i ilham.dev

Tools

Small, focused utilities I reach for while building, debugging and running servers. Everything runs in your browser — nothing is uploaded.

Encoding

Base64 Text Encode and decode UTF-8 text to and from Base64, URL-safe optional. Base64 File Turn any file into a Base64 data string, or decode one back to a file. URL Encoder Percent-encode and decode URL components. HTML Entities Escape and unescape HTML special characters. Text to Binary Convert text to its binary representation and back. Text to Unicode Show the Unicode code points of a string, and rebuild a string from them. NATO Alphabet Spell out text using the NATO phonetic alphabet. String Obfuscator Obfuscate part of a string while keeping it readable. SafeLink Decoder Extract the real destination behind an Outlook SafeLink. Basic Auth Header Build an HTTP Basic Authorization header from a user and password.

Formats

JSON Formatter Validate, pretty-print and minify JSON, with optional key sorting. JSON Minifier Strip all whitespace from JSON to shrink it. JSON to YAML Convert JSON documents to YAML. YAML to JSON Convert YAML documents to JSON. YAML to TOML Convert YAML documents to TOML. TOML to YAML Convert TOML documents to YAML. JSON to TOML Convert JSON documents to TOML. TOML to JSON Convert TOML documents to JSON. XML Formatter Pretty-print and minify XML. XML to JSON Convert XML documents to JSON. JSON to XML Convert JSON documents to XML. JSON to CSV Flatten a JSON array of objects into CSV. SQL Prettify Reformat SQL queries so they are readable. Markdown to HTML Render Markdown to HTML in the browser. YAML Viewer Validate and explore a YAML document. List Converter Convert between line lists, CSV, JSON arrays and other list formats.

Crypto

Hash Text Compute MD5, SHA-1, SHA-256 and SHA-512 digests of text. HMAC Generator Compute keyed HMAC signatures with a choice of digest. UUID Generator Generate v4 UUIDs, single or in bulk. ULID Generator Generate sortable ULIDs, single or in bulk. Token Generator Generate random tokens and passwords of a chosen length and charset. bcrypt Hash a password with bcrypt, or verify one against a hash. AES Encryption Encrypt and decrypt text with AES. RSA Key Pair Generate an RSA public and private key pair in the browser. BIP39 Mnemonic Generate a BIP39 mnemonic phrase and derive its seed. Password Strength Estimate how long a password would take to crack. PDF Signature Checker Inspect the digital signatures embedded in a PDF.

Network

IP & Geolocation Lookup Show your public IP (or any address) with its country, city, coordinates and ISP. IPv4 Subnet Calculator Work out the network, broadcast, mask and host range for a CIDR block. IPv4 Address Converter Convert between dotted, decimal, hex and binary IPv4 forms. IPv4 Range Expander Expand an IP range into the CIDR blocks that cover it. IPv6 ULA Generator Generate a random IPv6 unique local address prefix. MAC Address Lookup Look up the vendor behind a MAC address OUI. MAC Address Generator Generate random MAC addresses, with optional prefix. Random Port Generator Pick one or more unused-looking port numbers.

Web

JWT Parser Decode and inspect the header, payload and claims of a JSON Web Token. URL Parser Break a URL into its parts and query parameters. User Agent Parser Read the browser, engine, OS and device from a user-agent string. MIME Types Look up the MIME type for a file extension. HTTP Status Codes Reference list of HTTP response status codes and their meaning. Meta Tag Generator Generate HTML meta tags for a page. Keycode Info Press a key to see its code, key and modifier state. Slugify Turn any text into a clean URL slug. OTP Generator Generate and verify time-based one-time passwords. Device Information Show what the browser reports about the current device. QR Code Generator Generate a QR code from text or a URL. Wi-Fi QR Code Build a QR code that joins a Wi-Fi network. SVG Placeholder Create a placeholder image as an SVG. Camera Recorder Record a short video from the webcam in the browser. HTML Editor A small rich-text editor that exports clean HTML.

Workflow

Crontab Generator Build a cron expression and read it back in plain language. chmod Calculator Convert between octal and symbolic Unix file permissions. Docker Run to Compose Turn a docker run command into a docker-compose service. Git Cheatsheet A quick reference of the Git commands I keep forgetting. Regex Tester Test a regular expression against sample text with live matches. Regex Cheatsheet A quick reference of regular-expression syntax. JSON Diff Compare two JSON documents and highlight the differences. Text Diff Compare two blocks of text line by line. Timestamp Converter Convert between Unix timestamps, ISO strings and local time.

Text

Lorem Ipsum Generate placeholder paragraphs, sentences or words. Text Statistics Count characters, words, sentences, lines and reading time. Emoji Picker Search emoji by name and copy them. Numeronym Turn long words into numeronyms like i18n. ASCII Text Render text as large ASCII-art banners. Case Converter Switch text between camelCase, snake_case, kebab-case and more.

Convert

Number Base Converter Convert integers between binary, octal, decimal and hex. Roman Numerals Convert between Roman numerals and decimal numbers. Temperature Converter Convert between Celsius, Fahrenheit and Kelvin. Color Converter Convert colors between HEX, RGB, HSL and more.

Math

Math Evaluator Evaluate a mathematical expression, with variables and functions. ETA Calculator Estimate a finish time from progress, elapsed time and remaining work. Percentage Calculator Work out percentages, increases and decreases. Chronometer A simple stopwatch with laps. Benchmark Builder Compare a set of measured values and their ratios.

Data

Email Normalizer Normalize email addresses to a canonical form. Phone Parser Parse and format phone numbers by country. IBAN Validator Validate an IBAN and read its country and check digits.