Developer Utilities
JSON formatters, Base64, Regex testers, hash generators & minifiers.
JSON Formatter & Validator
Format, beautify, minify, validate, and view JSON data online with instant syntax highlighting and error detection.
Base64 Encoder & Decoder
Encode text or binary data into Base64 format or decode Base64 back into raw string format.
URL Encoder & Decoder
Encode URI components safely for web requests or decode encoded URL strings back to human-readable form.
UUID / GUID Generator
Generate bulk RFC 4122 v4 Universally Unique Identifiers (UUIDs) instantly.
CSV to JSON Converter
Easily convert CSV data to clean JSON format. Turn tabular spreadsheets into structured JSON.
TSV to JSON Converter
Transform tab-separated values (TSV) into structured JSON without delimiter conflicts.
JSON to CSV Converter
Transform your JSON data into clean, exportable CSV format with automatic header detection.
JSON to TSV Converter
Transform JSON arrays into tab-separated values (TSV) with one click.
YAML to JSON Converter
Convert YAML configuration files into structured JSON for APIs and modern web tooling.
JSON to YAML Converter
Convert JSON data into clean, indented YAML for Kubernetes, CI/CD, and config files.
JSONL Validator & Converter
Validate JSON Lines line-by-line, detect syntax errors by row number, and convert to clean JSON arrays.
URL Query Parameters to JSON
Convert URL query parameters into a structured JSON object, or convert JSON into query strings.
.env to netlify.toml Converter
Convert .env environment variables into the [build.environment] format for netlify.toml files.
JWT Parser & Token Debugger
Decode JWT tokens to view header, payload claims, and expiration status without sending secrets anywhere.
Hash Generator (SHA-256, SHA-512, MD5)
Generate cryptographically secure SHA-256, SHA-512, SHA-384, and SHA-1 hashes for any text.
SVG Viewer & Code Optimizer
Instantly preview, scale, and optimize SVG vector markup with transparent grid backgrounds.
SQL Query Minifier
Minify SQL queries by stripping single-line and multi-line comments and collapsing whitespace.
Random String & Password Generator
Generate cryptographically secure random strings, API keys, and passwords with custom character sets.
Color Contrast Checker (WCAG)
Check color contrast ratios for WCAG 2.1 AA and AAA accessibility compliance and ADA standards with live UI preview.
CSS Inliner for HTML Email
Convert <style> block CSS into inline style attributes for bulletproof HTML email rendering.
Regular Expression (Regex) Tester
Test and debug regular expressions in real-time with match counting and capture group extraction.
File Integrity & Checksum Verifier
Generate SHA-256, SHA-512, and SHA-1 checksums for any file in browser memory and verify against known hashes.
QR Code Generator
Generate downloadable QR codes for URLs, text, Wi-Fi, or contacts with custom colors.
Markdown to HTML Converter
Convert Markdown text to clean HTML markup with live side-by-side visual preview.
HTML, CSS & JS Code Minifier & Formatter
Minify HTML, CSS, and JavaScript code to reduce file size or format for readability.
QR Code Generator
Create high-resolution QR codes for websites, plain text, WiFi network logins, and email addresses.
Discord Text Formatter & Markdown Generator
Format Discord messages with bold, italics, spoilers, blockquotes, headers, and syntax-highlighted code blocks in real-time.
Words Generator by Changing Out Vowels
Swap out vowels in any seed word to generate phonetic variations, Scrabble anagrams, brand name ideas, and dictionary matches.
HTML-encode Text
Escape HTML special characters (&, <, >, ", ') into safe HTML entity codes.
HTML-decode Text
Decode HTML entities (<, >, &, etc.) back into raw text characters.
Extract Text from HTML
Strip all HTML tags, script blocks, and styles to extract pure plain text content.
Extract Text from XML
Extract readable text content and CDATA blocks from raw XML markup.
Extract Text from JSON
Extract and isolate all string values and textual data from complex JSON files.
JSON Stringify Text
Escape text, quotes, and newlines into a valid JSON string literal with double quotes.
JSON Unstringify Text
Un-escape JSON string literals (\n, \t, \") back into natural readable text.
