All Tools

Format, minify, or sort JSON with syntax highlighting. Detects errors with exact position.

Compare two JSON objects side by side. Highlights added, removed, and changed keys with a semantic path-based diff.

Convert between JSON and YAML with syntax highlighting on both panels. Supports both directions with a one-click swap.

Convert between JSON and XML with syntax highlighting on both panels. Supports both directions with a one-click swap.

Query JSON with JSONPath expressions. Supports filters, deep scan, array slices, and more.

Infer a JSON Schema (draft-07) from a sample JSON object. Options for required fields and strict mode.

Visualise JSON as an interactive collapsible tree. Click to expand/collapse, hover to copy JSONPath.

Convert between JSON arrays and newline-delimited JSON (JSONL/NDJSON) with record count and syntax highlighting.

Convert between TOML and JSON with syntax highlighting on both panels. Supports both directions with a one-click swap.

Count words, characters, unique words, sentences, paragraphs, reading time, and see top word frequency.

Compare two texts with LCS line diff, word-level inline highlighting, and split/unified view modes.

Convert text to camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, and 4 more, all 10 formats shown at once.

Sort lines A to Z, Z to A, reverse, or shuffle. Options: deduplicate, case-insensitive, trim whitespace, remove blank lines.

Extract all URLs from a block of text or HTML.

Escape or unescape strings for JSON, HTML, URL, or Unicode.

Convert text to a URL-safe, lowercase slug.

Render Markdown to HTML with a live preview.

Generate lorem ipsum placeholder text by paragraphs, words, or sentences.

Generate realistic fake test data, names, emails, phone numbers, addresses, companies, as JSON or CSV. Seedable for reproducible datasets.

Estimate LLM token count using the ~4 chars/token heuristic (approximate).

Encode characters to HTML entities or decode HTML entities to characters.

Generate SEO, Open Graph, and Twitter Card meta tags.

Encode text to Base64 or decode Base64 back to text. Supports standard and URL-safe variants.

Convert CSV to JSON array or JSON array back to CSV. RFC 4180 compliant, handles quoted fields with commas.

Convert a CSV or tab-separated table to a 2D JSON array.

Parse a real .xlsx Excel file and export its sheets as JSON or CSV. Reads the actual binary spreadsheet format, not pasted text. 100% client-side.

Convert a JSON array of objects into a real, downloadable .xlsx spreadsheet with proper column headers. 100% client-side, nothing is uploaded.

Percent-encode or decode URL components. Supports Component, Full URL, and Form (+) encoding variants.

Parse a query string into JSON, or stringify a JSON object to a query string.

Convert an image file to base64, a data: URI, or ready-made HTML, CSS, and Markdown snippets.

Paste a base64 string or data URI to preview, rotate, zoom, download, or print the image, or copy it as HTML, CSS, or Markdown.

Convert SVG markup to a URL-encoded or base64 data URI, ready to embed in CSS, HTML, or Markdown.

Look up the MIME type for a file extension, or the extension for a MIME type.

Format JS, TS, JSX, TSX, CSS, SCSS, Less, HTML, Markdown, GraphQL, YAML, JSON, or XML using Prettier.

Format and beautify SQL queries. Supports SQL, MySQL, PostgreSQL, and SQLite dialects.

Minify SQL queries to a single line, stripping comments and collapsing whitespace. Reduces size for embedding in code.

Convert a JSON array of objects to SQL INSERT statements. Supports MySQL, PostgreSQL, SQLite, and batch inserts.

Convert CSV data to SQL INSERT statements. Auto-detects column headers and infers data types.

Escape strings for safe use in SQL queries, shows dialect-specific escaping for MySQL, PostgreSQL, and SQLite.

Test regular expressions with live match highlighting, capture groups, and named groups, all client-side.

Decode a JWT token: header, payload, claims, and expiry. No secret required.

Build a cURL command from URL, method, headers, and body, with flag toggles and instant preview.

Lint and compose Conventional Commits: type picker, scope, breaking-change flag, live validation.

