Formatters & Linters
19 toolsFree online formatters & linters developer tools — fast, private, and runs in your browser.
JSON Formatter
Format, validate & minify JSON
PopularSQL Formatter
Beautify & indent SQL queries
Markdown Previewer
Write Markdown, see live HTML preview
Code Minifier
Minify JS, CSS & HTML code
Diff Checker
Compare two texts, highlight changes
PopularRegex Tester
Test regular expressions with live matching
XML Formatter
Format, validate & minify XML
CSS Formatter / Minifier
Beautify or minify CSS stylesheets
HTML Formatter / Minifier
Beautify or minify HTML documents
JSONPath Tester
Test JSONPath expressions on JSON data
JSON Schema Validator
Validate JSON data against a JSON Schema
HTML WYSIWYG Editor
Rich text editor with live HTML output
JSON Diff
Deep compare two JSON objects & highlight differences
YAML Formatter
Format & prettify YAML documents
Nginx Config Formatter
Format & beautify Nginx configuration files
.env File Formatter
Sort, group & validate .env files
GraphQL Formatter
Format & prettify GraphQL queries
Dockerfile Linter
Lint Dockerfiles for best practices
Markdown Linter
Format & lint Markdown documents