Free Online Tools
Free online calculators and tools for electronics engineers, hobbyists, and professionals. **100% privacy-first, browser-only processing** - no signup required, no watermarks, no ads, no tracking. All tools process data entirely in your browser—your data never leaves your device.
Electronics Tools
3Free online calculators and tools for electronics engineers and hobbyists. Resistor calculators, LED calculators, and more.
Rechner (German Tools)
2Nützliche Online-Rechner für Freelancer und Unternehmer.
General Tools
12Free online tools for daily tasks: work time tracking, PDF editing, text tools, calculators, and more. All processing happens in your browser.
Media Editors
4Free browser-based video, audio, and image editors. All processing happens in your browser - files never leave your device.
Developer Tools
13Free online developer tools for encoding, decoding, formatting, validating, and generating data. All processing happens in your browser - privacy-first, no signup required.
Security Tools
2Free online security tools for generating secure passwords and managing credentials. All generation happens in your browser.
Generator Tools
3Free online generators for QR codes and more. Create custom codes and data formats with no sign-up required.
All tools run entirely in your browser — no uploads, no sign-up, free to use.