Format, minify and validate JSON without uploading the payload.
Convert configuration documents between JSON and YAML.
Explore nested JSON with a readable tree structure.
Encode and decode UTF-8 text as Base64.
Encode and decode URL components and query values.
Convert readable text and Unicode escape sequences.
Inspect UTF-8 bytes or restore text from UTF-8 hex.
Decode JWT claims and inspect common time-based fields.
Convert Unix timestamps and calendar dates in either direction.
Generate SHA family digests from text.
Generate HMAC signatures from a message and shared secret.
Generate and compare MD5 checksums for text or files.
Inspect the components and query parameters of an absolute URL.
Look up the standard meaning of an HTTP response status.
Generate random UUID v4 values or time-sortable ULIDs.
Turn common cURL requests into JavaScript Fetch or Axios code.
Extract nested JSON values with JSONPath expressions.
Test regular-expression matches, flags and capture groups.
Compare two text blocks and highlight line-level differences.
Measure the size and readability of mixed-language text.
Test HTTP APIs directly from the browser.
Check pasted CORS response headers for common preflight and credentialed-request errors.
Turn raw HTTP headers into structured JSON without losing repeated fields.
Create correctly encoded query parameters from structured values.
Create an Authorization header for HTTP Basic authentication.
Look up file extensions and common MIME types.
Convert HTML form request bodies between encoded text and JSON.
Analyze User-Agent strings and generate testing values.
Validate a JSON instance against a JSON Schema.
Infer a JSON Schema contract from example JSON.
Merge layered JSON configuration safely in the browser.
Repair common JSON formatting problems before validation.
Sort object keys recursively for stable JSON output.
Escape text as a JSON string value or restore escaped content.
Map JSON object structures to XML elements and back.
Move tabular data between CSV and JSON object arrays.
Format JSON5 and convert it into API-ready standard JSON.
Browse API paths and methods from OpenAPI or Swagger documents.
Test XPath expressions against an XML document.
Format SQL across common database dialects.
Normalize Dockerfile text and catch common build-file structure errors.
Inspect Kubernetes resources and catch missing manifest fields.
Format or validate YAML documents with clear indentation and syntax diagnostics.
Format and validate TOML configuration documents.
Format INI sections and convert them to structured JSON.
Move configuration between Java Properties and JSON.
Clean up GraphQL documents and check basic structural syntax.
Format, minify and structurally validate XML documents.
Generate high-entropy passwords with Web Crypto.
Generate common server password hash formats for development and configuration.
Compress and restore text data with gzip.
Generate CRC16 and CRC32 text checksums.
Create Keccak-256 hashes from text.
Encrypt or decrypt text with password-derived AES-256-GCM.
Create HMAC-signed JWTs from JSON claims.
Generate RSA-OAEP key pairs and export PEM text.
Translate readable text and international Morse code.
Convert UTF-8 text to hexadecimal and back.
Encode or decode HTML character entities.
Convert text to legacy %uXXXX escape notation.
Encode and decode text with the standard Base32 alphabet.
Encode and decode text with the Bitcoin Base58 alphabet.
Convert names and phrases between common programming case styles.
Edit Markdown and preview common GFM formatting.
Batch replace text with safe literal and regular-expression modes.
Turn readable titles into stable URL slug segments.
Deduplicate text lines without reordering the remaining content.
Reorder text lines by alphabetic, numeric or length criteria.
Add or remove line numbers from multiline text.
Explain standard and second-level cron schedules and preview upcoming runs.
Calculate IPv4 subnet boundaries and usable host counts.
Generate TypeScript declarations from a JSON sample.
Convert a JSON sample into a reviewable Java data model.
Convert a JSON sample into a reviewable Python data model.
Generate Go struct declarations from a JSON sample.
Convert a JSON sample into a reviewable Kotlin data model.
Convert a JSON sample into a reviewable C# data model.
Convert a JSON sample into a reviewable Rust data model.
Convert a JSON sample into a reviewable Swift data model.
Convert a JSON sample into a reviewable C++ data model.
Generate MySQL or PostgreSQL INSERT statements from JSON.
Convert a JSON sample into a reviewable JavaScript data model.
Convert a JSON sample into a reviewable PHP data model.
Convert a JSON sample into a reviewable Scala data model.
Convert a JSON sample into a reviewable GraphQL data model.
Convert a JSON sample into a reviewable TOON data model.
Convert a JSON sample into a reviewable Flow data model.
Convert a JSON sample into a reviewable Elm data model.
Convert a JSON sample into a reviewable Objective-C data model.
Convert a JSON sample into a reviewable Crystal data model.
Convert a JSON sample into a reviewable Haskell data model.
Convert a JSON sample into a reviewable Ruby data model.
Convert a JSON sample into a reviewable Pike data model.
Move tabular data between JSON and native Excel workbooks.
Move API request definitions between JSON and Postman.
Turn INSERT rows into JSON without a database connection.
Generate Java or C# entity scaffolds from SQL tables.