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Basic Data Types in C
The basic C data types and their sign and length modifiers — int, char, float, double, short, long and long long — with sizes, ranges and usage notes.
Data Types in C
Learn about data types in C programming, including core types, memory types, pointer types, and special types. Comprehensive guide for beginners and advanced programmers.
Code Examples
Practical C code examples for string manipulation and array operations — substring extraction, formatting, searching, tokenization, sorting and dynamic memory.
C Functions Reference
Comprehensive reference for C Standard Library functions. Explore detailed explanations, syntax, and usage examples for C programming.
Operators in C
C operator precedence and associativity as a visual hierarchy — primary, unary, multiplicative, additive, shift, relational, bitwise, logical, assignment and comma operators.
Things We Never Do in C
Common C mistakes and unsafe practices across arrays, pointers, characters, files, integers, linked lists, stacks, queues, hash tables and binary trees.
Python functions
Browse Python built-in functions and type methods: signatures, parameters, examples, pitfalls and live in-browser demos.
Python
Python reference with live in-browser demos: built-in functions, string, list, dict and set methods — signatures, examples, pitfalls.
Python operators
Browse Python operators: arithmetic, comparison, logical, bitwise, membership, identity and the walrus — with examples, pitfalls and live demos.
FROM Clause
Learn about the FROM clause in SQL, its usage, and advanced techniques.
SQL Clauses
Explore SQL clauses: SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, and LIMIT. Learn their uses and interactions in database queries.
SELECT Clause
Master the SELECT clause in SQL with comprehensive examples and explanations.
WHERE Clause
Master the WHERE clause in SQL with comprehensive examples and explanations.
Base64 Encoder / Decoder
Fast Base64 encoder and decoder. UTF-8 safe, runs entirely in your browser, no data sent to any server. Copy to clipboard, works offline.
CSS Minifier
Minify CSS in your browser with csso. AST-based optimization, not just regex — merges duplicate selectors, optimizes shorthand, preserves variables.
HTML Encoder / Decoder
Encode and decode HTML entities in your browser. Handles the five special characters plus optional non-ASCII (named, decimal, or hex).
HTML Minifier
Minify HTML in your browser. Strips whitespace, comments, and unnecessary quotes. Can minify inline CSS and JS too.
JavaScript Beautifier
Beautify minified JavaScript in your browser. Restore whitespace, indentation, and line breaks. Powered by js-beautify.
JavaScript Minifier
Minify JavaScript in your browser. Terser under the hood, with mangling, compression, drop-console, and comment options.