Home / Data & Encoding / JWT Token Decoder & Inspector

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Data & Encoding

Data & Developer Converters

Fast, secure developer format converters. Transform JSON to CSV, YAML, Base64 data URIs, URL encodings, JWT bearer tokens, and Unix epoch timestamps with instant syntax validation.

JWT Token Decoder & Inspector

Decode JSON Web Tokens (Header, Payload, Claims, and Expiration status) 100% client-side with zero server exposure.

100% In-Browser & Private — Files never leave your device

Upload Images

Drag and drop images here, browse, or press Ctrl+V

Supports PNG, JPG, WebP, AVIF, SVG, BMP, and GIF • Batch processing ready

Convert To:

Quality:85%

Max Dimension:

Converted Images (0)

No images uploaded yet. Drag files into the box to begin.

100% In-Browser & Private — Files never leave your device

Upload Photo to Inspect & Scrub

Drop photo here, click to browse, or press Ctrl+V

Inspects EXIF, Camera Serial, Adobe XMP, and GPS Coordinates

Metadata Inspection (Before & After)

Upload or paste an image to inspect its embedded EXIF, Camera, and GPS metadata.

100% In-Browser & Private — Files never leave your device

Upload Source Image

Click or drag PNG, SVG, or JPG image to generate Favicon

High-resolution square images (512x512 or SVG) produce the best results

Include Resolutions in .ICO:

16x16 (Browser Tab)32x32 (Retina Tab / Taskbar)48x48 (Desktop Shortcut)64x64 (Application Icon)128x128 (Windows Store)256x256 (High-Res Windows)

Generated Icon Preview & Download

Upload an image to preview favicon resolutions.

100% In-Browser & Private — Files never leave your device

SVG Input & Source

Drop SVG file here, or click to upload

Or Edit / Paste Raw SVG Code:

Resolution Scale:

Target Format:

Background:

SVG Live Preview & Export

100% In-Browser & Private — Files never leave your device

Interactive Color Spectrum & Adjuster

Hue Spectrum160°

RGB Component Adjusters

Red:16

Green:185

Blue:129

HSL (Hue, Saturation, Lightness)

Hue:160°

Saturation:84%

Lightness:39%

Extract Palette from ImageAuto 6-Color Sampler

Drag and drop an image here, browse, or press Ctrl+V

Supports PNG, JPG, WebP, AVIF, SVG & Logos • Extracts 6 dominant colors locally

Converted Formats

HEX#10B981

RGBrgb(16, 185, 129)

HSLhsl(160, 84%, 39%)

HSVhsv(160, 91%, 73%)

CMYKcmyk(91%, 0%, 30%, 27%)

CSS Variable--color: #10b981;

WCAG Accessibility Contrast

On White (#FFF)2.54 : 1

AA FailAAA Fail

On Black (#000)8.28 : 1

AA PassAAA Pass

Harmonic Palettes

Complementary (Opposite 180°)

Triadic (120° Spacing)

Monochromatic Tints & Shades

100% In-Browser & Private — Files never leave your device

Add PDF Files

Click or drag PDF files here to reorder & merge

Files are processed 100% in your browser. Zero server uploads.

PDF Queue (0)

Add at least two PDF files to merge into a single document.

100% In-Browser & Private — Files never leave your device

Upload PDF to Split or Rotate

Click or drop a PDF file here

Extract page ranges, rotate pages, or burst into individual PDF files

PDF Pages (0 of 0 selected)

Upload a PDF document to view, select, rotate, and extract individual pages.

100% In-Browser & Private — Files never leave your device

Add Images for PDF

Click or drag JPG, PNG, or WebP images here

Each image will be placed on its own organized PDF page

Page Dimension:

Page Margins:

Image Pages (0)

Add images to create a multi-page PDF document.

100% In-Browser & Private — Files never leave your device

Markdown to HTML

Input Markdown

HTML Output

Markdown to HTML Converter

Welcome to conversion.zone! Convert your Markdown documents to clean, responsive HTML directly in your browser.

