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Developer Tools

Privacy-first developer tools that run entirely in your browser. No data collection, no tracking, available at no cost.

All Tools

QR Code Generator

Create WiFi, vCard, URL QR codes instantly. Zero tracking, maximum privacy

Image Compressor

Compress images client-side without losing quality. WebP, PNG, JPEG support

Password Generator

Generate cryptographically secure passwords with true randomness. Zero storage

JSON Formatter & Validator

Format, validate, and beautify JSON locally. No data transmission

Markdown Editor

Live Markdown preview with GitHub Flavored Markdown. Private writing

Base64/URL/Hex Encoder

Base64, URL, Hex encoder and decoder. Zero-knowledge, client-side

Hash Generator

Generate SHA-256, SHA-1, MD5 hashes for text and files. Client-side only

UUID Generator

Generate cryptographically secure UUIDs (v1, v4, v7). Zero storage

AES-256-GCM Encryptor

Client-side AES encryption for text and files. Zero knowledge architecture

Timestamp Converter

Convert between Unix timestamps and human-readable dates. Multi-timezone

JWT Decoder

Safely decode and inspect JWT tokens. No verification, maximum privacy

Text Case Converter

Convert text case: camelCase, snake_case, PascalCase, and more

Text Diff Tool

Compare two texts and highlight differences. Line-by-line diff viewer

HMAC Generator

Generate HMAC signatures for API authentication. Client-side only