Developer Tools
Lightweight, secure, and client-side developer utilities built to speed up your daily coding workflows.
JSON Formatter
Coming SoonInstantly format, validate, and minify your JSON data. Features tree views, syntax highlighting, and offline support, with all processing performed completely client-side in your browser.
Time Converter
Coming SoonConvert Unix/Epoch timestamps to readable UTC and local date formats, and vice versa. Easily compare timezones and calculate offsets with zero server interaction.
Base64 Encoder
Coming SoonEncode or decode text strings and raw binary files into standard Base64 format. Secure local processing ensures your sensitive assets never touch our servers.
Regex Tester
Coming SoonTest regular expressions against sample text in real-time. Features support for multiple regex engines, match highlighting, and detail tables listing captured groups.
UUID Generator
Coming SoonGenerate secure, cryptographically random RFC4122 compliant version 4 UUIDs (Universally Unique Identifiers) in bulk. Copy single or multiple tokens in one click.
Password Generator
Coming SoonCreate cryptographically secure, randomized passwords. Customize your length, select character types (caps, numbers, symbols), and check entropy indicators.
Security & Design Principles
Our tools prioritize data privacy and workflow speed over everything else.
100% Client-Side
Your code, configuration files, and raw data are never transmitted to a backend server. Everything executes locally in your browser's sandboxed environment.
Offline Available
Because we don't rely on server APIs, our tools work fully offline. Save the page or access it without an internet connection to keep hacking.
Zero Ads & Bloat
We hate slow sites and clutter. Stacknivo Developer Tools are completely ad-free, minimal, and built using lightweight clean HTML/CSS elements.