🛠️ FreeTool.jp JP
Categories
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Text Tools

A specialized collection of text manipulation tools for converting, formatting, comparing, and counting strings. Features include full/half-width conversion, character counting, regex testing, and encoding/decoding. Streamlines everyday text processing for writers and developers alike. Includes 21 tools.

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Text to HTML
Text to HTML

Convert plain text to paragraph-based HTML with auto-detection of headings and lists. This free Text to HTML tool recognizes markdown-style syntax (# headings, - lists), treats blank lines as paragraph breaks, converts line breaks to `<br>` tags, and escapes special characters safely. Perfect for notes, drafts, CMS preparation, or lightweight HTML publishing workflows.

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Text to HTML
Convert plain text to paragraph-based HTML with auto-detection of headings and lists. This free Text to HTML tool recognizes markdown-style syntax (# headings, - lists), treats blank lines as paragraph breaks, converts line breaks to `<br>` tags, and escapes special characters safely. Perfect for notes, drafts, CMS preparation, or lightweight HTML publishing workflows.
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Word Frequency Counter
Word Frequency Counter

Free online word frequency counter with automatic analysis of text word occurrence rates and percentages. Supports English and Japanese, with case sensitivity toggle, stop word filtering, minimum length filter, real-time analysis, and CSV/JSON export.

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Word Frequency Counter
Free online word frequency counter with automatic analysis of text word occurrence rates and percentages. Supports English and Japanese, with case sensitivity toggle, stop word filtering, minimum length filter, real-time analysis, and CSV/JSON export.
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Time Zone Converter & World Clock
Time Zone Converter & World Clock

Free online World Clock and Time Zone Converter to compare multiple global time zones (EST, PST, UTC, JST, London, Sydney, Beijing) simultaneously with automatic daylight saving time detection. Perfect for scheduling international meetings.

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Time Zone Converter & World Clock
Free online World Clock and Time Zone Converter to compare multiple global time zones (EST, PST, UTC, JST, London, Sydney, Beijing) simultaneously with automatic daylight saving time detection. Perfect for scheduling international meetings.
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URL Slug Generator
URL Slug Generator

A powerful URL slug generator that converts any text into clean, URL-friendly slugs. Supports Japanese, English, accented Latin characters, and more. Features customizable separators, case control, and max length options. Perfect for creating blog post permalinks, SEO-friendly URLs, and consistent URL structures for your website or CMS.

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URL Slug Generator
A powerful URL slug generator that converts any text into clean, URL-friendly slugs. Supports Japanese, English, accented Latin characters, and more. Features customizable separators, case control, and max length options. Perfect for creating blog post permalinks, SEO-friendly URLs, and consistent URL structures for your website or CMS.
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Sitemap XML Generator
Sitemap XML Generator

Auto-generate sitemap.xml from URL lists. Paste URLs to create XML sitemaps optimized for Google search engines in seconds. Set lastmod, changefreq, and priority attributes in bulk. Automatically removes duplicates, shows file size, and detects when multiple sitemaps are needed for large sites.

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Sitemap XML Generator
Auto-generate sitemap.xml from URL lists. Paste URLs to create XML sitemaps optimized for Google search engines in seconds. Set lastmod, changefreq, and priority attributes in bulk. Automatically removes duplicates, shows file size, and detects when multiple sitemaps are needed for large sites.
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Line Ending Converter
Line Ending Converter

An online tool that converts line endings between LF, CRLF, and CR directly in your browser. Useful when you need to normalize newline styles across Windows, macOS, and Linux.

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Line Ending Converter
An online tool that converts line endings between LF, CRLF, and CR directly in your browser. Useful when you need to normalize newline styles across Windows, macOS, and Linux.
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OGP Preview
OGP Preview

A free online tool that lets you preview how your Open Graph Protocol (OGP) meta tags will appear when shared on major social platforms including Twitter, Facebook, LINE, and Slack. Enter your og:title, og:description, og:image URL, og:url, og:type, og:locale, og:site_name, and twitter:card values to instantly see realistic previews for each platform. Includes character count with recommended limits to help optimize your titles and descriptions. Automatically generates the HTML meta tag code with a one-click copy button. Everything runs in your browser — no server requests needed.

