Top 3 Bootstrap to Tailwind Converters

col-md-6 mb-3 text-muted needs to become Tailwind. You can work it out — md:w-1/2 mb-3 text-gray-500 or thereabouts — and then do it four hundred more times across a codebase.

Most of the mapping is mechanical, which is what makes a converter useful. The parts that are not mechanical are where migrations go wrong: Bootstrap’s 12-column grid does not map cleanly onto Tailwind’s fractions, the spacing scales use different units, and Bootstrap components like .card are a bundle of styles with no single Tailwind equivalent. A converter that pretends otherwise produces markup that looks converted and renders wrong.

How to judge a converter

Which Bootstrap version? 4 and 5 differ enough that a converter tuned for one will mistranslate the other — ml-* became ms-* in Bootstrap 5, for a start.

Does it flag what it cannot map? The valuable output is the list of classes with no clean equivalent. Silent approximations are worse than gaps.

Does it handle React? class versus className is trivial and endlessly annoying to fix by hand.

Markup or stylesheets? Converting HTML class attributes is one job; converting a Bootstrap-based CSS file is a different and harder one.

The comparison

Facts checked August 2026; tools change their plans. Table covers only the 3 alternatives — our tool gets its own section below.

Infyways Converter

The most convenient for component-by-component work. Paste HTML containing Bootstrap classes into the left editor, get Tailwind out on the right, with real-time editing, clipboard copy and file download. It handles both Bootstrap 4 and 5.

Its genuinely useful touch is a toggle that rewrites every class attribute to className, which removes the single most tedious step of pasting converted markup into a React component. Free with no signup, as part of a large collection of free utilities. It converts rather than advises, so where a mapping is approximate you will not be told.

Tailfind

The most careful about rendering. You pick Bootstrap 4 or 5 and it loads the matching Bootstrap CSS before generating the Tailwind output, then shows source and result side by side so you can compare the Bootstrap input against the Tailwind output before copying. Coverage spans cards, badges, alerts, buttons, forms, spacing utilities, text utilities, grid layouts and typography.

That side-by-side preview is worth real time on components where the conversion is approximate — you can see the difference rather than discovering it later. It offers trial access with a $24 lifetime licence, making it the only paid option here, and the page does not state whether an account is needed for the trial.

Tailwindo

The one that scales. It is a PHP library and command-line tool, installable via Composer, that converts Bootstrap classes in HTML and PHP files — and crucially it works on single files, code snippets or entire folders, which is the difference between converting a component and converting an application.

It can also extract the conversions into a separate CSS file as Tailwind components while preserving the original class names, which is a thoughtful migration path: the markup keeps working while you move over gradually. Free and open source under MIT. It is a local tool, so if you wanted a web page to paste into, this is not it.

Bootstrap to Tailwind Converter

Ours converts Bootstrap utility classes to their nearest Tailwind equivalents with the grid and spacing scales mapped — and the gaps flagged. Flagging the gaps is the deliberate difference: the classes that do not map cleanly are the ones that will break your layout, and a converter that quietly substitutes its best guess hands you markup that looks finished and is not.

What it does not do: batch-convert folders the way Tailwindo can, render a live preview like Tailfind, or rewrite class to className. For an application-wide migration Tailwindo is the right shape of tool; for verifying a tricky component, Tailfind’s preview goes further. Tailwind’s own documentation on the spacing scale is worth having open — most of the mismatch between the two frameworks lives there.

Which one to pick

• A whole codebase — Tailwindo, run locally.
• Checking a component renders the same — Tailfind’s side-by-side.
• React components, pasted one at a time — Infyways.
• Knowing which classes did not translate — the tool below.

How to do it with Bootstrap to Tailwind Converter

1. Open the Bootstrap to Tailwind Converter and paste the markup.
2. Read the flagged gaps first — those need a decision, not a find-and-replace.
3. Check grid classes carefully; a 12-column system does not map onto fractions without thought.
4. Render the result before moving on. Approximate spacing is invisible in code and obvious on screen.

The walkthrough is in how to migrate Bootstrap classes to Tailwind. Other developer tools are in the tools directory.

You might also need

The CSS Formatter helps once you start moving custom styles alongside the utility classes.

If the migration involves rebuilding components, the SVG Blob Generator and other design tools are in the same directory.

Frequently asked questions

Is there a free Bootstrap to Tailwind converter?

Yes. Infyways is free with no signup, Tailwindo is open source under MIT, and ours is free and runs in your browser. Tailfind is the paid option at $24 for a lifetime licence.

Can a converter handle Bootstrap components like cards?

Partially. A .card is a bundle of styles rather than a single utility, so converters expand it into several Tailwind classes that approximate the look. The result is usually close and rarely identical — check it against the original before accepting it.

Should I migrate all at once?

Rarely. Running both frameworks briefly is unpleasant but survivable; a half-finished big-bang migration is not. Tailwindo’s approach of preserving original class names while extracting Tailwind components is one sensible way to move gradually.

Final thought

Convert a component, render it, then convert the next one. The classes that map cleanly were never going to cost you time, and the ones that do not will only reveal themselves on screen.

Try the free Bootstrap to Tailwind Converter