All Tools VerseMarkdown Cheat Sheet
A quick Markdown cheat sheet: headings, emphasis, lists, links, images, code, quotes, and tables, with what each does.
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CSS Color Names (Hex and RGB)
The full list of CSS color names with a swatch, hex code, and RGB values for each, ready to copy.
Number Bases Table (Binary, Octal, Hex, Decimal)
A conversion table of 0 to 255 in decimal, binary, octal, and hexadecimal, with a short explanation of number bases.
Regex Cheat Sheet
A quick regex cheat sheet: character classes, anchors, quantifiers, groups, lookaround, and flags, each with an example.
HTML Entities Reference (Special Characters)
A reference list of HTML entities with their named and numeric codes, for symbols, punctuation, currency, math, and accents.
HTTP Status Codes Cheat Sheet
The complete list of HTTP status codes, from 1xx to 5xx, with plain-English meanings, grouped for quick reference.
Extract a Color Palette from an Image
Extracting a color palette from an image pulls out its main colors as a small set of swatches with their hex codes, so you can reuse the exact colors else
HTML Entities: Encode and Decode Special Characters
HTML entities are codes that let you show characters which would otherwise break a web page, so a less-than sign is written as < and an ampersand a
BCD Explained: Convert Binary Coded Decimal
Binary coded decimal, or BCD, stores each decimal digit in its own four-bit group instead of converting the whole number to binary. So the decimal 25 in B
Extract or Delete CSV Columns
Editing CSV columns means extracting just the ones you need or deleting the ones you do not, without opening a spreadsheet or writing a script. A wide exp
Generate Random Bytes and Hex Strings
Generating random bytes or hex strings gives you unpredictable values for keys, tokens, test data, and salts, written either as raw byte numbers or as a c
Add Text, a Border or a Background to an Image
Adding text, a border, or a background to an image are three of the most common quick edits, useful for captions, watermarks, framing, and filling transpa