Developer Tools
Format, inspect and convert your data.
JSON formatter, validator and minifier
Format or compact JSON without rounding large numbers or losing duplicate keys. Import files, locate errors, and download locally.
XML formatter
Indent XML locally while preserving mixed text and xml:space sections, or keep all whitespace. Correct errors and download UTF-8 XML.
HTML formatter
Format HTML with indentation, wrapping and attribute controls while preserving embedded code and preformatted sections. Import and download locally.
CSS formatter
Format CSS with indentation and quote controls, preserving custom property values and cascade order. Import, recover and download locally.
JavaScript formatter
Format JavaScript and JSX without executing code. Choose indentation, quotes and punctuation; recover input and download locally.
SQL formatter
Format SQL for twenty database dialects with indentation and keyword controls. Preserve quoted values and download locally without execution.
Base64 encode/decode
Encode UTF-8 text or files, decode standard and URL-safe Base64, inspect binary bytes and download complete results locally.
URL encode/decode
Free to use, with local processing and no account.
UUID generator
Free to use, with local processing and no account.
Hash generator
Free to use, with local processing and no account.
JWT decoder
Free to use, with local processing and no account.
Regex tester
Free to use, with local processing and no account.
Unix timestamp converter
Free to use, with local processing and no account.
Color converter
Free to use, with local processing and no account.
HTML entity encoder/decoder
Free to use, with local processing and no account.
Markdown preview
Free to use, with local processing and no account.
Compare text (diff checker)
Compare text or two local files side by side, jump between changes, review whitespace differences and download the complete comparison.
CSV to JSON
Free to use, with local processing and no account.
JSON to CSV
Free to use, with local processing and no account.
HTML viewer
Open local HTML with a styled, isolated preview. Check mobile and desktop widths, edit source, recover replacements and download locally.
JSON viewer
Explore an expandable JSON tree, search keys and values, copy exact numbers and paths, and download selected JSON without uploading.
XML viewer
Explore XML elements and attributes, search values and namespaces, locate exact source and download your original file locally.