100% browser-based · No signup · No upload
Online tools that respect your privacy
9 free utilities for developers, writers, and anyone who needs to format, convert, or generate data. Everything runs in your browser — your input never leaves your device.
Converter
6Base64 Encoder / Decoder
→Free online Base64 encoder and decoder. Convert text to Base64 and back. UTF-8 safe. Runs entirely in your browser.
Case Converter
→Convert text between lowercase, UPPERCASE, Title Case, Sentence case, camelCase, snake_case, kebab-case, and CONSTANT_CASE. Free, runs in your browser.
CSS Unit Converter
→Convert between CSS length units: px, rem, em, %, pt, vw, vh. Uses a configurable root font size (default 16px) for rem/em math. Free, browser-side.
Hex / RGB Color Converter
→Convert between hex color codes and RGB values. Includes a color preview swatch. Runs in your browser.
Markdown to HTML Converter
→Convert Markdown text to clean HTML instantly. Supports headings, lists, links, code blocks, bold, italic, and tables. Free, browser-side, no upload.
Unix Timestamp Converter
→Convert Unix epoch timestamps to human-readable dates (and back). Supports seconds and milliseconds. Uses your local timezone.
Formatter
1validator
1Generator
1Why Tool Empire?
🔒
Private by design
Processing happens in your browser. No data uploaded to a server.
⚡
Instant results
No round-trips, no waiting on a backend. Tools run as fast as your computer.
🆓
Free, no signup
No accounts, no email gates, no "premium" tiers hiding basic features.