CSS Tab Size Preview
Preview tab-size values for code blocks, logs, and pasted textareas.
What the CSS Tab Size does
Preview tab-size values for code blocks, logs, and pasted textareas. A code sample can render tabs as two spaces instead of eight columns Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: Tab rendering affects display only and does not rewrite the source text.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the CSS Tab Size do?
Preview tab-size values for code blocks, logs, and pasted textareas. A code sample can render tabs as two spaces instead of eight columns.
What should I keep in mind?
Tab rendering affects display only and does not rewrite the source text
Does it upload my input?
No. The CSS Tab Size runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.