As developers, we constantly deal with small but annoying tasks:
- Fixing broken JSON
- Testing regex
- Formatting SQL queries
- Decoding JWT tokens
Most tools online are either:
- Slow
- Filled with ads
- Or require login 😑
So I started collecting (and building) fast, no-login developer tools that I actually use daily.
Here are my favorites 👇
⚡ 1. JSON Formatter (Fix messy JSON instantly)
Ever pasted JSON and got:
“Invalid JSON” error?
This tool helps you:
- Beautify JSON
- Validate errors
- Fix formatting instantly
👉 https://toolhub.fyi/tool/json-formatter
🔍 2. Regex Tester (Debug patterns easily)
Regex can be painful.
This tool lets you:
- Test patterns live
- See matches instantly
- Debug step-by-step
👉 https://toolhub.fyi/tool/regex-tester
🧠 3. SQL Formatter (Clean ugly queries)
Working with SQL like:
SELECT * FROM users WHERE id=1
This tool converts it into clean, readable format:
👉 https://toolhub.fyi/tool/sql-formatter
🔐 4. JWT Decoder (Understand tokens instantly)
If you work with authentication:
- Decode JWT tokens
- View payload clearly
- No verification required
👉 https://toolhub.fyi/tool/jwt-decoder
🔄 5. JSON ↔ CSV Converter
Super useful when working with APIs or Excel.
- Convert JSON → CSV
- Convert CSV → JSON
👉 https://toolhub.fyi/tool/json-to-csv
🔄 6. XML ↔ JSON Converter
Still dealing with XML APIs?
- Convert XML → JSON
- Convert JSON → XML
👉 https://toolhub.fyi/tool/xml-to-json
🔑 7. UUID Generator
Need unique IDs?
- Generate UUID instantly
- No dependencies
👉 https://toolhub.fyi/tool/uuid-generator
🔒 8. Password Generator
Create strong passwords:
- Custom length
- Symbols, numbers, etc.
👉 https://toolhub.fyi/tool/password-generator
🔗 9. URL Encoder / Decoder
Perfect for handling query params:
👉 https://toolhub.fyi/tool/url-encode
🧾 10. Word Counter
Useful for:
- Writing blogs
- Counting characters
👉 https://toolhub.fyi/tool/word-counter
💡 Why I prefer these tools
- ⚡ Fast (no loading delays)
- 🔒 No data stored
- 🚫 No login required
- 💻 Works directly in browser
🧠 Final Thoughts
Instead of bookmarking 20 different sites, I prefer having everything in one place.
If you’re a developer, these tools can save you a lot of time daily.
👉 If you have any other tools you use daily, drop them below 👇
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