Developer Tools & Utilities
Free, practical utilities for Android tinkerers and developers — encode Base64, hash text, format JSON, convert colours and file sizes, and generate secure passwords. Everything runs in your browser.
Base64 Encoder / Decoder
Encode text to Base64 or decode it back to text in your browser — handy for data URIs, API tokens, config values, and debugging Android payloads. Nothing is uploaded
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 digests from any text with your browser's Web Crypto API — verify APK checksums, compare files, and check data integrity
JSON Formatter
Pretty-print, minify, and validate JSON — tidy up API responses and Android config files and catch syntax errors on the spot, all locally in your browser
Color Converter
Convert colours between HEX, RGB, and HSL with a live preview — grab the exact value for an Android theme, a custom ROM accent, an app UI, or a launcher icon
File Size Converter
Convert between bytes, KB, MB, GB, and TB using binary units (1 KB = 1024 B) — size up APKs, app data, downloads, and storage with a human-readable result
Password Generator
Create strong, random passwords with your browser's cryptographically secure generator — choose length and character types and see the entropy. Nothing is stored