Parse a cron expression: plain-English description, field breakdown, next N scheduled runs, @preset shortcuts.

Parse and compare semantic version strings: major/minor/patch breakdown, pre-release flags, two-version comparison.

REPL-style math evaluator powered by mathjs: units, matrices, trig, stats, complex numbers.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes simultaneously in your browser, HEX or Base64, with hash verification.

Generate HMAC-SHA1/256/512 signatures simultaneously, HEX or Base64, key strength indicator, verify mode.

Hash passwords with bcrypt and verify them, configurable cost rounds with time estimates, side-by-side.

Generate cryptographically random passwords with entropy bits and strength rating.

Generate UUID v4 (random), v7 (time-ordered, best for database PKs), or v1 (time-based).

Convert numbers between binary, octal, decimal, and hexadecimal, all bases shown simultaneously. Uses BigInt for large numbers.

Format numbers with locale-aware thousands separators, currency, units, and notation styles.

Five percentage formulas: % of number, part of total, % change, add/remove %, and reverse %.

Convert between Roman numerals and decimal integers (1–3999) with visual breakdown.

Convert between pixel and rem CSS values with Tailwind scale reference.

Convert between length, weight, temperature, volume, area, speed, and data units, all at once.

Generate cryptographically random integers, floats, dice rolls, or pick from a list.

Convert Unix timestamps to dates. Shows all formats at once. Leave blank for the current time.

Calculate the exact difference between two dates in years, months, days, hours, and more.

Calculate exact age from a date of birth in years, months, and days.

Count working days (Mon–Fri) between two dates, excluding weekends.

View the current time across multiple timezones simultaneously.

Calculate network address, broadcast, subnet mask, host range, and usable hosts from a CIDR block.

Convert between octal chmod values and symbolic permission strings. Supports setuid (4xxx), setgid (2xxx), and sticky bit (1xxx).

Look up the meaning, description, and RFC reference for any HTTP status code.

Generate a QR code for any URL, text, WiFi, vCard, email, phone, or SMS.

Convert colors between HEX, RGB, HSL, HSV, and CMYK. Includes tints, shades, harmonies, and WCAG contrast.

Check WCAG 2.1 contrast ratio between foreground and background colors with live text preview.

Format, minify, or validate XML. Detects syntax errors with line and column numbers.

Convert XML to CSV. Auto-detects the repeating row element or specify a dot-notation path.

Run XPath 1.0 expressions against XML, returns matching elements, attributes, or text nodes.

Format, validate, or convert YAML to JSON. Detects duplicate keys and syntax errors.

Minify CSS by removing comments, collapsing whitespace, shortening hex colors, and stripping zero units.

Calculate the specificity of CSS selectors, shows (a, b, c) breakdown and numeric score. Supports multiple selectors.

Convert CSS property declarations to a camelCase JavaScript object, useful for React inline styles.

Convert CSS values between px, rem, em, pt, vh, vw, cm, mm, in and more. Shows all units at once.

Extract all CSS custom properties (--variables) from a stylesheet. Export as JSON, SCSS variables, or JS tokens.

Generate a full tint-to-shade scale from any base color. Export as CSS custom properties, Tailwind config, or SCSS.

Format or minify HTML using Prettier. Fixes indentation, attribute ordering, and self-closing tags.

Convert HTML to clean Markdown. Handles headings, links, lists, code blocks, tables, and images.

Strip all HTML tags and return clean plain text. Decodes HTML entities and preserves paragraph breaks.

Parse OG and Twitter Card meta tags from HTML. Shows what Google, Twitter, and LinkedIn will display.

Reverse characters, words, or lines. Includes Unicode flip mode (ʇxǝʇ uʍop ǝpısdn).

Repeat any text N times with a custom separator or one per line.

Convert text to binary (0s and 1s) or decode binary back to text. UTF-8 aware.

Encode text to Morse code or decode Morse back to text. Letters separated by spaces, words by /.

Check if text is a palindrome or find all palindromes within a block of text. Configurable case and punctuation.

