Data & API
Data conversion, API tools, and JSON/XML utilities
Showing all 32 tools
Sql Optimizer
Optimize SQL queries for performance
Csv Schema Validator
Validate CSV files against schemas
Csv Operations
Manipulate and process CSV data
SQL Formatter
Format and beautify SQL queries with syntax highlighting and indentation
Excel Formula Generator
Generate Excel formulas and functions
Sql Injection Tester
Test for SQL injection vulnerabilities
XML Minifier
Minify and format XML files. Switch between minification and formatting modes with customizable options
YAML Minifier
Minify and format YAML files. Switch between minification and formatting modes with customizable indentation
Graphql Query Generator
Generate GraphQL query and mutations
Xml Validator
Validate XML syntax and structure
Mongodb Query Builder
Build MongoDB queries with interface
Xml Transform
Transform XML data with rules
XML CSV Converter
Convert XML to CSV and CSV to XML with customizable delimiters and formatting
JSON YAML Converter
Convert JSON to YAML and YAML to JSON with customizable formatting options
CSV TSV Converter
Convert CSV to TSV and TSV to CSV with customizable options
YAML CSV Converter
Convert YAML to CSV and CSV to YAML with configurable structure options
GPT Token Counter
Count OpenAI tokens and estimate API cost for GPT-5, GPT-4o, o3 and more
cURL to JavaScript Fetch Converter
Convert cURL commands to JavaScript fetch() code. Paste from DevTools or Postman.
Markdown JSON Converter
Convert Markdown to JSON and JSON to Markdown with structured content
XML YAML Converter
Convert XML to YAML and YAML to XML with customizable structure options
Yaml Converter
Convert YAML to other formats
JSON Path Tester
Input JSON and a JSONPath expression; show matches with path and value.
RSS/Atom Feed Validator
Paste feed URL or XML; validate and show errors for RSS and Atom feeds.
CSV to SQL Converter
Generate SQL INSERT statements from CSV in the browser; nothing stored on servers
Excel to SQL Converter
Convert XLSX/XLS sheets to SQL INSERT statements locally in the browser
GZ to SQL Converter
Decompress .sql.gz or CSV.gz in-browser; nothing stored on our servers
SQLite Viewer
Open small SQLite .db files with sql.js and run queries in your browser
ZIP Text Extractor
Browse a ZIP in the browser and preview UTF-8 text files (.sql, code, etc.)
NDJSON to SQL Converter
Turn JSON Lines (one object per line) into SQL INSERT batches locally
Gzip Text Tool
Compress text to .gz or decompress gzip to UTF-8 text—fully client-side
Stream Decompressor
Decompress gzip or deflate streams to UTF-8 text in the browser
MessagePack to JSON
Decode MessagePack binary files to formatted JSON in the browser