Code Minifier Online
Minify or beautify HTML, CSS, JavaScript, and JSON in your browser. See size savings instantly — no upload.
Drag and drop a file or paste up to 10 MB of code.
All minification and beautification runs locally in your browser. Your code is never uploaded or stored on a server.
How to minify or beautify code
- Paste code or drag a file into the input area.
- Choose language, minify or beautify mode, and optional cleanup settings.
- Copy or download the result and check before/after size stats.
About Code Minifier Toolkit
Code Minifier Toolkit helps developers and site owners shrink production code or restore readable formatting before editing. Everything runs locally in your browser — nothing is uploaded or stored. You can minify or beautify HTML, CSS, JavaScript, and JSON, remove comments and empty lines, preserve formatting when needed, and see original size, result size, and compression percentage at a glance.
FAQ
- What does minification do?
- Minification removes unnecessary characters, spaces, and formatting to reduce code size.
- Does this tool upload my code?
- No. All processing happens locally in your browser.
- Which formats are supported?
- HTML, CSS, JavaScript, and JSON.
- Can I restore readable formatting?
- Yes. Beautify mode formats code for readability.
- Can I download optimized code?
- Yes. Results can be copied or downloaded.
- Is this code minifier free?
- Yes. No account or registration is required.
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