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OGP Preview
A free online tool that lets you preview how your Open Graph Protocol (OGP) meta tags will appear when shared on major social platforms including Twitter, Facebook, LINE, and Slack. Enter your og:title, og:description, og:image URL, og:url, og:type, og:locale, og:site_name, and twitter:card values to instantly see realistic previews for each platform. Includes character count with recommended limits to help optimize your titles and descriptions. Automatically generates the HTML meta tag code with a one-click copy button. Everything runs in your browser — no server requests needed.
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Text Wrap Tool
Text Wrap Tool

A free online text wrapping tool that automatically breaks lines at a specified column width. Supports preset widths (40, 60, 72, 80, 100, 120) and custom values, with two wrap modes: hard break (force line break at exact column) and word wrap (avoid breaking mid-word). Includes an unwrap mode to join lines back into paragraphs. Perfect for formatting email text, unifying code comment widths, adjusting README line lengths, and reformatting chat logs.

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Text Wrap Tool
A free online text wrapping tool that automatically breaks lines at a specified column width. Supports preset widths (40, 60, 72, 80, 100, 120) and custom values, with two wrap modes: hard break (force line break at exact column) and word wrap (avoid breaking mid-word). Includes an unwrap mode to join lines back into paragraphs. Perfect for formatting email text, unifying code comment widths, adjusting README line lengths, and reformatting chat logs.
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HTML to Text
HTML to Text

Paste HTML and convert it to readable plain text by removing all markup, scripts, and styles.

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HTML to Text
Paste HTML and convert it to readable plain text by removing all markup, scripts, and styles.
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Morse Code Translator
Morse Code Translator

A browser-based tool that converts text to Morse code and Morse code back to text. Supports A-Z, 0-9, and common punctuation marks with clear dot-and-dash notation.

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Morse Code Translator
A browser-based tool that converts text to Morse code and Morse code back to text. Supports A-Z, 0-9, and common punctuation marks with clear dot-and-dash notation.
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SNS Character Counter
SNS Character Counter

Free SNS character counter comparing 9 major platforms: X, Instagram, TikTok, Bluesky, YouTube, LinkedIn, Threads, LINE, Facebook. Accurate grapheme counting with emoji support. Perfect for draft validation before publishing.

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SNS Character Counter
Free SNS character counter comparing 9 major platforms: X, Instagram, TikTok, Bluesky, YouTube, LinkedIn, Threads, LINE, Facebook. Accurate grapheme counting with emoji support. Perfect for draft validation before publishing.
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htaccess Redirect Generator
htaccess Redirect Generator

Easily generate Apache .htaccess redirect rules with a visual GUI. Supports status codes 301 (permanent), 302 (temporary), 303, 307, and 410 (gone). Create multiple redirect rules at once. Additional options include forcing HTTPS, normalizing www prefix, controlling trailing slashes, and setting custom error pages for 404, 403, and 500 errors.

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htaccess Redirect Generator
Easily generate Apache .htaccess redirect rules with a visual GUI. Supports status codes 301 (permanent), 302 (temporary), 303, 307, and 410 (gone). Create multiple redirect rules at once. Additional options include forcing HTTPS, normalizing www prefix, controlling trailing slashes, and setting custom error pages for 404, 403, and 500 errors.
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Markdown Table Generator
Markdown Table Generator

Instantly generate Markdown-formatted tables from a spreadsheet-like grid interface. Features include adding and removing rows and columns, per-column alignment settings (left, center, right), CSV/TSV paste import, live Markdown preview, and one-click copy. A completely free online Markdown table generator. Additionally, export tables in HTML and JSON formats to use your data beyond just Markdown for web content creation and data processing.

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Markdown Table Generator
Instantly generate Markdown-formatted tables from a spreadsheet-like grid interface. Features include adding and removing rows and columns, per-column alignment settings (left, center, right), CSV/TSV paste import, live Markdown preview, and one-click copy. A completely free online Markdown table generator. Additionally, export tables in HTML and JSON formats to use your data beyond just Markdown for web content creation and data processing.
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Text Repeater
Text Repeater

A simple tool to repeat any text string a specified number of times. Choose from multiple delimiters: newline, space, comma, tab, or custom string. Perfect for generating test data, creating string patterns, or streamlining repetitive copy-paste tasks. Supports 1 to 10,000 repetitions. All data is processed entirely in your browser — nothing is sent to any server. Copy the result to clipboard with one click.

