As a backend developer, I constantly switch between small utility websites.
Formatting JSON, decoding JWTs, testing regex patterns, converting timestamps...
After years of using the same tools, here are the 10 browser-based utilities I use most often.
1. JSON Formatter
Still my most used tool. Essential for API debugging and log inspection.
2. JWT Decoder
Quickly inspect claims, expiration dates and payload data without writing code.
3. SQL Formatter
Makes large SQL queries much easier to read and review.
4. Regex Tester
Perfect for validating patterns before putting them into code.
5. Timestamp Converter
A daily tool when investigating logs and production issues.
...
Why I Built My Own Toolkit
Switching between 10 different websites became annoying.
So I built a free browser-based toolkit that brings these utilities together in one place:
https://developerdebugtools.com
No signup. No installation. Just open and use.
What browser-based tool do you use most often?