutorial #beginners
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4 min read
UUID v4 vs UUID v7: Which One Should You Use?
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UUID v4 vs UUID v7: Which One Should You Use?

#webdev #javascript #tutorial #database
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4 min read
How to Decode JWT Tokens Without a Backend
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How to Decode JWT Tokens Without a Backend

#webdev #javascript #tutorial #security
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3 min read
10 Free Online Developer Tools You Need in 2026
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10 Free Online Developer Tools You Need in 2026

#webdev #productivity #tools #beginners
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3 min read
The Complete Guide to Writing Better Regular Expressions
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The Complete Guide to Writing Better Regular Expressions

#webdev #javascript #tutorial #beginners
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3 min read
Base64 Encoding & Decoding: What Every Developer Needs to Know
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Base64 Encoding & Decoding: What Every Developer Needs to Know

#webdev #javascript #tutorial #security
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4 min read
JSON Formatting 101: How to Debug JSON Data Like a Pro
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JSON Formatting 101: How to Debug JSON Data Like a Pro

#webdev #javascript #tutorial #productivity
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3 min read
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