Strip trailing whitespace and normalize final newlines across pasted code or text. Ship zero-whitespace diffs every commit — local processing, free, no signup.
Beautify or minify HTML, CSS, JavaScript, XML, ERB, LESS, and SCSS with a single click. HTML, CSS, JS, XML, and more normalize in one pass — local processing, free, no signup.
Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics. No signup or account required.
Minify CSS by stripping whitespace, comments, and dead semicolons — smaller stylesheets instantly. Shrink a 50 KB file by 30% — local clean-css work, free, no signup.
Convert lists between comma, newline, pipe, tab, semicolon, and space delimiters. Move data across tools without reformatting — free, local, no signup.
Preview Markdown as rendered HTML on demand — headings, pipe tables, code, lists, and links sanitized with DOMPurify. Write docs seeing final output — local rendering, free, no signup.
Linters flag them, diffs show phantom changes, and some editors strip on save — creating noise commits. Cleaned files diff only on real changes.
No — only line-end whitespace removes; leading indentation stays byte-identical. Code structure never shifts.
Exactly one trailing newline enforced (POSIX standard). Missing newlines break concatenation tools; multiples annoy linters.
No — cleaning runs locally in your browser. Text never leaves your device.
Code Beautifier & Minifier
Beautify or minify HTML, CSS, JavaScript, XML, ERB, LESS, and SCSS with a single click. HTML, CSS, JS, XML, and more normalize in one pass — local processing, free, no signup.
CSV Data Cleaner
Clean messy CSVs — trim whitespace, fix encodings, deduplicate rows, standardize blanks. Make client exports analysis-ready — local processing, free, no signup.
Last updated October 2026