Test regular expressions with live match highlighting and capture groups.
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ASCII / Char Code Viewer
Paste a string to see each character with its numeric code point underneath.
Diff Viewer
Compare two blocks of text and see additions and deletions highlighted.
Browser Info
See everything your browser reveals — user agent, screen, GPU, network, and more.
Byte / Bit Size Converter
Convert between bytes, kilobytes, megabytes, and more — in both SI and binary units.