Text to binary, hex and decimal — and back (UTF-8).
Placeholder paragraphs, sentences or words.
Turn any title into a clean URL slug.
Format, minify and validate JSON.
Generate strong random passwords locally.
Test regular expressions with live highlighting.
Convert Unix timestamps to dates and back.
Encode and decode Base64, text or files.
Percent-encode and decode URLs and query strings.
Convert between HTML entities and plain characters.
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes.
Generate v4 UUIDs, one or thousands.
Find the differences between two blocks of text.
Format messy SQL with keywords and indentation.
Explain any cron schedule and show next runs.
Decode a JWT and read its claims.
Binary, octal, decimal, hex — any base 2-36.
Inspect any file's raw bytes — offset, hex, ASCII.
Unix permissions: checkboxes ↔ octal ↔ rwx.
CIDR to network, broadcast, range and host count.
Decode any user-agent string — browser, OS, device.
Build campaign URLs with UTM parameters.
Convert a JSON array into CSV / Excel.
Turn CSV / spreadsheet data into JSON.
Minify CSS — strip comments and whitespace.
Every status code explained, searchable.
Turn a spreadsheet into JSON without uploading it.
Pull one sheet, or every sheet, out as CSV.
Turn CSV into a proper Excel workbook.
Unpack minified JavaScript into something you can read.
Shrink JavaScript without touching what it does.
Unpack minified CSS into something you can read.
Indent HTML by nesting depth, leaving pre and textarea alone.
Shrink HTML without changing what it renders.
Turn JSON into YAML without uploading it.
Turn a YAML config into JSON without uploading it.
Indent XML by nesting depth, or squeeze it flat.
Render Markdown and copy the HTML out.
Turn a page of HTML back into Markdown.
Repackage a desktop font as WOFF for the web.