Local Payload Console
Fast, browser-local tools for real-world payloads.
Format, decode, compare, and convert without uploading your data. PayloadHarbor keeps every tool focused, explainable, and ready to copy or export.
- Local processingInputs stay in this browser tab.
- No accountOpen a tool and start immediately.
- Clear outcomesActionable errors and copy-ready results.
Input
{"service":"harbor","status":"ok","private":true}Output
{
"service": "harbor",
"status": "ok",
"private": true
}Valid JSON · nothing sent to a server
Choose a tool
Search the workbench or filter by payload task.
33 tools ready in this browser session
Format and inspect
Clean, validate, compare, and normalize structured payloads.
JSON Formatter & ValidatorFormat, validate, and minify JSON with clear syntax errors.JSON Schema Validator & GeneratorValidate JSON against Draft 2020-12 and infer a starting schema locally.JSONPath TesterRun safe JSONPath queries against JSON and inspect matched paths.JSON Compare / DiffCompare two JSON payloads and inspect path-level changes locally.JSON Key Sorter & AlphabetizerSort and alphabetize JSON keys recursively for deterministic diffs.JSON Flatten / UnflattenFlatten nested JSON into path keys or rebuild nested objects safely.JSON5 Formatter & ValidatorFormat JSON5 configs with comments, trailing commas, and single quotes.YAML Formatter & ValidatorValidate and format YAML configs without uploading files.XML ToolkitFormat, validate, and convert XML to JSON locally.XML MinifierCompact XML payloads locally with parser-error feedback.HTML Formatter & MinifierFormat or compact HTML snippets with balanced-tag checks.
Convert formats
Move payloads between JSON, YAML, XML, and CSV.
JSON to TypeScript Interface GeneratorInfer TypeScript interfaces from JSON payload samples locally.NDJSON ConverterConvert NDJSON streams to JSON arrays and back with line errors.YAML to JSON ConverterConvert YAML configs into formatted JSON locally.JSON to YAML ConverterConvert JSON objects and arrays into YAML locally.YAML to XML ConverterConvert one-root YAML mappings into formatted XML locally.XML to YAML ConverterConvert XML attributes and repeated tags into YAML locally.JSON to XML ConverterConvert one-root JSON objects into formatted XML locally.CSV to JSON ConverterConvert CSV header rows into JSON object arrays locally.JSON to CSV ConverterConvert JSON objects into CSV with escaped cells.CSV to YAML ConverterConvert header-row CSV into YAML sequences locally.
Encode and parse
Prepare text for transport and inspect URL structure.
Escape / Unescape TextEscape and unescape HTML, XML, JSON, CSV, and JavaScript text.XML Unescape Tool & Entity DecoderDecode escaped XML entities into readable tags and text locally.URL Encoder DecoderEncode or decode URL text and percent escapes in the browser.URL Formatter, Parser & Query InspectorNormalize URLs and inspect hosts, paths, query parameters, and fragments locally.cURL to Code ConverterConvert cURL commands into JavaScript fetch and Python requests snippets.HTML Escape UnescapeEscape or unescape HTML entities for snippets and payload examples.
Developer utilities
Generate identifiers, verify signatures, inspect time, tokens, and diagrams.
UUID Generator & ValidatorGenerate UUID v4/v7 values and verify pasted UUID format.HMAC + Hash GeneratorGenerate SHA hashes and verify HMAC webhook signatures locally.Unix Timestamp ConverterConvert seconds, milliseconds, microseconds, and nanoseconds.Cron Expression Parser & GeneratorExplain five-field cron schedules and generate common expressions locally.JWT DecoderInspect JWT headers, payloads, and registered claims locally.Mermaid Diagram EditorWrite Mermaid diagrams as code with live SVG/PNG export.
Your payload has no trip to make.
Each transformation happens inside the browser with standard Web APIs. The site does not include accounts or payload storage; hosting telemetry is limited to infrastructure delivery and security.
Read the privacy model- 1You enter dataInput exists in component memory.
- 2The browser processes itPure local parsing and conversion.
- 3You copy or exportYou decide where the result goes.