Formatting Developer Tools
Format, validate, convert, and inspect JSON, XML, CSV, YAML, SQL, timestamps, stack traces, and structured data.
JSON Prettifier
Format and validate JSON data
XML Prettifier
Format and validate XML data
HL7 Parser
Read and parse HL7 v2 messages into structured JSON
HL7 to FHIR Converter
Convert HL7 v2 messages to FHIR R4 Bundles
Diff / Text Compare
Compare two texts and see color-coded differences
Stacktrace Formatter
Format and beautify stack traces from multiple programming languages
Beautify Stack Trace
Clean up and beautify messy error stack traces for readability
Stack Trace Analyzer
Analyze stack traces to identify root causes, explain errors, and separate app from framework code
Base64 Encoder/Decoder
Encode and decode Base64 strings
File Size Converter
Convert file sizes between decimal (SI) and binary (IEC) units
Unix Timestamp Converter
Convert between Unix epoch timestamps and human-readable dates with timezone support
Cron Expression Tester
Test and parse cron expressions, explain them in plain English, and preview upcoming run times across timezones
Cron Expression Generator
Build cron expressions visually with field controls — no syntax knowledge required
URL Encoder / Decoder
Encode and decode URLs using encodeURIComponent and encodeURI
YAML ↔ JSON Converter
Convert between YAML and JSON with auto-detection of input format
CSV ↔ JSON Converter
Convert between CSV and JSON with auto-detection, delimiter handling, type inference, and nested-object flattening
CSV Viewer / Table Explorer
Paste CSV and explore it as a sortable, searchable table with sticky headers — no spreadsheet required
SQL Formatter
Format and prettify SQL queries with support for MySQL, PostgreSQL, SQLite, and more