Free browser-based utilities that streamline coding tasks with instant text processing, data conversion, and validation capabilities.
ChaCha20 Key Generator Generate cryptographically secure ChaCha20 keys for use in stream cipher encryption. Produce 256-bit keys in hex or Base64 format, with optional initial counter values, in bulk batches of up to 10 keys at once. All generation uses the browser’s built-in crypto.getRandomValues() API for true randomness. How to Use Select your preferred output ...
Try the Tool »Number to Words Converter Convert any number into its written word form instantly. Enter a number — from simple integers to decimals and negatives — and get clean, grammatically correct text in English, French, Spanish, or German. Supports cardinal, ordinal, and currency formats. How to Use Type or paste a number into the input field. ...
Try the Tool »Punycode Encoder / Decoder Convert internationalized domain names (IDN) between Unicode and Punycode instantly. Enter a domain with non-ASCII characters like münchen.de and get the ASCII-compatible encoding xn--mnchen-3ya.de, or decode Punycode back to its readable Unicode form. Uses the RFC 3492 Bootstring algorithm for guaranteed-accurate results. How to Use Enter a domain name in the ...
Try the Tool »API Signature Generator Generate HMAC-based API request signatures for webhook verification, API authentication, and request signing. Supports HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512 with secret keys in plain text or hexadecimal format, outputting both hex and Base64 signatures for immediate use in HTTP headers or query parameters. How to Use Enter the message or data to sign ...
Try the Tool »PHP Code Formatter & Beautifier Format and beautify your PHP code instantly using industry-standard style presets. Paste messy or inconsistently formatted PHP and get clean output that matches PSR-12, Laravel, or WordPress Coding Standards — with full control over indentation, brace placement, and line length. How to Use Paste your PHP code into the input ...
Try the Tool »SCSS / Sass Formatter & Beautifier Format and beautify your SCSS code instantly. Paste messy or compressed stylesheets and get clean, properly indented output with correct nesting, consistent spacing, and organized at-rules. Supports expanded, compact, and minified output modes. How to Use Paste your SCSS code into the input area. Choose your preferred indent size, ...
Try the Tool »TOTP / HOTP Secret Generator Generate cryptographically secure TOTP and HOTP secrets for two-factor authentication apps like Google Authenticator and Authy. The generator creates Base32-encoded secrets, produces a scannable QR code via the otpauth:// URI standard, and shows a live TOTP preview so you can verify the secret works before deploying it. How to Use ...
Try the Tool »C / C++ Code Formatter Format your C and C++ code instantly using industry-standard style presets. Paste messy or inconsistently formatted code and get clean, properly structured output that matches LLVM, Google, Chromium, Mozilla, WebKit, or Microsoft style guidelines — with full control over indentation, brace wrapping, and pointer alignment. How to Use Paste your ...
Try the Tool »Java Code Formatter & Beautifier Format and beautify your Java code instantly with industry-standard style presets. Paste messy or inconsistently formatted Java code and get clean, properly structured output that matches Google Java Style or Oracle Code Conventions — with full control over indentation, brace placement, and import sorting. How to Use Paste your Java ...
Try the Tool »Network Latency Calculator Paste raw ping output from Linux, macOS, or Windows and instantly get a full statistical breakdown of your network latency. The Network Latency Calculator computes mean, median, min, max, range, and standard deviation, plus jitter and packet loss percentage — giving you a complete picture of your connection quality. How to Use ...
Try the Tool »JSON Schema Validator & Formatter Validate your JSON data against a JSON Schema with precise, detailed error reporting. Paste your data and schema, select the draft version, and get instant feedback — including exact JSON Pointer paths to every validation error. All processing runs client-side, so your data never leaves your browser. How to Use ...
Try the Tool »Shell Script Formatter Format and beautify your Bash, sh, and zsh scripts instantly. Paste messy or inconsistently indented shell code and get clean, properly structured output with correct indentation for all block structures — if/then/fi, for/do/done, while loops, case statements, and function bodies. How to Use Paste your shell script into the input area. The ...
Try the Tool ».gitignore Generator Generate comprehensive .gitignore files by selecting from 30+ curated presets covering popular languages, frameworks, IDEs, operating systems, and DevOps tools. Merge multiple templates into a single, deduplicated file ready for your project. How to Use 1. Browse or search the preset grid to find your languages, frameworks, and tools.2. Click presets to select ...
Try the Tool »Modulo Calculator Calculate the remainder of a division operation instantly. The Modulo Calculator supports six operations — simple mod, modular addition, subtraction, multiplication, exponentiation, and congruence checking — with full BigInt support for arbitrarily large numbers and both truncated and Euclidean negative number handling. How to Use Select an operation from the dropdown, enter your ...
Try the Tool »CSS Grid Generator Build CSS Grid layouts visually. Click cells to define named areas, adjust column and row sizes, and get production-ready CSS code instantly. No memorizing grid syntax — just click and build. How to Use Set the number of columns and rows, then click on grid cells to assign named areas (like header, ...
Try the Tool »JSON to TypeScript Interface Generator Instantly convert any JSON object or array into clean, ready-to-use TypeScript interfaces. Paste your JSON, configure your preferred export style, and get properly typed definitions with nested interfaces, optional fields, and union types — all generated client-side in real time. How to Use Paste your JSON data into the input ...
Try the Tool »cURL Command Builder Build complete, ready-to-run cURL commands using a visual form instead of remembering flag syntax. Select your HTTP method, add headers, configure authentication, set a request body, and get a properly formatted curl command that you can copy and paste directly into your terminal. How to Use Enter your target URL and select ...
Try the Tool »JSONPath Expression Tester Test and debug JSONPath expressions against your JSON data in real-time. Paste your JSON, write an expression, and instantly see matched results with syntax highlighting and a navigable tree view. How to Use Paste your JSON data in the input panel and type a JSONPath expression. Results update in real-time as you ...
Try the Tool »Pixel / REM / EM Converter Instantly convert between CSS units: pixels (px), root em (rem), and em. Adjust the base font size and watch all values update in real time. Perfect for front-end developers translating design specs into CSS. How to Use Enter a value in any of the three unit fields — px, ...
Try the Tool »Luhn Algorithm Validator Validate any number against the Luhn checksum algorithm instantly. Used worldwide to verify credit card numbers, IMEI codes, and other identifiers, this tool gives you guaranteed-correct results with a full step-by-step breakdown. How to Use Enter or paste a number into the input field. The tool validates it in real time as ...
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Update: Our latest tool was added on Apr 19, 2026
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