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Fast Text Format

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Fast Text Format Tools

The ultimate collection of lightning-fast utilities to format, convert, and streamline your workflow.

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Code & Formatting

Base64 to File

Decode Base64 strings or Data URIs back into downloadable files (images, PDFs, documents, audio) with instant live preview.

Code Beautifier

Beautify, validate, and minify your JSON, JavaScript, CSS, and HTML code into clean, readable syntax.

CSS Format

Format, beautify, validate, and minify CSS code with custom indentation.

CSS Visual Generators

Visually generate and export CSS code for Box Shadows, Gradients, Flexbox, and Grid layouts.

CSV to JSON/SQL

Convert CSV data to JSON arrays or SQL INSERT statements.

cURL to Fetch

Easily convert cURL commands into JavaScript Fetch API code.

HTML / XML

Beautify, minify, and clean up messy code instantly.

HTML to JSX

Client-side tool to transform HTML tags/attributes into React-compatible JSX.

HTML to Tailwind CSS

Convert standard inline styles and CSS declarations into Tailwind CSS utility classes with live preview.

JS Obfuscator

Transform readable JavaScript code into unreadable, minified code to protect logic.

JSON to Code

Convert JSON objects into typed models for various languages.

JSON Tree Viewer

Visually inspect, expand, collapse, search, and filter complex JSON payloads with path inspection.

Markdown

Write raw markdown with a live HTML preview.

Source Map Viewer

Client-side tool to upload a .map file and de-minify stack traces.

SQL Formatter

Beautify and format messy SQL queries.

String Escape & Unescape

Safely escape (and unescape) quotes, backslashes, and newlines for use in JSON strings, SQL queries, HTML, and Java/C#.

SVG Optimizer

Minify and clean raw SVG code.

SVG to PNG/WEBP

Client-side tool utilizing an HTML canvas to rasterize SVG code or files into downloadable images.

XML Utilities

Format and minify XML strings.

YAML <-> JSON

Instantly convert between YAML and JSON.

Data & Crypto

Generators & Utilities

ASCII Art

Generate large ASCII art text banners.

Barcode Generator

Client-side tool using a canvas to generate linear barcodes (UPC, EAN, Code39) from text.

CHMOD Calc

Calculate Linux file permissions easily.

Color Contrast

Check WCAG color contrast accessibility.

Color Format

Instantly convert HEX, RGB, and HSL color codes.

Cron Decoder

Translate cron schedules into human-readable text.

Favicon Generator

Convert standard images into universally compatible .ico files and generate standard web app icon sizes.

Image Base64

Convert image files into Base64 Data URI strings and CSS background-image properties.

Image Compressor

Compress and optimize JPEG, PNG, WEBP, and AVIF images locally in your browser.

Markdown Table Generator

A visual grid editor that allows users to easily add rows/columns and instantly outputs perfectly formatted Markdown table syntax.

Meta Tag & Open Graph Generator

Generate and visually preview SEO meta tags, Twitter Cards, and Facebook Open Graph tags.

Mock Data Generator

Generate hundreds of rows of fake test data (names, emails, addresses, dates, credit cards) and export it as CSV, JSON, or SQL INSERT statements for database testing.

Password Gen

Create strong, secure passwords using cryptographic algorithms.

PDF Toolkit

Merge, split, extract, rotate, and reorder PDF pages 100% locally in your browser.

Placeholder Text

Create random placeholder text for UI mockups.

QR Code

Create scalable, scannable QR codes from text or URLs.

Regex Tester & Builder

Test regular expressions with real-time match & capture group highlighting, syntax explanation breakdown, and multi-string test modes.

Robots.txt Generator

Build valid robots.txt rules, crawler directives, and block AI scrapers.

UUID / GUID

Instantly generate universally unique identifiers (v4).

XML Sitemap Generator

Construct valid XML sitemaps with custom URLs, change frequencies, and priorities for search engines.

Finance & Units

Networking

Generators & Utilities

Robots.txt Generator

Build valid robots.txt rules, crawler directives, and block AI scrapers.

User-Agent Directives
Global Directives
Generated robots.txt

How to Use

Configure user-agent crawling rules, disallow/allow paths, and global sitemap directives for search engines or select a preset to quickly secure your site.

Frequently Asked Questions

What is a robots.txt file and where does it live?

A robots.txt file is a plain text file placed at the top-level root of your website (e.g., https://example.com/robots.txt). It follows the Robots Exclusion Protocol (REP) to instruct web crawlers and automated search engine indexers which sections of your site they are allowed or forbidden to crawl.

Does robots.txt prevent private pages from being indexed?

No. A disallow rule in robots.txt only prevents search engine bots from crawling the content of the page; if other websites link to that URL, Google can still index the URL and display it in search results without a snippet. To completely block a page from appearing in search results, use a <meta name="robots" content="noindex"> tag or HTTP header.

How can I block AI training scrapers like GPTBot or ClaudeBot?

Select the 'Block AI Scrapers' preset. This adds explicit disallow rules for popular LLM crawler user-agents, including GPTBot (OpenAI), CCBot (Common Crawl), ClaudeBot and anthropic-ai (Anthropic), PerplexityBot, Bytespider (ByteDance), and Diffbot.

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