JSON Minifier
Compress and minify JSON data by stripping all whitespace and newlines.
JSON Validator
Validate JSON syntax with detailed error highlighting, line numbers, and auto-formatting.
SQL Formatter
Beautify and format messy SQL queries with clean indentation and uppercase keywords.
CSS Minifier
Minify CSS stylesheets by removing comments, whitespace, and redundant semicolons.
JavaScript Minifier
Minify JavaScript code by stripping comments and redundant whitespace.
HTML Minifier
Compress HTML markup by removing comments, redundant spaces, and empty lines.
JWT Decoder
Decode JSON Web Tokens (JWT) to inspect header, payload claims, and expiration dates.
Meta Tag Generator
Generate complete HTML meta tags for Google SEO, mobile viewports, and search rankings.
Schema Markup Generator
Create rich JSON-LD structured data for FAQ, Article, Product, and Organization schemas.
Robots.txt Generator
Generate customized robots.txt files with crawl directives and sitemap declarations.
XML Sitemap Generator
Generate XML sitemaps (<urlset>) with lastmod, changefreq, and priority tags.
Epoch / Unix Timestamp Converter
Convert Unix epoch timestamps (seconds & milliseconds) to human-readable dates and back.
Cron Expression Generator & Crontab Builder
Visual cron schedule builder and plain English translator supporting Linux crontab, Spring Boot / Quartz, and AWS EventBridge formats.
XML Formatter
Indent, beautify, and format messy XML documents with syntax error checking.
Email Subject Line Tester
Analyze email subject lines for open rates, mobile cutoff length, and spam trigger words.
Keyword Density Checker
Calculate keyword frequency and density percentages across articles to optimize on-page SEO.
Email Signature Generator
Create professional, responsive HTML email signatures with photo, job title, and social links.
Email Address Extractor
Extract, filter, and deduplicate all email addresses from messy text, logs, or HTML.
Phone Number Extractor
Extract international and domestic telephone numbers from documents and text.
URL Extractor
Extract, validate, and isolate all web links (HTTP/HTTPS) from text and code.
IP Address Extractor
Extract and isolate IPv4 addresses from server logs, firewalls, and network dumps.
Hidden Text Revealer
Detect, reveal, and strip zero-width characters, invisible watermarks, and BOM marks.
Barcode Generator
Generate Code 128, EAN-13, and Code 39 barcodes as vector SVG with instant download.
AES Encrypt
Encrypt text securely using military-grade AES-256-GCM encryption with password key derivation.
AES Decrypt
Decrypt AES-256-GCM encrypted ciphertext back to plaintext using your secret password.
Markdown Editor & Live Preview
Write, format, and preview Markdown with side-by-side live rendering and file export.
cURL to Code Converter
Convert raw cURL command lines into Python (Requests/HTTPX), JavaScript (Fetch/Axios), Node.js, Go, Rust, PHP, Java, and Dart.
HAR File Analyzer & Sanitizer
Inspect HTTP Archive (.har) network logs, analyze API requests and waterfall timings, and sanitize passwords, bearer tokens, and session cookies.
SVG to React / React Native Converter
Convert raw SVG vectors into production-ready React JSX, TypeScript TSX, or React Native SVG components with forwardRef, memo, and currentColor support.
PII & Secret Redactor
Mask and sanitize Personally Identifiable Information (PII), credit cards, SSNs, phone numbers, API keys, and JWT tokens before sharing logs or prompting LLMs.
SQL to TypeScript & Zod Generator
Convert SQL CREATE TABLE DDL queries into TypeScript interfaces, Zod runtime validation schemas, or mock JSON objects instantly.
Cron Expression Humanizer
Translate cryptic 5-part cron expressions into plain English descriptions and view the next scheduled execution times.
AI Chat Export Viewer & Search
Browse, search, and analyze your ChatGPT and Claude export ZIP archives locally with instant full-text search.
Sensitive Data Scrubber & Reversible Masker
Mask Aadhaar, PAN, GSTIN, credit cards, emails, and API keys before prompting AI, then restore original data with 1 click.