As developers, we often copy and paste sensitive data into online tools without thinking twice.
JWT tokens.
API responses.
Configuration files.
JSON payloads.
URLs containing access tokens.
It's convenient—but have you ever wondered where that data actually goes?
Why It Matters
Many online developer tools process your input on their servers.
For harmless text, that's usually fine.
But when you're working with production data, customer information, or authentication tokens, uploading everything to a remote server isn't always the best idea.
Even if a service has good intentions, it's worth asking:
- Is my data stored?
- Is it logged?
- Is it used for analytics?
- How long does it remain on the server?
Sometimes the answer is clear.
Sometimes it isn't.
A Better Approach
Whenever possible, use tools that perform processing directly in your browser.
With browser-based tools:
- Your input never leaves your device.
- Processing happens locally.
- No server receives your data.
- Results are generated instantly.
This approach is particularly useful for:
- Formatting JSON
- Decoding JWT tokens
- Testing regular expressions
- Base64 encoding and decoding
- URL encoding and decoding
The Tools I Use
When building ToolMight, privacy was one of the first design decisions.
Every supported tool processes data entirely in the browser.
That means no uploads, no server-side processing, and no account required.
Some examples include:
Privacy Doesn't Have to Be Inconvenient
Fast developer tools shouldn't require sacrificing privacy.
Modern browsers are powerful enough to perform many common developer tasks locally, making online utilities faster and more secure for everyday workflows.
Whether you're inspecting a JWT, formatting JSON, or converting data formats, it's worth checking whether the tool actually needs your data—or whether it can do the job entirely inside your browser.
Final Thoughts
This is one of the principles behind ToolMight.
Simple tools.
Fast performance.
No unnecessary accounts.
And whenever possible, your data stays where it belongs—on your own device.
I'd love to hear what privacy-focused developer tools you use or what features you'd like to see added in the future.