Convert your data formats, right in your browser
Free, privacy-first tools to convert and generate data formats — everything runs locally, nothing is uploaded.
Data format converters
- JSON to YAML Converter — Free Online Tool Convert JSON to clean YAML instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- YAML to JSON Converter — Free Online Tool Convert YAML to clean, indented JSON instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to CSV Converter — Free Online Tool Convert a JSON array to CSV instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- CSV to JSON Converter — Free Online Tool Convert CSV to JSON instantly in your browser. Free, private and offline-friendly: your spreadsheet data never leaves your device.
- JSON to XML Converter — Free Online Tool Convert JSON to indented XML instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- XML to JSON Converter — Free Online Tool Convert XML to JSON instantly in your browser. Free, private and offline-friendly: your documents never leave your device.
JSON to code generators
- JSON to TypeScript Converter — Free Online Tool Convert JSON to TypeScript interfaces instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to Python (Pydantic) Converter — Free Tool Generate Pydantic models from JSON instantly in your browser. Free and private: your data never leaves your device.
- JSON to Go Struct Converter — Free Online Tool Generate Go structs from JSON instantly in your browser. Free and private: your data never leaves your device.
- JSON to Rust Struct Converter — Serde, Free Tool Generate Rust serde structs from JSON instantly in your browser. Free and private: your data never leaves your device.
- JSON to Java Record Converter — Free Online Tool Convert JSON to Java records (Java 16+) instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to C# Class Converter — Free Online Tool Convert JSON to C# records or classes with System.Text.Json attributes, instantly in your browser. Free, private: your data never leaves your device.
JSON to database schemas
- JSON to MySQL CREATE TABLE Converter — Free Online Tool Generate a MySQL CREATE TABLE statement from sample JSON in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to PostgreSQL CREATE TABLE — Free Online Tool Generate a PostgreSQL CREATE TABLE statement from sample JSON in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to Mongoose Schema Converter — Free Online Tool Generate Mongoose schemas from sample JSON instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to Prisma Schema Model — Free Online Tool Generate a Prisma schema model from sample JSON instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- JSON to BigQuery Schema Converter — Free Online Tool Generate a BigQuery table schema from sample JSON instantly in your browser. Free and private: your data never leaves your device.
- JSON to Protobuf (proto3) Converter — Free Online Tool Convert JSON to proto3 message definitions instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
Formatters, validators & diff
- JSON Formatter & Beautifier — Free Online Tool Format, beautify or minify JSON instantly in your browser, with 2 or 4 spaces and key sorting. Free and private: your data never leaves your device.
- JSON Minifier — Free Online Developer Tool Minify JSON online: strip whitespace and line breaks to shrink it down to a single compact line. Free, private and 100% in your browser.
- JSON Sorter — Free Online Developer Tool Sort JSON object keys alphabetically and recursively, then pretty-print the clean, diff-friendly result. Free, private and 100% in your browser.
- JSON Validator — Check JSON Syntax Online for Free Validate JSON syntax instantly in your browser, with line and column on errors. Free, private and offline-friendly: your data never leaves your device.
- YAML Formatter & Beautifier — Free Online Tool Reformat YAML with consistent indentation and optional key sorting, in your browser. Free, private, offline-friendly: your data never leaves your device.
- YAML Validator — Check YAML Syntax Online for Free Validate YAML syntax instantly in your browser with precise error positions. Free, private and offline-friendly: your data never leaves your device.
Encoding & decoding
- Text to Base64 Encoder — Free Online Tool Encode text to Base64 instantly in your browser. Free, private and offline-friendly: nothing is uploaded and your data stays on your device.
- Base64 to Text Decoder — Free Online Tool Decode Base64 to plain text instantly in your browser. Free, private and offline-friendly: nothing is uploaded, your data stays local.
- Text to URL-encoded Converter — Free Online Tool URL-encode text with encodeURIComponent instantly in your browser. Free, private and offline-friendly: your data never leaves your device.
- URL-encoded to Text Decoder — Free Online Tool Decode URL-encoded text with decodeURIComponent in your browser. Free, private and offline-friendly: your data never leaves your device.
- Text to Hex Converter — Encode Strings as Hexadecimal Convert any text to space-separated hexadecimal bytes (UTF-8) instantly in your browser. Free and private: your data never leaves your device.
- Hex to Text Converter — Decode Hexadecimal Online Decode hexadecimal bytes back to readable text (UTF-8) instantly in your browser. Free, private and offline-friendly: nothing leaves your device.
Developer utilities
- UUID v4 Generator — Free Online Tool, No Tracking Generate one or many random UUID v4 identifiers in your browser, using the cryptographic Web Crypto API. Free, private, nothing leaves your device.
- SHA-256 Hash Generator — Free Online Hashing Tool Compute SHA-256, SHA-1 or SHA-512 hashes of any text in your browser with Web Crypto. Free and private: your data never leaves your device.
- Unix Timestamp to Date Converter — Free Online Tool Convert Unix timestamps (seconds or milliseconds) to ISO 8601, UTC and local dates in your browser. Free, private, no tracking, nothing uploaded.
- Date to Unix Timestamp Converter — Free Online Tool Convert an ISO 8601 or human-readable date to Unix seconds and milliseconds, in your browser. Free, private, no tracking, nothing uploaded.
- Case Converter — camelCase, snake_case, kebab-case Convert identifiers between camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE, one per line. Free and private, in your browser.