6 tools · free forever · no signup

Developer Tools
that just work

// fast, clean, browser-based utilities for everyday dev tasks

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JSON Formatter

Beautify, minify and validate JSON instantly. Syntax highlighting and clear error messages.

beautifyminifyvalidate
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⏱

Timestamp Converter

Convert Unix timestamps to readable dates and back. Supports your local timezone.

unixepochtimezone
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64

Base64 Encoder

Encode text to Base64 or decode Base64 back to plain text. One-click copy.

encodedecodecopy
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JWT

JWT Decoder

Decode any JWT token. Inspect header, payload and expiration without any server calls.

headerpayloadexpiry
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URL

URL Encoder

Encode and decode URLs in real time. Handles special characters, query strings and more.

encodedecodereal-time
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*/5

Cron Explainer

Translate any cron expression into plain English. Shows next 8 run times in your timezone.

validateexplainnext runs
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Browser-based

Why DevTools Hub?

No trackingEverything runs in your browser. Nothing is sent to any server.
No signupOpen a tool, use it, close it. Zero friction, zero accounts.
FastPure HTML and JS — no frameworks, no loading spinners, instant results.
Clean UIDesigned for developers who spend hours staring at a screen.