Data Processing
Format, validate and convert data without uploading it anywhere: JSON, YAML, XML, CSV, Base64, timestamps, SQL and more. Every converter runs client-side in your browser.
39 free tools — no ads, no sign-up, everything runs in your browser.
Base64 Toolbox
Professional Base64 workspace for text, files and images with Base64URL, MIME, Data URI, strict validation, image preview and ready-to-use snippets.
CSV to Chart
Paste or upload CSV data and generate bar, line, pie, or doughnut charts. Export as PNG.
CSV to JSON Converter
Paste CSV data and convert it to pretty-printed JSON instantly — supports custom delimiters, header row toggling, and value trimming.
CSV to Markdown Converter
Convert CSV to a Markdown table and Markdown tables back to CSV
CSV to SQL Converter
Generate SQL INSERT statements from CSV data
cURL to Code Converter
Convert cURL commands to code snippets in multiple languages. Parse cURL and generate JavaScript, Python, PHP, and more.
Diff Checker
Compare two text blocks and highlight differences side-by-side
GraphQL Formatter & Validator
Format, validate and beautify GraphQL queries with syntax highlighting
HTML Encoder/Decoder
Encode and decode HTML entities. Convert special characters to HTML entities and back. Perfect for displaying code safely in HTML.
HTML to Markdown Converter
Paste HTML and get clean Markdown. Configurable heading style, bullet marker, and code block style — all processed locally in your browser.
HTML to Text Converter
Convert HTML to plain text by removing all HTML tags and entities. Extract readable text from HTML documents.
JSON ⇄ YAML Converter
Bidirectional JSON/YAML conversion with advanced formatting options, auto-detection, file upload, and comprehensive statistics
JSON Formatter
Advanced JSON formatter with validation, analysis, search, multiple format modes, file upload, and comprehensive statistics.
JSON Lines Converter
Convert JSON Lines (NDJSON) to a JSON array and back
JSON Schema Validator
Validate a JSON document against a JSON Schema
JSON to CSV Converter
Professional JSON to CSV conversion with nested object flattening, multiple delimiters, file upload, and comprehensive statistics
JSON5 Validator
Validate and format JSON5 (comments, trailing commas, unquoted keys, single quotes)
JSONPath Evaluator
Paste JSON and a JSONPath expression to instantly see all matched values. Supports filters, wildcards, recursive descent, and array slices.
Markdown to HTML Converter
Convert Markdown to clean HTML with GitHub-Flavored Markdown, syntax highlighting, and optional sanitization
Number Base Converter
Convert numbers between different bases: Binary, Octal, Decimal, and Hexadecimal
Open Graph Debugger
Inspect og: meta tags from pasted HTML to debug link previews on Facebook, LinkedIn and more
Regex Tester
Test JavaScript regular expressions with live match highlighting, capture groups, named groups, flag toggles, substitution/replace preview, and shareable links
SOAP Formatter
Beautify SOAP XML request and response envelopes with indentation
SQL Builder
Build SQL SELECT queries by dragging clause blocks — learn how each clause works and copy ready-to-run SQL for 11 dialects.
SQL Compare
Compare two SQL queries and highlight the differences side by side — normalizes formatting first so only real changes show.
SQL Formatter
Format, beautify and minify SQL for 11 dialects, or compare two queries side by side — a two-in-one SQL toolkit.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin
Time Zone Converter
Convert time between different time zones worldwide with automatic DST handling
Timestamp Converter
Convert between Unix timestamps and human-readable dates with timezone support, multiple formats, and comprehensive date analysis
TOML to JSON Converter
Convert TOML to JSON and JSON to TOML in either direction
TOML Validator
Validate TOML and re-emit it as clean, indented JSON
Twitter Card Validator
Inspect twitter: meta tags from pasted HTML to debug Twitter/X link cards
URL Encoder/Decoder
Encode and decode URLs with multiple modes, auto-detection, file upload, and comprehensive analysis
Visual SQL Query Builder
Build a SELECT statement visually — table, columns, WHERE conditions, GROUP BY, ORDER BY, and LIMIT — and copy the generated SQL
WSDL Formatter
Beautify WSDL XML service descriptions with indentation
XML Formatter & Validator
Format, validate, and analyze XML documents with comprehensive options, element/attribute counting, and detailed validation
XML to JSON Converter
Convert XML data to JSON format with attribute handling, configurable parsing options, and live statistics
YAML to TOML Converter
Convert YAML configuration to TOML format with proper syntax and validation
YAML Validator
Validate and lint YAML in your browser. Catch syntax errors with line numbers and preview the parsed JSON output. Nothing leaves your device.