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Text Repeater
A simple tool to repeat any text string a specified number of times. Choose from multiple delimiters: newline, space, comma, tab, or custom string. Perfect for generating test data, creating string patterns, or streamlining repetitive copy-paste tasks. Supports 1 to 10,000 repetitions. All data is processed entirely in your browser — nothing is sent to any server. Copy the result to clipboard with one click.
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Diff Merger
Diff Merger

An online tool that displays line-by-line differences between two texts and lets you merge them by choosing 'use left', 'use right', or 'use both' for each change block. Perfect for reviewing code changes and merging configuration files.

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Diff Merger
An online tool that displays line-by-line differences between two texts and lets you merge them by choosing 'use left', 'use right', or 'use both' for each change block. Perfect for reviewing code changes and merging configuration files.
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Tab Space Converter
Tab Space Converter

An online tool to convert between tabs and spaces instantly. Convert tabs to spaces or spaces to tabs in bulk. Choose indent width from 2, 4, or 8 spaces. Perfect for unifying coding style in programming and text editing. Runs entirely in the browser — no data is sent to any server.

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Tab Space Converter
An online tool to convert between tabs and spaces instantly. Convert tabs to spaces or spaces to tabs in bulk. Choose indent width from 2, 4, or 8 spaces. Perfect for unifying coding style in programming and text editing. Runs entirely in the browser — no data is sent to any server.
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Base32 Encode / Decode
Base32 Encode / Decode

Free online Base32 encoder and decoder. Supports both RFC 4648 standard Base32 and Base32Hex (Extended Hex) variants. Converts text in real-time as you type, with one-click copy. All processing runs entirely in your browser — no data is sent to any server.

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Base32 Encode / Decode
Free online Base32 encoder and decoder. Supports both RFC 4648 standard Base32 and Base32Hex (Extended Hex) variants. Converts text in real-time as you type, with one-click copy. All processing runs entirely in your browser — no data is sent to any server.
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CSS Minifier
CSS Minifier

A free online tool that minifies CSS by removing comments, whitespace, and semicolons, compressing colors (rgb→hex, #fff shortening), normalizing values, and merging redundant properties. Instantly see size reduction stats comparing before and after. Runs entirely in your browser with zero data transmission.

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CSS Minifier
A free online tool that minifies CSS by removing comments, whitespace, and semicolons, compressing colors (rgb→hex, #fff shortening), normalizing values, and merging redundant properties. Instantly see size reduction stats comparing before and after. Runs entirely in your browser with zero data transmission.
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Text Encryption
Text Encryption

Online tool to encrypt and decrypt text with AES encryption. Securely encrypt text with a password and decrypt it with the same password. Supports AES-GCM-256 and AES-CBC-256.

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Text Encryption
Online tool to encrypt and decrypt text with AES encryption. Securely encrypt text with a password and decrypt it with the same password. Supports AES-GCM-256 and AES-CBC-256.
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CSP Header Generator
CSP Header Generator

A free online tool to easily build Content Security Policy (CSP) headers with a visual GUI. Simply select or enter sources for each directive to auto-generate both HTTP header format and HTML meta tag format. Includes Strict, Moderate, and Relaxed presets.

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CSP Header Generator
A free online tool to easily build Content Security Policy (CSP) headers with a visual GUI. Simply select or enter sources for each directive to auto-generate both HTTP header format and HTML meta tag format. Includes Strict, Moderate, and Relaxed presets.
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Regex Builder
Regex Builder

Visually build regex by combining parts like character classes, quantifiers, anchors, and groups. Real-time match highlighting, 12+ preset patterns, text escaping tool, and negated character classes included.

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Regex Builder
Visually build regex by combining parts like character classes, quantifiers, anchors, and groups. Real-time match highlighting, 12+ preset patterns, text escaping tool, and negated character classes included.