Encode and decode Base64 text online free. Fast and secure Base64 encoder/decoder that runs entirely in your browser. No server upload required.

Test your internet speed online free. Measure download speed, upload speed, and ping latency. Accurate HTML5 speed test without Flash.

Convert text to Morse code and decode Morse code to text online free. Learn Morse code alphabet with audio playback support.

Analyze if text is precomposed (NFC) or decomposed (NFD) Unicode, view code points and character categories. Convert between NFC and NFD forms.