Random Bitcoin Address Generator Generate random Bitcoin wallet addresses for testing and development. Create properly formatted addresses in all four major Bitcoin address formats — Legacy (P2PKH), Script Hash (P2SH), SegWit (Bech32), and Taproot (Bech32m). Ideal for testing payment processing integrations, populating test databases, and validating address format checks. How to Use Set the number ...
Try the Tool »URL Opener Open multiple URLs at once by pasting a list and clicking a single button. Instead of opening links one by one, paste your entire URL list and let this tool open them all in new browser tabs simultaneously. Ideal for QA testing, checking multiple pages, reviewing search results, or opening a batch of ...
Try the Tool »Open Graph Checker Inspect and preview the Open Graph meta tags on any URL to see exactly how your page will appear when shared on social media. This tool fetches the page, extracts all OG and Twitter Card meta tags, and shows you a visual preview of the social share card — plus flags any ...
Try the Tool »Redirect Checker Trace the full redirect chain for any URL and see every hop along the way. This tool follows redirects from start to finish, showing the HTTP status code, URL, and response time at each step. Essential for debugging redirect chains, verifying SEO migrations, and finding redirect loops before they cause problems. How to ...
Try the Tool »HEX to Text Converter Convert hexadecimal strings back to readable text instantly. Paste hex values in any common format — with spaces, dashes, 0x prefixes, or raw hex — and get the decoded text output. The reverse of our Text to Hex converter, perfect for decoding hex dumps, debugging network data, and reading encoded strings. ...
Try the Tool »SQL Escape Escape special characters in strings for safe use in SQL queries. Supports multiple SQL dialects including MySQL, PostgreSQL, SQL Server, and SQLite. Prevents SQL injection by properly escaping quotes, backslashes, and other dangerous characters before they reach your database. How to Use Paste your raw string into the input area, select your SQL ...
Try the Tool »JSON Escape and Unescape Escape and unescape special characters in JSON strings. Convert raw text with quotes, newlines, tabs, and Unicode characters into properly escaped JSON string values, or reverse the process to recover the original text from escaped JSON. Essential for working with APIs, configuration files, and any JSON data handling. How to Use ...
Try the Tool »JavaScript Escape and Unescape Escape and unescape special characters in JavaScript string literals. Convert raw text with quotes, newlines, tabs, and Unicode into properly escaped JavaScript strings, or reverse the process to recover original text. Choose between single-quote and double-quote wrapping styles. How to Use Paste your text into the input area, select Escape or ...
Try the Tool »PHP Array to JSON Converter Convert PHP array syntax to valid JSON format instantly. Paste PHP arrays using either the classic array() or modern [] short syntax, and get properly formatted JSON output. Handles nested arrays, associative key-value pairs, PHP constants (true, false, null), and trailing commas. How to Use Paste your PHP array code ...
Try the Tool »Cron Next-Run Time Calculator Enter a cron expression and instantly see when it will fire next. This tool parses standard 5-field cron expressions, calculates the next scheduled run times, generates a human-readable description, and shows a countdown to the next execution — all in your local timezone and UTC. How to Use Type or paste ...
Try the Tool »Color Contrast Grid Generator Enter your brand or design system colors and generate a complete WCAG contrast matrix showing the contrast ratio for every possible foreground/background combination. Instantly see which color pairs pass AA, AAA, or fail accessibility requirements — essential for building accessible design systems and style guides. How to Use Enter hex colors ...
Try the Tool »Base85 / Ascii85 Encoder & Decoder Encode text to Base85 or decode Base85-encoded data back to its original form. Base85 encoding converts 4 bytes of binary data into 5 printable ASCII characters, offering better space efficiency than Base64 (25% overhead vs 33%). This tool supports three major Base85 variants used across different applications. How to ...
Try the Tool »Credit Card BIN / IIN Lookup Enter the first 6-8 digits of any credit or debit card number to identify the card network, issuing bank, country of issuance, card type, and category. This tool also includes Luhn algorithm validation to check if a full card number has a valid format. Everything runs in your browser ...
Try the Tool »Twitter / X Character Counter Write and count your tweet with Twitter’s exact character counting rules. This tool applies the same algorithm Twitter/X uses — URLs always count as 23 characters regardless of length, and emoji have weighted counts. Real-time feedback shows remaining characters with color-coded warnings, and thread mode splits long content into multiple ...
Try the Tool »Hex Dump Viewer View any text or file as a hex dump in the classic xxd format — offset address, grouped hex bytes, and printable ASCII characters side by side. Upload a binary file or paste text to inspect raw byte values, search for patterns, and configure the display to match your preferred format. How ...
Try the Tool »Time Duration Formatter Convert any duration — entered in seconds, milliseconds, or clock format — into multiple human-readable representations simultaneously. See verbose, short, ISO 8601, clock, and approximate formats side by side, with a full breakdown by time unit. How to Use Select your input mode (Seconds, Milliseconds, or Clock hh:mm:ss), enter your duration value, ...
Try the Tool »JWT Expiry & Lifetime Checker Paste a JSON Web Token to instantly check its expiry status, see a live countdown to expiration, and visualize the token’s lifetime on an interactive timeline. Decode all standard claims (iss, sub, aud, exp, iat, nbf) plus custom claims — all without needing the signing secret. Everything runs in your ...
Try the Tool »URL Canonicalizer & Normalizer Normalize URLs to their canonical form following RFC 3986 standards. This tool applies configurable normalization steps — lowercase scheme and host, remove default ports, sort query parameters, resolve dot segments, and more — with side-by-side comparison and diff highlighting to show exactly what changed. How to Use Enter one or more ...
Try the Tool »Bencode Encoder / Decoder Encode JSON to Bencode format or decode Bencode back to JSON instantly. Bencode is the serialisation format used by BitTorrent for .torrent files and the DHT protocol. Paste Bencode input to decode it into readable JSON, or paste JSON to encode it into compact Bencode — all client-side with no data ...
Try the Tool »ROI Calculator Calculate return on investment instantly. Enter your initial investment and final value to see ROI percentage, annualized returns (CAGR), break-even timeline, and compare up to three investment scenarios side by side. All calculations update in real-time as you type. How to Use Enter your initial investment amount and either the final value or ...
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Scoreboard is a fun way to keep track of your games, all data is stored in your browser. More features are coming soon!
Update: Our latest tool was added on Apr 13, 2026
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