Free Developer Tools

Everyday utilities that run entirely in your browser — nothing is uploaded to any server. Free forever, no account needed.

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JSON Beautifier

Beautify, minify, and validate JSON.

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Base64 Encode/Decode

Convert text to/from Base64 (UTF-8 safe).

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URL Encode/Decode

Encode/decode URL components (percent-encoding).

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UUID Generator

Generate random (cryptographic) UUID v4.

#️⃣

Hash Generator

SHA-1, SHA-256, SHA-384, SHA-512 of any text.

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JWT Decoder

Decode JWT header & payload (no signature verification).

⏱️

Timestamp Converter

Unix timestamp ↔ date (ISO, WIB, local).

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Color Converter

HEX ↔ RGB ↔ HSL with preview.

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Password Generator

Cryptographically random passwords with configurable length & charset.

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Case Converter

UPPER, lower, Title, camelCase, PascalCase, snake_case, kebab-case.

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Slug Generator

Turn a title into a clean URL slug.

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Word Counter

Count characters, words, sentences, paragraphs, and reading time.

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Lorem Ipsum Generator

Placeholder text for designs & mockups.