IT Tools

Generate secure passwords and passphrases with customizable length and character types.

Check password strength, entropy, and estimated crack time.

Generate cryptographically secure random strings with custom length and character options.

Generate SHA-256, SHA-384, SHA-512, and MD5 hash digests from any text input.

Generate HMAC-SHA256, HMAC-SHA384, and HMAC-SHA512 message authentication codes.

Decode PEM certificates to view subject, issuer, expiry, SANs, and fingerprints.

Encode and decode text with Base64, URL encoding, and HTML entities. Convert text instantly with this free online string encoder and decoder...

Encode images to Base64 data URIs for embedding in CSS and HTML.

Encode text to HTML entities or decode entities back to plain text.

Escape and unescape text for JSON, URL, HTML, backslash, and Unicode formats.

Generate cryptographically secure UUID v4 identifiers for databases, APIs, and distributed systems.

Generate QR codes from any text or URL with instant download.

Encode and decode text to Base64 online. Supports standard and URL-safe Base64 encoding with instant results.

Encode and decode URLs online. Convert special characters to percent-encoded format for safe use in web addresses.

Convert between hexadecimal and ASCII text. View hex, binary, and decimal representations with multiple output formats.

Format, prettify, minify, and validate JSON instantly. See key count, nesting depth, and data type. Free online JSON formatter with copy but...

Convert between YAML and JSON formats bidirectionally with instant preview.

Convert CSV data to JSON with configurable headers and delimiter options.

Convert JSON arrays of objects to CSV format with configurable delimiters.

Convert JSON data to clean, readable YAML format with size comparison and key count analysis.

Generate TypeScript interface definitions from JSON data with automatic type inference and nested object support.

Convert XML documents to JSON with attribute and nested element support.

Format and indent SQL queries with keyword uppercasing and clause alignment.

Minify or beautify JSON, CSS, HTML, and JavaScript code with size comparison.

Format, beautify, and minify HTML code with proper indentation, tag counting, and size analysis.

Format, beautify, and minify CSS stylesheets with rule counting, selector analysis, and size comparison.

Format, beautify, and minify JavaScript code with function counting, line analysis, and size comparison.

Convert HTML to JSX for React. Automatically converts class to className, for to htmlFor, self-closes void elements, and transforms inline styles.

Convert CSV data to downloadable Excel .xlsx files entirely in the browser.

Upload an Excel .xlsx file and convert it to CSV format with delimiter options.

Convert Markdown to clean HTML with live preview. Supports headings, lists, code blocks, tables, and more.

Convert HTML markup to Markdown syntax. Handles headings, formatting, links, tables, and code blocks.

Convert plain text files to properly formatted, downloadable PDF documents with customizable font size and page layout.

Convert CSV data to a formatted PDF table with headers, alternating row colors, and proper pagination.

Convert Markdown documents to beautifully formatted PDF files with headings, lists, code blocks, and tables.

Convert Excel spreadsheets to formatted PDF tables preserving column structure and data formatting.

Convert Word documents to PDF format preserving headings, paragraphs, lists, and basic formatting.

Convert OpenDocument .odt files to Microsoft Word .docx format entirely in the browser.

Convert OpenDocument .odt files to PDF format with headings and paragraphs entirely in the browser.

Convert Microsoft Word .docx files to OpenDocument .odt format for LibreOffice and OpenOffice.

Calculate network address, broadcast, subnet mask, and usable hosts from IP and CIDR prefix.

Analyze IP addresses for class, private/public status, and optional geolocation lookup.

Query DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA) via DNS-over-HTTPS.

Identify network device manufacturers from MAC address OUI prefixes.

Search common network ports by number or service name with protocol and category info.

Break any URL into its components: scheme, host, port, path, query parameters, and fragment.

Parse raw HTTP headers and analyze security header coverage with a letter grade.

Analyze CORS response headers and test cross-origin request scenarios.

Build Content-Security-Policy headers visually with per-directive source controls.

Decode and inspect JWT tokens to view header, payload, claims, and expiration status.

Convert colors between HEX, RGB, and HSL formats with WCAG contrast checking.

Pick any color from a visual gradient palette and get HEX, RGB, and HSL codes.

Complete HTTP status code reference with search and category filtering across all 1xx-5xx codes.

Preview how your page looks when shared on Facebook and Twitter with live OG tag editing.

Convert cURL commands to Python, JavaScript, Ruby, and PHP code instantly.

Generate Nginx server block configurations with SSL, reverse proxy, and caching options.

Generate Dockerfiles for Ruby, Python, Node.js, Go, and Java with multi-stage build support.

Generate .gitignore files by selecting languages, frameworks, editors, and operating systems.

Validate .env files for syntax errors, duplicate keys, and exposed secrets.

Parse cron expressions to see human-readable schedules and next run times.

Build cron expressions visually by selecting minute, hour, day, month, and weekday fields.

Convert between numeric and symbolic Unix file permissions with a visual toggle grid.

Generate and test robots.txt files online. Create crawler rules, add sitemaps, and test if URLs are allowed or blocked.

Build and test regular expressions with live match highlighting and capture groups.

Test regular expressions with live match highlighting, match count, and capture group display. Free online regex tester with global, case-in...

Count words, characters, sentences, paragraphs, and estimate reading and speaking time. Paste your text for instant results with this free w...

Count characters, letters, digits, special characters, lines, and words in any text. Get detailed character analysis with this free online c...

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case. Free online text case converter with...

Remove duplicate lines from text instantly. See unique line count, duplicates removed, and get clean deduplicated output. Free online duplic...

Compare two texts side by side with line-by-line diff highlighting. See additions, removals, and unchanged lines. Free online text compariso...

Generate lorem ipsum placeholder text by paragraphs, sentences, or words with classic opening and HTML output.

Write markdown and see a live HTML preview. Supports headings, bold, italic, links, lists, code blocks, and more. Free online markdown previ...

Build markdown tables visually with an editable grid and instant output.

Convert between Unix epoch timestamps and human-readable dates in both directions.

Convert SVG to PNG images online using the browser Canvas API. Adjust scale and download the result.