Count the frequency of each character in your text. Shows count, percentage, and a visual bar chart.

Check the strength of a password: entropy, character sets, common patterns, and crack-time estimate.

Generate signed JWTs with HS256/HS384/HS512. Set custom payload, expiry, issuer, subject, and audience.

Generate TOTP/HOTP codes from a Base32 secret, or generate a new secret. Compatible with Google Authenticator.

Generate random MAC addresses with configurable format, unicast/multicast, and optional prefix.

Encode text to hexadecimal bytes or decode hex back to text. Supports space, comma, and 0x separators.

Browse the full ASCII character table with decimal, hex, octal, binary, and character name. Lookup any character.

Look up Unicode code points. Enter a character, code point (U+1F600), or text to analyze all characters.

Convert internationalized domain names to Punycode (ACE) and back. Encode/decode individual labels or full domains.

Encode or decode Base32 in RFC 4648, Base32hex, Crockford, or z-base-32 variants.

Encode or decode Base58 using Bitcoin, IPFS, or Flickr alphabets.

Break a URL into its components: scheme, host, port, path, query parameters, and hash. Useful for debugging API endpoints and link structures.

Calculate GCD and LCM for two or more integers. Shows step-by-step prime factorization.

Check if a number is prime, find its prime factorization, divisors, and nearest primes.

Generate Fibonacci sequences, find the Nth number, or check if a number is Fibonacci. Uses bigint for large values.

Perform bitwise AND, OR, XOR, NOT, NAND, NOR, XNOR, and bit-shifts. Shows results in decimal, binary, hex, and octal.

Convert numbers to/from scientific notation. Shows engineering notation, SI prefixes, and significant figures.

Add, subtract, multiply, divide, simplify, or compare fractions. Shows step-by-step working with LCM.

Add, subtract, multiply matrices, find determinant, inverse, or transpose. One row per line, values space-separated.

Convert multiple timestamps at once: Unix seconds, milliseconds, or ISO 8601. One per line.

Browse all 148 CSS named colors, look up a color by name or hex, or find the nearest named color for any hex value.

Convert a cURL command to fetch(), axios, Python requests, or Node.js http. Handles headers, body, auth, and flags.

Generate .gitignore files for 24 stacks: Node, Python, Go, Rust, React, Next.js, Django, Rails, Flutter, Docker, and more.

Parse and display git diff output as a structured, colored side-by-side or unified diff.

Generate production-ready Dockerfiles for Node, Python, Go, Rust, Java, PHP, Ruby, Deno, and Bun.

Generate docker-compose.yml with services for Postgres, MySQL, MongoDB, Redis, Nginx, MinIO, and more.

Build a docker run command interactively: ports, volumes, env vars, networks, and restart policy.

Generate .dockerignore files for common stacks to speed up Docker builds.

Build grep, ripgrep (rg), or ag (The Silver Searcher) commands with flags explained.

Build find commands with type, name, size, mtime, and exec filters.

Parse and validate .env files, or convert them to JSON, shell export statements, or docker run -e flags.

Escape strings for Bash, PowerShell, single-quote, double-quote, and ANSI-C quoting. Warns about injection risks.

Browse 44 HTTP headers with descriptions and real example values. Filter by category: request, response, security, caching, CORS, or content.

Browse 33 standard Unix/Linux exit codes: bash conventions, fatal signal codes, and BSD sysexits.h. Search by code, name, or meaning.

Generate CORS headers for nginx, Apache, Express, FastAPI, Django, and raw HTTP headers.

Parse a User-Agent string to extract browser, engine, OS, device, and CPU information.

Convert IP addresses between dot-decimal, decimal, hex, binary, and IPv6 expanded/compressed formats.

Format, minify, or validate GraphQL queries and schema definitions.

Convert a JSON object to Go structs with json tags. Supports nested types, arrays, and omitempty.

Convert a JSON object to TypedDict, dataclass, or Pydantic model with type annotations.

