Deterministic Web Utilities.
Zero Server Upload.
Financial simulations, AST code transforms, and cryptographic generation — all computations run 100% locally in your browser via Web Workers and Web Crypto API without external data uploads.
Calculators
Client-side financial estimation and statutory fee calculators with mathematical transparency.
Generators
Fast, browser-based generators for passwords, UUIDs, passphrases, and cron schedule expressions.
Cryptographic Password Generator — Secure & Client-Side
Generate cryptographically secure passwords and Diceware passphrases locally in your browser using the Web Crypto API (CSPRNG). Zero server storage.
UUID Generator — Online Bulk RFC 4122 v4 & RFC 9562 v7 GUIDs
Generate cryptographically secure UUID/GUID v4 and time-ordered UUID v7 tokens entirely in your browser using Web Crypto CSPRNG. Bulk generate up to 100.
Cron Expression Generator & Schedule Calculator — Visual Builder
Online visual cron schedule builder, parser, and human-readable translator. Generates upcoming run times and validates standard 5-part cron expressions client-side.
Converters
Type-safe transformations, AST schema extraction, and binary encodings executed in browser workers.
JSON to TypeScript Converter — Strict Interface Generator
Convert JSON objects and API payloads into strict, type-safe TypeScript interfaces and types entirely client-side using Web Workers.
Base64 Encode & Decode — UTF-8 & URL-Safe Online Converter
Encode text or files into Base64 and decode Base64 strings back to UTF-8 plain text with zero server upload. Supports URL-Safe RFC 4648 Base64.
CSV to JSON & SQL Converter — RFC 4180 Client-Side Parser
Convert CSV tables to typed JSON arrays or SQL INSERT statements entirely client-side. Supports commas, semicolons, tabs, custom table names, and automatic delimiter detection.
Formatters
Query beautifiers, syntax validators, and structured code formatters with zero server compute.
JSON Formatter & Validator — Pretty Print, Minify & Inspect
Format, validate, beautify, and minify JSON online with instant syntax error detection, line/column markers, and alphabetical key sorting. 100% private and client-side.
SQL Formatter & Beautifier — Multi-Dialect Online Query Formatter
Format, beautify, and indent SQL queries online. Supports PostgreSQL, MySQL, SQLite, MariaDB, BigQuery, and T-SQL with configurable keyword casing and zero server upload.