Practical Guides & Troubleshooting
From real inputs to verifiable results: examples, limitations and the next step to take.
JSON formatter changed an ID? Check large-number precision
Reproduce a changed numeric ID, locate the lossy parsing step and keep identifiers intact.
ToolBox is live: 65 free online tools, all running locally
The full story from idea to launch: why we built it, how the tools were chosen, and how "nothing gets uploaded" actually works.
Do online tools leak your data?
JWTs, API keys, internal configs — before pasting into an online tool, know where your data actually goes. Local vs server-side processing explained.