Runs locally

Fast, browser-local tools for real-world payloads.

Format, decode, and convert without uploading your data. PayloadHarbor keeps every tool focused, explainable, and ready to copy or export.

Open JSON FormatterExplore all tools
  • Local processingInputs stay in this browser tab.
  • No accountOpen a tool and start immediately.
  • Clear outcomesActionable errors and copy-ready results.
JSON FormatterLocal browser session
Input
{"service":"harbor","status":"ok","private":true}
Output
{
  "service": "harbor",
  "status": "ok",
  "private": true
}
Valid JSON · nothing sent to a server

Choose a tool

Focused utilities. The same fast, local workflow.

01JSON Formatter & ValidatorFormat, validate, and minify JSON with clear syntax errors.Open tool 02XML ToolkitFormat, validate, and convert XML to JSON locally.Open tool 03Unix Timestamp ConverterConvert seconds, milliseconds, microseconds, and nanoseconds.Open tool 04JWT DecoderInspect JWT headers, payloads, and registered claims locally.Open tool

Your payload has no trip to make.

Each transformation happens inside the browser with standard Web APIs. The site does not include analytics, accounts, or payload storage.

Read the privacy model
  1. 1
    You enter dataInput exists in component memory.
  2. 2
    The browser processes itPure local parsing and conversion.
  3. 3
    You copy or exportYou decide where the result goes.