JavaScript Formatter & Minifier
JavaScript formatter online to format, validate, and minify code in your browser. Clean up messy snippets or generate compact output in seconds.
About this tool
Use the formatter to make code readable and consistent, and the minifier to reduce file size for faster loading. The validator provides quick feedback on syntax errors.
Frequently asked questions
Does this tool run in the browser?
Will minification change my code behavior?
Can I keep license comments when minifying?
What JavaScript syntax is supported?
⭐ Rate this tool
Your feedback helps us improve
🔄 Workflow Suggestion
Try combining multiple tools for a complete workflow. For example: Notepad → Text Encryption → Save to Cloud or Date Calculator → Calendar → Countdown Timer
Related Tools & Recommendations
💡 You might also need
Base64 Encode/Decode
Convert text to Base64 format and decode Base64 strings
JSON Formatter & Validator
Format, validate, and minify JSON data with syntax highlighting and error detection
JSON Diff
Compare two JSON documents with structural path diff and formatted line diff. Client-side only.
📁 More Utilities Tools
JSON Diff
Compare two JSON documents with structural path diff and formatted line diff. Client-side only.
Package.json and Lockfile Diff
Semver-aware package.json dependency diff and npm lockfile version map, plus full JSON structural diff.
EditorConfig Generator
Generate a starter .editorconfig with indent, EOL, charset, and language presets. Copy-ready.
🔗 Additional Related Tools
Send Feedback
We'd love to hear your thoughts! Your feedback helps us improve our tools and create a better experience for everyone.
Share Your Experience
Tell us what you think about this tool