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Format, validate and beautify JSON data instantly.

Compare two JSON documents and view differences side-by-side.

Convert JSON arrays to CSV for spreadsheet export and analysis.

Escape JSON into a string literal, or unescape a JSON string back into readable JSON.

Validate and lint YAML files to catch syntax and structure errors.

Diff two YAML documents and highlight changes clearly.

Format, validate, and minify XML with readable structure and quick error feedback.

Format and minify SQL queries with dialect selection and copy-ready output.

Parse .env style key-value pairs into structured JSON and rebuild a normalized environment block.

Write Markdown and preview generated HTML with optional sanitization.

Render HTML previews and inspect markup safely in an isolated iframe.

Encode text to Base64 or decode Base64 strings back to text.

Encode and decode URL components safely for use in queries and links.

Convert text into decimal ASCII, hexadecimal, or binary values and decode them back to text.

Generate secure SHA hashes from text instantly.

Generate HMAC signatures with SHA-256, SHA-384, or SHA-512 for API signing and webhook testing.

Decode JSON Web Tokens to inspect header, payload and signature details.

Build JSON Web Tokens from editable header and payload JSON with browser-side HMAC signing.

Generate strong random passwords with configurable length, character sets, and ambiguous-character filtering.

Convert curl commands into code for JavaScript, Python, Go, PHP, Java, C#, Ruby, Rust, Swift and PowerShell.

Parse URLs and query strings into editable parameters, then rebuild the query instantly.

Parse raw HTTP headers into structured fields and JSON for debugging requests and responses.

Search and understand HTTP response status codes quickly.

Parse browser user-agent strings into browser, OS, platform, and engine details.

Convert common curl commands into HTTPie syntax and translate simple HTTPie commands back into curl.

Measure the size of API responses, JSON, and text payloads instantly.

Fetch title, description, canonical, Open Graph, and Twitter tags with search and social previews.

Inspect redirect chains, final URLs, status codes, and canonicalization hops for any public URL.

Scan a page for internal and external links, then flag broken destinations and redirect chains.

Compare a page’s final URL with its canonical tag, robots directives, and crawl signals.

Test whether a URL path is allowed or blocked for a given crawler using robots.txt rules.

Audit sitemap URLs for redirects, errors, canonical mismatches, and noindex signals.

Generate redirect rules for generic CSV, Apache, Nginx, Netlify, and Vercel from a simple source-target list.

Compare plain text, logs, and snippets side by side.

Test, match and replace text with regular expressions, with live highlighting.

Convert text into camelCase, snake_case, kebab-case, PascalCase, and more.

Create SEO-friendly URL slugs from titles and phrases.

Validate compose YAML structure, inspect services, and generate a normalized formatted output.

Convert cron expressions into human readable schedules.

Convert between octal chmod values and symbolic rwx permissions, including special bits.

Calculate network, broadcast, mask, host range, and usable hosts for IPv4 CIDR blocks.

Compare semantic versions accurately, including prerelease precedence and normalized output.

Combine common project templates and custom patterns to generate a clean .gitignore file.

Generate RFC-compliant UUIDs quickly for identifiers and testing.

Compress JPG, PNG, and WebP images in the browser with quality and resize controls.

Resize images by width, height, percentage, or common social-media presets.

Convert images between JPG, PNG, and WebP with transparency-aware export choices.

Combine one or more images into a downloadable PDF with page sizing and ordering controls.

Merge multiple PDF files into one document with page count previews and ordering.

Split a PDF by page ranges or extract each page into separate files.

Convert Markdown into a clean, print-ready PDF with selectable text, page sizes, margins and page breaks.

Convert Markdown into an editable Word (.docx) document with real headings, lists, tables and code blocks.

Generate downloadable QR codes for text, URLs, email, or Wi-Fi with live preview controls.

Generate retail, logistics, and industrial code formats such as Code 128, EAN, UPC, Data Matrix, PDF417, and Aztec.

Pick a color and convert it across HEX, RGB, HSL, HSV, and CMYK formats.

Convert Unix timestamps and millisecond durations into readable dates.

Convert common engineering and everyday units for length, mass, area, volume, speed, time, and data.

Calculate percentages, percentage change, and reverse percentage values in one tool.

Measure image ratios from uploads or width and height values.

Convert Celsius, Fahrenheit, Kelvin, and Rankine with live updates and side-by-side results.

Calculate exact age in years, months, days, and total time from any birth date.

Track elapsed time with laps, split timing, and a large live display.

Set a countdown with presets, progress tracking, and quick pause or resume controls.