Generate a Zod schema from a JSON object or array with type inference for emails, URLs, UUIDs, and dates.

Generate nginx server blocks for static sites, SPAs, reverse proxies, and PHP apps with SSL and security headers.

Generate a package.json with correct scripts and dependencies for Node, React, Next.js, a library, or a CLI.

Generate LICENSE files for MIT, Apache 2.0, GPL-3.0, BSD-2, BSD-3, ISC, MPL-2.0, Unlicense, CC0, and more.

Mix two colors at adjustable ratios. Shows a 5-step gradient and complementary/analogous harmony swatches.

Build box-shadow and text-shadow CSS visually. Layer multiple shadows, adjust color and opacity, and copy the CSS.

Live HTML/CSS/JS editor with a sandboxed iframe preview. Switch between split, code-only, and preview-only views.

Generate RSA key pairs (2048/4096-bit) entirely in your browser using the Web Crypto API. Never leaves your device.

Generate cryptographically secure HMAC secret keys for HS256/384/512 JWTs, RFC 7518 compliant, with ready .env, Node.js, Python snippets.

Generate a PKCS#10 Certificate Signing Request (CSR) and matching private key for SSL/TLS certs. RSA or ECDSA, with Subject Alternative Names.

Decode a PEM/X.509 certificate: subject, issuer, validity window, Subject Alternative Names, key algorithm, and fingerprints. 100% client-side.

Generate an Ed25519 or RSA SSH key pair in your browser: OpenSSH-format public key, private key, and SHA-256 fingerprint. Never leaves your device.

Sign a JWT with RSA (RS256/384/512) or ECDSA (ES256/384) asymmetric keys. Generates a fresh key pair per sign, entirely in your browser.

Convert a JSON Web Key (JWK) to PEM format or back: RSA, ECDSA, or Ed25519, public or private. Done entirely in your browser.

Encrypt or decrypt text with AES-GCM (128/192/256-bit) and PBKDF2 key derivation. 100% client-side.

Build linear, radial, and conic CSS gradients visually. Add color stops, adjust angles, and copy the CSS.

Convert a JSON array to CSV with configurable delimiter and null handling.

Fix common JSON errors: trailing commas, single quotes, unquoted keys, JS comments.

Strip whitespace from JSON. Optionally remove nulls and sort keys.

Generate TypeScript interfaces or types from a JSON sample.

Convert XML to JSON. Attributes are prefixed with @, text nodes use #text.

Convert XML documents to YAML format.

Remove whitespace and comments from XML to reduce file size.

Escape or unescape XML special characters: &, <, >, ", &apos;.

Convert YAML documents to JSON format.

Convert YAML configuration files to TOML format.

Generate CSS border shorthand with style, width, color, radius and per-side control.

Build CSS filter() with blur, brightness, contrast, grayscale, hue-rotate, invert, and more.

Generate CSS transitions with 20+ named easing curves including cubic-bezier presets.

Convert PostgreSQL SQL to MySQL: type mapping, SERIAL to AUTO_INCREMENT, double quotes to backtick identifiers.

Add TypeScript annotations to JavaScript: types on params, return types, convert require() to import.

Generate SQL INSERT statements from CSV or JSON data with dialect support.

Convert between Tab-Separated Values and Comma-Separated Values.

Pick, reorder, and rename columns from a CSV file.

Sort, filter, deduplicate, pluck, paginate, and transform JSON arrays.

Parse INI / .properties files to JSON, or convert JSON back to INI format.

Scan a QR code from an uploaded image using the browser BarcodeDetector API.

Pixel-level diff between two images, highlights changed pixels in red.

Convert any image to ASCII art using character brightness mapping.

Flip and rotate images with custom angle and download the result.

Generate a CREATE TABLE SQL statement from a JSON object or CSV sample. Infers column types, adds id and timestamp columns.

Build a SELECT query visually: choose columns, add JOINs, WHERE clauses, GROUP BY, ORDER BY, and LIMIT.

Convert MySQL DDL and DML to PostgreSQL syntax. Handles type mapping, AUTO_INCREMENT, backtick identifiers, and MySQL-specific functions.

