Data & Code
Format, validate and convert structured data.
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Access Log Parser Parse Apache / nginx access logs into structured rows.
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ANSI Log → HTML Render an ANSI-colored terminal log as styled HTML.
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AsciiDoc → Markdown Convert basic AsciiDoc into Markdown.
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ASN.1 OID Lookup Look up well-known ASN.1 / X.509 object identifiers.
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Avro Schema Viewer List fields and their types from an Avro .avsc file.
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BSON Converter Convert between JSON and BSON (binary JSON, MongoDB's wire format).
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CBOR Converter Convert between JSON and CBOR (RFC 8949).
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Confluence → Markdown Convert Atlassian Confluence wiki markup to Markdown.
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CREATE TABLE → Mermaid ER Convert CREATE TABLE statements into a Mermaid erDiagram.
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CSV Column Statistics Per-column distinct count, blanks, min / max / average, most common value.
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CSV Deduplicator Remove duplicate CSV rows while preserving order.
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CSV Header Normaliser Rewrite CSV headers to snake_case, camelCase, PascalCase or kebab-case.
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CSV Joiner SQL-style join two CSV tables on a key column.
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CSV Query Sandbox Run a small SELECT/WHERE/LIMIT query against pasted CSV.
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CSV to JSON Convert CSV (with header row) to a JSON array.
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CSV to Markdown Table Convert any CSV to a GitHub-flavoured Markdown table.
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CSV Transposer Swap rows and columns of a CSV table.
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CSV Type Sniffer Infer the likely .NET type and format hint for each CSV column.
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CSV → HTML Table Convert CSV into a clean <table> with thead/tbody.
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CSV → SQL INSERT Generate INSERT statements from CSV (header row + data).
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DBML Renderer Parse DBML and render a quick ASCII summary of tables and columns.
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Excel Formula Explainer Paste any Excel / Google Sheets formula to see its structure explained.
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Fixed-Width Parser Parse fixed-width columnar text into CSV.
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HAR Viewer Inspect HTTP Archive (HAR) exports from browser DevTools.
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HL7 v2 Message Parser Split a pipe-delimited HL7 v2 message into segments and fields.
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HTML Table Extractor Extract tabular data from pasted HTML tables.
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INI / Config File Parser Parse INI sections and key/value pairs into readable paths.
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Java Properties ↔ JSON Convert .properties files to and from JSON.
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JMESPath Playground Run JMESPath expressions (AWS CLI --query syntax) against JSON.
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JSON Array Sorter / Filter Builder Sort JSON arrays and inspect filter-friendly output.
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JSON Deep Merge Deep-merge two JSON documents.
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JSON Diff Structural diff of two JSON documents.
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JSON Flattener / Unflattener Flatten nested JSON objects into dotted paths.
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JSON Formatter / Beautifier Pretty-print JSON with configurable indentation.
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JSON Minifier Strip whitespace and comments from JSON.
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JSON Patch (RFC 6902) Apply an RFC 6902 JSON Patch to a document.
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JSON Path Tester Evaluate simple JSONPath-style lookups against a JSON document.
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JSON Pointer (RFC 6901) Evaluate an RFC 6901 JSON Pointer against a document.
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JSON Schema Generator Infer a JSON Schema (draft-07) from a sample document.
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JSON Schema Validator Validate a JSON document against a JSON Schema.
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JSON to C# Class Generate C# record / class definitions from a JSON sample.
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JSON to CSV Convert a JSON array of objects into CSV.
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JSON to Go Struct Generate Go struct definitions from a JSON sample.
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JSON to JSDoc Typedef Generate JSDoc @typedef definitions from a JSON sample.
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JSON to Kotlin Data Class Generate Kotlin data class definitions from a JSON sample.
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JSON to Swift Struct Generate Swift Codable struct definitions from a JSON sample.
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JSON to TypeScript Types Generate TypeScript interface definitions from a JSON sample.
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JSON to XML Convert JSON to a clean XML representation.
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JSON to YAML Convert JSON to clean, readable YAML.
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JSON Validator Validate JSON and pinpoint the exact error location.
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JSON5 Decoder Convert JSON5 (with comments, trailing commas, etc.) to strict JSON.
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JSONPath Playground Run JSONPath expressions against any JSON document.
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MessagePack Converter Convert between JSON and MessagePack (hex / base64).
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NDJSON Formatter Format newline-delimited JSON documents.
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Org Mode → Markdown Convert Emacs Org-mode text into Markdown.
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Parquet Schema Viewer Upload a Parquet file to inspect its schema, columns and row count.
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Pivot Table Builder Pivot any CSV by row, column and aggregated value — no spreadsheet needed.
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Protobuf Schema Viewer Inspect Protobuf messages and field declarations.
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RTF → Plain Text Strip RTF control words and groups to recover plain text.
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SQL Formatter Pretty-print SQL queries with consistent indentation.
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SQL to JSON Output Simulator Sketch mock JSON result sets from SQL-like input.
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SQL → MongoDB find() Translate a basic SELECT/WHERE/LIMIT SQL into a MongoDB find() call.
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TOML Formatter / Validator Parse, validate and pretty-print TOML documents.
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TOML ↔ JSON Converter Convert between TOML config and JSON in both directions.
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TSV ↔ CSV Converter Switch between tab-separated and comma-separated tables.
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XML Formatter Pretty-print or minify XML documents.
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XML to JSON Convert XML documents to JSON.
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YAML Formatter / Validator Format and validate YAML documents.
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YAML to JSON Convert YAML to clean, indented JSON.