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Markdown Preview

Instantly preview your markdown while you type with live rendering and full GFM support.

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Table Generator

Generate markdown tables visually with a live preview — add rows and columns with ease.

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HTML to Markdown

Convert any HTML content into clean, readable Markdown format in seconds.

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Markdown to HTML

Convert your Markdown documents into production-ready HTML with one click.

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Word Counter

Count words, characters, sentences and estimate reading time instantly.

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Text Diff Tool

Compare two text blocks side by side and highlight the exact differences.

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Aa

Case Converter

Convert text to UPPER, lower, Title, or camelCase with a single click.

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Lorem Ipsum Generator

Generate placeholder text in any length — paragraphs, sentences, or words.

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Text Repeater

Repeat any text or character string a specified number of times.

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{ }

JSON Formatter

Beautify, validate, and minify JSON with syntax highlighting and error detection.

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CSS Minifier

Remove whitespace and comments from CSS to reduce file size significantly.

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</>

HTML Formatter

Beautify and format messy HTML code into clean, indented, readable markup.

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Base64 Encoder

Encode and decode text or files to and from Base64 format instantly.

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URL Encoder

Encode and decode URLs to ensure they are safe to use in web requests.

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Hash Generator

Generate MD5, SHA-1, SHA-256 and other hash values from your text input.

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Why Choose MarkTools?

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Free Forever

Every tool on this platform is completely free and will remain free. No premium tiers or paywalls.

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No Login Required

Open any tool and start immediately. Your privacy is protected — no account needed.

Instant Results

All tools run in the browser with no server round trips. Results are immediate and snappy.

Frequently Asked Questions

Our tools support plain text (.txt), Markdown (.md), HTML, JSON, CSS, and more. Most tools accept raw text input that you can paste directly.
Yes! Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend keeping your browser up to date for the best experience.
Absolutely. All processing happens in your browser. We never transmit, store, or analyze any text you enter into our tools.
Yes, all tools are fully responsive and work well on smartphones and tablets. The layout adapts for smaller screens automatically.

Can't Find the Tool You Need?

We're always adding new tools. Let us know what you'd like to see.