Minify HTML by removing comments, collapsing whitespace, and collapsing boolean attributes. Preserves <script>, <style>, and <pre> content.

Extract tables from HTML and export as JSON, CSV, or Markdown. Handles rowspan/colspan and nested tags.

Extract all <meta> tags, <title>, Open Graph, Twitter Card, canonical links, and JSON-LD from an HTML document.

Convert HTML to JSX: rename class to className, for to htmlFor, convert inline styles to objects, and handle void elements.

Validate CSV structure: check for consistent column counts, duplicate headers, empty headers, and infer column data types.

Flatten nested JSON to dot-notation keys, or restore a flat object back to nested structure.

Convert YAML configuration to .env format or vice versa. Nested YAML keys are flattened with _ separators.

Render Mustache templates with JSON data. Supports {{variable}}, {{{unescaped}}}, {{#section}}...{{/section}}, and {{^inverted}}.

Count word frequencies in text. Remove common stop words, filter by minimum length, and export as table, JSON, or CSV.

Measure similarity between two texts using Levenshtein distance, Jaro-Winkler, cosine similarity, and longest common subsequence.

Convert numbers to English words. Supports integers, decimals, currency amounts, and ordinal forms up to quintillions.

Minify JavaScript by removing comments and collapsing whitespace. Preserves string literals and template literals.

Calculate the next N run times for a cron expression (5-field or 6-field with seconds). Supports *, /, -, , and named values.

Validate XML well-formedness: check tag matching, unclosed tags, attribute quoting, and unescaped special characters.

Convert CSS property declarations to equivalent Tailwind CSS utility classes. Covers display, flex, spacing, typography, and more.

Generate BIND-format DNS zone file records: A, AAAA, CNAME, MX, TXT (with SPF), DMARC, NS, and SOA.

Look up live A, AAAA, CNAME, MX, TXT, NS, SOA, and SRV records for any domain, or enter an IP address for a reverse (PTR) lookup, against your choice of resolver.

Check whether a DNS change has propagated across 34 named public resolvers in 24 countries, live and shown by name.

Connect live to any domain and check its real SSL/TLS certificate: chain, expiry, SANs, TLS version, and cipher.

Fetch a live page and check its real title, meta description, canonical, robots.txt, sitemap, headings, Open Graph, schema, and links.

Connect live to any URL and check its real HTTP security headers: HSTS, CSP, X-Frame-Options, cross-origin isolation, cookie flags, and information-disclosure headers.

Trace the real HTTP redirect chain for any URL: every hop, its status code, response time, redirect loops, and HTTPS downgrades.

Connect live to any URL and check its real response headers: Cache-Control, compression, ETag/Last-Modified validators, and CDN fingerprinting.

Scan any live URL for mixed content, exposed .git/.env files, outdated JS libraries, missing Subresource Integrity, and HTTPS enforcement.

Check any URL for SEO, PageSpeed, security, HTTP headers, and DNS issues with one complete website health check and report.

Look up any IPv4/IPv6 address, or your own public IP, and see its country, region, city, ISP, and ASN. Real-time query, not a generator.

A searchable cheat sheet of 60+ Git commands for branching, undoing mistakes, stashing, rebasing, and remotes, each with a plain-English explanation.

Enter your URL and get a real Lighthouse audit: Core Web Vitals, a performance score, and fixes to make, powered by Google's PageSpeed Insights API.

A visual wizard for AWS S3 bucket policies: live JSON preview, risk warnings, and presets for public sites, IAM access, and CloudFront.

A curated library of 26 production-ready regex patterns for emails, URLs, IPs, dates, passwords, UUIDs, file paths, and more.

Simulate how your images look to people with deuteranopia, protanopia, tritanopia, or achromatopsia using pixel-level color matrix filters.

Crop images in your browser with drag handles, aspect ratio constraints, and multiple output formats. 100% client-side.

