Free Developer Tools

Essential online utilities for developers. Fast, secure, and completely free. All tools run locally in your browser.

Browse All Tools See Featured
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Fast & Lightweight

No installation required. All tools load instantly and run in your browser.

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Private & Secure

Your data never leaves your device. Everything is processed locally.

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Always Free

No limits, no sign-up, no tracking. Just tools that work.

All Tools

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Base64 Encoder & Decoder

Encode and decode Base64 strings online. Free Base64 converter with UTF-8 support, file encoding, and instant conversion for developers.

encoding
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Color Converter (HEX, RGB, HSL)

Convert colors between HEX, RGB, HSL, and HSV formats. Free color converter with live preview, copy to clipboard, and color picker.

conversion
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Hash Generator (SHA-256, SHA-1, SHA-512)

Generate cryptographic hashes online. Free hash generator supporting SHA-1, SHA-256, SHA-384, and SHA-512 for checksums and data integrity.

security
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JSON Formatter & Validator

Format, validate, and beautify JSON data online. Free JSON formatter with syntax highlighting, error detection, and multiple formatting options.

formatting
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JWT Decoder & Inspector

Decode and inspect JSON Web Tokens (JWT) online. Free JWT decoder showing header, payload, and signature with validation and Base64 decoding.

security
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Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Free timestamp converter with ISO 8601, local time, and UTC support.

conversion
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URL Encoder & Decoder

Encode and decode URL strings online. Free URL converter with component and full URL encoding, perfect for query parameters and API development.

encoding
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UUID Generator (v4)

Generate random UUIDs (Universally Unique Identifiers) online. Free UUID v4 generator with bulk generation and one-click copying.

generation