Online Tools

Data

JSON Viewer

Tree view, folding, and search by value or key.

Text

Text Diff

Compare two text blocks line by line with inserted and deleted lines highlighted.

Encoding

Base64

Convert UTF-8 text to and from Base64, with optional URL-safe output.

Web

URL Encoder / Decoder

Encode/decode URI components and full URI strings.

Time

Stopwatch & Countdown

Stopwatch, common countdown presets, and recent countdown history.