Visually generate CSS clip-path shapes: polygon (with drag handles), circle, ellipse, and inset. Includes common shape presets.

Create CSS mesh gradient backgrounds by layering radial gradients with adjustable color, position, and spread. One-click presets.

Generate a production-ready Kubernetes Deployment YAML with resource limits, health probes, env vars, and rolling update strategy.

Generate a Kubernetes Service YAML (ClusterIP, NodePort, LoadBalancer) with optional Ingress and TLS configuration.

Generate Kubernetes ConfigMap or Secret YAML from key=value pairs. Secret values are automatically base64-encoded.

Convert CSV to a Markdown table, parse one back to CSV, or convert data pasted from Excel or Sheets to Markdown. Optional header row and bold styling.

Auto-generate a linked table of contents from Markdown headings with configurable depth and list style.

Analyze text readability with Flesch Reading Ease, Flesch–Kincaid Grade, Gunning Fog, SMOG, and ARI scores.

Apply multiple find-and-replace rules to text at once. Supports plain text and regex patterns.

Generate CSS keyframe animations from 15 built-in presets (fadeIn, slideInUp, bounce, spin, and more) or define custom keyframes.

Generate CSS Grid layouts with named areas, auto-fit responsive columns, gap, and alignment controls.

Build CSS Flexbox layouts with all container and item properties, including gap, wrap, alignment, and order.

Sort JSON object keys alphabetically (ascending or descending), recursively through nested objects.

Compute mean, median, mode, variance, std dev, quartiles, IQR, skewness, and geometric mean for a dataset.

Generate arithmetic, geometric, Fibonacci, prime, square, cube, triangular, power, factorial, or custom formula sequences.

Generate a robots.txt file from presets (allow all, block all, SEO-friendly) or build custom allow/disallow rules per user-agent.

Generate an XML or TXT sitemap from a list of URLs with configurable base URL, changefreq, priority, and lastmod date.

Generate Apache .htaccess rules for HTTPS redirects, www/non-www, SPA/WordPress routing, caching, GZIP, and security headers.

Convert TOML to YAML using a pure-TypeScript parser with no external dependencies. For the reverse direction, see YAML to TOML.

Resize images in your browser. Set width/height, choose format (JPEG/PNG/WebP), adjust quality, and download the result.

Generate favicon PNG files in 7 standard sizes (16–512px) from any image. Add padding, round corners, and background color.

Extract a color palette from any image using pixel quantization. Click anywhere on the image to sample a specific color.

Optimize SVG files in your browser. Remove comments, metadata, editor data, collapse whitespace, and shorten color values.

View EXIF metadata in a JPEG: camera model, settings, and GPS location, then strip it all before sharing. 100% client-side, nothing is uploaded.

Drop a file and compute its MD5, SHA-1, SHA-256, and SHA-512 checksums to verify integrity. 100% client-side, the file never leaves your browser.

Generate .editorconfig files with root style rules and per-language overrides for Markdown, Python, Go, Make, YAML, and JSON.

Generate a GitHub Actions CI workflow for Node, Python, Go, or Docker projects: checkout, install, test, build, and optional Docker push.

Convert Conventional Commits (paste your git log) into a Keep a Changelog formatted CHANGELOG.md, grouped by Added/Fixed/Changed/Breaking.

Generate a downloadable unified diff (.patch) file from two text blocks, applicable with `git apply` or `patch`.

Build a Content-Security-Policy header interactively: default-src, script-src, style-src, img-src, and more. Outputs raw header, nginx, and Express.

Generate a Web App Manifest (manifest.json) for installable PWAs: name, icons, colors, display mode, and the matching HTML tags.

Generate ULIDs: sortable, URL-safe 26-character identifiers combining a millisecond timestamp with 80 bits of randomness.

Generate NanoIDs: compact, URL-safe, cryptographically random unique IDs with a configurable size and alphabet.

Generate CUID2 identifiers: collision-resistant, horizontally scalable, secure IDs designed for use as database primary keys.

Compute a target date by adding or subtracting days, weeks, months, or years from a base date.