Features

100% In-Browser: Zero server uploads, completely private.
Bi-directional: Convert Markdown to HTML or HTML to Markdown.
Live Preview: See your rendered HTML instantly.

Formatted Elements

Here is a blockquote:

Markdown is a lightweight markup language that makes web formatting simple.

Inline code and code blocks:

const greet = (name) => {
  return Hello, ${name}!;
};

Links: Visit conversion.zone

100% In-Browser & Private — Files never leave your device

JSON to CSV

Input JSON

Output CSV

id,name,email,role
"1","Alice Smith","alice@example.com","Engineer"
"2","Bob Jones","bob@example.com","Designer"
"3","Carol White","carol@example.com","Manager"

Send To:

100% In-Browser & Private — Files never leave your device

JSON to YAML

Input JSON

Output YAML

apiVersion: v1
kind: ConfigMap
metadata:
  name: web-config
  namespace: production
data:
  site_name: conversion.zone
  environment: production
  features:
    - client-side
    - zero-upload
    - privacy-first
  max_upload_mb: 250

Send To:

100% In-Browser & Private — Files never leave your device

Raw Text or File Input

Or click / drop any file to convert to Base64 Data URI

Converted Output

SGVsbG8gZnJvbSBjb252ZXJzaW9uLnpvbmUhIDEwMCUgaW4tYnJvd3Nlci4=

100% In-Browser & Private — Files never leave your device

Input URL / URI String

Percent-Encoded URL

https%3A%2F%2Fconversion.zone%2Fsearch%3Fcategory%3Dimages%26tool%3Dimage-converter%26quality%3D90%26tags%3Dfree%252Cfast%252Cprivate%23preview

100% In-Browser & Private — Files never leave your device

Encoded JWT Bearer Token

Token StatusValid (Unexpired)

Issued At (iat):Oct 24, 2025, 12:00:00 AM UTC

Expires At (exp):Apr 1, 2030, 8:53:20 AM UTC

Decoded JOSE Header (Algorithm & Type)

{
  "alg": "HS256",
  "typ": "JWT"
}

Decoded JWT Payload (Claims & Data)

{
  "sub": "user_9b3d10",
  "name": "Alice Smith",
  "role": "admin",
  "iss": "conversion.zone",
  "iat": 1761264000,
  "exp": 1901264000
}

Signature Segment: signature_verification_sample_only

100% In-Browser & Private — Files never leave your device

Current Unix Epoch:1793540018

Convert Timestamp or Date

Unix Timestamp (s, ms, or ns):Detected: Seconds (s)

Or Convert Date / ISO-8601 String to Epoch:

Quick Offset Presets:

Converted Date & Epoch Formats

ISO-8601 (UTC)2026-11-01T13:33:38.000Z

UTC / GMT StringSun, 01 Nov 2026 13:33:38 GMT

Local Browser TimeSunday, November 1, 2026 at 1:33:38 PM UTC

Unix Seconds (s)1793540018

Unix Milliseconds (ms)1793540018000

Relative TimeJust now

Cron Syntax Generator

Build, edit, and translate 5-part cron schedule expressions.

Cron Expression

Minute (0-59)

Hour (0-23)

Day (1-31)

Month (1-12)

1-5

Weekday (0-6)

Schedule Intelligence

PARSED

Human-Readable Translation

"At 9:00 AM, Monday through Friday"

Next 5 Scheduled Executionslocal time

1Mon, Nov 2, 9:00 AM
in 19 hr
2Tue, Nov 3, 9:00 AM
in 2 days
3Wed, Nov 4, 9:00 AM
in 3 days
4Thu, Nov 5, 9:00 AM
in 4 days
5Fri, Nov 6, 9:00 AM
in 5 days

Quick Syntax Reference

* = Any / every value
, = Value list separator (e.g. 1,15,30)
- = Range of values (e.g. 1-5 for Mon-Fri)
/ = Step values (e.g. */15 for every 15)