CodingFormatter

Formatters

JSON Formatter XML Formatter HTML Formatter SQL Formatter HTML Beautifier View all →

Validators

YAML Validator JavaScript Validator Regex Tester JSON Path Evaluator XPath Evaluator HTML Validator Redirection Checker Link Checker JSONPath Finder Diff Checker View all →

Converters

CSV to JSON JSON to YAML YAML to JSON JSON to Protobuf JSON to Java JSON to XML JSON to PHP JSON to C# XML to XSD XML to YAML XML to JSON SQL to MongoDB INI to JSON INI to XML INI to YAML CSV to XML CSV to YAML CSV to SQL Image to Data URI Data URI to Image RGB to Hex Hex to RGB Epoch Converter IDN Converter View all →

Encoders & Utilities

Base64 Encoder Base64 Decoder JWT Decoder HAR Sanitizer HTML Encoder / Decoder JavaScript String Escaper / Unescaper XML String Escaper / Unescaper SVG Viewer View all →

AI & LLM Tools

LLM Token Counter Context Window Calculator Prompt Diff Checker LLM JSON Schema Validator Function Calling Schema Generator Prompt Template Linter Embedding Cosine Similarity Calculator Prompt Minifier View all →

Converters

Move data between formats without leaving the browser—CSV↔JSON/YAML/XML/SQL, JSON↔YAML/XML and codegen (Java, C#, PHP, Protobuf), XML↔JSON/YAML/XSD, INI conversions, color and image data-URI tools, IDN/Punycode, and a full Epoch Converter with live clock and timezones. Ideal for config migrations, log analysis, and spreadsheet-to-API workflows.

Convert CSV or TSV into a JSON array of objects.

Convert JSON objects to clean YAML.

Convert YAML documents to pretty-printed JSON.

JSON to Protobuf

Generate a draft .proto schema from sample JSON.

Generate Java POJO classes from JSON.

Convert JSON objects to XML markup.

Convert JSON to PHP array syntax.

Generate C# classes from JSON.

Generate a draft XSD schema from sample XML.

Convert XML documents to YAML.

Convert XML to JSON with attribute prefixes.

Convert basic SELECT queries to MongoDB find().

Convert INI config files to JSON.

Convert INI files to XML markup.

Convert INI files to YAML.

Convert CSV rows to XML elements.

Convert CSV to a YAML list of records.

Generate SQL INSERT statements from CSV.

Image to Data URI

Convert images to Base64 data URIs in your browser.

Data URI to Image

Preview and inspect image data URIs.

Convert RGB, RGBA, or HSL colors to hex with a live swatch.

Convert hex colors to RGB/RGBA with a live swatch.

Epoch Converter

Convert Unix timestamps to dates and back with timezones and a live clock.

Convert internationalized domain names between Unicode and Punycode.

Frequently Asked Questions

Are conversions lossless?

For common scalar types, yes. YAML features like anchors are resolved into concrete JSON values.

Why client-side converters?

Datasets often contain PII. Keeping conversion local reduces accidental leakage.

What about timezones on the Epoch Converter?

Every result shows UTC and a labeled local or selected IANA timezone so you never misread a bare date string.