@ameenusman

Ameen Usman

@ameenusmanJoined October 2026

Free browser developer tools. Nothing you paste is uploaded.

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Ameen Usman's blogs

KeptToolskepttools.hashnode.dev4 posts

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AUAmeen Usmankepttools.hashnode.dev3h ago · 1 min read

How to prove an online JWT tool isn’t stealing your token

Most free JWT decoders ask you to paste a token. That’s a trust problem. Tokens can include emails, roles, and session data. If the page uploads it, you just gave secrets to someone else’s server. Her

AUAmeen Usmankepttools.hashnode.dev2d ago · 2 min read

That API Timestamp Looks Like Nonsense — Here’s How I Read It in the Browser

If you work with APIs long enough, you eventually get a field like this:1729000000 Is that seconds? Milliseconds? Yesterday? Next week? I got tired of guessing — and tired of pasting values into ran

AUAmeen Usmankepttools.hashnode.dev3d ago · 2 min read

I Got Tired of “Free Tools” That Upload My Files — So I Built Browser-Only Ones

Most “free online tools” ask you to paste text or upload a photo. What they don’t always make clear: that content often leaves your device. For JSON with client data, a JWT, a draft you’re not ready t

AUAmeen Usmankepttools.hashnode.dev5d ago · 1 min read

Convert JSON to Laravel, TypeScript, PHP DTO, or CSV in your browser

I kept needing the same thing during Laravel and TypeScript work: paste some API JSON, get a clean Laravel array, a TypeScript interface, a PHP DTO, or CSV — without sending that payload to a random w

Ameen Usman

About

Available for

Ameen Usman's blogs

Recently published

How to prove an online JWT tool isn’t stealing your token

That API Timestamp Looks Like Nonsense — Here’s How I Read It in the Browser

I Got Tired of “Free Tools” That Upload My Files — So I Built Browser-Only Ones

Convert JSON to Laravel, TypeScript, PHP DTO, or CSV in your browser

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Ameen Usman

About

Available for

Ameen Usman's blogs

Recently published

How to prove an online JWT tool isn’t stealing your token

That API Timestamp Looks Like Nonsense — Here’s How I Read It in the Browser

I Got Tired of “Free Tools” That Upload My Files — So I Built Browser-Only Ones

Convert JSON to Laravel, TypeScript, PHP DTO, or CSV in your browser